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Shannon

$756+ Cheap flights from St. Louis (STL) to Shannon (SNN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SNN
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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1. Tell us where you want to go
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2. Select your favorite providers
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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 October 31, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

March

Cheapest in

December

Average price

$871

Round-trip from

$756
(American Airlines)
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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High demand for flights, 35% potential price rise
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Best time to find cheap flights, 48% potential price drop
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Average for round-trip flights in October 2024
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From Lambert-St Louis to Shannon
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Find flight deals from St. Louis to Shannon

Best flights from St. Louis to Shannon
Discover carefully curated flight deals from St. Louis to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2024.

This American Airlines deal was found by Cheapflights users on 10/31. 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 1/912:45 pmSTL - SNN
2 stops16h 45mAmerican Airlines
Thu 3/207:45 amSNN - STL
2 stops18h 27mAmerican Airlines
Deal found 10/31$756
This Air Canada deal was found by Cheapflights users on 10/31. 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 1/911:30 amSTL - SNN
3 stops18h 00mMultiple Airlines
Thu 3/208:05 pmSNN - STL
2 stops48h 01mMultiple Airlines
Deal found 10/31$811
This Air Canada deal was found by Cheapflights users on 10/31. 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 1/911:30 amSTL - SNN
3 stops18h 00mAir Canada
Thu 3/207:45 amSNN - STL
3 stops32h 02mAir Canada
Deal found 10/31$1,176

Find flights from St. Louis to Shannon within your budget

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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 1/9

12:45 pm-11:30 am

2 stops16h 45m

Shannon

Thu 3/20

7:45 am-9:12 pm

2 stops18h 27m

$756

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 1/9

11:30 am-11:30 am

3 stops18h 00m

Shannon

Thu 3/20

8:05 pm-3:06 pm

2 stops48h 01m

$811

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 1/9

11:30 am-11:30 am

3 stops18h 00m

Shannon

Thu 3/20

7:45 am-10:47 am

3 stops32h 02m

$1,176

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 12/12

11:43 am-11:30 am

2 stops17h 47m

Shannon

Thu 12/19

7:45 am-9:37 pm

2 stops19h 52m

$3,475

Flights are sorted by cheapest first

Deals found on 10/31

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 October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*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 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 flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from St. Louis-Shannon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Shannon 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 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.

Travel insights for flights from St. Louis to Shannon

Get recent, data-driven insights about flights from St. Louis to Shannon including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to Shannon (average of $528). Flying from St. Louis to Shannon in June is currently the most expensive (average of $1,006). 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 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 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, 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 October 31, 2024.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Food

6.6

Comfort

7.2

Boarding

7.6

Entertainment

7.0

Crew

8.0

Reviews

1 / 10

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap

American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Food

6.6

Comfort

7.2

Boarding

7.6

Entertainment

7.0

Crew

8.0

Reviews

1 / 10

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap

Air Canada
7.0
Good
8,095 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Food

6.6

Comfort

7.2

Boarding

7.6

Entertainment

7.0

Crew

8.0

Reviews

1 / 10

The seats are just SO UNCOMFORTABLE it completely ruins the experience, especially on a redeye. I was so exhausted but couldn’t sleep a wink because it was just so incredibly uncomfortable. I don’t know who designs airplane seats, but they’re curved forward, forcing your body into a slouching position. Please. Please please get new seats. Also ones that actually extent to the bulkhead so that when you try to lean against the wall, you don’t just fall through the gap

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.

  • Can I find flights from St. Louis to Shannon for under $800 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Shannon for under $800. The cheapest flight booked recently is on American Airlines for just $756, but on average you can expect to pay $914.

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

    According to our current data, American Airlines ($756), and Air Canada ($1,176) offers the cheapest pricing from St. Louis to Shannon. American Airlines is priced at 24% lower than the current average price of a flight leaving 3 months from now.

  • What does STL to SNN mean?

    STL and SNN are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SNN refers to a flight route from Lambert-St Louis Airport to Shannon Airport.

  • Can I find deals for flights from St. Louis to Shannon that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Shannon flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Shannon with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Shannon flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Shannon that allow pets onboard?

    Many airlines flying from St. Louis to Shannon offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Shannon?

    Yes, you can often find last-minute deals on St. Louis to Shannon flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Shannon (average of $528). Flying from St. Louis to Shannon in June is currently the most expensive (average of $1,006). 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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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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$518Average$852FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$542Average$1,089FlexibilityNo cancel feeOn-time69%
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