Cheap flights from Belfast to Washington from £597
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast to Washington
Keep the following information in mind while searching for Belfast to Washington flight deals. Data was last updated 31 March 2025.
Find flight deals from Belfast to Washington
Cheapest flights from Belfast to WashingtonExplore the most affordable flight options available from Belfast to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.
Explore the most affordable flight options available from Belfast to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast to Washington 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 31 March 2025.
Use the filters below to find and compare flights from Belfast to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Thu 8/5
06:35-18:20
1 stop19h 45m
Seattle/Tacoma Intl
Thu 22/5
13:30-11:10
1 stop13h 40m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Thu 8/5
06:35-16:00
2 stops17h 25m
Seattle/Tacoma Intl
Thu 29/5
20:20-20:45
1 stop16h 25m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Thu 8/5
06:30-17:50
2 stops19h 20m
Seattle/Tacoma Intl
Thu 29/5
11:15-16:55
2 stops21h 40m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Fri 9/5
06:30-14:31
2 stops16h 01m
Seattle/Tacoma Intl
Fri 30/5
18:07-21:15
1 stop19h 08m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Fri 9/5
06:30-15:57
1 stop17h 27m
Seattle/Tacoma Intl
Fri 30/5
13:55-16:55
1 stop19h 00m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Wed 30/7
09:50-16:59
2 stops15h 09m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Wed 30/7
06:50-11:35
1 stop12h 45m
Best time to book a flight from Belfast to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Belfast with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Belfast to Washington
What is the cheapest time of day to fly from BFS to WA?
Find hourly flight availability from Belfast to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 March 2025.
When flying from Belfast to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Washington by month
Plan your trip to Washington by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.
Temperature in Washington by month
Plan your trip to Washington by taking into account the average temperature totals by month.
If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated 31 March 2025.
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Entertainment
Comfort
Crew
Food
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Belfast to Washington. 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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Alternative routes for Belfast to Washington
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Belfast to Washington
Discover the top airline that operate flights from Belfast to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 March 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Belfast to Washington?
When you search for this flight from Belfast to Washington, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Belfast to Washington?
Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to Washington for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Belfast to Washington with no change fees?
Yes, we can. To see specific flights from Belfast to Washington with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Belfast to Washington become cheaper?
Yes! Start tracking prices for Belfast to Washington flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.