Cheap Flights from Pittsburgh International to Seattle / Tacoma International

Compare Pittsburgh International to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

Book the best Seattle / Tacoma International fare with no extra fees

Flight deals from Pittsburgh International to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best round-trip flight from Pittsburgh International Airport to Seattle / Tacoma International Airport? If you want to travel next month, round-trip fares start from AED 1,184. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Pittsburgh International to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Pittsburgh International to Seattle / Tacoma International flights are currently cheapest in September.

Direct flights from Pittsburgh International to Seattle / Tacoma International

Pittsburgh International to Seattle / Tacoma International: Alternative routes

Compare routes from Pittsburgh International to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Pittsburgh to Seattle: Flight information

The things to know before you go.
Cheapest flight foundAED 449
Cheapest month to flySeptember
Average flight time5 hrs, 21 mins
Most popular airlineAlaska Airlines
Average flights per week16

Finding cheap flights from Pittsburgh International to Seattle / Tacoma International: Frequently asked questions

The best price we found for a round-trip flight from Pittsburgh International to Seattle / Tacoma International is AED 903. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 21 minutes is the average flight time from Pittsburgh International to Seattle / Tacoma International.
Alaska Airlines, Finnair and American Airlines fly direct from Pittsburgh International to Seattle / Tacoma International.
There are 16 flights per week flying from Pittsburgh International to Seattle / Tacoma International, as of May 2026.
The cheapest month to fly from Pittsburgh International to Seattle / Tacoma International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Pittsburgh International Airport to Seattle / Tacoma International Airport on Wednesday, September 2, 2026.
Yes – the average flight time is 5 hours and 21 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United and Alaska Airlines offer the cheapest flight tickets to Seattle / Tacoma International.

Traveling from Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA): what you need to know

  • Hop on a direct flight from Pittsburgh International Airport to Seattle-Tacoma International Airport and you'll be in the air for an average of 5 hours 15 minutes.

  • Seattle is three hours behind Pittsburgh and follows the UTC-7 timezone.

  • Flights from PIT to SEA start at 07:00 — the earliest with Alaska Airlines. The last departure is at 18:55 with Alaska Airlines. Overall, there are eight weekly Pittsburgh International Airport to Seattle-Tacoma International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to board your PIT to SEA flight.

  • During popular months like July, you'll want to get to the airport earlier than normal. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're traveling during peak periods in general.

  • Alaska Airlines is your gateway to discovering Seattle (and perhaps some other great parts of United States!). Check out the direct flights from Pittsburgh International Airport to Seattle-Tacoma International Airport offered by this airline.

  • Alaska Airlines is the airline with the highest passenger demand for this route.

  • With a dependable 81.48% of services arriving as scheduled, Alaska Airlines is the most punctual carrier for PIT to SEA flights.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Pittsburgh International Airport to Seattle-Tacoma International Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to tour the city of your choice. Stopovers between PIT and SEA include:

    • Minneapolis-St. Paul International Airport

    • Detroit Metropolitan Wayne County Airport

    • O'Hare International Airport

How to find the cheapest flights from Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA)

  • Currently, AED 449 is the lowest price we've seen for a one-way Pittsburgh International Airport to Seattle-Tacoma International Airport flight. The best price for a return ticket is AED 904. Keep in mind that fares could change due to demand at the time of booking.

  • Get cheap tickets from PIT to SEA by booking at least six months ahead. According to our research, that's the sweet spot for bagging a bargain.

  • The cheapest month for flights from Pittsburgh International Airport to Seattle-Tacoma International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have a flexible schedule.

  • Getting your hands on cheap flights from PIT to SEA couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Tailor your flights using filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Pittsburgh International Airport to Seattle-Tacoma International Airport.

Handy information about Pittsburgh International Airport (PIT)

  • PIT is located at 1000 Airport Boulevard.

  • 76.88% of flights leaving from Pittsburgh International Airport arrive at their destination on time.

  • To get to Pittsburgh International Airport from central Pittsburgh, it'll take about 25 minutes if you're planning to drive. This depends on traffic though. It's approximately 27 kilometers from the airport to the city center.

  • Need a convenient hotel near PIT? If you're boarding an early flight from Pittsburgh International Airport to Seattle-Tacoma International Airport, these accommodation options will have you moments from check-in:

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Seattle-Tacoma International Airport to central Seattle has a drive time of about 20 minutes. It's approximately 23 kilometers away.

  • If you're taking public transport, expect a journey time of roughly 55 minutes.

When to fly to Seattle-Tacoma International Airport (SEA)

  • The quietest month for a flight from Pittsburgh International Airport to Seattle-Tacoma International Airport is May, while July is the most popular. Pick the ideal time to go to Seattle based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Book your flights from Pittsburgh International Airport to Seattle-Tacoma International Airport in this month if this is the kind of weather you like.

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for cheap tickets from PIT to SEA sometime then if you like traveling in cooler conditions.

Explore more of United States

  • You've done Seattle, now it's time to discover other parts of United States. Travel about 241 kilometers south to Portland to tick off its must-visit sights. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, you'll have a full itinerary ahead.

  • Around 370 kilometers east of Seattle, Spokane is another essential stop in United States. No visit is complete without checking out Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.