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

British Airways, at £510, was found to be the cheapest airline from Washington, D.C. to Belfast.Alternate airlines flying return to your destination include Iberia and American Airlines. You may be able to fly from Washington, D.C. to Belfast for 14% less than the average price by searching for these airlines.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Belfast (average of £67). Flying from Washington, D.C. 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.

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

The most popular flight routes from Washington, D.C. to Belfast are Washington, D.C. Dulles Intl - Belfast Intl, Baltimore/Washington - Belfast Intl and Washington, D.C. Dulles Intl - Belfast City.

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

The best pricing can be found in the month of October. Prices to Belfast from Washington, D.C. average £600. You can even find prices in October for less than £600, as users have found deals to Belfast from as low as £456. The month of July appears to be one of the more expensive times to travel to Belfast from Washington, D.C.. Flying in the targeted month can save you up to 33%.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Belfast as you normally would.

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 holiday 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.

£509+ Flights from Washington, D.C. to Belfast

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

Round-trip from	£509
Popular in	July
Cheapest in	October
Average price	£577

4/3-9/3
4 total stops
49h 30m total
Washington, D.C. to Belfast

Search Deals

High demand for flights, 17% potential price rise

Search Deals

Best time to find cheap flights, 3% potential price drop

Search Deals

Average for round-trip flights in December 2024

Search Deals

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

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 stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.

Tue 4/317:30IAD - BFS

2 stops18h 30mMultiple Airlines

Sun 9/311:00BFS - IAD

2 stops31h 00mMultiple Airlines

Deal found 17/12£509

Thu 13/322:55IAD - BHD

1 stop11h 05mBritish Airways

Mon 17/319:30BHD - IAD

1 stop29h 15mBritish Airways

Deal found 18/12£510

Tue 4/318:00IAD - BHD

1 stop11h 30mIberia

Sun 9/309:10BHD - IAD

1 stop11h 25mIberia

Deal found 17/12£513

Tue 21/121:55IAD - BHD

1 stop13h 50mAmerican Airlines

Mon 27/109:10BHD - IAD

1 stop11h 25mAmerican Airlines

Deal found 16/12£514

Thu 13/319:59IAD - BHD

2 stops21h 01mDelta

Mon 17/306:30BHD - IAD

1 stop14h 15mDelta

Deal found 18/12£544

Mon 19/517:25IAD - BHD

1 stop22h 55mKLM

Mon 2/617:20BHD - IAD

1 stop27h 15mKLM

Deal found 18/12£621

Mon 19/520:40IAD - BHD

2 stops15h 45mAer Lingus

Mon 2/607:00BHD - IAD

2 stops17h 10mAer Lingus

Deal found 18/12£801

Thu 9/120:30BWI - BHD

1 stop12h 30mBritish Airways

Mon 13/111:30BHD - BWI

1 stop12h 15mBritish Airways

Deal found 18/12£513

Tue 4/320:09BWI - BHD

2 stops15h 36mAmerican Airlines

Sun 9/309:10BHD - BWI

1 stop14h 35mAmerican Airlines

Deal found 17/12£517

Tue 4/318:10BWI - BFS

2 stops17h 50mMultiple Airlines

Sun 9/321:10BFS - BWI

2 stops24h 50mMultiple Airlines

Deal found 17/12£547

Fri 10/115:30BWI - BHD

2 stops20h 20mDelta

Mon 13/106:30BHD - BWI

2 stops17h 48mDelta

Deal found 16/12£553

Tue 4/316:10DCA - BHD

2 stops13h 20mBritish Airways

Sun 9/306:30BHD - DCA

2 stops16h 24mBritish Airways

Deal found 17/12£517

Last-minute flights from Washington, D.C. to Belfast
Discover last-minute flight deals from Washington, D.C. to Belfast. Data last updated 19 December 2024 and is based on user searches.

Wed 8/117:00DCA - BHD

2 stops18h 50mDelta

Mon 13/106:30BHD - DCA

2 stops21h 53mDelta

Deal found 16/12£553

Thu 9/120:30BWI - BHD

1 stop12h 30mBritish Airways

Mon 13/111:30BHD - BWI

1 stop12h 15mBritish Airways

Deal found 18/12£513

Thu 9/114:54DCA - BHD

2 stops18h 06mBritish Airways

Mon 13/111:30BHD - DCA

2 stops16h 11mBritish Airways

Deal found 16/12£517

Thu 9/118:05DCA - BHD

2 stops14h 55mAmerican Airlines

Mon 13/106:35BHD - DCA

2 stops16h 24mAmerican Airlines

Deal found 18/12£524

Fri 10/115:30BWI - BHD

2 stops20h 20mDelta

Mon 13/106:30BHD - BWI

2 stops17h 48mDelta

Deal found 16/12£553

Tue 14/119:30BWI - BFS

2 stops17h 25mMultiple Airlines

Mon 20/122:25BFS - BWI

3 stops47h 35mMultiple Airlines

Deal found 16/12£581

Tue 14/119:40IAD - BFS

2 stops17h 15mMultiple Airlines

Mon 20/122:25BFS - IAD

3 stops25h 00mMultiple Airlines

Deal found 16/12£598

Thu 16/117:16IAD - BHD

2 stops18h 34mDelta

Mon 20/106:30BHD - IAD

1 stop14h 15mDelta

Deal found 16/12£545

Fri 17/118:00IAD - BHD

1 stop11h 30mBritish Airways

Tue 21/119:25BHD - IAD

1 stop25h 10mBritish Airways

Deal found 16/12£511

Tue 21/121:55IAD - BHD

1 stop13h 50mAmerican Airlines

Mon 27/109:10BHD - IAD

1 stop11h 25mAmerican Airlines

Deal found 16/12£514

Tue 21/117:26BWI - BHD

2 stops15h 09mAmerican Airlines

Mon 27/106:35BHD - BWI

1 stop17h 10mAmerican Airlines

Deal found 16/12£517

Tue 21/119:40IAD - BHD

2 stops19h 50mMultiple Airlines

Mon 27/107:25BHD - IAD

2 stops16h 00mMultiple Airlines

Deal found 16/12£554

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 4/3

17:30-17:00

2 stops18h 30m

Belfast Intl

Sun 9/3

11:00-14:00

2 stops31h 00m

£509

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 13/3

22:55-14:00

1 stop11h 05m

Belfast City

Mon 17/3

19:30-20:45

1 stop29h 15m

£510

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 4/3

18:00-10:30

1 stop11h 30m

Belfast City

Sun 9/3

09:10-16:35

1 stop11h 25m

£513

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 9/1

20:30-14:00

1 stop12h 30m

Belfast City

Mon 13/1

11:30-18:45

1 stop12h 15m

£513

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 21/1

21:55-16:45

1 stop13h 50m

Belfast City

Mon 27/1

09:10-15:35

1 stop11h 25m

£514

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Tue 4/3

20:09-16:45

2 stops15h 36m

Belfast City

Sun 9/3

09:10-19:45

1 stop14h 35m

£517

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 4/3

16:10-10:30

2 stops13h 20m

Belfast City

Sun 9/3

06:30-17:54

2 stops16h 24m

£517

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 9/1

18:05-14:00

2 stops14h 55m

Belfast City

Mon 13/1

06:35-17:59

2 stops16h 24m

£524

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 17/1

17:35-16:50

1 stop18h 15m

Belfast City

Wed 22/1

06:30-15:45

1 stop14h 15m

£541

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 13/3

19:59-21:00

2 stops21h 01m

Belfast City

Mon 17/3

06:30-16:45

1 stop14h 15m

£544

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 18 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 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 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 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

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

To help decide which airline to fly from Washington, D.C. to Belfast, see what other customers have to say about British Airways, Delta and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,604 reviews

Check prices

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

Check prices

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

8,604 reviews

Check prices

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

Check prices

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

1,078 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

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

Iberia

7.0

Good

2,655 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

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?
British Airways, at £510, was found to be the cheapest airline from Washington, D.C. to Belfast.Alternate airlines flying return to your destination include Iberia and American Airlines. You may be able to fly from Washington, D.C. to Belfast for 14% less than the average price by searching for these airlines.
What are the most popular routes from Washington, D.C. to Belfast?
The most popular flight routes from Washington, D.C. to Belfast are Washington, D.C. Dulles Intl - Belfast Intl, Baltimore/Washington - Belfast Intl and Washington, D.C. Dulles Intl - Belfast City.
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 holiday 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Belfast (average of £67). Flying from Washington, D.C. 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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How does Cheapflights help users find flights from Washington, D.C. to Belfast?

Cheapflights makes it easy to find Washington, D.C. to Belfast flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Belfast?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from Washington, D.C..

Can Cheapflights find flights from Washington, D.C. to Belfast with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington, D.C. to Belfast, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Belfast become cheaper?

Yes, Cheapflights offers price alerts on Washington, D.C. to Belfast flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Washington, D.C. to Belfast from £509

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.

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

Round-trip from

Popular in

Cheapest in

Average price

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

Best flights from Washington, D.C. to BelfastDiscover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.

Discover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 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

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 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.

Complete your trip

Complete your trip to Belfast by adding a car hire and/or hotel booking to your travel itinerary.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Belfast?

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Belfast?

Can Cheapflights find flights from Washington, D.C. to Belfast with no change fees?

Can Cheapflights notify me if prices for flights from Washington, D.C. to Belfast become cheaper?

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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 stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.