Cheap Flights from Seattle (SEA) to Pittsburgh (AGC)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Pittsburgh, PA (AGC-Allegheny County)

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Find available prices by choosing your travel dates.
Flights from Seattle (SEA) to Pittsburgh (AGC)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Allegheny County
Distance
2137 mi

Seattle to Pittsburgh Flights

The cheapest times to fly from Seattle to Pittsburgh

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

 

The best time to book a flight from Seattle to Pittsburgh

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

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 Pittsburgh in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Pittsburgh 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 Pittsburgh 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 Allegheny County Airport (AGC) cost?
Discover the latest flight deals from SEA to AGC by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to AGC?
The cheapest flights from SEA to AGC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to AGC?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SEA to AGC. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Allegheny County Airport (AGC)?
Direct flights from Seattle - Tacoma Intl. Airport (SEA) to Allegheny County Airport (AGC) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with Expedia’s filters. Enter your dates and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SEA to AGC?
Usually you’ll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Allegheny County Airport (AGC)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Allegheny County Airport (AGC) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**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.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Allegheny County Airport (AGC) last-minute?
Booking your ticket from SEA to AGC right before your getaway is typically more expensive. However, if there’s some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a SEA to AGC flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to AGC flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the stress out of travel planning. Simply pick your flights and select from our extensive range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Allegheny County Airport (AGC)?
In most cases, you can cancel or modify your SEA to AGC flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline’s fees and rules on flight changes, or if you need more information, head to our Customer Service portal.

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*Available to One Key members.