Cheap flights from Seattle to Northern Ireland from $387
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Northern Ireland departing on 12/1. 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 Seattle to Northern Ireland
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
What is the cheapest day to depart on your flight to Northern Ireland?
The cheapest day to depart on your flight to Northern Ireland is on a Tuesday when prices can be found for as low as $724. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Northern Ireland for around $1,208.
What is the cheapest time of day to depart on your flight to Northern Ireland?
At noon is the cheapest time of day to fly from Seattle to Northern Ireland when you can find flight prices for as low as $794. Flying to Northern Ireland at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $1,000.
Cheap Seattle to Northern Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Northern Ireland
Best Price Found | $387 |
|---|---|
Fastest flight time | 13h 25m |
Direct flights | None |
Airports in Northern Ireland | 2 airports |
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Northern Ireland?
Prices for flights from Seattle/Tacoma Intl Airport to Northern Ireland are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Northern Ireland?
As of June 2025, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Northern Ireland.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The necessary travel and health documents for your Northern Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Seattle to Northern Ireland
Compare and see reviews for airlines that fly from Seattle to Northern Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $519 | Free Cancellation | Rating 6.6 7,028 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Northern Ireland?
Finding the right flight to Northern Ireland from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.
Can I find flights from Seattle to Northern Ireland with flexible booking policies on momondo?
Flights from Seattle to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Northern Ireland?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Northern Ireland.
I’m not ready to book a flight from Seattle to Northern Ireland right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.