Cheap flights from Seattle to Shannon from $724
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Shannon departing on 4/5. 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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Fly from
Fly to
Route
Depart
Return
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Mon 4/5
6:50 am-10:15 am
1 stop19h 25m
Shannon
Wed 4/28
12:30 pm-9:05 pm
1 stop16h 35m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Mon 4/5
7:00 am-10:15 am
2 stops19h 15m
Shannon
Wed 4/28
12:30 pm-12:33 am
2 stops20h 03m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Mon 4/5
10:10 am-4:10 pm
3 stops22h 00m
Shannon
Wed 4/28
7:30 am-9:58 pm
2 stops22h 28m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Sat 3/20
7:00 pm-11:30 am
2 stops57h 30m
Shannon
Mon 3/29
9:15 pm-9:18 am
2 stops44h 03m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Mon 4/5
10:10 am-4:10 pm
3 stops22h 00m
Shannon
Wed 4/28
7:30 am-6:23 pm
3 stops18h 53m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Thu 10/22
7:00 pm-12:30 pm
2 stops57h 30m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Thu 10/22
7:00 pm-3:50 pm
3 stops36h 50m
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Thu 10/22
10:48 pm-10:15 am
1 stop27h 27m
See travel insights to Shannon from
How to get the cheapest flight ticket from Seattle to Shannon, Clare
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
Which airport is the most popular layover for flights between Seattle and Shannon, Clare?
Newark (EWR) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Seattle to Shannon, Clare?
Flights via London (LHR) offer the lowest average round-trip price of $468.
Which layover airport has the shortest travel time from Seattle to Shannon, Clare?
Flights connecting via Newark (EWR) have the shortest average one-way travel time: 13h 25m.
Which layover airport has the shortest connection time from Seattle to Shannon, Clare?
Newark (EWR) has the shortest average layover time for this route: 2h 37m.
When to book flights from Seattle to Shannon, Clare
Cheap Seattle to Shannon, Clare (SEA to SNN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Shannon, Clare
Frequently asked questions about flying from Seattle to Shannon, Clare
How far is Seattle/Tacoma Intl to Shannon by plane?
The straight-line distance from Seattle/Tacoma Intl to Shannon is 4478.2 mi. By plane, this route typically takes 18h 15m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Shannon Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Shannon Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Shannon Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Shannon Airport is 1 as of October 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Shannon 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 Seattle/Tacoma Intl Airport to Shannon Airport.
What documentation or ID do you need to fly to Shannon Airport?
The travel and health documents you'll need for your trip to Shannon 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 Shannon Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Shannon, Clare?
Based on momondo bookings for flights between Seattle and Shannon, Clare, the leading airline is United Airlines, making up 100% of the total bookings.
Best airlines flying from Seattle to Shannon, Clare
Compare and see reviews for airlines that fly from Seattle to Shannon, Clare with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $592 | Free Cancellation | Rating 7.4 10,316 reviews |
Traveling to a place near Shannon?
Book flights to Shannon if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Shannon?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Shannon for you.
Can I find flights from Seattle to Shannon with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Shannon from Seattle with this policy.
How can momondo help me find flights from Seattle to Shannon?
Once you have performed a search for Seattle to Shannon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Seattle to Shannon right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to Shannon 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.