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$630+ Cheap flights from District of Columbia to Belfast

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from District of Columbia to Belfast

Keep the following information in mind while searching for District of Columbia to Belfast flight deals. Data was last updated September 15, 2025.

Round-trip from

$630
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$647
From District of Columbia to Belfast
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from District of Columbia to Belfast

Cheapest flights from District of Columbia to Belfast
Explore the most affordable flight options available from District of Columbia to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:45 pmIAD - BHD
1 stop14h 30mAmerican Airlines
Fri 10/1011:55 amBHD - IAD
1 stop13h 20mAmerican Airlines
Deal found 9/15$630
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:45 pmIAD - BFS
3 stops25h 00mMultiple Airlines
Mon 10/209:00 pmBFS - IAD
3 stops47h 20mMultiple Airlines
Deal found 9/15$645
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:45 pmDCA - BHD
2 stops17h 30mAmerican Airlines
Fri 10/106:35 amBHD - DCA
2 stops16h 21mAmerican Airlines
Deal found 9/15$645
This Air France deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:25 pmIAD - BHD
1 stop18h 30mMultiple Airlines
Mon 10/205:25 pmBHD - IAD
1 stop27h 10mMultiple Airlines
Deal found 9/15$708
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:11 pmIAD - BHD
2 stops27h 49mDelta
Sun 11/165:20 pmBHD - IAD
1 stop27h 45mDelta
Deal found 9/14$712
This FlightHub deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1312:19 pmDCA - BHD
2 stops19h 36mBritish Airways
Mon 10/206:40 amBHD - DCA
2 stops18h 36mBritish Airways
Deal found 9/15$721
This Virgin Atlantic deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:03 pmDCA - BHD
2 stops18h 47mVirgin Atlantic
Sun 11/166:30 amBHD - DCA
2 stops18h 23mVirgin Atlantic
Deal found 9/14$722
This British Airways deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:20 pmIAD - BHD
1 stop9h 50mBritish Airways
Sun 11/1610:40 amBHD - IAD
1 stop14h 15mBritish Airways
Deal found 9/14$747
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/298:40 pmIAD - BFS
2 stops20h 00mMultiple Airlines
Wed 11/57:20 amBFS - IAD
2 stops16h 10mMultiple Airlines
Deal found 9/14$747
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:30 pmIAD - BFS
3 stops23h 00mMultiple Airlines
Tue 11/47:05 amBFS - IAD
3 stops42h 55mMultiple Airlines
Deal found 9/13$750
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:30 pmIAD - BFS
3 stops19h 05mMultiple Airlines
Thu 11/68:15 amBFS - IAD
3 stops41h 45mMultiple Airlines
Deal found 9/15$769
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:40 amDCA - BFS
3 stops23h 55mMultiple Airlines
Wed 11/56:00 amBFS - DCA
3 stops20h 56mMultiple Airlines
Deal found 9/14$785

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from District of Columbia to Belfast that are best for you.

Fly from

District of Columbia

Fly to

Belfast

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 10/3

10:45 pm-6:15 pm

1 stop14h 30m

Belfast City

Fri 10/10

11:55 am-8:15 pm

1 stop13h 20m

$630

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 10/13

5:45 pm-11:45 pm

3 stops25h 00m

Belfast Intl

Mon 10/20

9:00 pm-3:20 pm

3 stops47h 20m

$645

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 10/3

7:45 pm-6:15 pm

2 stops17h 30m

Belfast City

Fri 10/10

6:35 am-5:56 pm

2 stops16h 21m

$645

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 10/13

5:25 pm-4:55 pm

1 stop18h 30m

Belfast City

Mon 10/20

5:25 pm-3:35 pm

1 stop27h 10m

$708

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

12:11 pm-9:00 pm

2 stops27h 49m

Belfast City

Sun 11/16

5:20 pm-4:05 pm

1 stop27h 45m

$712

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

12:11 pm-4:50 pm

2 stops23h 39m

Belfast City

Sun 11/16

5:20 pm-4:05 pm

1 stop27h 45m

$712

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 10/13

7:35 pm-4:55 pm

2 stops16h 20m

Belfast City

Mon 10/20

6:30 am-3:35 pm

1 stop14h 05m

$712

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 10/13

12:19 pm-12:55 pm

2 stops19h 36m

Belfast City

Mon 10/20

6:40 am-8:16 pm

2 stops18h 36m

$721

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 11/12

2:59 pm-4:50 pm

2 stops20h 51m

Belfast City

Sun 11/16

6:30 am-5:00 pm

2 stops15h 30m

$722

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Wed 11/12

4:50 pm-4:50 pm

2 stops19h 00m

Belfast City

Sun 11/16

6:30 am-7:53 pm

2 stops18h 23m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 31 results
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Best time to book a flight from District of Columbia to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Belfast
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from District of Columbia to Belfast?

    For as low as $630, American Airlines can have you in Belfast from District of Columbia in 14h 30m. Airlines will cover a distance of 3390 mi. This flight may include one or multiple stops.

  • What are the most popular routes from District of Columbia to Belfast?

    Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Reagan-National - Belfast Intl or Washington, D.C. Dulles Intl - Belfast City when deciding on the best route from District of Columbia to Belfast.

  • Can I find deals for flights from District of Columbia to Belfast that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Belfast?

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

  • Can I find deals for business class flights from District of Columbia to Belfast?

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

  • What is the cheapest month to book a flight from District of Columbia to Belfast?

    Currently, February is the cheapest month in which you can book a flight from District of Columbia to Belfast (average of $657). Flying from District of Columbia to Belfast in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for District of Columbia to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from District of Columbia to Belfast

Discover the top airline that operate flights from District of Columbia to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$847FlexibilityNo cancel feeOn-time70%

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