Flight tickets from Seattle to Belfast
Compare Seattle to Belfast flight deals
Find the cheapest month or even day of the year to fly to Belfast
Book the best Belfast fare with no extra fees
Flight deals from Seattle to Belfast
Looking for a cheap last-minute deal or the best return flight from Seattle to Belfast? Find the lowest prices on one-way and return tickets right here.Find the cheapest month to fly from Seattle to Belfast
We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Belfast flights are currently cheapest in December.Alternative Seattle to Belfast routes
Looking for the cheapest, fastest or easiest route from Seattle to Belfast? You could fly into the following airports instead.Finding cheap flights from Seattle to Belfast: Frequently asked questions
How to find cheap flights to Belfast (BELF) from Seattle (SEAA) in 2025
Looking for cheap tickets from Seattle to Belfast? Return tickets start from ₹ 55,432 and one-way flights to Belfast from Seattle start from ₹ 37,505
Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.
- Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Seattle to Belfast. And with us there are no hidden fees - what you see is what you pay.
- Compare flight deals to Belfast from Seattle from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Belfast start from ₹ 37,505 one-way.
- Flex your dates to find the best SEAA-BELF ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Belfast from Seattle.
- Set up a Price Alert. You can easily track the fare of your cheap Seattle-Belfast flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
- Find the cheapest Business class flights from Seattle and Belfast. We scour the internet for the best Business, Premium Economy and First Class flight fares to Belfast, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
- Include nearby airports in your search. Widen your search for Seattle to Belfast flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
- Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Seattle and Belfast whenever you want.
Combine your flight to Belfast from Seattle with hotels and car hire
Once you've secured your cheap flight ticket from Seattle to Belfast, discover the best prices and exclusive rates for hotels in Belfast or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.
Plan the rest of your trip from Seattle to Belfast
Prices shown on this page are estimated lowest prices only. Found in the last 45 days.