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 $690 round trip and CA $376 one way. Prices and availability subject to change. Additional terms may apply.

Fri., Aug. 8 - Tue., Aug. 12
IAD
Washington
PSC
Pasco
CA $690 Roundtrip, found 5 days ago
CA $690
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Aug. 8 from Washington to Pasco, returning Tue., Aug. 12, priced at CA $690 found 5 days ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $692 Roundtrip, found 11 hours ago
CA $692
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $692 found 11 hours ago
Fri., Aug. 8 - Tue., Aug. 12
IAD
Washington
PSC
Pasco
CA $744 Roundtrip, found 5 days ago
CA $744
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Aug. 8 from Washington to Pasco, returning Tue., Aug. 12, priced at CA $744 found 5 days ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $753 Roundtrip, found 11 hours ago
CA $753
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $753 found 11 hours ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $783 Roundtrip, found 11 hours ago
CA $783
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $783 found 11 hours ago
Fri., Aug. 8 - Tue., Aug. 12
IAD
Washington
PSC
Pasco
CA $840 Roundtrip, found 5 days ago
CA $840
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Aug. 8 from Washington to Pasco, returning Tue., Aug. 12, priced at CA $840 found 5 days ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $843 Roundtrip, found 11 hours ago
CA $843
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $843 found 11 hours ago
Fri., Aug. 8 - Tue., Aug. 12
IAD
Washington
PSC
Pasco
CA $919 Roundtrip, found 5 days ago
CA $919
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Aug. 8 from Washington to Pasco, returning Tue., Aug. 12, priced at CA $919 found 5 days ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $932 Roundtrip, found 11 hours ago
CA $932
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $932 found 11 hours ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $935 Roundtrip, found 11 hours ago
CA $935
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $935 found 11 hours ago
Fri., Aug. 8 - Tue., Aug. 12
IAD
Washington
PSC
Pasco
CA $972 Roundtrip, found 5 days ago
CA $972
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Aug. 8 from Washington to Pasco, returning Tue., Aug. 12, priced at CA $972 found 5 days ago
Sat., Aug. 9 - Wed., Aug. 13
IAD
Washington
PSC
Pasco
CA $1,025 Roundtrip, found 11 hours ago
CA $1,025
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat., Aug. 9 from Washington to Pasco, returning Wed., Aug. 13, priced at CA $1,025 found 11 hours ago
Fri., Aug. 8 - Tue., Aug. 12
IAD
Washington
PSC
Pasco
CA $1,068 Roundtrip, found 5 days ago
CA $1,068
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Aug. 8 from Washington to Pasco, returning Tue., Aug. 12, priced at CA $1,068 found 5 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.

Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington (IAD) 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.