CA $394 Cheap Flights from Pasco (PSC) to Washington (IAD)

View CA $394 flight on Tue, Aug. 19, 2025Opens in a new window

Popular airlines from Tri-Cities Airport (PSC) to Washington Dulles International Airport (IAD)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Pasco (PSC) to Washington (IAD)

Prices were available within the past 7 days and start at CA $394 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Pasco (PSC) to Washington (IAD)

May is typically the cheapest month to fly

From CA $434 - CA $926 per traveller.

Graph displaying average flight prices per month

Flight from Pasco to Washington (PSC - IAD) route information
Origin airport
Tri-Cities
Destination airport
Washington Dulles Intl.
Distance
3442 km

Pasco to Chantilly Flights

The easy way to book your flights from Pasco to Washington 

With Expedia, it’s simple to find and book flights to Washington from Pasco whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 11 airlines that cover this route. There are nonstop flights to Washington Dulles Intl., 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 Pasco to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Tri-Cities, PSC to Washington Dulles Intl., IAD 

Sort your search results by price to find great deals on your flight from Pasco to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Pasco 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 Washington  
  • 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 Washington from Pasco 

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 Washington with Expedia today.

Frequently asked questions

How much is a flight from Tri-Cities Airport (PSC) to Washington Dulles Intl. Airport (IAD)?
The lowest price advertised for a round-trip flight between Tri-Cities Airport (PSC) and IAD is . But you better act fast. This price is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Tri-Cities Airport to Dulles Intl. Airport?
The majority of flights can be conveniently cancelled online, but whether or not you are charged a fee all comes down to your airline. If you do need to cancel your vacation, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from PSC to Washington Dulles Intl. Airport (IAD) that have flexible change policies?
Many airlines will allow you to move your flight at no extra charge. All you pay is the fare difference. When looking for Tri-Cities Airport to IAD flights, you'll see a "No change fees" filter for you to select.
How many hours is the flight from Tri-Cities Airport to Washington Dulles Intl. Airport (IAD)?
It takes about 6 hours and 11 minutes to fly from Tri-Cities Airport (PSC) to IAD. But with some movies and a good book, the hours will pass by quicker.
How far is the flight from Tri-Cities Airport (PSC) to Dulles Intl. Airport?
The flight distance from Tri-Cities Airport (PSC) to IAD is 3,500 kilometres. Sneak in a nap or get stuck into a book and the journey will zip by.
Which airlines fly direct from PSC to Washington Dulles Intl. Airport (IAD)?
At present, no airlines offer direct flights from Tri-Cities Airport (PSC) to Dulles Intl. Airport. You'll have to book a flight with one or more stops. To score the best connections and price, lock in your fare well in advance.
Are PSC to IAD flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so there are no guarantees. While last-minute deals between Tri-Cities Airport and Washington Dulles Intl. Airport (IAD) are of course possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers advertise their prices up to a year ahead of the departure date. Expedia is continuously updating the best bargains around, so keep checking and be ready to pounce when the fares dip.

Explore a world of travel with Expedia

*Available to Expedia members.