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Cheap Flights from Pittsburgh International (PIT) to Seattle (SEAA)

Compare Pittsburgh International to Seattle flight deals

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

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Flight deals from Pittsburgh International to Seattle

Looking for a cheap last-minute deal or the best return flight from Pittsburgh International Airport to Seattle? If you want to travel next month, return fares start from £185. Find the lowest prices on one-way and return tickets right here.
Seattle.£71 per passenger.Departing Tue, 8 Sep.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Pittsburgh International on Tue, 8 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £71, select.
Seattle.£88 per passenger.Departing Fri, 28 Aug.One-way flight with United.Outbound indirect flight with United, departs from Pittsburgh International on Fri, 28 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £88, select.
Seattle.£88 per passenger.Departing Sat, 4 Jul.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Pittsburgh International on Sat, 4 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £88, select.
Seattle.£89 per passenger.Departing Sat, 20 Jun.One-way flight with United.Outbound indirect flight with United, departs from Pittsburgh International on Sat, 20 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £89, select.
Seattle.£89 per passenger.Departing Thu, 15 Oct.One-way flight with United.Outbound indirect flight with United, departs from Pittsburgh International on Thu, 15 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £89, select.
Seattle.£122 per passenger.Departing Thu, 8 Apr.One-way flight with United.Outbound indirect flight with United, departs from Pittsburgh International on Thu, 8 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £122, select.
Seattle.£130 per passenger.Departing Sun, 6 Dec.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Pittsburgh International on Sun, 6 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £130, select.
Seattle.£164 per passenger.Departing Tue, 20 Oct.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Pittsburgh International on Tue, 20 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £164, select.
Seattle.£172 per passenger.Departing Mon, 7 Dec.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Pittsburgh International on Mon, 7 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £172, select.
Seattle.£173 per passenger.Departing Sat, 19 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Pittsburgh International on Sat, 19 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £173, select.
Seattle.£173 per passenger.Departing Fri, 28 Aug.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Pittsburgh International on Fri, 28 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £173, select.
Seattle.£174 per passenger.Departing Fri, 3 Jul.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Pittsburgh International on Fri, 3 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £174, select.
Seattle.£203 per passenger.Departing Tue, 30 Jun.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Pittsburgh International on Tue, 30 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From £203, select.

Find the cheapest month to fly from Pittsburgh International to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Pittsburgh International to Seattle flights are currently cheapest in September.
Jun
from £89
Jul
from £88
Aug
from £88
Sep
from £71
Oct
from £89
Nov
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Dec
from £130
Jan
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Feb
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Mar
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Apr
from £122
May
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Direct flights from Pittsburgh International to Seattle

Alternative Pittsburgh International to Seattle routes

Looking for the cheapest, fastest or easiest route from Pittsburgh International to Seattle? You could fly into the following airports instead.

Seattle Lake Union SPB

1 mile from central Seattle
Closest
from £278
Search flights

Seattle Boeing Fld

7 miles from central Seattle
from £271
Search flights

Seattle / Tacoma International

12 miles from central Seattle
Cheapest
from £71
Search flights

Paine Field

20 miles from central Seattle
Search flights

Pittsburgh to Seattle: Flight information

The things to know before you go.
Cheapest flight found£71
Cheapest month to flySeptember
Average flight time5 hrs, 21 mins
Most popular airlineAlaska Airlines
Average flights per week23

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

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Pittsburgh International to Seattle is £173. 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.
Alaska Airlines, Finnair and American Airlines fly direct from Pittsburgh International to Seattle.
As of June 2026, there are 23 flights per week flying from Pittsburgh International to Seattle.
The cheapest month to fly from Pittsburgh International to Seattle is usually August.
If you're flying from Pittsburgh International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 12.1 miles away from the centre of Seattle. We've found flights into this airport from £173.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Pittsburgh International Airport to Seattle on Friday, 21 August 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 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.
In June, the average temperature is usually around 14°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Southwest Airlines and Alaska Airlines offer the cheapest flight tickets to Seattle.

Flying from Pittsburgh International Airport (PIT) to Seattle: what you need to know

  • Expect to be travelling for 4 hours 35 minutes. On average, that's the duration of a direct flight from Pittsburgh International Airport to Seattle.

  • Seattle is three hours behind Pittsburgh, where Pittsburgh International Airport is located. Seattle runs on the UTC-8 timezone.

  • With nine flights a week between the two airports, Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA) is the most popular route. Hop on Alaska Airlines's 08:03 flight to get your journey from PIT to SEA underway.

  • To avoid rushing for your PIT to Seattle flight, allow plenty of time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Travelling over a peak time such as July? Major public holidays and other popular seasons can mean longer lines and delays at security. Play it safe and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Direct Pittsburgh International Airport to Seattle tickets are available for booking. Seattle-Tacoma International Airport (SEA) is where you'll complete your journey.

  • Alaska Airlines is a popular carrier that offers direct flights from Pittsburgh International Airport to Seattle.

  • PIT is around 21 kms (13 miles) from central Pittsburgh. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 30 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the trip time to be around 45 minutes.

  • Planning to catch an early flight from Pittsburgh International Airport to Seattle? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by choosing one of these stays near PIT:

  • 77% of flights that leave from Pittsburgh International Airport make it to their destination on schedule.

  • PIT is located at 1000 Airport Boulevard.

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

  • £71 is currently the best price for a one-way Pittsburgh International Airport to Seattle flight. Return plane tickets start from £173. These fares can change based on demand and availability.

  • Don't wait until the last moment. You're more likely to pick up cheap flights from PIT to Seattle if you book early. Airlines often have some amazing early bird deals.

  • If you're willing to be flexible with your travel dates, make the most of the 'Whole month' search tool. It'll show you the lowest price across each month when searching for a Pittsburgh International Airport to Seattle ticket.

  • There's no need to keep looking every day to find out if fares have dropped when you create a Price Alert. We'll let you know when there's an even better deal on cheap flights from PIT to Seattle.

  • Pick your preferred departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Pittsburgh International Airport to Seattle by 'Best,' 'Cheapest' or 'Fastest.'

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to the centre of Seattle takes about 25 minutes by car. The centre is roughly 23 kms (14 miles) away.

  • Getting there by public transport typically takes 35 minutes.

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from Pittsburgh International Airport to Seattle. Stay at one of these accommodation options near SEA instead:

  • Get the best deal by booking your ride from Seattle-Tacoma International Airport around one week ahead of your flight from PIT to Seattle.

Seattle Paine Field International Airport (PAE)

  • The centre of Seattle is about 40 kms (25 miles) from Seattle Paine Field International Airport (PAE). After your flight from Pittsburgh International Airport to Seattle has touched down and you've made your way through the terminal, the drive should take about 40 minutes.

  • The journey will take roughly 1 hour 30 minutes on public transport.

  • Place the 'Do not disturb' sign on your door and relax at a hotel close to PAE. Here are a few options where you can take a load off after your PIT to Seattle flight:

  • Pick the vehicle you actually want, not just what's left, by securing your ride from PAE in advance. You can also avoid paying more than you need to, especially when the airport is busy.

King County International Airport (BFI)

  • King County International Airport (BFI) is about 11 kms (7 miles) from the centre of Seattle. It'll take you about 20 minutes to reach the city centre in a ride-share or taxi once you've hopped off your flight from Pittsburgh International Airport to Seattle.

  • The journey takes around 35 minutes if you use public transport.

  • Enjoy a restful, unhurried start to your break by staying at a hotel near BFI after your PIT to Seattle flight. Recover from a day of travel or just give yourself time to get your footing in a new city at:

  • Rental providers sometimes offer deals on early bookings, so reserve your ride from BFI a few weeks in advance of your flight from Pittsburgh International Airport to Seattle. A bit of planning goes a long way in savings.

Best time to go to Seattle

  • It's time to plan your trip dates for your flight from Pittsburgh International Airport to Seattle. July is the busiest month for a trip to Seattle. If you like a more peaceful vibe, go in December.

  • Book a Pittsburgh International Airport to Seattle plane ticket with a departure in August if you're eager to explore the city during its warmest month. Expect temperatures to range from 12ºC to 28ºC.

  • Search for cheap tickets from PIT to Seattle in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -1ºC and 11ºC on average.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the ideal place to stay. After booking your flight from Pittsburgh International Airport to Seattle, browse our range of accommodation options including:

  • There are so many things to explore in this city it can be hard to know where to begin. Pike Place Market, Space Needle and Seattle Skyline are leading attractions which should be on any good Seattle itinerary.

Explore more of the United States

  • Seattle has its own special appeal, but there are so many other parts of the United States you should also see. Around 241 kms (150 miles) south of Seattle, a trip to Portland will keep you on the go. Start with attractions like Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.

  • Around 370 kms (230 miles) east of Seattle, Spokane is another essential stop in the United States. No visit is complete without checking out Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

Plan the rest of your trip from Pittsburgh to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.