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Shannon

$411+ Cheap flights from St. Louis (STL) 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SNN
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheap flight deals from St. Louis to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 abril 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$625
(United Airlines)

One-way from

$411
(American Airlines)

Popular in

August

Cheapest in

December

Average price

$1,024
Provider with most accurate pricing for Lambert-St Louis-Shannon flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Shannon flights.
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From Lambert-St Louis to Shannon
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One-way flight from Lambert-St Louis to Shannon
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Highest demand for flights based on searches. 13% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from St. Louis to Shannon

Cheapest flights from St. Louis to Shannon
Explore the most affordable flight options available from St. Louis to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 29, 2025.

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.
mié. 8/1310:00 amSTL - SNN
1 stop15h 30mUnited Airlines
sáb. 8/239:30 amSNN - STL
1 stop18h 02mUnited Airlines
Deal found 4/29$625
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/283:40 pmSTL - SNN
2 stops13h 30mMultiple Airlines
mié. 6/181:05 pmSNN - STL
2 stops16h 31mMultiple Airlines
Deal found 4/28$710
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/1210:48 amSTL - SNN
2 stops18h 22mKLM
jue. 6/191:05 pmSNN - STL
2 stops16h 46mKLM
Deal found 4/28$840
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/167:30 pmSTL - SNN
2 stops38h 35mBritish Airways
sáb. 6/75:30 pmSNN - STL
2 stops33h 00mBritish Airways
Deal found 4/28$1,013
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.
vie. 5/167:30 pmSTL - SNN
2 stops14h 20mAmerican Airlines
sáb. 6/77:40 amSNN - STL
2 stops19h 05mAmerican Airlines
Deal found 4/29$1,038
This Air Canada 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/281:30 pmSTL - SNN
2 stops15h 50mAir Canada
mié. 6/187:40 amSNN - STL
3 stops21h 05mAir Canada
Deal found 4/29$1,069
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/1611:49 amSTL - SNN
1 stop16h 26mLufthansa
sáb. 6/712:30 pmSNN - STL
1 stop14h 55mLufthansa
Deal found 4/29$1,840

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis 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 abril 29, 2025.
Use the filters below to find and compare flights from St. Louis to Shannon that are best for you.

Fly from

St. Louis

Fly to

Shannon

Route

Depart

Return

Price

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

mié. 5/28

3:40 pm-11:10 am

2 stops13h 30m

Shannon

mié. 6/18

1:05 pm-11:36 pm

2 stops16h 31m

$710

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

lun. 7/21

10:00 am-7:30 am

1 stop15h 30m

Shannon

vie. 8/1

9:30 am-10:45 pm

1 stop19h 15m

$723

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

jue. 6/12

10:48 am-11:10 am

2 stops18h 22m

Shannon

jue. 6/19

1:05 pm-11:51 pm

2 stops16h 46m

$840

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

vie. 5/16

7:30 pm-4:05 pm

2 stops38h 35m

Shannon

sáb. 6/7

5:30 pm-8:30 pm

2 stops33h 00m

$1,013

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

vie. 5/16

7:30 pm-3:50 pm

2 stops14h 20m

Shannon

sáb. 6/7

7:40 am-8:45 pm

2 stops19h 05m

$1,038

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

mié. 5/28

1:30 pm-11:20 am

2 stops15h 50m

Shannon

mié. 6/18

7:40 am-10:45 pm

3 stops21h 05m

$1,069

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

vie. 5/16

11:49 am-10:15 am

1 stop16h 26m

Shannon

sáb. 6/7

12:30 pm-9:25 pm

1 stop14h 55m

$1,840

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

mar. 5/13

1:59 pm-11:20 am

2 stops15h 21m

$431

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

mar. 5/13

8:30 am-10:15 am

2 stops19h 45m

$433

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

lun. 6/9

10:48 am-11:10 am

2 stops18h 22m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from St. Louis to Shannon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Shannon in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Shannon, Clare flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on St. Louis-Shannon, Clare flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Shannon, Clare flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Shannon, Clare flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from St. Louis 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 St. Louis to Shannon

What is the cheapest month to book a flight from St. Louis to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Shannon, Clare (average of $533). Flying from St. Louis 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.

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 abril 29, 2025.
KLM
7.8
Good
1,334 reviews

Comfort

7.7

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,334 reviews
KLM
7.8
Good
1,334 reviews

Comfort

7.7

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,696 reviews
KLM
7.8
Good
1,334 reviews

Comfort

7.7

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,334 reviews

Comfort

7.7

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Air Canada
7.0
Good
9,244 reviews
KLM
7.8
Good
1,334 reviews

Comfort

7.7

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Lufthansa
6.7
Okay
7,044 reviews
KLM
7.8
Good
1,334 reviews

Comfort

7.7

Crew

8.4

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

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

  • What are the cheapest airlines flying from St. Louis to Shannon, Clare round-trip?

    Cheapflights users have booked flights from St. Louis to Shannon, Clare round-trip from $625. Other airlines that can offer you cheap pricing are American Airlines, from $692, and KLM, from $840. United Airlines is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Shannon, Clare one-way?

    The cheapest airlines for a one-way flight from St. Louis to Shannon, Clare are American Airlines ($411), United Airlines ($433), and KLM ($638).

  • Can I find deals for flights from St. Louis to Shannon that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Shannon?

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

  • Can I find deals for business class flights from St. Louis to Shannon?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Shannon, Clare (average of $533). Flying from St. Louis 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.

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Top 2 airlines flying from St. Louis to Shannon

Discover the top 2 airlines that operate flights from St. Louis 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$518Average$907FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$719Average$1,051FlexibilityNo cancel feeOn-time69%

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