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$427+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
abr. 27 — may. 41
dom. 4/27
dom. 5/4
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 abril 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$665
(American Airlines)

One-way from

$427
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$727
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Belfast City flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Belfast City flights.
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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. 22% potential increase in price ($223 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 April 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 abril 22, 2025.

This American Airlines deal was found by Cheapflights users on 4/21. 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.
jue. 8/1410:40 pmIAD - BHD
1 stop11h 50mAmerican Airlines
mar. 8/266:35 amBHD - IAD
1 stop18h 35mAmerican Airlines
Deal found 4/21$665
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/65:50 pmIAD - BHD
1 stop11h 20mBritish Airways
sáb. 12/203:05 pmBHD - IAD
1 stop33h 40mBritish Airways
Deal found 4/21$671
This Virgin Atlantic deal was found by Cheapflights users on 4/22. 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.
jue. 4/245:25 pmIAD - BHD
1 stop18h 30mVirgin Atlantic
mié. 5/76:30 amBHD - IAD
1 stop14h 05mVirgin Atlantic
Deal found 4/22$703
This Delta deal was found by Cheapflights users on 4/22. 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.
mar. 9/23:00 pmIAD - BHD
2 stops20h 55mDelta
lun. 9/86:30 amBHD - IAD
2 stops15h 01mDelta
Deal found 4/22$718
This Trip.com deal was found by Cheapflights users on 4/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/308:40 pmIAD - BHD
2 stops12h 55mMultiple Airlines
jue. 11/67:10 amBHD - IAD
2 stops16h 10mMultiple Airlines
Deal found 4/21$795
This Gotogate deal was found by Cheapflights users on 4/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/245:20 pmIAD - BHD
2 stops14h 30mAer Lingus
mié. 5/79:50 amBHD - IAD
2 stops14h 40mAer Lingus
Deal found 4/22$911

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 abril 22, 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

jue. 8/14

10:40 pm-3:30 pm

1 stop11h 50m

Belfast City

mar. 8/26

6:35 am-8:10 pm

1 stop18h 35m

$665

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

sáb. 9/6

5:50 pm-10:10 am

1 stop11h 20m

Belfast City

sáb. 12/20

3:05 pm-7:45 pm

1 stop33h 40m

$671

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 9/2

3:00 pm-4:55 pm

2 stops20h 55m

Belfast City

lun. 9/8

6:30 am-4:31 pm

2 stops15h 01m

$718

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

sáb. 6/14

5:12 pm-9:10 pm

2 stops22h 58m

Belfast City

mar. 6/17

6:55 am-11:14 am

3 stops33h 19m

$914

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 5/21

5:20 pm-12:40 pm

2 stops14h 20m

Belfast City

mié. 5/28

6:45 pm-3:50 pm

2 stops26h 05m

$972

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 6/6

1:34 pm-9:10 pm

3 stops50h 36m

$427

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 6/17

7:25 pm-10:35 am

1 stop10h 10m

$820

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 6/19

5:25 pm-4:55 pm

1 stop18h 30m

$823

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Belfast City Airport flight deals on Cheapflights vs. FlightHub >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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Belfast City Airport

Rainfall in Belfast City by month

Plan your trip to Belfast City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast City Airport ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast City Airport when rainfall is around 2.0 in.

Temperature in Belfast City by month

Plan your trip to Belfast City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast City Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 abril 22, 2025.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,067 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,794 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $665, American Airlines will fly you from Washington, D.C. Dulles Intl Airport to Belfast City Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Delta - these airlines can fly you to your destination from $671 and $718, respectively. American Airlines is priced at 15% 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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Baltimore 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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$578Average$912FlexibilityNo cancel feeOn-time70%

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