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Cheap flights from Dulles Intl (IAD) to Belfast from $370

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — BHD
Jun 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
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 June 11, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$640

One-way from

$434
High demand for flights, 32% potential price rise
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Best time to find cheap flights, 28% potential price drop
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From Washington, D.C. Dulles Intl to Belfast
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One-way flight from Washington, D.C. Dulles Intl to Belfast
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What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Belfast?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 25% when planning your travel around this day of the week.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Belfast?

The best pricing can be found in the month of September. Prices to Belfast from Washington, D.C. Dulles Intl Airport average $832. You can even find prices in September for less than $832, as users have found deals to Belfast from as low as $608. The month of December appears to be one of the more expensive times to travel to Belfast from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 42%.

What is the cheapest time of day to fly from IAD to BFS?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Belfast is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 11% on airfare.

Cheap Dulles Intl to Belfast flights in June & July 2024

Find cheap flight options from Dulles Intl to Belfast specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Prices were last updated on June 11, 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.
Thu 7/255:55 pmIAD - BHD
1 stop10h 05mBritish Airways
Thu 8/19:35 amBHD - IAD
1 stop11h 05mBritish Airways
Deal found 6/10$767
Thu 7/45:55 pmIAD - BHD
1 stop12h 05mBritish Airways
Thu 7/116:35 amBHD - IAD
2 stops22h 26mBritish Airways
Deal found 6/11$809
Tue 6/251:13 pmIAD - BHD
2 stops16h 22mBritish Airways
Tue 7/26:15 pmBHD - IAD
1 stop31h 15mBritish Airways
Deal found 6/10$913
Thu 7/2510:45 pmIAD - BHD
1 stop16h 55mBritish Airways
Thu 8/17:30 pmBHD - IAD
2 stops25h 10mBritish Airways
Deal found 6/10$914
Thu 7/48:45 pmIAD - BFS
2 stops19h 55mMultiple Airlines
Thu 7/117:05 amBFS - IAD
2 stops17h 20mMultiple Airlines
Deal found 6/11$917
Thu 7/47:20 pmIAD - BHD
2 stops16h 30mDelta
Thu 7/115:20 pmBHD - IAD
2 stops28h 56mDelta
Deal found 6/11$924
Thu 7/45:55 pmIAD - BHD
1 stop10h 05mBritish Airways
Thu 7/119:35 amBHD - IAD
1 stop15h 55mBritish Airways
Deal found 6/11$1,064
Fri 7/125:10 pmIAD - BHD
2 stops14h 40mBritish Airways
Sun 7/217:40 pmBHD - IAD
2 stops29h 00mBritish Airways
Deal found 6/10$1,074
Tue 6/255:50 pmIAD - BHD
1 stop18h 00mVirgin Atlantic
Tue 7/25:20 pmBHD - IAD
1 stop27h 40mVirgin Atlantic
Deal found 6/10$1,081

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 3,117,830 searches. Data last updated June 11, 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.
Wed 9/410:45 pmIAD - BHD
1 stop11h 50mAmerican Airlines
Thu 9/1212:45 pmBHD - IAD
1 stop31h 50mAmerican Airlines
Deal found 6/10$565
Wed 9/410:45 pmIAD - BHD
1 stop11h 50mAmerican Airlines
Thu 9/129:35 amBHD - IAD
2 stops18h 35mAmerican Airlines
Deal found 6/10$575
Wed 8/2110:45 pmIAD - BHD
1 stop13h 55mAmerican Airlines
Mon 9/29:50 amBHD - IAD
1 stop15h 40mAmerican Airlines
Deal found 6/10$580
Sun 10/1310:50 pmIAD - BHD
1 stop13h 45mBritish Airways
Sat 10/197:50 pmBHD - IAD
1 stop29h 45mBritish Airways
Deal found 6/11$587
Sun 10/1310:50 pmIAD - BHD
1 stop13h 45mBritish Airways
Sat 10/197:50 pmBHD - IAD
1 stop29h 45mBritish Airways
Deal found 6/10$588
Wed 8/2110:45 pmIAD - BHD
1 stop11h 50mBritish Airways
Mon 9/27:30 pmBHD - IAD
1 stop30h 00mBritish Airways
Deal found 6/10$592
Tue 9/1710:45 pmIAD - BHD
1 stop11h 35mAmerican Airlines
Sat 9/286:50 amBHD - IAD
2 stops17h 25mAmerican Airlines
Deal found 6/10$595
Tue 9/1710:45 pmIAD - BHD
1 stop11h 35mBritish Airways
Fri 9/2710:10 amBHD - IAD
2 stops17h 00mBritish Airways
Deal found 6/10$603
Wed 8/216:52 amIAD - BHD
2 stops27h 43mIberia
Mon 9/26:35 amBHD - IAD
1 stop18h 55mIberia
Deal found 6/10$614

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 3,117,830 searches. Data last updated June 11, 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.
Tue 6/251:13 pmIAD - BHD
2 stops16h 22mBritish Airways
Tue 7/26:15 pmBHD - IAD
1 stop31h 15mBritish Airways
Deal found 6/10$913
Tue 6/255:50 pmIAD - BHD
1 stop18h 00mVirgin Atlantic
Tue 7/25:20 pmBHD - IAD
1 stop27h 40mVirgin Atlantic
Deal found 6/10$1,081
Tue 6/251:13 pmIAD - BHD
2 stops16h 22mBritish Airways
Tue 7/27:30 pmBHD - IAD
2 stops25h 10mBritish Airways
Deal found 6/10$1,095
Thu 6/204:00 pmIAD - BHD
2 stops12h 15mMultiple Airlines
Wed 6/266:50 pmBHD - IAD
2 stops30h 29mMultiple Airlines
Deal found 6/10$1,136
Wed 6/125:55 pmIAD - BHD
1 stop9h 55mBritish Airways
Wed 6/199:50 amBHD - IAD
1 stop15h 40mBritish Airways
Deal found 6/10$1,185
Thu 6/205:03 pmIAD - BHD
2 stops18h 47mDelta
Wed 6/265:20 pmBHD - IAD
1 stop27h 15mDelta
Deal found 6/10$1,195
Wed 6/128:15 pmIAD - BHD
2 stops14h 20mBritish Airways
Wed 6/199:50 amBHD - IAD
1 stop15h 40mBritish Airways
Deal found 6/10$1,218
Wed 6/121:13 pmIAD - BHD
2 stops17h 37mBritish Airways
Wed 6/199:50 amBHD - IAD
2 stops19h 09mBritish Airways
Deal found 6/10$1,228
Tue 6/2510:45 pmIAD - BHD
2 stops35h 05mLufthansa
Tue 7/93:35 pmBHD - IAD
2 stops28h 15mLufthansa
Deal found 6/10$1,300

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 3,117,830 searches. Data last updated June 11, 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.
Sat 9/711:15 pmIAD - BHD
2 stops28h 50mMultiple Airlines
Deal found 6/11$370
Fri 7/55:25 pmIAD - BHD
1 stop18h 25mDelta
Deal found 6/11$429
Fri 7/51:08 pmIAD - BHD
2 stops22h 42mDelta
Deal found 6/11$434
Fri 7/510:20 pmIAD - BFS
2 stops27h 25mMultiple Airlines
Deal found 6/9$468
Sat 9/75:10 pmIAD - BHD
3 stops16h 25mMultiple Airlines
Deal found 6/11$540
Tue 7/21:13 pmIAD - BHD
2 stops16h 22mAmerican Airlines
Deal found 6/10$570
Tue 7/25:55 pmIAD - BHD
1 stop10h 10mMultiple Airlines
Deal found 6/11$665
Tue 7/25:55 pmIAD - BHD
1 stop10h 10mMultiple Airlines
Deal found 6/10$666
Fri 7/510:45 pmIAD - BFS
1 stop19h 05mMultiple Airlines
Deal found 6/9$676

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 3,117,830 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$565 - $1,081

Route

Depart

Return

Price

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 9/4

1 stop11h 50m

Belfast City

Thu 9/12

1 stop31h 50m

$565

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 9/4

1 stop11h 50m

Belfast City

Thu 9/12

2 stops18h 35m

$575

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 10/13

1 stop13h 45m

Belfast City

Sat 10/19

1 stop29h 45m

$587

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 8/21

2 stops27h 43m

Belfast City

Mon 9/2

1 stop18h 55m

$614

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 9/4

2 stops18h 47m

Belfast City

Thu 9/12

2 stops34h 44m

$651

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 8/11

2 stops17h 24m

Belfast City

Sun 8/18

2 stops27h 37m

$686

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 9/4

2 stops21h 10m

Belfast Intl

Thu 9/12

2 stops27h 00m

$730

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 8/21

2 stops35h 30m

Belfast City

Mon 9/2

2 stops48h 37m

$820

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 6/25

1 stop18h 00m

Belfast City

Tue 7/2

1 stop27h 40m

$1,081

Flights are sorted by cheapest first

Deals found on 6/10

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Belfast?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Belfast. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Belfast flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Belfast by month

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

BFS

Temperature

41 - 60.8 °F

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 June 11, 2024.
Peruse reviews from past customers who have flown with British Airways, Virgin Atlantic and Lufthansa 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.
Delta
8.0
Very good
10,277 reviews

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,277 reviews
Delta
8.0
Very good
10,277 reviews

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,470 reviews
Delta
8.0
Very good
10,277 reviews

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.6
Good
714 reviews
Delta
8.0
Very good
10,277 reviews

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,129 reviews
Delta
8.0
Very good
10,277 reviews

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Iberia
7.1
Good
2,709 reviews
Delta
8.0
Very good
10,277 reviews

Comfort

7.9

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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 American Airlines for just $565, but on average you can expect to pay $640.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Belfast for under $1,000?

    There are currently 19+ open flights from Washington, D.C. Dulles Intl Airport to Belfast within the next 7 days for less than $1,000.

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

    Flying on American Airlines is currently your cheapest option to Belfast, with prices starting at $565. Additional round-trip tickets that might be worth considering are offered by British Airways and Iberia, with the lowest prices starting at $587 and $614, respectively. American Airlines is priced at 34% 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 6/11.

  • 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 $641). Flying from Washington, D.C. Dulles Intl Airport to Belfast in June is currently the most expensive (average of $1,214). 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.

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Alternative routes for Dulles Intl to Belfast
See prices for flight routes from nearby airports that may be better suited for you.

Dulles Intl to Belfast City flights
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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 3,117,830 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$598Average$746FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$618Average$851FlexibilityNo cancel feeOn-time70%
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Washington, D.C. Dulles Intl Airport to Scottsbluff flights

Search flights from Dulles Intl to Belfast by cabin class

Find flights from Dulles Intl to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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