Flights from Seattle to Belfast, United Kingdom

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Did you mean flights from Belfast to Seattle?

Seattle to Belfast Last modified: Dec 13, 2019 2:05 -05:00

We've scanned 48,195,047,545 round trip itineraries and found the cheapest flights to Belfast. British Airways & American frequently offer the best deals to Belfast flights, or select your preferred carrier below to see the cheapest days to fly.

British Airways
Wed 2/19
1 stop
Wed 2/26
1 stop
Tue 3/17
2 stops
Mon 4/6
2 stops
Tue 3/17
2 stops
Mon 4/6
2 stops
Wed 2/19
2 stops
Wed 2/26
2 stops
Major Airlines
Sun 3/1
1 stop
Sun 3/8
1 stop
Tue 3/10
2 stops
Mon 3/16
2 stops

How Much is a Flight from Seattle to Belfast?

We have collected flight cost data from across the web for travel from Seattle to Belfast, and have found the average flight price for this trip to be $969.

Where To Buy Cheap Flights from Seattle to Belfast?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Seattle to Belfast based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from Seattle to Belfast?

The chart below shows up-to-date information regarding how far in advance to book your flight from Seattle to Belfast.

Cheapest Day To Fly from Seattle to Belfast

We've examined 57,595,778,181 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Seattle to Belfast is Sunday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Compare Flight Prices from Seattle to Belfast by Month

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for Seattle to Belfast flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
December Seattle Belfast British Airways 12/27/19 1/9/20 2 $741
January Seattle Belfast American 1/20/20 1/27/20 1 $603
February Seattle Belfast British Airways 2/19/20 2/26/20 1 $617
March Seattle Belfast Major Airlines 3/1/20 3/8/20 1 $614
April Seattle Belfast American 4/13/20 4/22/20 1 $615
May Seattle Belfast American 5/23/20 6/1/20 2 $645
June Seattle Belfast American 6/30/20 7/7/20 2 $919
July Seattle Belfast KLM 7/2/20 7/16/20 2 $1,142

Cheap Last Minute Flights from Seattle to Belfast

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from Seattle to Belfast. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

24 25 26 27 28 29 30
1 2 3 4 5 6 7
$1,218 $1,849
8 9 10 11 12 13 14
$1,849 $688 $722
15 16 17 18 19 20 21
$722 $688

Connecting Flights vs Direct Flights from Seattle to Belfast

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Seattle to Belfast is $746.

The average price for direct flights from Seattle to Belfast is not available.

One Way Flights vs Round Trip Flights from Seattle to Belfast

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Seattle to Belfast. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Seattle to Belfast is $1,311.

The average price for round trip flights from Seattle to Belfast is $746.

Seattle to Belfast Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from Seattle to Belfast?
Answer: London, GB

Airlines in Seattle flying to Belfast Last modified: Dec 13, 2019 2:05 -05:00Number of routes searched: 6Number of itineraries searched: 4,007

Wondering which airlines fly out of Seattle to Belfast? We've gathered the average price of Seattle airlines with flights to Belfast. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

Seattle to Belfast
Airline Connections Mon Tue Wed Thu Fri Sat Sun
British Airways LHR
Major Airlines MCO
Major Airlines ATL / MCO
Aer Lingus DUB / LHR

Seattle to Belfast Airports

These are the major commercial airports we're currently monitoring in Seattle and Belfast. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

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Cheap Flights from Seattle to Belfast