Find Cheap Flights from Seattle/Tacoma Intl to Shannon (SEA - SNN)

Search hundreds of travel sites at once for deals on flights to Shannon

Thu 11/23
Thu 11/30
Any month
Compare vs. KAYAK |

Good to Know

Average Price:
$1277
(avg. price over the last 2 weeks)
Good Deal:
$909
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Shannon

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $908 or less.
The cheapest flight from Seattle/Tacoma Intl to Shannon was found 63 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 1% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seattle/Tacoma Intl to Shannon Flights

How long does a flight from Seattle/Tacoma Intl to Shannon take?
An average nonstop flight takes 14h 05m, covering a distance of 4488 miles.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Shannon?
In the past 3 days, the cheapest round-trip tickets were found on Aer Lingus ($610), Multiple Airlines ($615) and British Airways ($633).
Do I need a passport to fly between Seattle/Tacoma Intl and Shannon?
Yes.

Book cheap flights from Seattle/Tacoma Intl to Shannon (round-trip)

Airports
Origin
Seattle
$610
only
$610
Destination
Shannon
$610
only
$610
Thu, Jan 11
SEA
SNN
22h 31m
Sun, Jan 14
SNN
SEA
18h 49m
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 3742 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
BRU
DUB
Good 6.6

I loved that the trip was relatively short and uneventful. The food was adequate, but nothing to brag about and very little. The hostesses were nice,better than last time. The price was right on, mostly for a trip of under 15 hours...when usually it is 20h with a stopover.

On the way over, I couldnt get water. The trolley didn't come by, and I had to "leg-over" my sleeping neighbor to get a glass of water fo the back reserve. The TV wasn't working; the remote was dead. As it was a night flight, it didn't matter tt much for me, but it should've been working. The passengers could have been spread out better as there were completely empty middle rows. It would have helped with comfort.

DUB
LAX
Good 6.0

Crew was responsive and kind if something was requested but service without asking is no longer part of a transatlantic experience.

If you're on the Airbus transatlantic flight, the last section nis so noisy I'm surprised it's even a legal noise level. You can't even hear the entertainment it's so loud. Had to buy an upgraded economy just to be able to endure the long flight. It would be nice to see the cart come through again for coffee refill service.

FRA
DUB
Good 6.3

Flight attendants were excellent.

JFK
DUB
Excellent 8.0

Good

LAX
DUB
Mediocre 2.6

The flight was very bare bones. Entertainment system froze up half way into a movie. You had to pay for wine with dinner. Even on budget carriers, wine is included with meals on the long hauls. Half a cup of water was served twice during the flight. The cabin was kept quite cold. I wore thick socks and slippers throughout the flight, but had to use the small blanket provided to keep my feet warm. Glad I had a heavy coat! I will avoid this carrier on any long hauls in the future.

Dinner not too good. Breakfast very poor. Cold flight. Entertainment not working. Avoid for long hauls.

Sat, Apr 14
SEA
SNN
22h 15m
Fri, Apr 20
SNN
SEA
18h 15m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 13
SEA
SNN
14h 05m
Mon, Apr 23
SNN
SEA
17h 14m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 13454 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
SEA
LHR
Okay 4.0

The flight was cancelled, it was very difficult for me to do all rearrangements.

LHR
IAD
Excellent 8.3

Crew was very friendly and helpful when needed. Excellent choice of movies/entertainment (for my personal taste). Overall a pleasant, smooth 7 hour flight.

Food was as decent as an airline meal can get. Seats were as comfortable as an economy class seat can get.

LIN
LHR
Excellent 10.0

excellent, efficient, clean, professional

partnering with American Airlines is a crime and an offense.

TLV
LHR
Good 6.0

The new flight procedures informational film at the beginning of the flight (BA/Comic Relief)

The flight was to Heathrow which was not prepared to accept us at all. We waited 45 minutes in passport control. I expect BA to make sure the port of destination is prepared to receive its passengers

LHR
PHX
Good 7.0

Wheelchair was not provided at London and Phoenix locations.

Mon, Dec 11
SEA
SNN
22h 11m
Sun, Dec 17
SNN
SEA
19h 08m
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 3742 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
LAX
DUB
Mediocre 2.6

The flight was very bare bones. Entertainment system froze up half way into a movie. You had to pay for wine with dinner. Even on budget carriers, wine is included with meals on the long hauls. Half a cup of water was served twice during the flight. The cabin was kept quite cold. I wore thick socks and slippers throughout the flight, but had to use the small blanket provided to keep my feet warm. Glad I had a heavy coat! I will avoid this carrier on any long hauls in the future.

Dinner not too good. Breakfast very poor. Cold flight. Entertainment not working. Avoid for long hauls.

DUB
ORD
Okay 4.3

Tight plane. Curry? Really? Couldn't get boarding pass for partner airline until I got to the airport. Never again! Amateurish airline. Directions from staff made us go through security again.

DUB
LAX
Excellent 8.0

Crew was pleasant. Food was OK and service too. Boarding was fine.

The 4 hours wait before my connection, the extra security selection that got me all patted for the 2nd time.

FRA
DUB
Good 6.3

Flight attendants were excellent.

DUB
LAX
Good 6.0

Crew was responsive and kind if something was requested but service without asking is no longer part of a transatlantic experience.

If you're on the Airbus transatlantic flight, the last section nis so noisy I'm surprised it's even a legal noise level. You can't even hear the entertainment it's so loud. Had to buy an upgraded economy just to be able to endure the long flight. It would be nice to see the cart come through again for coffee refill service.

Fri, Nov 24
SEA
SNN
22h 11m
Fri, Dec 1
SNN
SEA
19h 09m
Trip: 8 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 3742 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
DUB
FRA
Mediocre 3.3

It got me there.

Had to pay for sodas.

DUB
BOS
Excellent 9.3

Crew and food were excellent. Very happy to accommodate my husbands health issue.

Choice of movies and tv shows limited and lacked variety.

DUB
LAX
Good 6.0

Crew was responsive and kind if something was requested but service without asking is no longer part of a transatlantic experience.

If you're on the Airbus transatlantic flight, the last section nis so noisy I'm surprised it's even a legal noise level. You can't even hear the entertainment it's so loud. Had to buy an upgraded economy just to be able to endure the long flight. It would be nice to see the cart come through again for coffee refill service.

BRU
DUB
Excellent 10.0

Everything

DUB
LAX
Okay 5.6

Flight attendants were excellent.

Food was so so. Entertainment selection was so so. Entertainment technology was substandard.

*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.