Cheap flights from Belfast City Airport to Washington from £550
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast City to Washington
Keep the following information in mind while searching for Belfast City to Washington flight deals. Data was last updated 15 August 2025.
Find flight deals from Belfast City to Washington
Cheapest flights from Belfast City to WashingtonExplore the most affordable flight options available from Belfast City to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.
Explore the most affordable flight options available from Belfast City to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Belfast City Airport to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Mon 15/9
06:40-11:35
1 stop12h 55m
Seattle/Tacoma Intl
Wed 24/9
13:30-11:55
1 stop14h 25m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Tue 9/9
09:35-18:20
1 stop16h 45m
Seattle/Tacoma Intl
Tue 16/9
13:30-10:35
1 stop13h 05m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Tue 9/9
06:30-19:00
2 stops20h 30m
Seattle/Tacoma Intl
Tue 16/9
17:40-21:15
1 stop19h 35m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Mon 15/9
06:30-16:59
2 stops18h 29m
Seattle/Tacoma Intl
Wed 24/9
10:25-16:55
2 stops22h 30m
Best time to book a flight from Belfast City to Washington
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Alternative routes for Belfast City to Washington
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Can Cheapflights find flights from Belfast City to Washington with no change fees?
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Can Cheapflights notify me if prices for flights from Belfast City to Washington become cheaper?
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