Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Northern Ireland to Seattle
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Northern Ireland to Seattle
All round-trip flight deals to Seattle
KLM flights from Northern Ireland to Seattle
Our best KLM deals on Northern Ireland to Seattle flight tickets
Delta flights from Northern Ireland to Seattle
Our best Delta deals on Northern Ireland to Seattle flight tickets
See travel insights to Seattle from
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
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Northern Ireland is on a Sunday. momondo users have found tickets for Sunday departures for as low as $708. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Northern Ireland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $708.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Northern Ireland at noon is the least expensive time of day to depart. momondo users have found prices as low as $708 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $1,060. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
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 are updated daily.
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 you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from Northern Ireland to Seattle?
Finding the right flight to Seattle from Northern Ireland 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 Seattle quick and easy, saving you time and money.
Can I find flights from Northern Ireland to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Northern Ireland to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from Northern Ireland to Seattle?
Once all potential Northern Ireland to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Northern Ireland to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Northern Ireland and alert you when they change.