Find flights
When to book
Airlines

Cheap flights from Washington, D.C. Reagan-National Airport to Belfast from £437

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 22/5. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BHD
5 May — 12 May1
1 adult

Cheap flight deals from Reagan-National to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 30 April 2025.

Round-trip from

£449

One-way from

£437

Popular in

June

Cheapest in

January

Average price

£494
British Airways
  • British Airways
  • 6/9-20/12
  • 4 total stops
  • 32h 45m total
  • Washington, D.C. to Belfast
Search Deals
22/5
  • 22/5
  • 3 total stops
  • 28h 16m total
  • Washington, D.C. to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£101 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Reagan-National to Belfast

Cheapest flights from Reagan-National to Belfast
Explore the most affordable flight options available from Reagan-National to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Sat 6/917:00DCA - BHD
2 stops14h 15mBritish Airways
Sat 20/1209:10BHD - DCA
2 stops18h 30mBritish Airways
Deal found 30/4£449
Tue 10/609:40DCA - BFS
3 stops26h 00mMultiple Airlines
Tue 17/608:20BFS - DCA
3 stops18h 33mMultiple Airlines
Deal found 29/4£569
Sat 5/717:29DCA - BHD
2 stops18h 26mDelta
Sun 24/806:30BHD - DCA
2 stops21h 33mDelta
Deal found 29/4£612
Tue 13/517:49DCA - BHD
2 stops14h 11mMultiple Airlines
Fri 16/507:00BHD - DCA
3 stops40h 03mMultiple Airlines
Deal found 29/4£823
Fri 13/619:47DCA - BHD
2 stops14h 43mAmerican Airlines
Fri 4/706:35BHD - DCA
2 stops16h 31mAmerican Airlines
Deal found 30/4£1,008

Cheapflights Fare Finder

Customise your flight search to find flights from Reagan-National 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 858,174 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Belfast that are best for you.

Fly from

Reagan-National

Fly to

Belfast

Route

Depart

Return

Price

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sat 6/9

17:00-12:15

2 stops14h 15m

Belfast City

Sat 20/12

09:10-22:40

2 stops18h 30m

£449

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 10/6

09:40-16:40

3 stops26h 00m

Belfast Intl

Tue 17/6

08:20-21:53

3 stops18h 33m

£569

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sat 5/7

17:29-16:55

2 stops18h 26m

Belfast City

Sun 24/8

06:30-23:03

2 stops21h 33m

£612

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 13/5

17:49-13:00

2 stops14h 11m

Belfast City

Fri 16/5

07:00-18:03

3 stops40h 03m

£823

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 13/6

19:47-15:30

2 stops14h 43m

Belfast City

Fri 4/7

06:35-18:06

2 stops16h 31m

£1,008

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Thu 22/5

06:59-16:15

3 stops28h 16m

£437

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 22/5

06:59-12:40

3 stops24h 41m

£494

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 22/5

17:49-11:10

2 stops12h 21m

£676

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Best time to book a flight from Reagan-National to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Reagan-National 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Belfast

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 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

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 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

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 30 April 2025.
Delta
8.0
Very Good
7,936 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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
7,936 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,837 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Reagan-National 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 deals for flights from Reagan-National to Belfast that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Belfast?

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

  • Can I find deals for business class flights from Reagan-National to Belfast?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Belfast?

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

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.
Belfast car hire
Belfast Intl Airport car hire
Londonderry Eglinton Airport car hire
Isle of Islay Glenegedale Airport car hire
Londonderry car hire

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 Reagan-National to Belfast?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Reagan-National to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Reagan-National to Belfast?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Reagan-National to Belfast for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Reagan-National to Belfast with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Reagan-National to Belfast flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Reagan-National to Belfast become cheaper?

Not ready to book yet? You can track prices for flights from Reagan-National to Belfast on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights