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Belfast City

$339+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
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 June 30, 2025.

Round-trip from

$622
(Justfly.com)

One-way from

$339
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,047
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. 23% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 30, 2025.

This Justfly.com deal was found by Cheapflights users on 6/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:50 pmIAD - BHD
1 stop13h 25mBritish Airways
Sun 9/2811:00 amBHD - IAD
1 stop14h 15mBritish Airways
Deal found 6/27$622
This Virgin Atlantic deal was found by Cheapflights users on 6/27. 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 11/125:35 pmIAD - BHD
1 stop18h 15mVirgin Atlantic
Sun 11/165:20 pmBHD - IAD
1 stop27h 25mVirgin Atlantic
Deal found 6/27$709
This Delta deal was found by Cheapflights users on 6/29. 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 11/125:35 pmIAD - BHD
1 stop22h 25mDelta
Sun 11/165:20 pmBHD - IAD
1 stop27h 25mDelta
Deal found 6/29$710
This Orbitz deal was found by Cheapflights users on 6/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:35 pmIAD - BHD
2 stops19h 40mIberia
Sun 9/286:50 amBHD - IAD
2 stops37h 10mIberia
Deal found 6/27$858
This Cheapflightsfares deal was found by Cheapflights users on 6/28. 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.
Mon 8/185:20 pmIAD - BHD
2 stops14h 30mAer Lingus
Fri 8/226:50 amBHD - IAD
2 stops17h 05mAer Lingus
Deal found 6/28$891
This KLM deal was found by Cheapflights users on 6/29. 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 7/185:25 pmIAD - BHD
1 stop22h 50mKLM
Sun 7/276:30 amBHD - IAD
1 stop14h 05mKLM
Deal found 6/29$1,051
This Mytrip deal was found by Cheapflights users on 6/28. 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 8/188:30 pmIAD - BHD
3 stops32h 15mMultiple Airlines
Fri 8/226:40 pmBHD - IAD
3 stops32h 30mMultiple Airlines
Deal found 6/28$1,105

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 June 30, 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

Sat 9/20

5:50 pm-12:15 pm

1 stop13h 25m

Belfast City

Sun 9/28

11:00 am-8:15 pm

1 stop14h 15m

$622

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/20

4:35 pm-5:15 pm

2 stops19h 40m

Belfast City

Sun 9/28

6:50 am-3:00 pm

2 stops37h 10m

$858

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 8/18

5:20 pm-12:50 pm

2 stops14h 30m

Belfast City

Fri 8/22

6:50 am-6:55 pm

2 stops17h 05m

$891

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 7/18

5:25 pm-9:15 pm

1 stop22h 50m

Belfast City

Sun 7/27

6:30 am-3:35 pm

1 stop14h 05m

$1,051

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 8/18

8:30 pm-9:45 am

3 stops32h 15m

Belfast City

Fri 8/22

6:40 pm-10:10 pm

3 stops32h 30m

$1,105

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 7/14

1:36 pm-11:40 am

3 stops41h 04m

$339

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 7/14

10:40 pm-3:40 pm

1 stop12h 00m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 June 30, 2025.
Read reviews from past customers who have flown KLM, Aer Lingus, and Iberia 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.
KLM
7.8
Good
1,366 reviews

Overall

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,366 reviews
KLM
7.8
Good
1,366 reviews

Overall

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.1
Good
1,140 reviews
KLM
7.8
Good
1,366 reviews

Overall

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Iberia
7.0
Good
2,811 reviews
KLM
7.8
Good
1,366 reviews

Overall

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.6
Okay
7,081 reviews
KLM
7.8
Good
1,366 reviews

Overall

7.8

Food

7.2

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Belfast City Airport round-trip?

    Currently priced at $622, 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. Search Cheapflights for deals from Iberia and Aer Lingus - these airlines can fly you to your destination from $858 and $891, respectively. 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl 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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Reagan-National to Belfast City flights

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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$578Average$813FlexibilityNo cancel feeOn-time70%

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