$58 Cheap Flights from Seattle (SEA) to Phoenix (PHX)

View $58 flight on Sun, Oct 12, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Seattle to Phoenix (SEA-PHX)

Prices were available within the past 7 days and start at $58 for one-way flights and $99 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Nov 3 - Mon, Nov 10
SEA
Seattle
PHX
Phoenix
$99 Roundtrip, found 2 days ago
$99
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Nov 3 from Seattle to Phoenix, returning Mon, Nov 10, priced at $99 found 2 days ago
Frontier Airlines
Sun, Oct 5 - Thu, Oct 9
SEA
Seattle
PHX
Phoenix
$105 Roundtrip, just found
$105
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Oct 5 from Seattle to Phoenix, returning Thu, Oct 9, priced at $105 just found
Frontier Airlines
Fri, Sep 26 - Sun, Sep 28
SEA
Seattle
PHX
Phoenix
$115 Roundtrip, just found
$115
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 26 from Seattle to Phoenix, returning Sun, Sep 28, priced at $115 just found
Frontier Airlines
Thu, Oct 30 - Mon, Nov 3
SEA
Seattle
PHX
Phoenix
$116 Roundtrip, just found
$116
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 30 from Seattle to Phoenix, returning Mon, Nov 3, priced at $116 just found
Frontier Airlines
Thu, Sep 11 - Mon, Sep 22
SEA
Seattle
PHX
Phoenix
$119 Roundtrip, found 1 hour ago
$119
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Sep 11 from Seattle to Phoenix, returning Mon, Sep 22, priced at $119 found 1 hour ago
Frontier Airlines
Thu, Oct 30 - Mon, Nov 3
SEA
Seattle
PHX
Phoenix
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 30 from Seattle to Phoenix, returning Mon, Nov 3, priced at $128 just found
Alaska Airlines
Fri, Sep 26 - Sun, Sep 28
SEA
Seattle
PHX
Phoenix
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, Sep 26 from Seattle to Phoenix, returning Sun, Sep 28, priced at $148 just found
Southwest Airlines
Wed, Oct 8 - Sat, Oct 11
SEA
Seattle
PHX
Phoenix
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Oct 8 from Seattle to Phoenix, returning Sat, Oct 11, priced at $157 just found
American Airlines
Wed, Oct 8 - Sat, Oct 11
SEA
Seattle
PHX
Phoenix
$157 Roundtrip, just found
$157
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 8 from Seattle to Phoenix, returning Sat, Oct 11, priced at $157 just found
United
Wed, Aug 27 - Wed, Sep 3
SEA
Seattle
PHX
Phoenix
$192 Roundtrip, just found
$192
Roundtrip
just found
Select United flight, departing Wed, Aug 27 from Seattle to Phoenix, returning Wed, Sep 3, priced at $192 just found

Find the cheapest month to fly from Seattle (SEA) to Phoenix (PHX)

January is typically the cheapest month to fly

From $48 - $218 per traveler.

Graph displaying average flight prices per month

Alternative airports near Phoenix

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

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $181
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $181
Flights from Seattle (SEA) to Phoenix (PHX)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$99
Distance
1106 mi
Average flight time
2 hours 54 mins

Seattle to Phoenix Flights

The cheapest times to fly from Seattle to Phoenix

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 Seattle to Phoenix are during the month of November. You can find some of the cheapest flights from Seattle to Phoenix with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Phoenix

Sunday is one of the best days to book for cheap flights from Seattle to Phoenix: 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 Seattle to Phoenix

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 Seattle to Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $58 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 Seattle to Phoenix 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 Seattle to Phoenix 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.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) cost?
You can land cheap return fares from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) starting at $110. Grab your seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving SEA on August 13 2025 and touching down at PHX. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from SEA to PHX?
The cheapest flights from SEA to PHX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
When leaving Seattle - Tacoma Intl. Airport (SEA), 5 carriers can take you straight to Sky Harbor Intl. Airport (PHX) without any stopovers, including:

  • Alaska Airlines
  • Delta Air Lines
  • American Airlines
  • Southwest Airlines
  • Frontier Airlines

What is the cheapest airline that flies from SEA to PHX?
Currently, the cheapest airline operating one-way flights from SEA to PHX is Frontier Airlines. You can book a seat on this route from $62. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on August 16 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
Every day on average, 19 nonstop flights take off from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX). Choose the departure date that best fits your itinerary.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
The 11 AM departures from SEA to PHX are the busiest. These flights can come with a higher price due to their popularity. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from SEA to PHX?
Depart on a Thursday if you're searching for the best selection of flights from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
The earliest flight jetting off from Seattle - Tacoma Intl. Airport (SEA) is at around 5:35AM UTC-8. Board this flight and you'll land at Sky Harbor Intl. Airport (PHX) at approximately 9:20AM UTC-7. The total time in the air is 2h 45m.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
It takes around 2 hours and 55 minutes to fly the 1,100 mi from SEA to PHX.
What airline has the least delays from SEA to PHX?
With 100% of flights usually landing on time, United Airlines has the best on-time performance for direct flights from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX). To check your flight status and receive notifications if anything changes, use the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Phoenix from Seattle - Tacoma Intl. Airport (SEA)?
Sky Harbor Intl. Airport (PHX) is the only airport in Phoenix with direct flights from Seattle - Tacoma Intl. Airport (SEA). Compare your options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) last-minute?
Booking your ticket from SEA to PHX just before your getaway is typically more expensive. But if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a SEA to PHX flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to PHX flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of travel planning. Just secure your flights and select from our extensive range of stays, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX)?
Typically, you're able to cancel or reschedule your SEA to PHX flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need further information, head to our Customer Service portal.

Explore a world of travel with Expedia

Seattle nearby Airports

Seattle Paine Field Intl. Airport

Seattle Paine Field Intl. Airport to Phoenix
$107.99

Seattle

Boeing Field to Phoenix
$786.61
*Available to One Key members.