Cheap Flights from Pittsburgh International 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 to Seattle? Find the lowest prices on one-way and return tickets right here.

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 August.

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.

Pittsburgh to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 2,132
Cheapest month to flyAugust
Average flight time5 hrs, 19 mins
Most popular airlineAlaska Airlines
Average flights per week25

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 R 4,365. 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 19 minutes is the average flight time from Pittsburgh International to Seattle.
Alaska Airlines, Hawaiian Airlines and Finnair fly direct from Pittsburgh International to Seattle.
As of May 2025, there are 25 flights per week flying from Pittsburgh International to Seattle.
The cheapest month to fly from Pittsburgh International to Seattle is usually May 2025.
If you're flying from Pittsburgh International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from R 4,365.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Pittsburgh International Airport to Seattle on Tuesday, 10 June 2025.
Yes – the average flight time is 5 hours and 19 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 May, the average temperature is usually around 12°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, United and Hawaiian Airlines offer the cheapest flight tickets to Seattle.

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

  • The average duration of a direct flight from Pittsburgh International Airport to Seattle is 4 hours 40 minutes.

  • Pittsburgh International Airport is located in Pittsburgh. Based in the UTC-7 timezone, Seattle is three hours behind Pittsburgh.

  • Pittsburgh International Airport (PIT) to Seattle-Tacoma International Airport (SEA) is the most traveled route, with nine weekly flights to pick from. You can travel from PIT to SEA at 08:03 with Alaska Airlines.

  • Allow plenty of time to make your PIT to Seattle flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at check-in and security are likely if you're travelling during high season, so allow a little extra breathing room. A good general rule for peak periods? Arrive up to four hours early for international flights and two hours for domestic departures.

  • You can book a direct Pittsburgh International Airport to Seattle ticket. Begin your trip at PIT and touch down at Seattle-Tacoma International Airport (SEA).

  • Alaska Airlines is a leading airline that operates direct flights from Pittsburgh International Airport to Seattle.

  • Central Pittsburgh to PIT is around 21 kilometres. Depending on traffic conditions, it'll take you about 25 minutes to reach there if you're catching a cab, ride-sharing or driving.

  • Want a hassle-free start to your trip? Stay near PIT. Whether you're catching an early flight from Pittsburgh International Airport to Seattle or don't want departure day to feel hectic, these hotels put convenience first:

  • When it comes to the on-time performance of Pittsburgh International Airport, 76.88% of flights meet their scheduled arrival time.

  • PIT is located at 1000 Airport Boulevard.

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

  • The lowest price we've seen for a one-way Pittsburgh International Airport to Seattle flight is R 2,132. The cheapest price for a return flight is R 4,365. Bear in mind fares can change due to demand at the time of booking.

  • Get cheap flights from PIT to Seattle by booking one month ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • Schedule your trip for May. That's the best month for scoring the biggest deals on Pittsburgh International Airport to Seattle tickets. If you're flexible on when you fly, use the 'Whole month' tool to find the cheapest price across every month.

  • There's no need to keep looking every day to see if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's an updated deal for cheap flights from PIT to Seattle.

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

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • The distance from Seattle-Tacoma International Airport (SEA) to central Seattle is roughly 23 kilometres. It takes about 20 minutes to reach the centre driving.

  • It'll take around 55 minutes to get there using public transport.

  • Book a hotel near SEA if you have a late flight from Pittsburgh International Airport to Seattle. Pick one of these accommodation options and make your first night all about catching up on rest:

  • Follow your own route with a Seattle-Tacoma International Airport rental car. Pick up a set of wheels from Thrifty, Europcar or Budget and discover more of Seattle and beyond.

  • Reserving your ride from Seattle-Tacoma International Airport around one week ahead of your flight from PIT to Seattle can help you get the lowest rate.

Lake Union Sea Plane Base Airport (LKE)

  • Central Seattle is located around 3 kilometres from Lake Union Sea Plane Base Airport (LKE). Once your flight from Pittsburgh International Airport to Seattle has landed and you've made your way through the terminal, expect a drive of about 10 minutes.

  • You can expect the trip to take about 25 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and rest at a hotel near LKE. Here are a few options where you can settle in after your PIT to Seattle flight:

Best time to go to Seattle

  • Before locking in your flights from Pittsburgh International Airport to Seattle, consider which time of year works best for you. Peak season in Seattle offers a lively atmosphere and plenty of things to do, while low season means you'll get better deals on hotels and smaller crowds.

  • Lock in a Pittsburgh International Airport to Seattle flight ticket with a departure in August to explore the city during its warmest month. Expect temperatures to range from 12ºC (54ºF) to 28ºC (82ºF).

  • If you want cooler conditions, look for a cheap ticket from PIT to Seattle in February when temperatures average between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

  • When it comes to searching for somewhere to lay your head, you'll find the best stays in Seattle right here. Browse these options once you've locked in your flight from Pittsburgh International Airport to Seattle:

  • There are so many things to explore in this city it can be tricky to work out where to begin. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are leading attractions which should feature on every Seattle itinerary.

Explore more of United States

  • You've visited Seattle, now it's time to explore other parts of United States. Travel around 241 kilometres south to Portland to tick off its popular sights. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, your itinerary will be busy.

  • If you're eager to discover another great destination in United States, head for Spokane, about 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are among its highlights.

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