Title: Cheap Flights from Washington (IAD) to Pasco (PSC) - Expedia.ca ![Beautiful lake. ](https://images.trvl-media.com/place/2878/e076e0af-b611-4721-b423-65a87b93597f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Brandi Blair ![](https://images.trvl-media.com/place/2878/e076e0af-b611-4721-b423-65a87b93597f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Washington (IAD) to Pasco (PSC) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Washington Dulles International Airport (IAD) to Tri-Cities Airport (PSC) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psc,departure:02/11/2025TANYT&leg2=from:psc,to:iad,departure:09/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psc,departure:02/11/2025TANYT&leg2=from:psc,to:iad,departure:09/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psc,departure:02/11/2025TANYT&leg2=from:psc,to:iad,departure:09/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psc,departure:02/11/2025TANYT&leg2=from:psc,to:iad,departure:09/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:psc,departure:02/11/2025TANYT&leg2=from:psc,to:iad,departure:09/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Washington to Pasco (IAD - PSC) route information | Origin airport | Washington Dulles Intl. | | --- | --- | | Destination airport | Tri-Cities | | Distance | 3442 km | ## Chantilly to Pasco Flights **The easy way to book your flights from Washington to Pasco**  With Expedia, it’s simple to find and book flights to Pasco from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Tri-Cities, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Pasco today, tomorrow, or this week.   **Save dollars with cheap flights from Washington Dulles Intl., IAD to Tri-Cities, PSC**  Sort your search results by price to find great deals on your flight from Washington to Pasco—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Pasco from Washington currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Pasco   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Pasco from Washington**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Pasco with Expedia today. ## Frequently asked questions ### How much is a flight from Dulles Intl. Airport to Tri-Cities Airport? > Round-trip journeys from IAD to Tri-Cities Airport start from . This is based on fares available within the last 7 days on Expedia for flights departing within the next year — book now so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Tri-Cities Airport? > When it comes to cancellation fees, every airline has different terms and conditions. If you decide to cancel your vacation, head to our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Dulles Intl. Airport to Tri-Cities Airport (PSC) that have flexible change policies? > Flights from Washington Dulles Intl. Airport (IAD) to Tri-Cities Airport offering flexible change policies are available from several carriers. Simply use our "No change fees" filter while searching. You'll only need to cover the cost difference between the two flights, with no added fees to worry about. ### How many hours is the flight from Washington Dulles Intl. Airport (IAD) to Tri-Cities Airport? > There are lots of ways to make the 7 hours and 7 minutes between IAD and Tri-Cities Airport go by faster. Be productive and organize your camera roll or clear out all those backed-up emails. A nice snooze also helps pass the time! ### How far is the flight from Dulles Intl. Airport to Tri-Cities Airport (PSC)? > The flying distance between Dulles Intl. Airport and Tri-Cities Airport is 3,500 kilometres. Work your way through your travel song playlist or read a good book and the trip will fly by. ### Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Tri-Cities Airport (PSC)? > Currently, no airlines offer direct flights from Dulles Intl. Airport to PSC. You'll have to book a flight with at least one stop. To get the best price and connections, lock in your fare ahead of time. ### Are Dulles Intl. Airport to PSC flight tickets cheaper when they're purchased at the last minute? > Flight prices are constantly going up and down, so not always. While last-minute flight deals between IAD and Tri-Cities Airport are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some airlines announce their prices up to a year ahead of the departure date. 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