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Shannon

$375+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 6, 2025.

This American Airlines deal was found by Cheapflights users on 11/6. 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.
Thu 12/46:50 pmSEA - SNN
1 stop13h 55mAmerican Airlines
Thu 12/117:50 amSNN - SEA
1 stop17h 05mAmerican Airlines
Deal found 11/6$469
This Air Canada deal was found by Cheapflights users on 11/5. 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 12/39:50 amPDX - SNN
2 stops41h 40mAir Canada
Sun 12/77:50 amSNN - PDX
2 stops33h 25mAir Canada
Deal found 11/5$669
This Air Canada deal was found by Cheapflights users on 11/6. 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.
Thu 12/410:05 amSEA - SNN
2 stops22h 40mMultiple Airlines
Thu 12/117:50 amSNN - SEA
3 stops22h 56mMultiple Airlines
Deal found 11/6$675
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/312:00 pmPDX - SNN
2 stops20h 45mAmerican Airlines
Sun 12/77:50 amSNN - PDX
1 stop16h 05mAmerican Airlines
Deal found 11/5$679
This British Airways deal was found by Cheapflights users on 11/5. 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.
Sun 12/286:50 pmSEA - SNN
1 stop32h 40mBritish Airways
Tue 1/138:05 pmSNN - SEA
1 stop28h 50mBritish Airways
Deal found 11/5$775
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/2811:59 pmSEA - SNN
2 stops22h 21mAmerican Airlines
Tue 1/132:45 pmSNN - SEA
2 stops36h 19mAmerican Airlines
Deal found 11/5$782
This British Airways deal was found by Cheapflights users on 11/5. 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 11/52:50 pmPDX - SNN
2 stops17h 55mBritish Airways
Sun 11/167:50 amSNN - PDX
2 stops21h 30mBritish Airways
Deal found 11/5$827
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 12/2712:14 amSEA - SNN
2 stops22h 06mMultiple Airlines
Tue 1/137:50 amSNN - SEA
1 stop17h 05mMultiple Airlines
Deal found 11/5$863
This Air Canada deal was found by Cheapflights users on 11/5. 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.
Sun 12/288:10 amSEA - SNN
2 stops24h 35mAir Canada
Tue 1/137:50 amSNN - SEA
3 stops22h 16mAir Canada
Deal found 11/5$987
This Orbitz deal was found by Cheapflights users on 11/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:26 pmPDX - SNN
2 stops33h 19mMultiple Airlines
Sun 11/167:50 amSNN - PDX
2 stops38h 00mMultiple Airlines
Deal found 11/5$1,030
This American Airlines deal was found by Cheapflights users on 11/5. 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 11/53:15 pmPDX - SNN
2 stops17h 30mAmerican Airlines
Sun 11/167:50 amSNN - PDX
2 stops21h 25mAmerican Airlines
Deal found 11/5$1,125
This Air Canada deal was found by Cheapflights users on 11/5. 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 11/511:59 pmPDX - SNN
3 stops27h 31mAir Canada
Sun 11/167:50 amSNN - PDX
2 stops33h 25mAir Canada
Deal found 11/5$2,218

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 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$469
(American Airlines)

One-way from

$375
(American 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. 7% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($47 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 6, 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

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 3/1

6:50 pm-4:45 pm

1 stop13h 55m

Shannon

Tue 3/10

7:50 am-5:55 pm

1 stop17h 05m

$469

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 12/4

10:34 am-11:30 am

2 stops16h 56m

Shannon

Thu 12/11

7:50 am-4:55 pm

1 stop17h 05m

$473

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 2/2

2:29 pm-4:45 pm

2 stops18h 16m

Shannon

Wed 2/18

7:50 am-4:55 pm

1 stop17h 05m

$474

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 3/30

1:35 pm-4:10 pm

1 stop18h 35m

Shannon

Fri 4/10

7:40 am-11:05 pm

2 stops23h 25m

$479

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/5

1:35 pm-8:35 pm

1 stop23h 00m

Shannon

Fri 5/15

7:40 am-11:05 pm

2 stops23h 25m

$529

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

12:20 pm-10:15 am

1 stop13h 55m

Shannon

Sat 4/25

12:30 pm-11:21 pm

2 stops18h 51m

$541

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 12/3

9:50 am-11:30 am

2 stops41h 40m

Shannon

Sun 12/7

7:50 am-9:15 am

2 stops33h 25m

$669

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 12/3

5:45 pm-11:30 am

1 stop33h 45m

Shannon

Sun 12/7

7:50 am-3:55 pm

1 stop16h 05m

$669

PortlandShannon

PDX - SNN

PDXSNN

Portland

Fri 11/14

3:30 pm-3:45 pm

2 stops16h 15m

Shannon

Tue 12/16

7:50 am-9:20 pm

2 stops21h 30m

$11,881

PortlandShannon

PDX - SNN

PDXSNN

Portland

Mon 11/17

5:45 pm-4:45 pm

1 stop15h 00m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 13 results
1
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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 $867). 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 6, 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 $469, American Airlines can have you in Shannon, Clare from State of Washington in 13h 55m. Airlines will cover a distance of 4485 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from State of Washington to Shannon, Clare one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $375. Users have also found prices from $389 and $481 on United Airlines and Air Canada, respectively.

  • 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 $867). 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 6, 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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