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Belfast City

$309+ Cheap flights from Dulles Intl (IAD) to Belfast City (BHD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Belfast City

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Belfast City (BHD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$665
(Ticket)

One-way from

$309
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$629
From Washington, D.C. Dulles Intl to Belfast City
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One-way flight from Washington, D.C. Dulles Intl to Belfast City
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Highest demand for flights based on searches. 32% potential increase in price ($377 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Belfast City

Cheapest flights from Dulles Intl to Belfast City
Explore the most affordable flight options available from Dulles Intl to Belfast City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Ticket deal was found by Cheapflights users on 9/11. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:25 pmIAD - BHD
1 stop18h 30mVirgin Atlantic
Thu 10/95:25 pmBHD - IAD
1 stop27h 10mVirgin Atlantic
Deal found 9/11$665
This Ticket deal was found by Cheapflights users on 9/11. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:17 pmIAD - BHD
2 stops15h 38mKLM
Thu 10/96:30 amBHD - IAD
1 stop14h 05mKLM
Deal found 9/11$693
This Delta deal was found by Cheapflights users on 9/10. 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 11/125:03 pmIAD - BHD
2 stops22h 57mDelta
Sun 11/165:20 pmBHD - IAD
1 stop27h 45mDelta
Deal found 9/10$712
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:45 pmIAD - BHD
1 stop17h 00mBritish Airways
Tue 10/148:20 pmBHD - IAD
1 stop28h 55mBritish Airways
Deal found 9/9$734
This British Airways deal was found by Cheapflights users on 9/9. 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 stop10h 55mBritish Airways
Sun 11/1610:40 amBHD - IAD
1 stop14h 15mBritish Airways
Deal found 9/9$747
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/105:25 pmIAD - BHD
1 stop22h 50mDelta
Tue 10/146:30 amBHD - IAD
2 stops21h 30mDelta
Deal found 9/9$793
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/108:25 pmIAD - BHD
2 stops14h 05mAmerican Airlines
Tue 10/149:35 amBHD - IAD
2 stops14h 55mAmerican Airlines
Deal found 9/9$855
This Mytrip deal was found by Cheapflights users on 9/9. 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.
Fri 10/1011:15 pmIAD - BHD
3 stops33h 05mMultiple Airlines
Tue 10/146:00 pmBHD - IAD
3 stops30h 20mMultiple Airlines
Deal found 9/9$1,032

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Belfast City 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 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Belfast City Airport that are best for you.

Fly from

Dulles Intl

Fly to

Belfast City

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 9/26

5:25 pm-4:55 pm

1 stop18h 30m

Belfast City

Thu 10/9

5:25 pm-3:35 pm

1 stop27h 10m

$665

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 9/26

8:17 pm-4:55 pm

2 stops15h 38m

Belfast City

Thu 10/9

6:30 am-3:35 pm

1 stop14h 05m

$693

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

6:05 pm-4:50 pm

1 stop17h 45m

Belfast City

Sun 11/16

6:30 am-4:05 pm

1 stop14h 35m

$708

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

11:05 am-9:00 pm

2 stops28h 55m

Belfast City

Sun 11/16

6:30 am-4:05 pm

1 stop14h 35m

$712

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 10/10

10:45 pm-8:45 pm

1 stop17h 00m

Belfast City

Tue 10/14

8:20 pm-8:15 pm

1 stop28h 55m

$734

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

6:20 pm-10:15 am

1 stop10h 55m

Belfast City

Sun 11/16

10:40 am-7:55 pm

1 stop14h 15m

$747

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 10/17

10:20 pm-9:20 am

2 stops54h 00m

$309

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 10/17

10:45 pm-6:15 pm

1 stop14h 30m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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

Have a flexible travel schedule? Discover the best time to fly to Belfast City from Dulles Intl 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.

Reviews of airlines servicing Belfast City

Get insights into the airlines that provide service to Belfast City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast City. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown British Airways from Washington, D.C. Dulles Intl Airport to Belfast City Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,361 reviews

Entertainment

6.4

Food

6.3

Boarding

6.9

Comfort

6.7

Overall

6.7

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,361 reviews
British Airways
6.7
Okay
7,361 reviews

Entertainment

6.4

Food

6.3

Boarding

6.9

Comfort

6.7

Overall

6.7

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Belfast City. 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 Washington, D.C. Dulles Intl Airport to Belfast City Airport?

    Departing from Washington, D.C. Dulles Intl Airport to Belfast City Airport will take you 15h 38m. The distance from Washington, D.C. Dulles Intl Airport to Belfast City Airport is about 3390 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Belfast City Airport round-trip?

    Currently priced at $620, British Airways will fly you from Washington, D.C. Dulles Intl Airport to Belfast City Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is priced at 20% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Belfast City Airport?

Book flights to Belfast City Airport if you plan to visit one of these locations
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Alternative routes for Dulles Intl to Belfast City

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dulles Intl to Belfast City

Discover the top airline that operate flights from Dulles Intl to Belfast City. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$834FlexibilityNo cancel feeOn-time70%

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