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Shannon

$329+ Cheap flights from Dulles Intl (IAD) 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SNN
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Dulles Intl to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 16, 2025.

Round-trip from

$524
(American Airlines)

One-way from

$329
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,250
From Washington, D.C. Dulles Intl to Shannon
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One-way flight from Washington, D.C. Dulles Intl to Shannon
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Highest demand for flights based on searches. 9% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Dulles Intl to Shannon

Cheapest flights from Dulles Intl to Shannon
Explore the most affordable flight options available from Dulles Intl to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This American Airlines deal was found by Cheapflights users on 6/14. 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 8/207:25 pmIAD - SNN
1 stop20h 10mAmerican Airlines
Wed 8/277:40 amSNN - IAD
1 stop14h 50mAmerican Airlines
Deal found 6/14$524
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Sat 9/66:40 pmIAD - SNN
1 stop31h 50mUnited Airlines
Thu 9/189:30 amSNN - IAD
1 stop13h 00mUnited Airlines
Deal found 6/13$525
This KLM deal was found by Cheapflights users on 6/14. 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.
Tue 7/2912:12 pmIAD - SNN
1 stop17h 58mMultiple Airlines
Tue 8/51:05 pmSNN - IAD
2 stops14h 50mMultiple Airlines
Deal found 6/14$530
This Delta deal was found by Cheapflights users on 6/14. 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.
Thu 8/218:23 pmIAD - SNN
1 stop9h 47mDelta
Fri 8/291:05 pmSNN - IAD
1 stop11h 38mDelta
Deal found 6/14$576
This KLM deal was found by Cheapflights users on 6/16. 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.
Thu 7/3112:12 pmIAD - SNN
1 stop17h 58mKLM
Thu 8/71:05 pmSNN - IAD
2 stops16h 29mKLM
Deal found 6/16$702
This Air France deal was found by Cheapflights users on 6/14. 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.
Sun 8/247:30 pmIAD - SNN
2 stops34h 40mAir France
Sun 8/311:05 pmSNN - IAD
1 stop11h 38mAir France
Deal found 6/14$705
This Air Canada deal was found by Cheapflights users on 6/14. 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 8/249:35 amIAD - SNN
2 stops25h 35mAir Canada
Mon 9/19:15 pmSNN - IAD
2 stops42h 58mAir Canada
Deal found 6/14$724
This oojo deal was found by Cheapflights users on 6/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:45 pmIAD - SNN
1 stop16h 50mAer Lingus
Mon 10/69:15 pmSNN - IAD
2 stops27h 15mAer Lingus
Deal found 6/15$746
This Ovago deal was found by Cheapflights users on 6/15. 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.
Fri 11/216:15 pmIAD - SNN
1 stop12h 15mBritish Airways
Fri 11/287:50 amSNN - IAD
2 stops16h 40mBritish Airways
Deal found 6/15$804

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl 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 June 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Shannon that are best for you.

Fly from

Dulles Intl

Fly to

Shannon

Route

Depart

Return

Price

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Wed 8/20

7:25 pm-8:35 pm

1 stop20h 10m

Shannon

Wed 8/27

7:40 am-5:30 pm

1 stop14h 50m

$524

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sat 9/6

6:40 pm-7:30 am

1 stop31h 50m

Shannon

Thu 9/18

9:30 am-5:30 pm

1 stop13h 00m

$525

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Tue 7/29

12:12 pm-11:10 am

1 stop17h 58m

Shannon

Tue 8/5

1:05 pm-10:55 pm

2 stops14h 50m

$530

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Thu 8/21

8:23 pm-11:10 am

1 stop9h 47m

Shannon

Fri 8/29

1:05 pm-7:43 pm

1 stop11h 38m

$576

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Thu 7/31

12:12 pm-11:10 am

1 stop17h 58m

Shannon

Thu 8/7

1:05 pm-12:34 am

2 stops16h 29m

$702

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 8/24

7:30 pm-11:10 am

2 stops34h 40m

Shannon

Sun 8/31

1:05 pm-7:43 pm

1 stop11h 38m

$705

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 8/24

9:35 am-4:10 pm

2 stops25h 35m

Shannon

Mon 9/1

9:15 pm-11:13 am

2 stops42h 58m

$724

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 8/24

10:40 pm-4:10 pm

1 stop12h 30m

Shannon

Sat 8/30

5:30 pm-3:50 pm

2 stops27h 20m

$760

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 7/13

8:25 pm-8:35 pm

2 stops19h 10m

Shannon

Sun 7/20

9:15 pm-5:09 pm

2 stops24h 54m

$859

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sat 6/21

3:45 pm-10:15 am

2 stops13h 30m

Shannon

Sat 6/28

12:30 pm-9:18 pm

2 stops13h 48m

$6,179

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 14 results
1
2

Best time to book a flight from Dulles Intl to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Dulles Intl 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, D.C. Dulles Intl Airport to Shannon

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

Find hourly flight availability from Dulles Intl 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 June 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Shannon, Clare in the evening. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight at noon.

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 June 16, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Shannon, such as Delta, KLM and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,361 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,963 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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, D.C. Dulles Intl?

    Shannon (SNN) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Shannon. You should not have trouble finding flights to Shannon from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Shannon airport from Washington, D.C. Dulles Intl. It is only a 2.1 mi journey from Shannon (SNN) to Shannon’s city center.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Shannon, Clare round-trip?

    Flying on American Airlines is currently your cheapest option to Shannon, Clare, with prices starting at $524. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $525 and $580, respectively.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Shannon, Clare one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $399. Aer Lingus flights start at $508 while deals on Delta start at $1,084 one-way.

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

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

  • How can I find direct flights from Dulles Intl to Shannon?

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Shannon, Clare (average of $533). Flying from Washington, D.C. Dulles Intl Airport to Shannon, Clare in June is currently the most expensive (average of $959). 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 Washington, D.C. Dulles Intl Airport?

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Top 5 airlines flying from Dulles Intl to Shannon

Discover the top 5 airlines that operate flights from Dulles Intl 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$643Average$645FlexibilityNo cancel feeOn-time75%
DeltaCheapest$644Average$936FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$646Average$704FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$663Average$929FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$796Average$945FlexibilityNo cancel feeOn-time70%

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