Cheap flights from Pittsburgh to Seattle from $109

In general, February is the cheapest month to fly from Pittsburgh to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $217. If you don’t want to visit Seattle in February, then you should wait until October to fly from Pittsburgh, when ticket prices are also cheap, with an average price of $277.

On average, the least expensive day to fly to Seattle from Pittsburgh is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $402. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Pittsburgh because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $490.

Flying to Seattle from Pittsburgh in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $431 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $446. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Pittsburgh to Seattle/Tacoma Intl for the best Pittsburgh - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Pittsburgh when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $332 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Pittsburgh for as low as $303 on momondo.

There are 4 cabin classes available to choose from on Pittsburgh to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 2% on your flight if you consider stops on a Pittsburgh to Seattle flight.

As of April 2026, prices for Pittsburgh to Seattle flights are approximately 12% cheaper when compared to flights at the same time last year.

American Airlines, Southwest, and Delta are the most popular carriers operating from Pittsburgh to Seattle/Tacoma Intl

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Seattle from Pittsburgh according to our data. Alaska Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Minneapolis (MSP) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.

Flights via Minneapolis (MSP) offer the lowest average round-trip price of $204.

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 8h 10m.

Dallas (DFW) has the shortest average layover time for this route: 0h 51m.

The number of flights available between Pittsburgh and Seattle is 1 per day as of April 2026. The most frequent departure time is 7:00PM, with 100% of daily flights leaving in the evening.

As of April 2026, there are 10 flights per week flying from Pittsburgh to Seattle. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.