Cheap flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport from £579

BFS — IAD
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Dulles Intl

Sat 5/1215:25 -
3 stops34h 10m
Wed 9/1219:40 -
2 stops21h 40m
Deal found 7/11£579
Fri 4/1206:00 -
2 stops18h 05m
Tue 8/1219:40 -
2 stops20h 15m
Deal found 5/11£601
Mon 21/1206:10 -
2 stops17h 20m
Mon 28/1219:40 -
2 stops20h 35m
Deal found 6/11£678

Find flight deals from Belfast Intl to Dulles Intl

Round-trip from

£579
5/12-9/12
  • 5/12-9/12
  • 5 total stops
  • 55h 50m total
  • Belfast to Washington, D.C.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Belfast Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Sat 5/12

15:25-20:35

3 stops34h 10m

Washington, D.C. Dulles Intl

Wed 9/12

19:40-22:20

2 stops21h 40m

£579

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Fri 4/12

06:00-19:05

2 stops18h 05m

Washington, D.C. Dulles Intl

Tue 8/12

19:40-20:55

2 stops20h 15m

£601
Fastest return journey

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Mon 21/12

06:10-18:30

2 stops17h 20m

Washington, D.C. Dulles Intl

Mon 28/12

19:40-21:15

2 stops20h 35m

£678

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Sorted by cheapest first

Best time to book a flight from Belfast Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Belfast Intl with our price prediction graph.
Estimated return price

Related info for your journey

  • Can I find deals for flights from Belfast Intl to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Dulles Intl.

  • Can I find deals for business class flights from Belfast Intl to Dulles Intl?

    Yes. Cheapflights offers flight deals from Belfast Intl to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield
Sterling

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Belfast Intl to Dulles Intl

Fly with Cheapflights

How does Cheapflights help users find flights from Belfast Intl to Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Belfast Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Dulles Intl?

Cheapflights helps you find that perfect flight to Dulles Intl from Belfast Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Belfast Intl to Dulles Intl with no change fees?

Need flexible booking options for your flight to Dulles Intl from Belfast Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Belfast Intl to Dulles Intl become cheaper?

Of course! You can now track prices for flights from Belfast Intl to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.