Cheap Flights from SEA to PSC: When to Fly from Seattle to Pasco

The cheapest times to fly from SEA to PSC are

• January 8th to February 4th
• April 23rd to July 22nd
• August 20th to November 18th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEA to PSC is early to mid July. Prices can be as high as $317 for Thursday flights during mid December, or as low as $97 for Tuesday flights around early to mid July.

When to Fly to Pasco

Flying from Seattle, WA (SEA) to Pasco/Kennewick/Richland, WA (PSC) will usually cost between $97 to $172 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid July with an average ticket price of $97. Due to high demand the most expensive time to fly is mid December, with an average price of $199. Planning your trip to low-cost times can easily save you $102 on economy flights and even more on first-class flights. Generally, any price below $132 can be considered a good price for a round-trip SEA to PSC flight.

See below for a graph of average weekly prices for the SEA to PSC route. All prices are for round-trip tickets in USD.

Compared to other flights, the SEA to PSC flight is much cheaper than the average and costs much less than the average flight leaving from Seattle. The average price per mile (for a direct flight) is $0.48, which is a bit above average.

Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Thursdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $13 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $122. Return trip prices are from the PSC to SEA flight, and often highlight the quality of our data in showing the same trend.

Nonstop Flights and Layovers

Travelers looking to fly from SEA to PSC can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 17 minutes may be realistic.

Flight Questions Answered

Still have questions about flying from SEA to PSC? We’ve got answers.

Which airlines fly this route?

You can find 4 major airlines flying this route most often: Alaska, Delta, Singapore Airlines, United, and potentially more during busy seasons.

How far away is it from Tri Cities Airport to Seattle/Tacoma International Airport?

The distance between the two airports is roughly 172 miles or 277 kilometers.

How long does it take to fly from SEA to PSC?

The real-world flight time for a nonstop SEA to PSC flight is about 1 hour 17 minutes.

How many flights go between Seattle, WA and Pasco/Kennewick/Richland, WA?

It depends on the day of the week and the date, but a typical day might have around 25 available flights from SEA to PSC.

Airport Location Info

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.