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Cheap flights from Washington, D.C. Dulles Intl Airport to Belfast from £309

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
25 Nov — 2 Dec1
1 adult

Find flights from Dulles Intl to Belfast within your budget

Customise your flight search to find flights from Dulles Intl 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 953,013 searches. Data last updated 20 November 2024.

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Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 10/3

19:10-13:45

2 stops14h 35m

Belfast Intl

Tue 18/3

06:00-18:00

2 stops16h 00m

£479

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 6/12

21:55-14:15

1 stop11h 20m

Belfast City

Thu 12/12

09:00-15:35

1 stop11h 35m

£489

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 9/12

20:00-16:15

2 stops15h 15m

Belfast City

Mon 16/12

11:30-19:45

1 stop13h 15m

£492

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 6/12

17:35-21:00

1 stop22h 25m

Belfast City

Sat 14/12

17:20-15:45

1 stop27h 25m

£517

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 7/1

19:40-14:55

2 stops14h 15m

Belfast City

Tue 14/1

08:40-18:25

2 stops14h 45m

£640

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 15/3

18:10-14:15

2 stops16h 05m

Belfast City

Sat 22/3

15:05-16:40

2 stops29h 35m

£643

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 8/12

19:09-16:50

2 stops16h 41m

Belfast City

Sat 14/12

17:20-15:45

1 stop27h 25m

£675

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 20/1

16:58-16:50

2 stops18h 52m

Belfast City

Sat 25/1

06:30-00:18

2 stops22h 48m

£800

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/12

21:55-14:15

1 stop11h 20m

£309

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 15/5

18:50-09:55

2 stops34h 05m

£309

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 13 results
1
2

Cheap flight deals from Dulles Intl to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Belfast (BF1). 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 20 November 2024.

Round-trip from

£479

One-way from

£309

Popular in

June

Cheapest in

October
10/3-18/3
  • 10/3-18/3
  • 4 total stops
  • 30h 35m total
  • Washington, D.C. to Belfast
Search Deals
British Airways
  • British Airways
  • 11/12
  • 1 total stop
  • 11h 20m total
  • Washington, D.C. to Belfast
Search Deals
High demand for flights, 35% potential price rise
Search Deals
Best time to find cheap flights, 30% potential price drop
Search Deals

Find flight deals from Dulles Intl to Belfast

Cheapest flights from Dulles Intl to Belfast
Explore the most affordable flight options available from Dulles Intl to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Fri 6/1221:55IAD - BHD
1 stop11h 20mBritish Airways
Tue 10/1211:30BHD - IAD
1 stop13h 15mBritish Airways
Deal found 19/11£489
Fri 6/1217:35IAD - BHD
1 stop22h 25mDelta
Sat 14/1217:20BHD - IAD
1 stop27h 25mDelta
Deal found 19/11£517
Sun 29/1217:10IAD - BHD
2 stops16h 25mAer Lingus
Wed 8/119:25BHD - IAD
2 stops25h 15mAer Lingus
Deal found 20/11£662
Sun 8/1219:09IAD - BHD
2 stops16h 41mKLM
Sat 14/1217:20BHD - IAD
1 stop27h 25mKLM
Deal found 19/11£675
Sun 24/1118:30IAD - BHD
2 stops17h 20mMultiple Airlines
Sat 7/1206:30BHD - IAD
2 stops16h 04mMultiple Airlines
Deal found 19/11£698
Sun 24/1121:55IAD - BFS
1 stop30h 10mMultiple Airlines
Sat 7/1206:00BFS - IAD
2 stops39h 56mMultiple Airlines
Deal found 19/11£707
Tue 10/1221:55IAD - BHD
1 stop10h 40mAmerican Airlines
Wed 11/1215:40BHD - IAD
1 stop28h 55mAmerican Airlines
Deal found 19/11£910
Sat 23/1121:55IAD - BHD
1 stop16h 45mIberia
Mon 25/1109:10BHD - IAD
1 stop11h 25mIberia
Deal found 19/11£1,322

Best time to book a flight from Dulles Intl to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Dulles Intl with our price prediction graph.
Estimated return 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.

Travel insights for flights from Dulles Intl to Belfast

Get recent, data-driven insights about flights from Dulles Intl to Belfast including ideal travel times, pricing trends, and more.

Rainfall in Belfast by month

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

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

Temperature in Belfast by month

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

If weather is an important factor for your trip to Belfast, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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. Reviews last updated 20 November 2024.
Delta
8.0
Very Good
8,758 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

Delta
8.0
Very Good
8,758 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

Air France
7.4
Good
1,525 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 10

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
8,758 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 10

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. 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 round-trip?

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Belfast is British Airways. Our recent data shows that you can find tickets from as low as £489 on this airline. Additional options worth looking into are American Airlines and Delta, starting at £492 and £517 round-trip. Users have found that British Airways is 24% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Belfast one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £309. Users have also found prices from £372 and £1,134 on Delta and Air France, respectively.

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

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

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

    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.

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Belfast?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belfast (average of £67). Flying from Washington, D.C. Dulles Intl Airport to Belfast in August is currently the most expensive (average of £90). 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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Complete your trip

Complete your trip to Belfast by adding a car hire and/or hotel booking to your travel itinerary.
Belfast car hire
Belfast Intl Airport car hire
Londonderry Eglinton Airport car hire
Isle of Islay Glenegedale Airport car hire
Londonderry car hire

Fly with Cheapflights

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How does Cheapflights help users find flights from Dulles Intl to Belfast?

Deals for Dulles Intl to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Belfast?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dulles Intl to Belfast.

Can Cheapflights find flights from Dulles Intl to Belfast with no change fees?

Need flexible booking options for your flight to Belfast from Dulles Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dulles Intl to Belfast become cheaper?

Not ready to book yet? You can track prices for flights from Dulles Intl to Belfast on Cheapflights with our Price Alert feature and get notified when better prices are available.

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