What’s the cost of a flight from Seattle to Belfast City?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Seattle and Belfast.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Flights between Seattle and Belfast: which airports can you choose?

The distance between Seattle and Belfast is about 4475 mi. Checking alternative airports can help lower the total cost of your trip.

• Airports in Seattle: Seattle is served by 2 airports - Boeing Field, Lake Union.
• Airports in Belfast: Currently, the only available airport in Belfast is Belfast - City.

Choosing airports with fast connections to the city center can cut down total travel time. You can compare all flights from Seattle airports to find the best option.

Filter and compare flights from Seattle to Belfast City

Jetcost helps you manage complex searches with simple filters. Sort by airline, duration, number of stops, or even time windows for outbound and return flights.

Other popular destinations

Want more ideas for your trip to United Kingdom? Check these: Edinburgh, Glasgow, London, Manchester, Newquay.

Advanced filters help you skip long layovers or inconvenient times. The “airlines” filter is handy if you want to collect miles or prefer a certain onboard experience.