Cheap Flights From Seattle - Tacoma Intl. (SEA) To Tri-Cities (PSC)

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Cheapest Flights from Seattle (SEA) to Pasco (PSC)

The cheapest flights to Tri-Cities found within the past 7 days were CA $112 round trip and CA $83 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $112 Roundtrip, found 21 hours ago
CA $112
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $112 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $154 Roundtrip, found 21 hours ago
CA $154
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $154 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $182 Roundtrip, found 21 hours ago
CA $182
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $182 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $197 Roundtrip, found 21 hours ago
CA $197
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $197 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $207 Roundtrip, found 21 hours ago
CA $207
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $207 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $224 Roundtrip, found 21 hours ago
CA $224
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $224 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $239 Roundtrip, found 21 hours ago
CA $239
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $239 found 21 hours ago
Mon, Jan 26 - Tue, Feb 3
SEA
Seattle
PSC
Pasco
CA $248 Roundtrip, found 21 hours ago
CA $248
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Jan 26 from Seattle to Pasco, returning Tue, Feb 3, priced at CA $248 found 21 hours ago
Thu, Dec 18 - Sun, Dec 21
SEA
Seattle
PSC
Pasco
CA $455 Roundtrip, found 1 day ago
CA $455
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Seattle to Pasco, returning Sun, Dec 21, priced at CA $455 found 1 day ago
Thu, Dec 18 - Sun, Dec 21
SEA
Seattle
PSC
Pasco
CA $455 Roundtrip, found 1 day ago
CA $455
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Seattle to Pasco, returning Sun, Dec 21, priced at CA $455 found 1 day ago

Frequently asked questions

Are there direct flights from Seattle - Tacoma Intl. Airport (SEA) to PSC?
Alaska Airlines and Delta are some of the airlines that operate nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport (PSC). If you're itching to get to your destination without a stopover, these are your best options.
What airlines fly from SEA to PSC?
You'll find a number of airlines that have direct flights between Seattle and Franklin County. Alaska Airlines (AS) is one of the most liked. This air carrier operates roughly 178 flights each month. You'll want to also look up the deals available through Delta (DL). Another leading carrier, it operates 91 flights monthly on the Seattle to Franklin County route. Compare the two airlines to pick up the best fare.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!

Popular Flight Routes from Pasco (PSC)

Travelers at PSC love to visit these top cities. Roam to the top destinations from Pasco(PSC) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.