Cheap Flights from Belfast to Seattle from £408️ (BFS-SEA)

App

Help

GBP

Search Bookings

Flights from Belfast to Seattle

Hotels in Seattle

Worldwide Coverage

Flights to over 5,000 cities

One-stop Service Guarantee

Price guaranteed upon confirmed payment, booking guaranteed once tickets issued

Secure Payment

Convenient & reliable booking and payment system

Latest Flight Deals from Belfast to Seattle

Book one-way or return flights from Belfast to Seattle from as little as £408. Choose from the popular airlines below and book your flight today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Belfast to Seattle? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Belfast to Seattle. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Belfast to Seattle

View airlines operating flights from Belfast to Seattle. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

easyJet

From £408

Aer Lingus

From £596

British Airways

From £651

Virgin Atlantic

From £1,266

KLM Royal Dutch Airlines

From £1,288

Lufthansa

From £1,338

Delta Air Lines

From £1,397

Iberia

From £1,409

ANA airlines

Find more flights and airlines

Alternative Routes from Belfast to Seattle

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Belfast to Seattle.

Cheapest
BFS
14:45
30h 25m
1 transfer
SEA
13:10
Belfast International Airport - Seattle-Tacoma International Airport
Wed, May 22easyJet
£408
BHD
16:40
26h 40m
2 transfer
SEA
11:20
George Best Belfast City Airport - Seattle-Tacoma International Airport
Sun, May 26easyJet
£556
BHD
16:40
26h 40m
2 transfer
SEA
11:20
George Best Belfast City Airport - Seattle-Tacoma International Airport
Sun, May 26easyJet
£556
Find More Flights

How do I find the cheapest flights?

When are flight tickets from Belfast (BFS) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from Belfast to Seattle based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Belfast (BFS) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around £1,107.
What is the transportation method from the main airport to downtown in Seattle?
- The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
How many airports in Seattle (SEA)?
There are 3 airport(s) in Seattle (SEA): King County (Boeing Field) International Airport, Lake Union Sea Plane Base and Seattle-Tacoma International Airport.

How to find a cheap flight from Belfast to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Belfast to Seattle. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Flight Information from Belfast to Seattle

Cheapest direct flight price	£407
Cheapest month	January
Peak season for travel	November
Flight distance	7,202.3km
Popular airline	British Airways

Flights to Seattle from Belfast

Tick another destination off your bucket list with cheap flights from Belfast to Seattle. From its history to its culture and myth, it’s no surprise that tickets from Belfast to Seattle are so popular. Easy to get to, travel from Belfast to Seattle takes around 9 hours 55 mins, making it a convenient destination for a short city break. Although with plenty to offer, many people fly from Belfast to Seattle for a longer getaway, too. And with prices starting from just £344, there’s never been a better time to experience this exciting destination. Ready? Compare flights and find the best deals at Trip.com.

How to find cheap flights from Belfast to Seattle

There are a range of ways you can find cheap flights from Belfast to Seattle. Being flexible with travel dates and times, setting your browser to incognito when searching for flights, keeping an eye out for any discounts on offer and choosing to fly with budget airlines are just a few of our top tips.

Airlines that fly from Belfast to Seattle

You can book tickets from Belfast to Seattle with airlines including British Airways, American Airlines.

Flight distance & Flight time from Belfast to Seattle

Located 4467 miles from Belfast, you can fly to Seattle in around 9 hours 55 mins.

Departure from Belfast Airport to Seattle

Operating 7 days a week with services running every 15 to 20 minutes, the Airport Express 300 service is the most convenient way to get from Belfast city centre to Belfast International Airport. The journey takes approximately 30 to 40 minutes, with tickets costing £8.50 one way. You can also get a taxi, which will take around 30 minutes and cost approximately £38.