Cheap flights from Northern Ireland to Seattle from £517
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Seattle departing on 30/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Northern Ireland to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Cheap Northern Ireland to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Seattle
When did momondo last update prices for flights from Northern Ireland to Seattle/Tacoma Intl Airport?
Prices for flights from Northern Ireland to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Northern Ireland to Seattle/Tacoma Intl Airport?
As of July 2025, there is 1 operator available to choose from for flights from Northern Ireland to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Northern Ireland to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Northern Ireland to Seattle
Compare and see reviews for airlines that fly from Northern Ireland to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £431 | Free Cancellation | Rating 6.6 7,093 reviews |
Travelling to a place near Seattle?
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Why should I use momondo to find a flight deal from Northern Ireland to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Northern Ireland to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Northern Ireland to Seattle with flexible booking policies on momondo?
momondo does allow users to show only those flights to Seattle from Northern Ireland which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Northern Ireland to Seattle?
momondo helps you find the best flight between Northern Ireland and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Northern Ireland to Seattle right now. Can momondo alert me if prices change?
Price alerts on flights to Seattle from Northern Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.