$411+ Cheap flights from Washington, D.C. (WAS) 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BHD
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Washington, D.C. to Belfast with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Washington, D.C. to Belfast
Cheapest
Best
Last-minute
One-way
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 October 30, 2026.
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 October 30, 2026.
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Mon 11/237:40 pm -
2 stops18h 30m
Tue 12/87:40 pm -
3 stops28h 25m
Deal found 10/25![Multiple Airlines logo]()
$807
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:40 pm -
2 stops21h 40m
Wed 12/166:25 am -
2 stops17h 05m
Deal found 10/26![Multiple Airlines logo]()
$827
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Mon 11/237:40 pm -
3 stops19h 50m
Tue 12/86:20 pm -
3 stops29h 45m
Deal found 10/25![Multiple Airlines logo]()
$841
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 12/117:40 pm -
3 stops17h 55m
Fri 12/186:00 am -
2 stops18h 05m
Deal found 10/27![Multiple Airlines logo]()
$960
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:40 pm -
2 stops20h 15m
Sat 12/197:05 pm -
3 stops30h 30m
Deal found 10/28![Multiple Airlines logo]()
$996
This lastminute.com deal was found by Cheapflights users on 10/25. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:20 pm -
2 stops33h 50m
Tue 12/89:40 am -
1 stop11h 05m
Deal found 10/25![Virgin Atlantic logo]()
$1,060
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 pm -
3 stops21h 05m
Sat 11/2810:00 am -
3 stops30h 45m
Deal found 10/26![Multiple Airlines logo]()
$1,126
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:50 pm -
2 stops15h 15m
Sat 11/286:20 pm -
2 stops26h 25m
Deal found 10/26![Aer Lingus logo]()
$1,402
This British Airways deal was found by Cheapflights users on 10/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:45 pm -
1 stop14h 05m
Wed 11/1812:20 pm -
1 stop12h 35m
Deal found 10/29![British Airways logo]()
$1,497
This FlightHub deal was found by Cheapflights users on 10/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:05 pm -
1 stop32h 35m
Thu 12/316:30 am -
1 stop14h 10m
Deal found 10/25![British Airways logo]()
$1,587
This oojo deal was found by Cheapflights users on 10/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/165:15 pm -
2 stops15h 00m
Thu 12/317:00 am -
2 stops13h 45m
Deal found 10/25![Aer Lingus logo]()
$1,661
Best flights from Washington, D.C. to BelfastDiscover 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 October 30, 2026.
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 October 30, 2026.
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Mon 11/237:40 pm -
2 stops18h 30m
Tue 12/87:40 pm -
3 stops28h 25m
Deal found 10/25![Multiple Airlines logo]()
$807
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/135:40 pm -
1 stop10h 20m
Tue 4/209:40 am -
1 stop11h 10m
Deal found 10/30![British Airways logo]()
$980
This KLM deal was found by Cheapflights users on 10/25. 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.
Tue 4/136:30 pm -
2 stops17h 25m
Tue 4/205:25 pm -
1 stop27h 10m
Deal found 10/25![KLM logo]()
$1,012
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1212:00 pm -
2 stops16h 10m
Wed 1/209:40 am -
2 stops16h 29m
Deal found 10/28![Delta logo]()
$1,111
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/84:13 pm -
2 stops16h 52m
Wed 1/136:35 am -
2 stops17h 09m
Deal found 10/29![American Airlines logo]()
$1,148
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:40 pm -
2 stops21h 40m
Wed 12/166:25 am -
2 stops17h 05m
Deal found 10/26![Multiple Airlines logo]()
$827
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 12/117:40 pm -
3 stops17h 55m
Fri 12/186:00 am -
2 stops18h 05m
Deal found 10/27![Multiple Airlines logo]()
$960
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Tue 4/138:45 pm -
2 stops15h 35m
Tue 4/207:20 pm -
3 stops28h 40m
Deal found 10/25![Multiple Airlines logo]()
$963
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:40 pm -
2 stops20h 15m
Sat 12/197:05 pm -
3 stops30h 30m
Deal found 10/28![Multiple Airlines logo]()
$996
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/245:15 pm -
2 stops18h 50m
Sat 2/1312:30 pm -
2 stops32h 15m
Deal found 10/26![Multiple Airlines logo]()
$1,011
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 pm -
3 stops21h 05m
Sat 11/2810:00 am -
3 stops30h 45m
Deal found 10/26![Multiple Airlines logo]()
$1,126
Last-minute flights from Washington, D.C. to BelfastDiscover last-minute flight deals from Washington, D.C. to Belfast. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Belfast. Data last updated October 30, 2026 and is based on user searches.
This British Airways deal was found by Cheapflights users on 10/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:45 pm -
1 stop14h 05m
Wed 11/1812:20 pm -
1 stop12h 35m
Deal found 10/29![British Airways logo]()
$1,497
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Mon 11/237:40 pm -
2 stops18h 30m
Tue 12/87:40 pm -
3 stops28h 25m
Deal found 10/25![Multiple Airlines logo]()
$807
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Mon 11/237:40 pm -
3 stops19h 50m
Tue 12/86:20 pm -
3 stops29h 45m
Deal found 10/25![Multiple Airlines logo]()
$841
This lastminute.com deal was found by Cheapflights users on 10/25. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:20 pm -
2 stops33h 50m
Tue 12/89:40 am -
1 stop11h 05m
Deal found 10/25![Virgin Atlantic logo]()
$1,060
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 pm -
3 stops21h 05m
Sat 11/2810:00 am -
3 stops30h 45m
Deal found 10/26![Multiple Airlines logo]()
$1,126
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:50 pm -
2 stops15h 15m
Sat 11/286:20 pm -
2 stops26h 25m
Deal found 10/26![Aer Lingus logo]()
$1,402
One-way flights from Washington, D.C. to BelfastSearch for one-way flight options from Washington, D.C. to Belfast. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Washington, D.C. to Belfast. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:30 pm -
3 stops40h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:30 pm -
3 stops33h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$460
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:15 pm -
2 stops13h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Aer Lingus logo]()
$500
This BusinessClass deal was found by Cheapflights users on 10/27. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:44 pm -
2 stops18h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![British Airways logo]()
$1,312
This KLM deal was found by Cheapflights users on 10/27. 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.
Fri 11/136:15 pm -
1 stop9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![KLM logo]()
$1,753
Find flight deals from Washington, D.C. to Belfast
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 October 30, 2026.
Round-trip from | $807 (Mytrip) |
|---|---|
One-way from | $411 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. 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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Fri 11/13
10:30 pm-7:40 pm
3 stops40h 10m
Belfast Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$411
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BHD Belfast City
IADBHD
Washington, D.C. Dulles Intl
Fri 11/13
10:30 pm-1:25 pm
3 stops33h 55m
Belfast City
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$460
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BHD Belfast City
IADBHD
Washington, D.C. Dulles Intl
Fri 11/13
5:15 pm-12:00 pm
2 stops13h 45m
Belfast City
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$500
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Mon 11/23
7:40 pm-7:10 pm
2 stops18h 30m
Belfast Intl
Tue 12/8
7:40 pm-7:05 pm
3 stops28h 25m
$807
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Wed 12/9
7:40 pm-10:20 pm
2 stops21h 40m
Belfast Intl
Wed 12/16
6:25 am-6:30 pm
2 stops17h 05m
$827
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Fri 12/11
7:40 pm-6:35 pm
3 stops17h 55m
Belfast Intl
Fri 12/18
6:00 am-7:05 pm
2 stops18h 05m
$960
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Tue 4/13
8:45 pm-5:20 pm
2 stops15h 35m
Belfast Intl
Tue 4/20
7:20 pm-7:00 pm
3 stops28h 40m
$963
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BHD Belfast City
IADBHD
Washington, D.C. Dulles Intl
Tue 4/13
5:40 pm-9:00 am
1 stop10h 20m
Belfast City
Tue 4/20
9:40 am-3:50 pm
1 stop11h 10m
$980
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Sat 12/12
7:40 pm-8:55 pm
2 stops20h 15m
Belfast Intl
Sat 12/19
7:05 pm-8:35 pm
3 stops30h 30m
$996
Washington, D.C.Belfast
IAD Washington, D.C. Dulles Intl - BFS Belfast Intl
IADBFS
Washington, D.C. Dulles Intl
Sun 1/24
5:15 pm-5:05 pm
2 stops18h 50m
Belfast Intl
Sat 2/13
12:30 pm-3:45 pm
2 stops32h 15m
$1,011
Showing 1-10 of 15 resultsSorted by cheapest first
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.
WAS-BF1
IAD-BFS
IAD-BHD
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. to Belfast
WAS-BF1
IAD-BFS
IAD-BHD
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 October 30, 2026.
Peruse reviews from past customers who have flown with British Airways 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.
Overall
6.7
Comfort
6.8
Food
6.4
Crew
7.7
Entertainment
6.5
Boarding
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
IAH - LHR
Overall
6.7
Comfort
6.8
Food
6.4
Crew
7.7
Entertainment
6.5
Boarding
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
IAH - LHR
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.
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