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$659+ Cheap flights from Reagan-National (DCA) to Belfast

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BHD
août 3 — août 101
dim. 8/3
dim. 8/10
1 adult, Economy
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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 juillet 29, 2025.

Round-trip from

$659
(Justfly.com)

Popular in

June

Cheapest in

February

Average price

$1,023
From Washington, D.C. Reagan-National to Belfast
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Highest demand for flights based on searches. 22% potential increase in price ($217 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 juillet 29, 2025.

This Justfly.com deal was found by Cheapflights users on 7/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/67:45 pmDCA - BHD
2 stops16h 30mBritish Airways
sam. 12/2011:35 amBHD - DCA
2 stops17h 22mBritish Airways
Deal found 7/28$659
This Delta deal was found by Cheapflights users on 7/27. 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.
jeu. 10/95:00 pmDCA - BHD
2 stops18h 55mDelta
lun. 10/136:30 amBHD - DCA
2 stops22h 22mDelta
Deal found 7/27$723
This KLM deal was found by Cheapflights users on 7/27. 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.
mer. 11/125:15 pmDCA - BHD
2 stops18h 35mKLM
dim. 11/166:30 amBHD - DCA
2 stops15h 02mKLM
Deal found 7/27$775
This Mytrip deal was found by Cheapflights users on 7/29. 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.
ven. 9/129:40 amDCA - BFS
3 stops30h 20mMultiple Airlines
ven. 9/196:05 amBFS - DCA
2 stops16h 59mMultiple Airlines
Deal found 7/29$911
This American Airlines deal was found by Cheapflights users on 7/26. 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.
jeu. 10/165:30 pmDCA - BHD
2 stops12h 40mAmerican Airlines
sam. 10/189:35 amBHD - DCA
2 stops16h 24mAmerican Airlines
Deal found 7/26$978
This Mytrip deal was found by Cheapflights users on 7/27. 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.
mar. 10/79:40 amDCA - BHD
3 stops29h 45mMultiple Airlines
dim. 10/127:05 amBHD - DCA
2 stops19h 46mMultiple Airlines
Deal found 7/27$1,127

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated juillet 29, 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

sam. 9/6

7:45 pm-5:15 pm

2 stops16h 30m

Belfast City

sam. 12/20

11:35 am-11:57 pm

2 stops17h 22m

$659

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

jeu. 10/9

5:00 pm-4:55 pm

2 stops18h 55m

Belfast City

lun. 10/13

6:30 am-11:52 pm

2 stops22h 22m

$723

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

mer. 11/12

5:15 pm-4:50 pm

2 stops18h 35m

Belfast City

dim. 11/16

6:30 am-4:32 pm

2 stops15h 02m

$775

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

ven. 9/12

9:40 am-9:00 pm

3 stops30h 20m

Belfast Intl

ven. 9/19

6:05 am-6:04 pm

2 stops16h 59m

$911

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

jeu. 10/16

5:30 pm-11:10 am

2 stops12h 40m

Belfast City

sam. 10/18

9:35 am-8:59 pm

2 stops16h 24m

$978

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

mar. 10/7

9:40 am-8:25 pm

3 stops29h 45m

Belfast City

dim. 10/12

7:05 am-9:51 pm

2 stops19h 46m

$1,127

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Belfast
No data available for this route at this time. Please check back soon.

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 juillet 29, 2025.
Read reviews from past customers who have flown Delta, KLM, and American Airlines from Washington, D.C. Reagan-National Airport to Belfast. 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
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.6
Okay
7,208 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

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