$105 Cheap Flights from Phoenix (PHX) to Seattle (SEA)

View $105 flight on Tue, Sep 15, 2026Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Phoenix to Seattle (PHX-SEA)

Prices were available within the past 7 days and start at $105 for one-way flights and $207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Sep 8 - Thu, Sep 17
PHX
Phoenix
SEA
Seattle
$207 Roundtrip, found 2 days ago
$207
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Phoenix to Seattle, returning Thu, Sep 17, priced at $207 found 2 days ago
Frontier Airlines
Wed, Oct 14 - Wed, Oct 21
PHX
Phoenix
SEA
Seattle
$210 Roundtrip, just found
$210
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Oct 14 from Phoenix to Seattle, returning Wed, Oct 21, priced at $210 just found
Alaska Airlines
Mon, Aug 17 - Wed, Aug 26
PHX
Phoenix
SEA
Seattle
$213 Roundtrip, found 2 days ago
$213
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Aug 17 from Phoenix to Seattle, returning Wed, Aug 26, priced at $213 found 2 days ago
Alaska Airlines
Wed, Aug 19 - Fri, Aug 28
PHX
Phoenix
SEA
Seattle
$215 Roundtrip, found 2 days ago
$215
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Phoenix to Seattle, returning Fri, Aug 28, priced at $215 found 2 days ago
Frontier Airlines
Tue, Jul 28 - Wed, Aug 5
PHX
Phoenix
SEA
Seattle
$220 Roundtrip, found 1 hour ago
$220
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Jul 28 from Phoenix to Seattle, returning Wed, Aug 5, priced at $220 found 1 hour ago
Alaska Airlines
Tue, Sep 1 - Wed, Sep 2
PHX
Phoenix
SEA
Seattle
$224 Roundtrip, just found
$224
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Sep 1 from Phoenix to Seattle, returning Wed, Sep 2, priced at $224 just found
Frontier Airlines
Fri, Aug 21 - Wed, Aug 26
PHX
Phoenix
SEA
Seattle
$225 Roundtrip, just found
$225
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Aug 21 from Phoenix to Seattle, returning Wed, Aug 26, priced at $225 just found
Southwest Airlines
Tue, Aug 25 - Wed, Sep 2
PHX
Phoenix
SEA
Seattle
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Tue, Aug 25 from Phoenix to Seattle, returning Wed, Sep 2, priced at $229 found 1 hour ago
American Airlines
Tue, Sep 1 - Wed, Sep 2
PHX
Phoenix
SEA
Seattle
$237 Roundtrip, just found
$237
Roundtrip
just found
Select American Airlines flight, departing Tue, Sep 1 from Phoenix to Seattle, returning Wed, Sep 2, priced at $237 just found
United
Tue, Sep 1 - Wed, Sep 2
PHX
Phoenix
SEA
Seattle
$257 Roundtrip, just found
$257
Roundtrip
just found
Select United flight, departing Tue, Sep 1 from Phoenix to Seattle, returning Wed, Sep 2, priced at $257 just found

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $248
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $248

What you need to know for your flight from Sky Harbor Intl. to Seattle - Tacoma Intl.

Phoenix (PHX) to Seattle (SEA) at a glance

Explore a range of options for flights from Phoenix (PHX) to Seattle (SEA) on this domestic short-haul route. Whether you prefer full-service airlines or low-cost carriers, you can easily compare choices to find the best itinerary that suits your budget and schedule. Discover the key details for flights from Sky Harbor International Airport to Seattle-Tacoma International Airport as you plan your visit to Seattle’s iconic attractions and vibrant neighborhoods.

  • Fastest flight duration: around 3h 15m non-stop
  • Route distance: roughly 1,100 miles (1,770 km)
  • Flights per week: around 120+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $50–$340, depending on seasonality and how far ahead you book

Flights from Sky Harbor International Airport (PHX) to Seattle - Tacoma International Airport (SEA)

According to recent traveler bookings, here are the top airlines favored for flights from Phoenix to Seattle, featuring both non-stop and one-stop options. Popular layover spots include Harry Reid International Airport (LAS) with approximately a 1 hour and 30-minute layover, Denver International Airport (DEN) with around a 1 hour and 15-minute layover, and Los Angeles International Airport (LAX), also about 1 hour and 15 minutes. This variety allows you to tailor your itinerary based on price, total travel time, and cabin class preferences.

  • Alaska Airlines: This full-service airline provides both non-stop and one-stop options. One-way ticket prices generally vary from $50 to $355, making up about 37% of flights on this route, with a typical non-stop travel duration of 3 hours and 15 minutes.
  • Delta: A full-service airline featuring non-stop flights, Delta's one-way fares usually range from $50 to $340. It accounts for approximately 28% of the departures on this route, with the total flight time being 3 hours and 15 minutes.
  • American Airlines: Offering both non-stop and one-stop services, American Airlines has one-way fares that typically fall between $55 and $400. This carrier represents about 15% of the departures on this route, with a standard non-stop journey time of 3 hours and 15 minutes.
  • Southwest Airlines: Known as a low-cost option, Southwest provides non-stop, one-stop, and multi-stop service with one-way fares generally ranging from $50 to $360. They account for roughly 12% of the departures on this route, with a usual non-stop travel time of 3 hours and 15 minutes.
  • Frontier Airlines: This budget airline offers non-stop and one-stop services, with one-way ticket prices typically ranging from $50 to $250. Frontier accounts for about 6% of the departures on this route, with a typical non-stop journey taking 3 hours and 15 minutes.

Travelers flying from Phoenix to Seattle have the option to enhance their experience with upgraded seats. Delta provides first class and premium economy, while American Airlines features first class, and Alaska Airlines offers both first class and business class service.

Best time to fly from Phoenix (PHX) to Seattle (SEA)

The most popular months for travelers flying from Phoenix to Seattle are February, March, and April, when peak temperatures in Seattle reach up to 48.6°F in April. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 61.3°F and typically the lowest average one-way fare (around $137). Flight availability peaks in April, with approximately 142 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 104 flights per week.

  • Cheapest time to fly: September usually offers good deals with average one-way fare around $137, roughly 8% cheaper than the yearly average.
  • More budget-friendly months to fly: June, August, and December typically offer average one-way fares of around $140.
  • Most flight options: April has the highest number of flights from Phoenix to Seattle, with approximately 142 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January40.3°F (4.6°C)Average104$150
February40.5°F (4.7°C)High121$159
March43.9°F (6.6°C)High137$163
April48.6°F (9.2°C)High142$178
May55.8°F (13.2°C)Average130$157
June61.0°F (16.1°C)Average115$138
July67.1°F (19.5°C)Average114$145
August67.5°F (19.7°C)Low108$138
September61.3°F (16.3°C)Low123$137
October52.7°F (11.5°C)Low120$144
November44.2°F (6.8°C)Average135$145
December39.2°F (4.0°C)Average133$143

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Phoenix (PHX) to Seattle (SEA)

  • Phoenix to Seattle (PHX-BFI): Boeing Field Airport (BFI) is located approximately 6 miles from Seattle - Tacoma International Airport (SEA), providing easy access to the city.
  • Mesa to Seattle (AZA-SEA): Phoenix - Mesa Gateway Airport (AZA) is roughly 22 miles from Sky Harbor International Airport (PHX), offering convenient connections to Seattle.
  • Mesa to Seattle (AZA-BFI): Phoenix - Mesa Gateway Airport (AZA) is about 22 miles from Sky Harbor International Airport (PHX), while Boeing Field Airport (BFI) is just 6 miles from Seattle - Tacoma International Airport (SEA).

How to find the best prices for flights from Phoenix (PHX) to Seattle (SEA)

Getting some of the best deals on flights from Phoenix to Seattle is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically found when booking two to eight weeks in advance, which coincides with when most travelers make their reservations. Morning departures from 5 a.m. to 12 p.m. tend to offer lower prices and are also popular, while flying on Saturday usually results in cheaper fares, even though Friday is the most common travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Sky Harbor International Airport

Seattle welcomes travelers from Phoenix with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles away on foot, while Tukwila Station, a train station, is situated around 4.3 miles from the airport and is best reached by car.

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $105 and cheap return flights from $207 Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $49 to $903, and return flights typically cost between $169 and $1600. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
January is the cheapest month to fly from Phoenix, AZ (PHX) to Seattle, WA (SEA), with average return fares around $206. This is about 14% lower than the average price throughout the year, as January tends to have less travel activity following the holiday season. Other economical months to fly from Phoenix to Seattle include February and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are 7 airlines offering direct flights from PHX to SEA:

  • American Airlines operates around 46 direct flights from PHX to SEA every week
  • Delta operates around 39 direct flights from PHX to SEA every week
  • Frontier Airlines operates around 7 direct flights from PHX to SEA every week
  • Hawaiian Airlines operates around 19 direct flights from PHX to SEA every week
  • Qatar Airways operates around 42 direct flights from PHX to SEA every week

What is the cheapest airline that flies from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
American Airlines is one of the cheapest airlines offering nonstop flights from Phoenix, AZ (PHX) to Seattle, WA (SEA), with round-trip tickets starting from around $302. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Phoenix, AZ (PHX) to Seattle, WA (SEA) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from Phoenix to Seattle, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
For flights from Phoenix, AZ (PHX) to Seattle, WA (SEA), January and September are the best months to travel. You can find return flights at around $206 in January, which is a great deal, while September offers a balance of good weather and moderate prices. These months provide a wonderful opportunity to enjoy Seattle's vibrant atmosphere without breaking the bank.*Prices based on flights available on Expedia in the last year.
How many flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
On average, there are around 16 nonstop flights per day from Sky Harbor Intl. (PHX) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Phoenix Sky Harbor International Airport (PHX) to Seattle - Tacoma International Airport (SEA) typically departs at around 12:10 AM, operated by American Airlines. An early departure like this allows you to make the most of your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Phoenix (PHX) to Seattle (SEA) are in the early morning, from 6am to 9am. About 28% of travelers prefer this time window. Many major carriers, including Alaska Airlines and Delta, offer flights during this window. This timing is favored because it allows you to make the most of your day in Seattle upon arrival.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A nonstop flight from PHX to SEA typically takes around 3 hours 20 minutes, covering approximately 1,107 miles. Connecting flights on this route usually add 4 hours 10 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Business class seats are offered on the PHX to SEA route with American Airlines and JetBlue Airways.First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines
  • Hawaiian Airlines

How much is a business class flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Phoenix, AZ (PHX) to Seattle, WA (SEA) typically costs between $982 - $1,435 per adult. A non-stop, one-way business class flight is usually around $495 - $766. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Sky Harbor Intl. (PHX)?
If you're planning to travel to Seattle from Sky Harbor Intl. (PHX), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Los Angeles Intl. (LAX), San Diego Intl. (SAN), John Wayne (SNA) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$207
Distance
1106 mi
Average flight time
2 hours 59 mins

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Phoenix to Seattle Flights

The cheapest times to fly from Phoenix to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Seattle are during the month of September. You can find some of the cheapest flights from Phoenix to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Seattle

Sunday is one of the best days to book for cheap flights from Phoenix to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $105 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phoenix to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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