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Shannon

$389+ Cheap flights from Washington to Shannon (SNN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find flight deals from Washington to Shannon

Cheapest flights from Washington to Shannon
Explore the most affordable flight options available from Washington to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Ovago deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:50 pmPDX - SNN
2 stops17h 55mMultiple Airlines
Tue 11/188:05 pmSNN - PDX
1 stop27h 50mMultiple Airlines
Deal found 11/10$643
This Mytrip deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/92:35 pmSEA - SNN
2 stops22h 55mMultiple Airlines
Tue 12/165:30 pmSNN - SEA
2 stops31h 30mMultiple Airlines
Deal found 11/11$643
This Air Canada deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:15 pmPDX - SNN
2 stops17h 30mAir Canada
Sun 12/77:50 amSNN - PDX
2 stops38h 50mAir Canada
Deal found 11/9$669
This British Airways deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:45 pmPDX - SNN
1 stop15h 00mBritish Airways
Sun 12/77:50 amSNN - PDX
1 stop16h 05mBritish Airways
Deal found 11/11$672
This American Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:25 pmSEA - SNN
1 stop19h 20mAmerican Airlines
Tue 12/167:50 amSNN - SEA
2 stops22h 35mAmerican Airlines
Deal found 11/11$674
This American Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:07 pmPDX - SNN
2 stops18h 38mAmerican Airlines
Sun 12/77:50 amSNN - PDX
1 stop16h 05mAmerican Airlines
Deal found 11/9$678
This Mytrip deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/92:45 pmPDX - SNN
2 stops22h 45mMultiple Airlines
Tue 12/165:30 pmSNN - PDX
2 stops31h 30mMultiple Airlines
Deal found 11/10$679
This Air Canada deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:00 amPDX - SNN
3 stops20h 30mAir Canada
Tue 11/187:50 amSNN - PDX
3 stops22h 46mAir Canada
Deal found 11/10$1,020
This American Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:20 amSEA - SNN
2 stops16h 10mAmerican Airlines
Fri 1/27:50 amSNN - SEA
2 stops21h 20mAmerican Airlines
Deal found 11/11$2,279
This Ovago deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:50 pmSEA - SNN
1 stop16h 35mMultiple Airlines
Fri 1/27:50 amSNN - SEA
2 stops21h 21mMultiple Airlines
Deal found 11/11$2,670
This Gurufare deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2012:13 amSEA - SNN
2 stops27h 17mAer Lingus
Fri 1/28:05 pmSNN - SEA
1 stop23h 25mAer Lingus
Deal found 11/11$5,164

Cheap flight deals from Washington to Shannon

Keep the following information in mind while searching for Washington to Shannon flight deals. Data was last updated November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$473
(American Airlines)

One-way from

$389
(United Airlines)

Popular in

June

Cheapest in

July
Provider with most accurate pricing for Seattle/Tacoma Intl-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Shannon flights.
Search Deals
From Washington to Shannon
Search Deals
One-way flight from Washington to Shannon
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Shannon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Washington to Shannon that are best for you.

Fly from

Washington

Fly to

Shannon

Route

Depart

Return

Price

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 3/5

12:05 pm-4:45 pm

2 stops20h 40m

Shannon

Wed 3/11

7:50 am-4:55 pm

1 stop16h 05m

$473

PortlandShannon

PDX - SNN

PDXSNN

Portland

Mon 1/19

12:35 pm-4:45 pm

2 stops20h 10m

Shannon

Thu 1/29

7:50 am-8:22 pm

2 stops20h 32m

$484

PortlandShannon

PDX - SNN

PDXSNN

Portland

Tue 4/21

6:53 am-10:15 am

2 stops19h 22m

Shannon

Sat 5/2

12:30 pm-7:31 pm

1 stop15h 01m

$487

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 4/30

7:30 am-10:15 am

2 stops18h 45m

Shannon

Thu 5/14

12:30 pm-7:31 pm

1 stop15h 01m

$491

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/5

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Fri 5/15

7:40 am-11:05 pm

2 stops23h 25m

$530

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

12:25 pm-10:15 am

1 stop13h 50m

Shannon

Sat 4/25

12:30 pm-11:14 pm

2 stops18h 44m

$542

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 12/9

2:35 pm-9:30 pm

2 stops22h 55m

Shannon

Tue 12/16

5:30 pm-5:00 pm

2 stops31h 30m

$643

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 12/9

1:25 pm-4:45 pm

1 stop19h 20m

Shannon

Tue 12/16

7:50 am-10:25 pm

2 stops22h 35m

$674

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Sat 4/25

5:30 pm-11:35 am

1 stop26h 05m

$684

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 3/13

2:35 pm-11:30 am

1 stop13h 55m

Shannon

Thu 3/19

5:30 pm-12:30 pm

1 stop26h 00m

$701

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 14 results
1
2

Best time to book a flight from Washington to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Shannon

What is the cheapest month to book a flight from State of Washington to Shannon, Clare?

Currently, November is the cheapest month in which you can book a flight from State of Washington to Shannon, Clare (average of $526). Flying from State of Washington to Shannon, Clare in June is currently the most expensive (average of $864). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to SNN?

Find hourly flight availability from Washington to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Shannon, Clare at noon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from State of Washington to Shannon, Clare?

Use this chart to determine the cheapest time to fly round-trip from Washington to Shannon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Shannon, Clare flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Washington to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Shannon from Washington?

    Located just 2.1 mi from the city center, Shannon (SNN) is the airport most travelers will use when flying to Shannon from Washington.

  • How long is the flight from State of Washington to Shannon, Clare?

    For as low as $542, American Airlines can have you in Shannon, Clare from State of Washington in 13h 50m. Airlines will cover a distance of 4485 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Washington to Shannon that include hotel bookings?

    Yes. In addition to deals on Washington to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Shannon.

  • Can I find deals for business class flights from Washington to Shannon?

    Yes. Cheapflights offers flight deals from Washington to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Shannon, Clare?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to Shannon, Clare (average of $526). Flying from State of Washington to Shannon, Clare in June is currently the most expensive (average of $864). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Ennis

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Top 3 airlines flying from Washington to Shannon

Discover the top 3 airlines that operate flights from Washington to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$520Average$623FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$593Average$757FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$715Average$797FlexibilityNo cancel feeOn-timeN/A

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