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Shannon

$339+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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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 mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$516
(United Airlines)

One-way from

$339
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$772
Provider with most accurate pricing for Seattle/Tacoma Intl-Shannon flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Shannon flights.
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From Washington to Shannon
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One-way flight from Washington to Shannon
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Highest demand for flights based on searches. 11% potential increase in price ($107 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 mayo 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/118:30 amPDX - SNN
1 stop15h 00mUnited Airlines
mié. 9/249:30 amSNN - PDX
1 stop21h 00mUnited Airlines
Deal found 4/30$516
This American Airlines deal was found by Cheapflights users on 4/30. 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.
mar. 5/63:24 pmPDX - SNN
2 stops16h 46mAmerican Airlines
jue. 5/157:40 amSNN - PDX
2 stops23h 19mAmerican Airlines
Deal found 4/30$653
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/17:00 amPDX - SNN
1 stop20h 10mDelta
vie. 8/151:05 pmSNN - PDX
1 stop16h 30mDelta
Deal found 4/29$661
This Air Canada deal was found by Cheapflights users on 4/30. 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.
jue. 9/1110:00 amPDX - SNN
2 stops26h 35mMultiple Airlines
mié. 9/247:40 amSNN - PDX
3 stops19h 06mMultiple Airlines
Deal found 4/30$714
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1611:04 amSEA - SNN
2 stops15h 11mUnited Airlines
sáb. 10/2512:30 pmSNN - SEA
2 stops18h 58mUnited Airlines
Deal found 4/29$716
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1011:31 amSEA - SNN
1 stop15h 39mDelta
vie. 9/121:05 pmSNN - SEA
1 stop17h 43mDelta
Deal found 4/29$751
This Air France deal was found by Cheapflights users on 4/29. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/171:25 pmPDX - SNN
1 stop13h 45mAir France
dom. 7/271:05 pmSNN - PDX
1 stop16h 30mAir France
Deal found 4/29$816
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1011:31 amSEA - SNN
1 stop15h 39mMultiple Airlines
mar. 6/171:05 pmSNN - SEA
1 stop15h 27mMultiple Airlines
Deal found 4/29$860
This KAYAK deal was found by Cheapflights users on 4/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/67:25 pmPDX - SNN
1 stop17h 10mAer Lingus
jue. 5/157:40 amSNN - PDX
1 stop17h 55mAer Lingus
Deal found 4/29$895
This Gurufare deal was found by Cheapflights users on 4/28. 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.
mar. 5/67:25 pmPDX - SNN
1 stop12h 45mBritish Airways
jue. 5/157:40 amSNN - PDX
1 stop17h 55mBritish Airways
Deal found 4/28$960
This American Airlines deal was found by Cheapflights users on 4/29. 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.
jue. 10/168:20 pmSEA - SNN
1 stop16h 15mAmerican Airlines
sáb. 10/257:40 amSNN - SEA
1 stop18h 40mAmerican Airlines
Deal found 4/29$979
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/122:55 pmSEA - SNN
2 stops21h 40mAir Canada
vie. 9/127:40 amSNN - SEA
2 stops18h 56mAir Canada
Deal found 4/29$999

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 mayo 1, 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

jue. 9/11

8:30 am-7:30 am

1 stop15h 00m

Shannon

mié. 9/24

9:30 am-10:30 pm

1 stop21h 00m

$516

PortlandShannon

PDX - SNN

PDXSNN

Portland

vie. 8/1

7:00 am-11:10 am

1 stop20h 10m

Shannon

vie. 8/15

1:05 pm-9:35 pm

1 stop16h 30m

$661

PortlandShannon

PDX - SNN

PDXSNN

Portland

jue. 9/11

10:00 am-8:35 pm

2 stops26h 35m

Shannon

mié. 9/24

7:40 am-6:46 pm

3 stops19h 06m

$714

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

jue. 10/16

11:04 am-10:15 am

2 stops15h 11m

Shannon

sáb. 10/25

12:30 pm-11:28 pm

2 stops18h 58m

$716

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mar. 6/10

11:31 am-11:10 am

1 stop15h 39m

Shannon

mié. 9/10

1:05 pm-10:48 pm

1 stop17h 43m

$751

PortlandShannon

PDX - SNN

PDXSNN

Portland

jue. 7/17

7:25 pm-4:10 pm

1 stop12h 45m

Shannon

dom. 7/27

9:15 pm-5:35 pm

1 stop28h 20m

$813

PortlandShannon

PDX - SNN

PDXSNN

Portland

jue. 7/17

1:25 pm-11:10 am

1 stop13h 45m

Shannon

dom. 7/27

1:05 pm-9:35 pm

1 stop16h 30m

$816

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mar. 6/10

11:31 am-11:10 am

1 stop15h 39m

Shannon

mar. 6/17

1:05 pm-8:32 pm

1 stop15h 27m

$860

PortlandShannon

PDX - SNN

PDXSNN

Portland

jue. 7/31

12:59 am-11:20 am

2 stops26h 21m

Shannon

jue. 8/14

7:40 am-10:04 pm

2 stops22h 24m

$963

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

jue. 10/16

8:20 pm-8:35 pm

1 stop16h 15m

Shannon

sáb. 10/25

7:40 am-6:20 pm

1 stop18h 40m

$979

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 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, February is the cheapest month in which you can book a flight from State of Washington to Shannon, Clare (average of $533). Flying from State of Washington to Shannon, Clare in June is currently the most expensive (average of $995). 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 mayo 1, 2025.

When flying from State of Washington to Shannon, Clare, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Shannon by month

Plan your trip to Shannon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Shannon, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

Temperature in Shannon by month

Plan your trip to Shannon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Shannon, Clare, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated mayo 1, 2025.
Read through reviews of airlines operating flights from Washington to Shannon, such as Delta, Air France and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,252 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $409. Users have also found prices from $507 and $529 on American Airlines and Delta, 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, February is the cheapest month in which you can book a flight from State of Washington to Shannon, Clare (average of $533). Flying from State of Washington to Shannon, Clare in June is currently the most expensive (average of $995). 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

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Alternative routes for Washington to Shannon

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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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$541Average$768FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$563Average$914FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$703Average$797FlexibilityNo cancel feeOn-timeN/A

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