Cheap Flights From Washington Dulles Intl. (IAD) To Tri-Cities (PSC)

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Cheapest Flights from Washington (IAD) to Pasco (PSC)

The cheapest flights to Tri-Cities found within the past 7 days were CA $621 round trip and one way. Prices and availability subject to change. Additional terms may apply.

Tue., 4 Feb. - Tue., 18 Feb.
IAD
Washington
PSC
Pasco
CA $621 Roundtrip, found 6 days ago
CA $621
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue., 4 Feb. from Washington to Pasco, returning Tue., 18 Feb., priced at CA $621 found 6 days ago
Tue., 4 Feb. - Wed., 19 Feb.
IAD
Washington
PSC
Pasco
CA $700 Roundtrip, found 6 days ago
CA $700
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue., 4 Feb. from Washington to Pasco, returning Wed., 19 Feb., priced at CA $700 found 6 days ago
Tue., 4 Feb. - Wed., 19 Feb.
IAD
Washington
PSC
Pasco
CA $743 Roundtrip, found 6 days ago
CA $743
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue., 4 Feb. from Washington to Pasco, returning Wed., 19 Feb., priced at CA $743 found 6 days ago

Frequently asked questions

Are there direct flights from IAD to PSC?
United Airlines, Delta and Alaska Airlines will fly you to Franklin County from Sterling with just one stopover. Unfortunately, there are no direct flights between Dulles Intl. Airport and PSC as yet.
What airlines fly from Dulles Intl. Airport to Tri-Cities Airport?
As there are no direct flights on offer between Washington Dulles Intl. Airport (IAD) and Tri-Cities Airport (PSC), at least one stopover will be unavoidable. You will be better off planning ahead if you want to find the quickest route and save time.
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.
*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.