SEA - BHD

£238 Find Cheap Flights from Seattle to Belfast – Compare and Save

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Everything you should know

Cheapest return flight
£603
Typical prices: £695-£883
KLM
Fri 21/9Sat 6/10
SEA - BHD • 1 stop
Cheapest one-way flight
£238
Typical prices: £313-£473
British Airways
Fri 26/1
SEA - BHD • 1 stop
Direct flights
Not available
There are currently no direct flights between Seattle and Belfast City Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 11% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
London Heathrow (LHR)
Cheapest • Avg £768 (return)
Amsterdam Schiphol (AMS)
Shortest trip • 14h 33m (one-way)
Insights
Insights
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We hope you enjoy your trip to Belfast City Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Belfast City (SEA-BHD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Belfast City

Mon, 21 Sep - Tue, 6 Oct
KLM Logo
17:45 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
15h 10m1 stop Amsterdam Schiphol
KLM Logo
09:50 - 23:04BHD  Belfast City-SEA Seattle/Tacoma Intl
21h 14m2 stops Amsterdam Schiphol New York John F Kennedy Intl
£603KLM
Mon, 28 Sep - Mon, 12 Oct
Delta Logo
22:40 - 09:20SEA  Seattle/Tacoma Intl-BHD Belfast City
26h 40m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
17:30 - 11:52BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 22m1 stop Amsterdam Schiphol
£607Delta
Mon, 21 Sep - Tue, 6 Oct
Delta Logo
13:50 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
19h 05m1 stop Amsterdam Schiphol
Delta Logo
09:50 - 11:52BHD  Belfast City-SEA Seattle/Tacoma Intl
34h 02m1 stop Amsterdam Schiphol
£608Delta
Mon, 28 Sep - Mon, 12 Oct
Delta Logo
22:40 - 09:20SEA  Seattle/Tacoma Intl-BHD Belfast City
26h 40m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
17:30 - 23:04BHD  Belfast City-SEA Seattle/Tacoma Intl
37h 34m2 stops Amsterdam Schiphol New York John F Kennedy Intl
£611Delta
Mon, 21 Sep - Tue, 6 Oct
Delta Logo
17:45 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
15h 10m1 stop Amsterdam Schiphol
Delta Logo
09:50 - 10:36BHD  Belfast City-SEA Seattle/Tacoma Intl
32h 46m2 stops Amsterdam Schiphol New York John F Kennedy Intl
£613Delta
Mon, 21 Sep - Tue, 6 Oct
Delta Logo
07:15 - 09:20SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 05m2 stops Chicago O'Hare Intl Amsterdam Schiphol
Delta Logo
09:50 - 23:04BHD  Belfast City-SEA Seattle/Tacoma Intl
21h 14m2 stops Amsterdam Schiphol New York John F Kennedy Intl
£618Delta
Mon, 5 Oct - Thu, 22 Oct
KLM Logo
17:45 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
15h 10m1 stop Amsterdam Schiphol
KLM Logo
17:30 - 11:52BHD  Belfast City-SEA Seattle/Tacoma Intl
26h 22m1 stop Amsterdam Schiphol
£630KLM
Wed, 9 Dec - Mon, 14 Dec
Multiple Airlines Logo
14:35 - 16:50SEA  Seattle/Tacoma Intl-BHD Belfast City
18h 15m1 stop Amsterdam Schiphol
Multiple Airlines Logo
09:40 - 22:04BHD  Belfast City-SEA Seattle/Tacoma Intl
20h 24m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
£652Multiple Airlines
Wed, 9 Dec - Mon, 14 Dec
KLM Logo
13:45 - 16:50SEA  Seattle/Tacoma Intl-BHD Belfast City
19h 05m2 stops Minneapolis St Paul Amsterdam Schiphol
KLM Logo
09:40 - 22:04BHD  Belfast City-SEA Seattle/Tacoma Intl
20h 24m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
£655KLM
Wed, 9 Dec - Mon, 14 Dec
British Airways Logo
18:45 - 16:55SEA  Seattle/Tacoma Intl-BHD Belfast City
14h 10m1 stop London Heathrow
British Airways Logo
19:40 - 11:25BHD  Belfast City-SEA Seattle/Tacoma Intl
23h 45m1 stop London Heathrow
£665British Airways
Booking Insights

Price, demand, and travel trends for Seattle to Belfast City Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to Belfast City Airport with more confidence.

How much is a return flight from Seattle to Belfast City Airport?

Return flights from Seattle to Belfast City Airport start at £603. Prices are below average for this route right now, with typical return fares ranging from £695 to £883. The lowest price found in the past 5 days was £603 on KLM.

What's the cheapest day of the week to fly from Seattle to Belfast City Airport?

Monday is the cheapest day of the week to fly from Seattle to Belfast City Airport and is 23% cheaper than the average day. Wednesday is the most expensive day with flight prices 50% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Seattle to Belfast City Airport flights

Low season

November

Cheapest flight

£238
Most popular time to fly (5% more expensive on average)
Flights from Seattle to Belfast City Airport

When to book flights from Seattle to Belfast City

Are your dates flexible? Find out the best times to travel from Seattle to Belfast City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seattle to Belfast City Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from Seattle to Belfast City Airport?

    Flights from Seattle to Belfast City Airport usually depart from Seattle/Tacoma Intl (SEA) and arrive at Belfast City (BHD).

  • Which airports do connecting flights from Seattle to Belfast City Airport pass through?

    Connecting flights from Seattle to Belfast City Airport most commonly pass through:

    • London Heathrow (LHR) – 83% of one-stop connections
    • Amsterdam Schiphol (AMS) – 17% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from Seattle to Belfast City Airport?

    Yes. Being flexible with your travel dates can save you up to 49% on the Seattle to Belfast City Airport route. Monday is the cheapest departure day at £608 return on average, while Wednesday is the most expensive at £1,179, a difference of £571. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Belfast City Airport?

    Some of the most popular sights in Belfast City Airport are Cathedral Quarter, Waterfront Hall, and Queen's University of Belfast. These are among the most viewed places in Belfast City Airport on KAYAK.

  • How long is a flight from Seattle to Belfast City Airport?

    A direct flight from Seattle to Belfast City Airport takes 0h 00m, covering 4,472 miles.

  • Do I need a passport to fly from Seattle to Belfast City Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Seattle to Belfast City Airport looking right now?

    One-way fares from Seattle to Belfast City Airport are currently lower than usual. Average one-way flight prices are about £238, which is 49% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from Seattle to Belfast City Airport?

    Flying via London Heathrow (LHR) gives the shortest average 1-stop total travel time of 14h 05m, compared to 14h 33m via Amsterdam Schiphol (AMS).

  • What is the time difference between Seattle and Belfast City Airport?

    Belfast City Airport is 8 hours ahead of Seattle (British Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Belfast City Airport (BHD)?

    Belfast City Airport (BHD) hosts 5 major car hire companies, with daily rates starting from around £9 for economy cars. Top options include:
    • Budget
    • Sixt
    • Enterprise Rent-A-Car
    • Hertz
    • Avis

  • How much should I expect to pay for a Seattle to Belfast City Airport flight?

    Return flights from Seattle to Belfast City Airport range from £695 to £883, with an average of £781 over the past 12 months. Anything below £695 counts as a good deal.

Your guide to booking Seattle to Belfast City Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure instead of Wednesday. On this route, Monday flights average £608 – about £571 less than Wednesday (48% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Belfast City Airport trip for September. Fares historically average £695 return in that month – typically £476 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Belfast City Airport.
    - Titanic Hotel Belfast
    - Premier Inn Belfast Titanic Quarter
    - Park Avenue

More options for your flight from Seattle to Belfast City

Complete your trip to Belfast with a hotel stay or car hire

Car hire in Belfast
Hotels in Belfast
Holidays in Belfast