Q: How much does it cost to fly round-trip from Seattle to Belfast Intl Airport?

Airfare is below average for this route at the moment. Seattle to Belfast Intl Airport flights typically cost between $880 and $1,494 in September. The cheapest round-trip price found within the last 3 days was $707 on Multiple Airlines (Sep 12-Sep 19).

Question 1

How much does it cost to fly round-trip from Seattle to Belfast Intl Airport?

Accepted Answer

Airfare is below average for this route at the moment.Seattle to Belfast Intl Airport flights typically cost between $880 and $1,494 in September.
The cheapest round-trip price found within the last 3 days was $707 on Multiple Airlines (Sep 12-Sep 19).

Question 2

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

Accepted Answer

Currently, February is the cheapest month in which you can book a flight from Seattle to Belfast Intl Airport (average of $657). Flying from Seattle to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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.

Question 3

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

Accepted Answer

Travelers seeking maximum savings on their Seattle to Belfast Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in Belfast Intl Airport ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast Intl Airport when rainfall is around 2.0 in.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to Belfast Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Question 6

What is the cheapest day to fly round-trip from Seattle to Belfast Intl Airport?

Accepted Answer

Monday is generally a great day to depart. Flying on this day could help you save up to 66%.

Question 7

What is the cheapest month to fly from Seattle to Belfast Intl Airport?

Accepted Answer

Our data shows that March tends to be the cheapest month to fly to Belfast Intl Airport from Seattle. Users have commonly found prices around $905 for the month, but tickets can be as low as $707. Due to multiple factors, prepare for potentially higher prices in July.

Question 8

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

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Seattle to Belfast Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at noon.

Question 9

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

Accepted Answer

Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Belfast Intl from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Belfast Intl should be relatively easy as there are 0 daily outbound flights to Belfast Intl from 1 airline.

Question 10

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

Accepted Answer

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

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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

Round-trip from	$707 (Trip.com)
One-way from	$432 (Kiwi.com)
Popular in	July
Cheapest in	March
Average price	$1,145

$432+ Cheap flights from Seattle (SEA) to Belfast Intl (BFS)

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Seattle to Belfast IntlExplore the most affordable flight options available from Seattle to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

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How much does it cost to fly round-trip from Seattle to Belfast Intl Airport?

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Find useful and relevant information for your journey from Seattle to Belfast Intl. 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 from for flights from Seattle to Belfast Intl?

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

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

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

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

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Cheapest flights from Seattle to Belfast Intl
Explore the most affordable flight options available from Seattle to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.