Cheap flights from Seattle to Belfast City

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How much should you expect to spend for a flight from Seattle to Belfast City?

Flight prices from Seattle to Belfast change depending on demand and time of booking.

Pick a travel date to see today’s available fares.

Studies show that flying midweek — like on a Tuesday or Wednesday — can be cheaper than weekend flights. Still, airfares change frequently, so check updated prices on Jetcost.

Which airports serve Seattle and Belfast?

When planning a trip of about 4475 mi, it's a good idea to check flights from surrounding airports too.

  • Airports in Seattle: Seattle is connected to 2 airports - Boeing Field, Lake Union.
  • Airports in Belfast: The only active airport in Belfast is Belfast - City.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Flights from Seattle - Tacoma to Belfast - City

Plan smarter: flights from Seattle to Belfast City

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to United Kingdom also checked out: Edinburgh, Glasgow, London, Manchester, Newquay.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Seattle to Belfast City.

How much does an airline ticket from Seattle to Belfast City cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Seattle to Belfast City.

How far is Seattle from Belfast?

Seattle is about 4475 mi from Belfast.

What are the airports in Belfast?

Belfast has one airport: Belfast - City.

What are the airports in Seattle?

Seattle has 2 airports: Boeing Field, Lake Union.

What are the most popular cities in United Kingdom?

The most popular cities in United Kingdom according to our users' searches are: Edinburgh, Glasgow, London, Manchester, Newquay.

When should I book a flight from Seattle to Belfast?

The best time to book a flight from Seattle to Belfast is 2 months in advance, while the worst time is 12 weeks in advance.

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

This information is not available at the moment.

What is the most expensive month to fly from Seattle to Belfast?

This information is not available at the moment.

What is the best day of the week to fly from Seattle to Belfast?

This information is not available at the moment.