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Belfast City

$350+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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Cheap 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 December 2, 2025.

This KLM deal was found by Cheapflights users on 11/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:05 pmIAD - BHD
1 stop21h 55mKLM
Thu 12/116:30 amBHD - IAD
1 stop14h 35mKLM
Deal found 11/30$654
This Delta deal was found by Cheapflights users on 11/30. 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.
Mon 12/15:59 pmIAD - BHD
2 stops22h 01mDelta
Mon 12/86:30 amBHD - IAD
1 stop14h 35mDelta
Deal found 11/30$658
This Air France deal was found by Cheapflights users on 11/30. 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.
Fri 12/56:05 pmIAD - BHD
1 stop17h 45mMultiple Airlines
Fri 12/126:30 amBHD - IAD
2 stops14h 53mMultiple Airlines
Deal found 11/30$831
This Cheapflightsfares deal was found by Cheapflights users on 11/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:20 pmIAD - BHD
1 stop9h 50mBritish Airways
Thu 12/1110:40 amBHD - IAD
1 stop14h 15mBritish Airways
Deal found 11/30$920
This Ovago deal was found by Cheapflights users on 11/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:05 pmIAD - BHD
2 stops14h 45mAer Lingus
Wed 12/1010:20 amBHD - IAD
2 stops14h 10mAer Lingus
Deal found 11/30$921
This British Airways deal was found by Cheapflights users on 11/30. 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.
Sat 12/66:20 pmIAD - BHD
1 stop9h 50mBritish Airways
Wed 12/106:35 amBHD - IAD
1 stop14h 00mBritish Airways
Deal found 11/30$967
This Air France deal was found by Cheapflights users on 11/30. 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.
Sun 12/76:05 pmIAD - BHD
1 stop17h 45mMultiple Airlines
Thu 12/116:30 amBHD - IAD
1 stop14h 35mMultiple Airlines
Deal found 11/30$987
This KLM deal was found by Cheapflights users on 11/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:35 pmIAD - BHD
2 stops16h 15mKLM
Thu 12/116:30 amBHD - IAD
1 stop14h 35mKLM
Deal found 11/30$991

Find 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 December 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$549
(oojo)

One-way from

$350
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$691
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Belfast City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Belfast City flights.
Search Deals
From Washington, D.C. Dulles Intl to Belfast City
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Belfast City
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($196 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 2, 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

Sun 3/1

6:20 pm-1:55 pm

1 stop14h 35m

Belfast City

Mon 3/9

2:40 pm-4:35 pm

1 stop29h 55m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/2

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Tue 3/10

11:25 am-8:55 pm

1 stop13h 30m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 3/3

9:45 pm-2:50 pm

1 stop12h 05m

Belfast City

Wed 3/11

9:15 am-4:35 pm

1 stop11h 20m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 3/3

6:20 pm-10:30 am

1 stop11h 10m

Belfast City

Tue 3/10

10:00 am-8:55 pm

1 stop14h 55m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/2

6:20 pm-10:40 am

1 stop11h 20m

Belfast City

Wed 3/11

9:15 am-4:35 pm

1 stop11h 20m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Mon 3/9

7:25 pm-4:35 pm

1 stop25h 10m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 3/4

9:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Wed 3/11

11:25 am-8:55 pm

1 stop13h 30m

$572

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 3/1

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

Sun 3/8

6:30 am-3:35 pm

1 stop14h 05m

$584

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 3/16

7:20 pm-10:40 am

1 stop11h 20m

Belfast City

Sun 3/22

5:35 pm-4:35 pm

1 stop27h 00m

$584

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 3/5

6:20 pm-10:20 am

1 stop11h 00m

Belfast City

Thu 3/12

10:40 am-8:55 pm

1 stop14h 15m

$584

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 12 results
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Compare providers for flights from Dulles Intl to Belfast City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Belfast City in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Belfast City Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Belfast City Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Belfast City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Belfast City Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Belfast City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 2, 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
7,550 reviews

Food

6.4

Entertainment

6.4

Crew

7.6

Comfort

6.7

Boarding

6.9

Overall

6.7

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
7,550 reviews
British Airways
6.7
Okay
7,550 reviews

Food

6.4

Entertainment

6.4

Crew

7.6

Comfort

6.7

Boarding

6.9

Overall

6.7

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 14h 35m. The distance from Washington, D.C. Dulles Intl Airport to Belfast City Airport is about 3390 mi.

  • 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.

  • 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
Newcastle

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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 December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$620Average$834FlexibilityNo cancel feeOn-time70%

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