Cheap flights from Belfast City Airport to Seattle from £517
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast City to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Belfast City (BHD) to Seattle (SEA). 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 4 July 2025.
Find flight deals from Belfast City to Seattle
Cheapest flights from Belfast City to SeattleExplore the most affordable flight options available from Belfast City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Explore the most affordable flight options available from Belfast City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast City to Seattle 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 4 July 2025.
Use the filters below to find and compare flights from Belfast City Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Tue 30/9
20:20-11:35
1 stop23h 15m
Seattle/Tacoma Intl
Thu 16/10
20:20-18:45
1 stop14h 25m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Tue 30/9
20:20-20:09
2 stops31h 49m
Seattle/Tacoma Intl
Thu 16/10
13:30-13:15
1 stop15h 45m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Mon 14/7
17:25-15:50
1 stop30h 25m
Seattle/Tacoma Intl
Mon 21/7
17:35-21:15
1 stop19h 40m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Mon 14/7
06:40-10:34
2 stops35h 54m
Seattle/Tacoma Intl
Mon 21/7
20:20-17:30
1 stop13h 10m
BelfastSeattle
BHD - SEA
BHDSEA
Belfast City
Wed 30/7
06:55-21:43
2 stops22h 48m
Best time to book a flight from Belfast City to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Belfast City with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Belfast City Airport to Seattle
What is the cheapest time of day to fly from BHD to SEA?
Find hourly flight availability from Belfast City to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast City Airport to Seattle as you normally would.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 4 July 2025.
See what other customers who have flown with Delta, American Airlines, andBritish Airways from Belfast City Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Crew
Food
Comfort
Boarding
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Food
Comfort
Boarding
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Food
Comfort
Boarding
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Food
Comfort
Boarding
Overall
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Belfast City to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Belfast City Airport?
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Alternative routes for Belfast City to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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How does Cheapflights help users find flights from Belfast City to Seattle?
Cheapflights helps you search for flights from Belfast City to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Belfast City to Seattle?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast City to Seattle for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Belfast City to Seattle with no change fees?
Yes! Cheapflights helps users easily find flights from Belfast City to Seattle with no change fees.
Can Cheapflights notify me if prices for flights from Belfast City to Seattle become cheaper?
Yes! Start tracking prices for Belfast City to Seattle 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.