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Cheap flights from Belfast to Seattle from £726

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SEA
31 Jul — 7 Aug1
1 adult
Wed 31/7
Wed 7/8

What is the cheapest time of day to fly from BFS to SEA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to Seattle as you normally would.

One-way flights to Seattle from Belfast

Search for one-way flight options from Belfast to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 1,000,913 searches. Data last updated 26 July 2024.
Wed 31/708:50BFS - SEA
3 stops40h 31mMultiple Airlines
Deal found 25/7£726
Wed 31/706:00BFS - SEA
2 stops37h 20mMultiple Airlines
Deal found 25/7£766
Wed 31/706:55BHD - SEA
3 stops23h 03mMultiple Airlines
Deal found 25/7£807
Wed 31/712:10BHD - SEA
2 stops16h 25mMultiple Airlines
Deal found 25/7£931
Wed 31/718:15BHD - SEA
1 stop31h 30mAer Lingus
Deal found 25/7£1,210

What is the cheapest day to fly from Belfast to Seattle?

Use this chart to determine the cheapest time to fly return from Belfast to Seattle. Price data was last updated on 21 July 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Belfast to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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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 26 July 2024.
Aer Lingus
7.2
Good
1,198 reviews
Check prices

Entertainment

6.9

Comfort

7.1

Food

6.5

Overall

7.2

Boarding

7.3

Crew

8.0

Reviews

1 / 10

It was good, despite a significant delay which almost made me miss my connecting flight.

Aer Lingus
7.2
Good
1,198 reviews
Aer Lingus
7.2
Good
1,198 reviews
Check prices

Entertainment

6.9

Comfort

7.1

Food

6.5

Overall

7.2

Boarding

7.3

Crew

8.0

Reviews

1 / 10

It was good, despite a significant delay which almost made me miss my connecting flight.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Belfast?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Belfast. On average, Seattle/Tacoma Intl has 0 inbound flights from Belfast per day from 1 airline. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What does BFS to SEA mean?

    Great question - BFS to SEA just means Belfast Intl Airport to Seattle/Tacoma Intl Airport. Now you’ll know what these unique codes when you look for flights! Belfast City Airport (BHD), Glasgow Prestwick Airport (PIK), Londonderry Eglinton Airport (LDY), Isle of Islay Glenegedale Airport (ILY), Campbeltown Machrihanish Airport (CAL) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Belfast to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Belfast to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Belfast to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Belfast to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Belfast to Seattle that include hotel bookings?

    Yes. In addition to deals on Belfast to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Seattle.

  • Can I find deals for business class flights from Belfast to Seattle?

    Yes. Cheapflights offers flight deals from Belfast to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Belfast to Seattle that allow pets onboard?

    Many airlines flying from Belfast to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Belfast to Seattle?

    Yes, you can often find last-minute deals on Belfast to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • What is the cheapest month to book a flight from Belfast to Seattle?

    Currently, December is the cheapest month in which you can book a flight from Belfast to Seattle (average of £576). Flying from Belfast to Seattle in July is currently the most expensive (average of £823). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Seattle
See prices for flight routes from nearby airports that may be better suited for you.

Belfast Intl to Seattle flights
Belfast City to Seattle flights

Top airline flying from Belfast to Seattle

Discover the top airline that operate flights from Belfast to Seattle. 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 1,000,913 searches. Data last updated 26 July 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£546Average£626FlexibilityNo cancel feeOn-time70%
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Search flights from Belfast to Seattle by cabin class

Find flights from Belfast to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Belfast to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to Seattle 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 Seattle with no change fees?

Certainly. Search results for flights to Seattle from Belfast shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Belfast to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Belfast to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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