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

Cheapflights users have booked flights from Washington, D.C. to Belfast round-trip from $630. Other airlines that can offer you cheap pricing are British Airways, from $632, and Delta, from $676. You may be able to fly from Washington, D.C. to Belfast for 16% less than the average price by searching for these airlines.

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

$389 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on KLM and Delta, with prices starting from $416 and $421, respectively.

What is the cheapest month to book a flight from Washington, D.C. to Belfast?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Belfast (average of $657). Flying from Washington, D.C. 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.

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

Travelers seeking maximum savings on their Washington, D.C. to Belfast flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to Belfast?

Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Dulles Intl - Belfast City or Washington, D.C. Reagan-National - Belfast Intl when deciding on the best route from Washington, D.C. to Belfast.

What is the cheapest day to fly round-trip from Washington, D.C. to Belfast?

Monday is generally a great day to depart. Flying on this day could help you save up to 18%.

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

Our data shows that October tends to be the cheapest month to fly to Belfast from Washington, D.C.. Users have commonly found prices around $756 for the month, but tickets can be as low as $578. Due to multiple factors, prepare for potentially higher prices in June.

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

It’s typically best to fly out from Washington, D.C. to Belfast at noon. Doing so could potentially save you 9% on the flight price compared to flying in the morning, which is usually more expensive.

Can I find deals for flights from Washington, D.C. to Belfast that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Belfast?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Belfast.

Can I find deals for business class flights from Washington, D.C. to Belfast?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$276+ Flights from Washington, D.C. to Belfast

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Cheap flight deals from Washington, D.C. to Belfast

Popular in	June
Cheapest in	October
Round-trip from	$630 (American Airlines)
One-way from	$276 (Kiwi.com)

High demand for flights, 23% potential price rise

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Best time to find cheap flights, 18% potential price drop

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From Washington, D.C. (WAS) to Belfast

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One-way flight from Washington, D.C. (WAS) to Belfast

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Find flight deals from Washington, D.C. to Belfast

Cheapest flights from Washington, D.C. to Belfast
Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

Fri 11/228:30 pmBWI - BHD

1 stop17h 45mBritish Airways

Mon 11/256:35 amBHD - BWI

1 stop17h 10mBritish Airways

Deal found 11/20

$781

Sun 12/297:30 pmBWI - BHD

2 stops16h 40mMultiple Airlines

Wed 1/87:25 amBHD - BWI

3 stops21h 16mMultiple Airlines

Deal found 11/20

$1,397

Best flights from Washington, D.C. to Belfast
Discover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2024.

Thu 1/99:55 pmIAD - BHD

1 stop11h 05mAmerican Airlines

Mon 1/1311:30 amBHD - IAD

1 stop13h 15mAmerican Airlines

Deal found 11/20

$630

Fri 2/146:00 pmIAD - BHD

1 stop11h 30mBritish Airways

Sat 2/229:10 amBHD - IAD

1 stop11h 25mBritish Airways

Deal found 11/19

$632

Mon 1/207:30 pmBWI - BHD

2 stops20h 00mMultiple Airlines

Sat 1/257:20 amBHD - BWI

2 stops16h 10mMultiple Airlines

Deal found 11/20

$643

Thu 1/95:35 pmIAD - BHD

1 stop18h 15mDelta

Mon 1/136:30 amBHD - IAD

2 stops21h 46mDelta

Deal found 11/21

$676

Sat 3/156:10 pmIAD - BHD

2 stops16h 05mAer Lingus

Sat 3/223:05 pmBHD - IAD

2 stops33h 10mAer Lingus

Deal found 11/20

$814

Fri 5/165:25 pmIAD - BHD

1 stop18h 25mKLM

Fri 5/236:30 amBHD - IAD

2 stops16h 52mKLM

Deal found 11/20

$962

Mon 1/204:58 pmIAD - BHD

2 stops18h 52mVirgin Atlantic

Sat 1/256:30 amBHD - IAD

2 stops22h 48mVirgin Atlantic

Deal found 11/20

$1,013

Fri 1/248:30 pmBWI - BHD

1 stop12h 45mAmerican Airlines

Sat 2/86:30 amBHD - BWI

1 stop17h 15mAmerican Airlines

Deal found 11/20

$630

Thu 1/98:30 pmBWI - BHD

1 stop12h 30mBritish Airways

Mon 1/139:10 amBHD - BWI

1 stop14h 35mBritish Airways

Deal found 11/21

$633

Thu 1/96:05 pmDCA - BHD

2 stops14h 55mAmerican Airlines

Mon 1/136:35 amBHD - DCA

2 stops14h 52mAmerican Airlines

Deal found 11/21

$645

Fri 5/166:50 pmIAD - BHD

2 stops20h 55mMultiple Airlines

Fri 5/238:20 amBHD - IAD

2 stops14h 20mMultiple Airlines

Deal found 11/20

$821

Sun 1/56:55 amBWI - BFS

3 stops32h 40mMultiple Airlines

Sun 1/1210:10 pmBFS - BWI

2 stops23h 50mMultiple Airlines

Deal found 11/21

$959

Last-minute flights from Washington, D.C. to Belfast
Discover last-minute flight deals from Washington, D.C. to Belfast. Data last updated November 21, 2024 and is based on user searches.

Fri 11/228:30 pmBWI - BHD

1 stop17h 45mBritish Airways

Mon 11/256:35 amBHD - BWI

1 stop17h 10mBritish Airways

Deal found 11/20

$781

Sun 12/297:30 pmBWI - BHD

2 stops16h 40mMultiple Airlines

Wed 1/87:25 amBHD - BWI

3 stops21h 16mMultiple Airlines

Deal found 11/20

$1,397

One-way flights from Washington, D.C. to Belfast
Search for one-way flight options from Washington, D.C. to Belfast. Find affordable one-way fares based on user searches. Data last updated November 21, 2024.

Tue 12/37:30 pmBWI - BFS

2 stops30h 45mMultiple Airlines

Deal found 11/21

$276

Sun 12/16:10 pmIAD - BFS

2 stops34h 40mMultiple Airlines

Deal found 11/21

$283

Mon 12/26:10 pmIAD - BHD

2 stops37h 40mMultiple Airlines

Deal found 11/21

$306

Wed 11/279:55 pmIAD - BHD

1 stop11h 20mBritish Airways

Deal found 11/21

$389

Wed 11/274:40 pmDCA - BHD

2 stops12h 25mBritish Airways

Deal found 11/21

$394

Sat 11/305:35 pmIAD - BHD

1 stop18h 15mKLM

Deal found 11/21

$416

Fri 11/295:04 pmIAD - BHD

2 stops18h 46mDelta

Deal found 11/21

$421

Fri 11/296:40 pmDCA - BHD

2 stops17h 10mKLM

Deal found 11/21

$421

Tue 12/34:00 pmDCA - BFS

3 stops16h 20mMultiple Airlines

Deal found 11/21

$470

Sat 11/3012:56 pmDCA - BHD

2 stops17h 14mIberia

Deal found 11/21

$689

Find flights from Washington, D.C. to Belfast within your budget

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Fri 1/24

8:30 pm-2:15 pm

1 stop12h 45m

Belfast City

Sat 2/8

6:30 am-6:45 pm

1 stop17h 15m

$630

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 3/15

10:55 pm-2:15 pm

1 stop11h 20m

Belfast City

Sat 3/22

11:15 am-8:45 pm

1 stop13h 30m

$631

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

6:00 pm-10:20 am

1 stop11h 20m

Belfast City

Mon 1/13

6:35 am-3:35 pm

1 stop14h 00m

$633

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 1/9

8:30 pm-2:00 pm

1 stop12h 30m

Belfast City

Mon 1/13

9:10 am-6:45 pm

1 stop14h 35m

$633

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 1/20

7:30 pm-8:30 pm

2 stops20h 00m

Belfast City

Sat 1/25

7:20 am-6:30 pm

2 stops16h 10m

$643

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 1/9

6:05 pm-2:00 pm

2 stops14h 55m

Belfast City

Mon 1/13

6:35 am-4:27 pm

2 stops14h 52m

$645

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

5:35 pm-4:50 pm

1 stop18h 15m

Belfast City

Mon 1/13

6:30 am-11:16 pm

2 stops21h 46m

$676

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

5:10 pm-1:35 pm

2 stops15h 25m

Belfast City

Mon 1/13

7:30 pm-3:40 pm

2 stops25h 10m

$845

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Sun 1/5

6:55 am-8:35 pm

3 stops32h 40m

Belfast Intl

Sun 1/12

10:10 pm-5:00 pm

2 stops23h 50m

$959

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 1/5

2:00 pm-9:50 pm

2 stops26h 50m

Belfast Intl

Sun 1/12

7:55 am-12:15 pm

2 stops33h 20m

$1,279

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 22 results

Best time to book a flight from Washington, D.C. to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Washington, D.C. 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 Washington, D.C. to Belfast

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

Rainfall in Belfast 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

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

Read reviews from past customers who have flown American Airlines and British Airways from Washington, D.C. to Belfast. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,755 reviews

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

8,755 reviews

Delta

8.0

Very good

8,755 reviews

Reviews

1 / 10

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

KLM

7.8

Good

1,349 reviews

Delta

8.0

Very good

8,755 reviews

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

8,755 reviews

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

8,755 reviews

Reviews

1 / 10

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

Aer Lingus

7.1

Good

1,089 reviews

Delta

8.0

Very good

8,755 reviews

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

What are the cheapest airlines flying from Washington, D.C. to Belfast round-trip?
Cheapflights users have booked flights from Washington, D.C. to Belfast round-trip from $630. Other airlines that can offer you cheap pricing are British Airways, from $632, and Delta, from $676. You may be able to fly from Washington, D.C. to Belfast for 16% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. to Belfast one-way?
$389 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on KLM and Delta, with prices starting from $416 and $421, respectively.
What are the most popular routes from Washington, D.C. to Belfast?
Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Dulles Intl - Belfast City or Washington, D.C. Reagan-National - Belfast Intl when deciding on the best route from Washington, D.C. to Belfast.
Can I find deals for flights from Washington, D.C. to Belfast that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Belfast.
Can I find deals for business class flights from Washington, D.C. to Belfast?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Belfast?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Belfast (average of $657). Flying from Washington, D.C. 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Belfast

Dulles Intl to Belfast Intl flights

Dulles Intl to Belfast City flights

Reagan-National to Belfast Intl flights

Reagan-National to Belfast City flights

Top 2 airlines flying from Washington, D.C. to Belfast

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$557	Average$837	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$614	Average$893	FlexibilityNo cancel fee	On-time71%

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$276+ Cheap flights from Washington, D.C. (WAS) 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Belfast with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington, D.C. to Belfast

Popular in

Cheapest in

Round-trip from

One-way from

Find flight deals from Washington, D.C. to Belfast

Cheapest flights from Washington, D.C. to BelfastExplore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

Find flights from Washington, D.C. to Belfast within your budget

Best time to book a flight from Washington, D.C. to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Washington, D.C. with our price prediction graph.

Travel insights for flights from Washington, D.C. to Belfast

Get recent, data-driven insights about flights from Washington, D.C. 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.

Temperature in Belfast by month

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

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown American Airlines and British Airways from Washington, D.C. to Belfast. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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. to Belfast round-trip?

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

What are the most popular routes from Washington, D.C. to Belfast?

Can I find deals for flights from Washington, D.C. to Belfast that include hotel bookings?

How can I find direct flights from Washington, D.C. to Belfast?

Can I find deals for business class flights from Washington, D.C. to Belfast?

What is the cheapest month to book a flight from Washington, D.C. to Belfast?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Washington, D.C. to Belfast

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Cheapest flights from Washington, D.C. to Belfast
Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.