Cheap Flights from Seattle to Shannon

Compare Seattle to Shannon flight deals

Find the cheapest month or even day of the year to fly to Shannon

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Flight deals from Seattle to Shannon

Looking for a cheap last-minute deal or the best return flight from Seattle to Shannon Airport? If you want to travel next month, return fares start from R 12,777. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Shannon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Shannon flights are currently cheapest in May.

Seattle to Shannon: Alternative routes

Compare routes from Seattle to Shannon below. You may find an airport to fly into that's cheaper, faster, or easier than Shannon.

Seattle to Shannon: Flight information

The things to know before you go.
Cheapest flight foundR 4,580
Cheapest month to flyMay

Finding cheap flights from Seattle to Shannon: Frequently asked questions

The best price we found for a return flight from Seattle to Shannon is R 11,968. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle to Shannon. But we found flights with one stop from R 11,968.
As of April 2026, there are no flights flying from Seattle to Shannon.
The cheapest month to fly from Seattle to Shannon is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Shannon Airport on Wednesday, 22 April 2026.
No airlines currently offer direct flights between Seattle and Shannon Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Shannon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Shannon is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Shannon is Icelandair .

Flying from Seattle to Shannon Airport (SNN): What you need to know

  • Shannon Airport is located in Shannon. The city operates on the UTC+0 timezone and is eight hours ahead of Seattle.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your flight from Seattle to SNN.

  • Hopping on a plane during a peak month like July? Busy periods (like Thanksgiving, Christmas and New Year) can easily add another hour at check-in and security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Stopovers are the perfect opportunity to break up your journey and perhaps even visit a new city. When browsing cheap flights from Seattle to SNN leaving from Seattle-Tacoma International Airport (SEA), deselect the 'Direct flights only' box to discover where you can stop along the way. Some popular options include:

    • Chicago O'Hare International Airport (ORD)

    • London Heathrow Airport (LHR)

    • New York John F. Kennedy International Airport (JFK)

  • SEA is about 23 kilometres from central Seattle. If you're catching a taxi, driving or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the travel time to be around 35 minutes.

  • Want a leisurely start to your journey? Stay near Seattle-Tacoma International Airport. Whether you're catching an early flight from Seattle to Shannon Airport or just don't like being rushed, these hotels offer the perfect solution:

  • Seattle-Tacoma International Airport earns top marks for on-time performance. 80% of flights that depart SEA arrive at their destination on time.

Seattle Paine Field International Airport (PAE)

  • On public transport, you can travel from central Seattle to PAE in about 1 hour 30 minutes. The airport is roughly 40 kilometres away, and getting there by car takes approximately 40 minutes.

  • Flying off with the first light? Think about staying at one of these accommodation options near Seattle Paine Field International Airport the day before your Seattle to SNN flight:

  • Seattle Paine Field International Airport has a strong track record for reliability and timeliness. 80% of flights out of here make it to their final destination as planned.

About Shannon Airport (SNN)

  • If you're coming in on a late flight from Seattle to Shannon Airport, few things beat the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and snoozing soon after at one of these options near SNN:

  • Booking your vehicle around four weeks ahead of your Seattle to Shannon Airport flight can help you get the lowest rate.

Getting from Shannon Airport (SNN) to central Shannon

  • Shannon Airport to the centre of Shannon is around 3 kilometres. If you're getting a taxi or renting a car, plan in advance to make your trip as smooth as possible. Journey times will vary depending on the time of day and traffic conditions.

  • If you're travelling on public transport, expect a journey of around 15 minutes.

How to find the cheapest flights from Seattle to Shannon Airport (SNN)

  • The lowest price we've found for a one-way ticket from Seattle to Shannon Airport is R 4,580. For a return flight on this route, the best price is R 11,968. Depending on when and how early you book, these fares can change.

  • To pick up cheap flights from Seattle to SNN, book in advance. Airlines usually offer the most competitive fares when flights first go on sale.

  • Cheap Seattle to Shannon Airport tickets are easier to find when your dates are flexible. Try using the 'Whole month' tool to compare fares throughout the month and then choose the cheapest day.

  • Save time searching for cheap plane tickets from Seattle to SNN by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Lock in a cheap flight from Seattle to Shannon Airport by using filters. Select your ideal duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seattle to Shannon Airport (SNN)

  • December is the quietest month for flights from Seattle to Shannon Airport (SNN), while June is the busiest. Figure out the best time to go to Shannon based on whether you like a laid-back vibe or a more bustling atmosphere.

  • Book a Seattle to SNN plane ticket departing in July if you want to visit the city during its warmest month. You can expect temperatures in Shannon to range from 9ºC (48ºF) to 22ºC (72ºF).

  • If you want to travel in cooler conditions, search for a cheap ticket from Seattle to Shannon Airport in January when temperatures are between 0ºC (32ºF) and 9ºC (48ºF).

More about Shannon

  • When it comes to searching for somewhere to rest your head, you'll find the top stays in Shannon right here. Check out these options once you've locked in your flight from Seattle to Shannon Airport:

  • View Point Bunratty Castle and Mooghaun Hill Fort are just two of the major attractions to add to your Shannon itinerary. Keep the adventure rolling by checking out Shannon Aviation Museum.

Explore more of Ireland

  • Dublin is just one of the many places in Ireland waiting to be discovered after you've seen Shannon. Around 193 kilometres away to the northeast, well-known attractions include Guinness Storehouse, Trinity College Library and St. Patrick's Cathedral.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.