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$645+ Cheap flights from Dulles Intl (IAD) to Belfast

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
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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 diciembre 18, 2024.

Round-trip from

$645
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$1,074
From Washington, D.C. Dulles Intl to Belfast
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High demand for flights, 12% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Dulles Intl to Belfast

Best flights from Dulles Intl to Belfast
Discover carefully curated flight deals from Dulles Intl to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 18, 2024.

This Trip.com deal was found by Cheapflights users on 12/17. 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.
mar. 3/45:30 pmIAD - BFS
2 stops18h 30mMultiple Airlines
dom. 3/911:00 amBFS - IAD
2 stops31h 00mMultiple Airlines
Deal found 12/17$645
This oojo deal was found by Cheapflights users on 12/18. 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.
jue. 3/1310:55 pmIAD - BHD
1 stop11h 05mBritish Airways
lun. 3/177:30 pmBHD - IAD
1 stop29h 15mBritish Airways
Deal found 12/18$647
This Travelocity deal was found by Cheapflights users on 12/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/46:00 pmIAD - BHD
1 stop11h 30mIberia
dom. 3/99:10 amBHD - IAD
1 stop11h 25mIberia
Deal found 12/17$650
This American Airlines deal was found by Cheapflights users on 12/16. 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.
mar. 1/219:55 pmIAD - BHD
1 stop13h 50mAmerican Airlines
lun. 1/279:10 amBHD - IAD
1 stop11h 25mAmerican Airlines
Deal found 12/16$652
This Delta deal was found by Cheapflights users on 12/18. 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.
jue. 3/137:59 pmIAD - BHD
2 stops21h 01mDelta
lun. 3/176:30 amBHD - IAD
1 stop14h 15mDelta
Deal found 12/18$690
This Mytrip deal was found by Cheapflights users on 12/16. 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.
mar. 1/217:40 pmIAD - BHD
2 stops19h 50mMultiple Airlines
lun. 1/277:25 amBHD - IAD
2 stops16h 00mMultiple Airlines
Deal found 12/16$703

Find flights from Dulles Intl to Belfast within your budget

Customize 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 2,558,603 searches. Data last updated diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

mar. 3/4

5:30 pm-5:00 pm

2 stops18h 30m

Belfast Intl

dom. 3/9

11:00 am-2:00 pm

2 stops31h 00m

$645

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 3/13

10:55 pm-2:00 pm

1 stop11h 05m

Belfast City

lun. 3/17

7:30 pm-8:45 pm

1 stop29h 15m

$647

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 3/4

6:00 pm-10:30 am

1 stop11h 30m

Belfast City

dom. 3/9

9:10 am-4:35 pm

1 stop11h 25m

$650

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 1/21

9:55 pm-4:45 pm

1 stop13h 50m

Belfast City

lun. 1/27

9:10 am-3:35 pm

1 stop11h 25m

$652

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 1/17

5:35 pm-4:50 pm

1 stop18h 15m

Belfast City

mié. 1/22

6:30 am-3:45 pm

1 stop14h 15m

$686

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

jue. 3/13

7:59 pm-9:00 pm

2 stops21h 01m

Belfast City

lun. 3/17

6:30 am-4:45 pm

1 stop14h 15m

$690

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 5/19

5:25 pm-9:20 pm

1 stop22h 55m

Belfast City

lun. 6/2

5:20 pm-3:35 pm

1 stop27h 15m

$787

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 5/19

8:40 pm-5:25 pm

2 stops15h 45m

Belfast City

lun. 6/2

7:00 am-7:10 pm

2 stops17h 10m

$1,016

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 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.

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 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 when rainfall is around 2.0 in.

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 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

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 diciembre 18, 2024.
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

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
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

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
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

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

Iberia
7.0
Good
2,656 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

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

British Airways
6.6
Okay
6,820 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

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?

    Flying on British Airways is currently your cheapest option to Belfast, with prices starting at $647. Additional round-trip tickets that might be worth considering are offered by Iberia and American Airlines, with the lowest prices starting at $650 and $652, respectively. British Airways is priced at 24% 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 that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Belfast flights, Cheapflights offers vacation 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belfast (average of $657). Flying from Washington, D.C. Dulles Intl Airport to Belfast in June is currently the most expensive (average of $1,189). 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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Top airline flying from Dulles Intl to Belfast

Discover the top airline that operate flights from Dulles Intl to Belfast. 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 diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$557Average$804FlexibilityNo cancel feeOn-time70%
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