SNN - SEA

$708 Find Cheap Flights from Shannon to Seattle - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$708
Typical prices: $866-$880
Multiple Airlines
Sun 9/30Thu 10/4
SNN - SEA • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Shannon and Seattle. You'll need to take a connecting flight to reach the destination.
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Cheap Flights from Shannon to Seattle (SNN-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Shannon to Seattle

Wed, Sep 30 - Sun, Oct 4
Multiple Airlines Logo
4:50 pm - 11:15 amSNN  Shannon-SEA Seattle/Tacoma Intl
26h 25m2 stops London Heathrow Paris Charles de Gaulle
Multiple Airlines Logo
1:30 pm - 4:35 pmSEA  Seattle/Tacoma Intl-SNN Shannon
19h 05m2 stops Paris Charles de Gaulle London Gatwick
$708Multiple Airlines
Thu, Oct 1 - Sun, Oct 4
Multiple Airlines Logo
9:15 pm - 11:15 amSNN  Shannon-SEA Seattle/Tacoma Intl
22h 00m2 stops London Heathrow Paris Charles de Gaulle
Multiple Airlines Logo
1:30 pm - 4:35 pmSEA  Seattle/Tacoma Intl-SNN Shannon
19h 05m2 stops Paris Charles de Gaulle London Gatwick
$719Multiple Airlines
Wed, Sep 30 - Sun, Oct 4
Multiple Airlines Logo
4:50 pm - 11:15 amSNN  Shannon-SEA Seattle/Tacoma Intl
26h 25m2 stops London Heathrow Paris Charles de Gaulle
Multiple Airlines Logo
5:30 pm - 8:35 pmSEA  Seattle/Tacoma Intl-SNN Shannon
19h 05m1 stop London Heathrow
$727Multiple Airlines
Thu, Oct 1 - Sun, Oct 4
Multiple Airlines Logo
7:30 am - 7:00 pmSNN  Shannon-SEA Seattle/Tacoma Intl
19h 30m1 stop London Heathrow
Multiple Airlines Logo
9:40 pm - 8:35 pmSEA  Seattle/Tacoma Intl-SNN Shannon
14h 55m1 stop London Heathrow
$744Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
7:50 am - 10:59 pmSNN  Shannon-SEA Seattle/Tacoma Intl
22h 09m2 stops London Heathrow Philadelphia
Multiple Airlines Logo
9:15 am - 11:30 amSEA  Seattle/Tacoma Intl-SNN Shannon
18h 15m2 stops Philadelphia London Heathrow
$746Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
8:05 pm - 12:25 pmSNN  Shannon-SEA Seattle/Tacoma Intl
23h 20m1 stop London Heathrow
Multiple Airlines Logo
9:15 am - 11:30 amSEA  Seattle/Tacoma Intl-SNN Shannon
18h 15m2 stops Philadelphia London Heathrow
$748Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
British Airways Logo
8:05 pm - 12:25 pmSNN  Shannon-SEA Seattle/Tacoma Intl
23h 20m1 stop London Heathrow
British Airways Logo
6:45 pm - 3:45 pmSEA  Seattle/Tacoma Intl-SNN Shannon
13h 00m1 stop London Heathrow
$753British Airways
Wed, Sep 30 - Sun, Oct 4
Multiple Airlines Logo
7:30 am - 2:00 pmSNN  Shannon-SEA Seattle/Tacoma Intl
14h 30m1 stop London Heathrow
Multiple Airlines Logo
5:30 pm - 8:35 pmSEA  Seattle/Tacoma Intl-SNN Shannon
19h 05m1 stop London Heathrow
$756Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
British Airways Logo
5:30 pm - 12:25 pmSNN  Shannon-SEA Seattle/Tacoma Intl
25h 55m1 stop London Heathrow
British Airways Logo
6:45 pm - 3:45 pmSEA  Seattle/Tacoma Intl-SNN Shannon
13h 00m1 stop London Heathrow
$758British Airways
Fri, Oct 30 - Fri, Nov 6
Multiple Airlines Logo
5:30 pm - 12:25 pmSNN  Shannon-SEA Seattle/Tacoma Intl
25h 55m1 stop London Heathrow
Multiple Airlines Logo
12:02 pm - 3:45 pmSEA  Seattle/Tacoma Intl-SNN Shannon
19h 43m2 stops Portland London Heathrow
$794Multiple Airlines
Booking Insights

Price, demand and travel trends for Shannon to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Shannon to Seattle with more confidence.

What is the cheapest airline to fly from Shannon to Seattle?

British Airways ($753) offered the cheapest round-trip ticket from Shannon to Seattle in the last 5 days.

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When to book flights from Shannon to Seattle

Are your dates flexible? Find out the best times to travel from Shannon to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Shannon to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Shannon to Seattle?

    Flights from Shannon to Seattle usually depart from Shannon (SNN) and arrive at Seattle/Tacoma Intl (SEA).

  • What cabin classes can I book on flights from Shannon to Seattle?

    Only Business Class is available on flights from Shannon to Seattle.

  • Which airports do connecting flights from Shannon to Seattle pass through?

    Most connecting flights from Shannon to Seattle pass through Boston Logan Intl (BOS), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Shannon to Seattle?

    Yes. Being flexible with your travel dates can save you up to 12% on the Shannon to Seattle route. Friday is the cheapest departure day at $866 round-trip on average, while Saturday is the most expensive at $982, a difference of $116. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

  • How long is a flight from Shannon to Seattle?

    A nonstop flight from Shannon to Seattle takes 0h 00m, covering 4,485 miles.

  • Do I need a passport to fly from Shannon to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Shannon to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $708 to $4,390. That means the highest observed fare was about 6x higher than the lowest one.

  • What is the time difference between Shannon and Seattle?

    Seattle is 8 hours behind Shannon (Pacific Time vs Irish Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • How much should I expect to pay for a Shannon to Seattle flight?

    Round-trip flights from Shannon to Seattle range from $866 to $880, with an average of $866 over the past 12 months. Anything below $866 counts as a good deal.

Your guide to booking Shannon to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.

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