An Alaska Airlines plane taking off with a snow-capped mountain in the background.

$170 Cheap Flights from Pittsburgh (PIT) to Seattle (SEA)

View $170 flight on Wed, Dec 16, 2026Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Pittsburgh to Seattle (PIT-SEA)

Prices were available within the past 7 days and start at $170 for one-way flights and $339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Mon, Nov 2 - Thu, Nov 12
PIT
Pittsburgh
SEA
Seattle
$339 Roundtrip, found 4 hours ago
$339
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Mon, Nov 2 from Pittsburgh to Seattle, returning Thu, Nov 12, priced at $339 found 4 hours ago
Southwest Airlines
Sat, Oct 24 - Sat, Nov 7
PIT
Pittsburgh
SEA
Seattle
$341 Roundtrip, found 18 hours ago
$341
Roundtrip
found 18 hours ago
Select Southwest Airlines flight, departing Sat, Oct 24 from Pittsburgh to Seattle, returning Sat, Nov 7, priced at $341 found 18 hours ago
Southwest Airlines
Thu, Dec 10 - Tue, Dec 15
PIT
Pittsburgh
SEA
Seattle
$344 Roundtrip, found 13 hours ago
$344
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Thu, Dec 10 from Pittsburgh to Seattle, returning Tue, Dec 15, priced at $344 found 13 hours ago
Southwest Airlines
Tue, Dec 8 - Wed, Dec 16
PIT
Pittsburgh
SEA
Seattle
$346 Roundtrip, found 7 hours ago
$346
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Tue, Dec 8 from Pittsburgh to Seattle, returning Wed, Dec 16, priced at $346 found 7 hours ago
Southwest Airlines
Sat, Nov 7 - Wed, Nov 11
PIT
Pittsburgh
SEA
Seattle
$348 Roundtrip, just found
$348
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Nov 7 from Pittsburgh to Seattle, returning Wed, Nov 11, priced at $348 just found
Southwest Airlines
Thu, Dec 10 - Tue, Dec 15
PIT
Pittsburgh
SEA
Seattle
$349 Roundtrip, found 13 hours ago
$349
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Thu, Dec 10 from Pittsburgh to Seattle, returning Tue, Dec 15, priced at $349 found 13 hours ago
United
Tue, Oct 20 - Sat, Oct 24
PIT
Pittsburgh
SEA
Seattle
$362 Roundtrip, found 1 day ago
$362
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 20 from Pittsburgh to Seattle, returning Sat, Oct 24, priced at $362 found 1 day ago
American Airlines
Fri, Nov 6 - Tue, Nov 10
PIT
Pittsburgh
SEA
Seattle
$366 Roundtrip, found 6 hours ago
$366
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Fri, Nov 6 from Pittsburgh to Seattle, returning Tue, Nov 10, priced at $366 found 6 hours ago
Delta
Sat, Oct 24 - Sun, Oct 25
PIT
Pittsburgh
SEA
Seattle
$431 Roundtrip, found 1 day ago
$431
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 24 from Pittsburgh to Seattle, returning Sun, Oct 25, priced at $431 found 1 day ago
JetBlue Airways
Sat, Oct 17 - Fri, Oct 23
PIT
Pittsburgh
SEA
Seattle
$678 Roundtrip, found 12 hours ago
$678
Roundtrip
found 12 hours ago
Select JetBlue Airways flight, departing Sat, Oct 17 from Pittsburgh to Seattle, returning Fri, Oct 23, priced at $678 found 12 hours ago

Find the cheapest month to fly from Pittsburgh (PIT) to Seattle (SEA)

October is typically the cheapest month to fly

From $200 - $307 per traveler.

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

Pittsburgh (PIT) to Seattle (SEA) at a glance

Travel from Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA) with a range of airlines offering competitive options. Whether you're looking for budget-friendly fares or full-service flights, you can easily compare choices to suit your travel plans and budget. Discover essential information on flight times and details for flights from Pittsburgh to Seattle as you prepare to explore the iconic sights and vibrant neighborhoods of Seattle.

  • Fastest flight duration: around 5h 15m non-stop
  • Route distance: roughly 2,100 miles (3,380 km)
  • Flights per week: around 25+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $90–$370, depending on seasonality and how far ahead you book

Flights from Pittsburgh International Airport (PIT) to Seattle - Tacoma International Airport (SEA)

Based on the latest traveler bookings, here are the top airlines favored for flights from Pittsburgh to Seattle, including both non-stop and one-stop options. Popular layover choices include O'Hare International Airport (ORD) with an approximately 1-hour 15-minute layover, Denver International Airport (DEN), and Midway International Airport (MDW), both also featuring about 1-hour 15-minute layovers. This variety allows you to balance price, total travel time, and cabin class to discover the ideal travel itinerary.

  • Alaska Airlines: This full-service airline provides both non-stop and one-stop flights, with one-way fares generally falling between $115 and $440. It represents about 28% of departures on this route, offering a typical non-stop flight duration of 5 hours and 15 minutes.
  • American Airlines: A full-service airline that offers one-stop flights, American Airlines typically has one-way fares ranging from $90 to $295. It accounts for approximately 19% of departures on this route, with an in-flight duration of 6 hours and 30 minutes, leading to a total trip time of around 8 hours (including layover).
  • United: This full-service carrier offers both non-stop and one-stop services, with one-way fares usually priced between $120 and $380. United makes up about 19% of departures on this route, featuring a standard one-stop flight time of 6 hours and 30 minutes, resulting in a total travel duration of approximately 8 hours.
  • Delta: As a full-service airline providing one-stop flights, Delta's one-way fares typically range from $100 to $330. It constitutes around 18% of departures on this route, with an in-flight time of 6 hours and 30 minutes and an overall journey time of about 8 hours (including layover).
  • Southwest Airlines: Known as a low-cost carrier, Southwest offers one-stop and multi-stop options, with one-way fares usually spanning from $90 to $380. It accounts for roughly 13% of departures on this route, with a standard one-stop flight taking 6 hours and 30 minutes, leading to a total travel time of about 8 hours.

Travelers flying from Pittsburgh to Seattle have the option to enhance their journey with upgraded services. Alaska Airlines provides first class and business class, while Delta features first class and premium economy, and United offers first class seating.

Best time to fly from Pittsburgh (PIT) to Seattle (SEA)

The most popular months for travelers flying from Pittsburgh to Seattle are March, July, and August, when peak temperatures in Seattle reach up to 67.5°F in August. If you prefer quieter travel, consider October, the least busy time to visit with temperatures around 52.7°F and typically the lowest average one-way fare (around $189). Flight availability peaks in July, with approximately 44 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 21 flights per week.

  • Cheapest time to fly: October usually offers good deals with average one-way fare around $189, roughly 11% cheaper than the yearly average.
  • More budget-friendly months to fly: February, November, and April typically offer average one-way fares of around $200.
  • Most flight options: July has the highest number of flights from Pittsburgh to Seattle, with approximately 44 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)Average22$212
February40.5°F (4.7°C)Average21$197
March43.9°F (6.6°C)Moderately High25$208
April48.6°F (9.2°C)Average24$202
May55.8°F (13.2°C)Average31$235
June61.0°F (16.1°C)Average34$232
July67.1°F (19.5°C)Moderately High44$233
August67.5°F (19.7°C)Moderately High38$218
September61.3°F (16.3°C)Average39$205
October52.7°F (11.5°C)Moderately Low37$189
November44.2°F (6.8°C)Moderately Low28$199
December39.2°F (4.0°C)Moderately Low32$223

*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 Pittsburgh (PIT) to Seattle (SEA)

  • Pittsburgh to Renton (PIT-RNT): Renton Municipal Airport (RNT) is located approximately 5 miles from Seattle - Tacoma International Airport (SEA).
  • Pittsburgh to Seattle (PIT-BFI): Boeing Field Airport (BFI) can be found about 6 miles from Seattle - Tacoma International Airport (SEA).
  • Pittsburgh to Seattle (AGC-SEA): Allegheny County Airport (AGC) lies roughly 20 miles from Pittsburgh International Airport (PIT).

How to find the best prices for flights from Pittsburgh (PIT) to Seattle (SEA)

Getting some of the best deals on flights from Pittsburgh 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 usually found when booking 2-8 weeks in advance, which is when most travelers make their reservations. Afternoon departures (12pm-6pm) often offer lower prices, while evening flights (6pm-12am) are more popular. Additionally, flying on Sunday tends to be cheaper, although Friday remains the most sought-after 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 Pittsburgh International Airport

Seattle welcomes travelers from Pittsburgh 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 from the airport and can be reached on foot, while Tukwila Station, a train station, is situated about 4.3 miles away and is typically accessed by car.

Frequently asked questions

How much does a flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $170 and cheap return flights from $339 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $137 to $1430, and return flights typically cost between $292 and $1998. 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 Pittsburgh, PA (PIT-Pittsburgh 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
January is the cheapest month to fly from Pittsburgh, PA (PIT) to Seattle, WA (SEA), with average return fares around $286. This price is about 20% lower than the average throughout the year, as January is generally a quieter travel month. Other economical months to consider are February and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Hawaiian Airlines operates around 7 direct flights from PIT to SEA every week.
What is the cheapest airline that flies from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Sun Country Airlines is one of the cheapest airlines offering connecting flights from Pittsburgh (PIT) to Seattle (SEA), with round-trip tickets starting from around $255. 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Pittsburgh, PA (PIT-Pittsburgh 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Pittsburgh (PIT) to Seattle (SEA) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. WN offers the most daily flights from PIT to SEA, 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly from Pittsburgh, PA (PIT) to Seattle, WA (SEA) is in January and February. With return flights averaging around $286, these months offer a budget-friendly option to explore the Pacific Northwest while avoiding the summer rush.*Prices based on flights available on Expedia in the last year.
How many flights per day from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 1 nonstop flights per day from Pittsburgh Intl. (PIT) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Pittsburgh International Airport (PIT) to Seattle - Tacoma International Airport (SEA) typically departs at around 5:00 AM, operated by American Airlines. An early departure like this allows you to make the most of your day upon arrival 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Pittsburgh, PA (PIT) to Seattle, WA (SEA) are in the early morning, from 6am to 9am. About 33% of passengers prefer this time window. Many major carriers, including American Airlines, United Airlines, and Delta Air Lines, offer flights during this window. This timing is popular because it allows you to arrive in Seattle with a full day ahead of you.
How long does it take to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Direct flights from PIT to SEA usually take about 5 hours 30 minutes, traveling roughly 2,118 miles. If you opt for a connecting flight, expect to add around 3 hours 30 minutes to your journey. 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
First class seats are offered on the PIT to SEA route. First class cabins are available on:

  • United Airlines
  • American Airlines
  • Delta Air Lines

How much is a business class flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Pittsburgh, PA (PIT) to Seattle, WA (SEA) typically costs between $1,456 - $2,032. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Pittsburgh, PA (PIT-Pittsburgh 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Pittsburgh, PA (PIT-Pittsburgh 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 Pittsburgh Intl. (PIT)?
If you're planning to travel to Seattle from Pittsburgh Intl. (PIT), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like O'Hare Intl. (ORD), Washington Dulles Intl. (IAD), Midway Intl. (MDW) 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Pittsburgh, PA (PIT-Pittsburgh 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Pittsburgh, PA (PIT-Pittsburgh 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 Pittsburgh, PA (PIT-Pittsburgh Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Pittsburgh, PA (PIT-Pittsburgh 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
Pittsburgh Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$338
Distance
2117 mi
Average flight time
2 hours 14 mins

*Flight schedules are subject to change.

*Available to One Key members.

 

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