$270+ Cheap flights from Dulles Intl (IAD) to Belfast

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
Sep 22 — Sep 291

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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 September 17, 2024.

Popular in

August

Cheapest in

October

Round-trip from

$577
(Mytrip)

One-way from

$270
(Combigo)
High demand for flights, 24% potential price rise
Best time to find cheap flights, 26% potential price drop
From Washington, D.C. Dulles Intl to Belfast
One-way flight from Washington, D.C. Dulles Intl to Belfast

Cheap Dulles Intl to Belfast flights in September & October 2024

Find cheap flight options from Dulles Intl to Belfast specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,025,540 searches. Prices were last updated on September 17, 2024.
These are some of the best deals we've found on flights to Belfast in 2024 at this time. More deals are always being added, so be sure to check back regularly.
This Travelocity deal was found by Cheapflights users on 9/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2010:45 pmIAD - BHD
1 stop14h 25mBritish Airways
Mon 9/307:30 pmBHD - IAD
1 stop30h 00mBritish Airways
Deal found 9/16$589
This KLM deal was found by Cheapflights users on 9/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/77:10 pmIAD - BHD
2 stops16h 40mKLM
Mon 10/145:20 pmBHD - IAD
1 stop27h 15mKLM
Deal found 9/17$607
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1310:50 pmIAD - BHD
1 stop10h 45mMultiple Airlines
Sat 10/197:50 pmBHD - IAD
2 stops24h 50mMultiple Airlines
Deal found 9/16$794
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Fri 9/276:30 amIAD - BFS
2 stops33h 25mMultiple Airlines
Sun 9/298:10 pmBFS - IAD
3 stops47h 35mMultiple Airlines
Deal found 9/15$1,028

Dulles Intl to Belfast 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Belfast in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,025,540 searches. Data last updated September 17, 2024.
These are some of the best deals we've found on flights to Belfast in 2024 at this time. More deals are always being added, so be sure to check back regularly.
This British Airways deal was found by Cheapflights users on 9/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/66:15 pmIAD - BHD
1 stop10h 50mBritish Airways
Sun 11/109:10 amBHD - IAD
1 stop15h 35mBritish Airways
Deal found 9/16$579
This KLM deal was found by Cheapflights users on 9/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/77:10 pmIAD - BHD
2 stops16h 40mKLM
Mon 10/145:20 pmBHD - IAD
1 stop27h 15mKLM
Deal found 9/17$607
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/612:00 pmIAD - BHD
2 stops23h 50mDelta
Sun 11/106:30 amBHD - IAD
2 stops21h 33mDelta
Deal found 9/16$632
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1310:50 pmIAD - BHD
1 stop10h 45mMultiple Airlines
Sat 10/197:50 pmBHD - IAD
2 stops24h 50mMultiple Airlines
Deal found 9/16$794
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Fri 9/276:30 amIAD - BFS
2 stops33h 25mMultiple Airlines
Sun 9/298:10 pmBFS - IAD
3 stops47h 35mMultiple Airlines
Deal found 9/15$1,028

Dulles Intl to Belfast flights leaving soon

Find last-minute flight options from Dulles Intl to Belfast for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,025,540 searches. Data last updated September 17, 2024.
Consider one of these great deals we found on last-minute flights from Washington, D.C. to Belfast. Users should examine the flight details to ensure there are no surprises.
This Travelocity deal was found by Cheapflights users on 9/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2010:45 pmIAD - BHD
1 stop14h 25mBritish Airways
Mon 9/307:30 pmBHD - IAD
1 stop30h 00mBritish Airways
Deal found 9/16$589
This KLM deal was found by Cheapflights users on 9/15. 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 9/275:25 pmIAD - BHD
1 stop18h 25mKLM
Sun 9/295:20 pmBHD - IAD
1 stop27h 05mKLM
Deal found 9/15$727
This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/206:30 amIAD - BHD
2 stops21h 45mMultiple Airlines
Mon 9/303:15 pmBHD - IAD
2 stops30h 05mMultiple Airlines
Deal found 9/16$844
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Fri 9/276:30 amIAD - BFS
2 stops33h 25mMultiple Airlines
Sun 9/298:10 pmBFS - IAD
3 stops47h 35mMultiple Airlines
Deal found 9/15$1,028

One-way flights to Belfast from Dulles Intl

Search for one-way flight options from Dulles Intl to Belfast. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,025,540 searches. Data last updated September 17, 2024.
Users traveling one-way from Washington, D.C. to Belfast can select one of these great deals. Users needing a return flight from Washington, D.C. to Belfast should utilize the search form above.
This Combigo deal was found by Cheapflights users on 9/17. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:40 pmIAD - BFS
2 stops15h 10mMultiple Airlines
Deal found 9/17$270
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:15 pmIAD - BHD
1 stop10h 50mBritish Airways
Deal found 9/16$372
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 12/111:41 pmIAD - BHD
2 stops15h 24mAmerican Airlines
Deal found 9/16$378

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 3,025,540 searches. Data last updated September 17, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$577 - $794

Route

Depart

Return

Price

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 3/2

2 stops16h 55m

Belfast Intl

Sat 3/8

2 stops26h 30m

$577

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/6

1 stop10h 50m

Belfast City

Sun 11/10

1 stop15h 35m

$579

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 10/7

2 stops16h 40m

Belfast City

Mon 10/14

1 stop27h 15m

$607

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 11/6

2 stops23h 50m

Belfast City

Sun 11/10

2 stops21h 33m

$632

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 10/13

1 stop10h 45m

Belfast City

Sat 10/19

2 stops24h 50m

$794

Flights are sorted by cheapest first

Deals found on 9/16

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 September 17, 2024.
Peruse reviews from past customers who have flown with British Airways and KLM from Washington, D.C. to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,079 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

8.0
Very good
9,079 reviews
8.0
Very good
9,079 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.8
Good
1,352 reviews
8.0
Very good
9,079 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.3
Good
10,000 reviews
8.0
Very good
9,079 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

6.7
Okay
6,807 reviews
8.0
Very good
9,079 reviews

Food

7.4

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

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.
  • Can I find flights from Washington, D.C. Dulles Intl Airport to Belfast for under $600 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Belfast for under $600. The cheapest flight booked recently is on Multiple Airlines for just $577, but on average you can expect to pay $637.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Belfast for under $600?

    There are currently 4+ open flights from Washington, D.C. Dulles Intl Airport to Belfast within the next 7 days for less than $600.

  • 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 $579. Additional round-trip tickets that might be worth considering are offered by KLM and Delta, with the lowest prices starting at $607 and $632, respectively. British Airways is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What does IAD to BFS mean?

    This is defined as Washington, D.C. Dulles Intl Airport (IAD) and Belfast Intl Airport (BFS). Codes like Belfast Intl Airport are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Belfast City Airport (BHD), Glasgow Prestwick Airport (PIK), Londonderry Eglinton Airport (LDY), Isle of Islay Glenegedale Airport (ILY), Campbeltown Machrihanish Airport (CAL).

  • Can I find deals for flights from Dulles Intl to Belfast that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Belfast flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to Belfast with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Belfast flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Dulles Intl to Belfast that allow pets onboard?

    Many airlines flying from Dulles Intl to Belfast offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to Belfast?

    Yes, you can often find last-minute deals on Dulles Intl to Belfast flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to Belfast flight deals updated?

    The Washington, D.C. Dulles Intl Airport to Belfast flight deals you see on this page were last updated on 9/17.

See more FAQs

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Top 2 airlines flying from Dulles Intl to Belfast

Discover the top 2 airlines 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 3,025,540 searches. Data last updated September 17, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$557Average$822FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$571Average$738FlexibilityNo cancel feeOn-time71%

Search flights from Dulles Intl to Belfast by cabin class

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