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Cheap flights from St. Louis (STL) to Shannon (SNN) from $577

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SNN
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
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 June 6, 2024.

Round-trip from

$533
From Lambert-St Louis to Shannon
Search Deals

What is the cheapest day to fly round-trip from St. Louis to Shannon?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 65% on the overall cost on flights from St. Louis to Shannon.

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

When flying from St. Louis to Shannon, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 18% versus a flight in the morning.

Cheap St. Louis to Shannon flights in June & July 2024

Find cheap flight options from St. Louis to Shannon specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Scroll through some of the best deals on flights from St. Louis to Shannon in 2024. Check back in a little while for more flight options.
Sat 7/136:30 amSTL - SNN
2 stops22h 20mDelta
Thu 7/2512:50 pmSNN - STL
2 stops26h 12mDelta
Deal found 6/5$705
Sat 7/135:03 pmSTL - SNN
2 stops32h 27mUnited Airlines
Thu 7/259:30 amSNN - STL
1 stop12h 10mUnited Airlines
Deal found 6/5$846
Sat 7/135:30 pmSTL - SNN
1 stop32h 00mUnited Airlines
Thu 7/259:30 amSNN - STL
1 stop13h 42mUnited Airlines
Deal found 6/5$847
Sat 7/132:56 pmSTL - SNN
2 stops19h 14mAmerican Airlines
Fri 7/199:25 pmSNN - STL
2 stops25h 54mAmerican Airlines
Deal found 6/6$901
Fri 7/55:17 amSTL - SNN
2 stops18h 48mAmerican Airlines
Sun 7/149:25 pmSNN - STL
2 stops29h 24mAmerican Airlines
Deal found 6/6$913
Fri 7/56:09 pmSTL - SNN
2 stops29h 56mAmerican Airlines
Sun 7/149:25 pmSNN - STL
2 stops26h 56mAmerican Airlines
Deal found 6/5$925
Fri 7/510:19 amSTL - SNN
1 stop15h 11mUnited Airlines
Sun 7/149:30 amSNN - STL
1 stop13h 42mUnited Airlines
Deal found 6/5$972
Fri 7/511:25 amSTL - SNN
2 stops17h 05mUnited Airlines
Sun 7/149:30 amSNN - STL
1 stop13h 42mUnited Airlines
Deal found 6/6$976
Sat 7/1310:19 amSTL - SNN
1 stop15h 11mUnited Airlines
Fri 7/199:30 amSNN - STL
1 stop13h 42mUnited Airlines
Deal found 6/6$1,633

St. Louis to Shannon 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Shannon in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Scroll through some of the best deals on flights from St. Louis to Shannon in 2024. Check back in a little while for more flight options.
Fri 8/2310:08 amSTL - SNN
2 stops18h 42mKLM
Tue 9/312:50 pmSNN - STL
2 stops16h 49mKLM
Deal found 6/6$577
Wed 9/46:10 pmSTL - SNN
2 stops16h 00mAmerican Airlines
Wed 9/117:40 amSNN - STL
2 stops17h 50mAmerican Airlines
Deal found 6/5$622
Fri 10/252:38 pmSTL - SNN
2 stops14h 42mAmerican Airlines
Sat 11/27:45 amSNN - STL
2 stops18h 46mAmerican Airlines
Deal found 6/5$629
Wed 9/412:55 pmSTL - SNN
2 stops15h 35mUnited Airlines
Wed 9/119:30 amSNN - STL
2 stops19h 26mUnited Airlines
Deal found 6/4$674
Fri 8/26:09 pmSTL - SNN
2 stops15h 36mAmerican Airlines
Thu 8/157:40 amSNN - STL
2 stops18h 07mAmerican Airlines
Deal found 6/6$701
Sat 7/136:30 amSTL - SNN
2 stops22h 20mDelta
Thu 7/2512:50 pmSNN - STL
2 stops26h 12mDelta
Deal found 6/5$705
Thu 9/126:14 pmSTL - SNN
2 stops15h 56mAmerican Airlines
Mon 9/239:25 pmSNN - STL
2 stops24h 12mAmerican Airlines
Deal found 6/5$720
Fri 8/2312:55 pmSTL - SNN
1 stop12h 35mUnited Airlines
Tue 9/39:30 amSNN - STL
1 stop16h 17mUnited Airlines
Deal found 6/6$730
Fri 8/236:15 amSTL - SNN
2 stops19h 15mUnited Airlines
Tue 9/39:30 amSNN - STL
1 stop11h 23mUnited Airlines
Deal found 6/6$734

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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$622 - $1,708

Route

Depart

Return

Price

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 9/4

2 stops16h 00m

Shannon

Wed 9/11

2 stops17h 50m

$622

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Fri 10/25

2 stops14h 42m

Shannon

Sat 11/2

2 stops18h 46m

$629

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 9/4

2 stops15h 35m

Shannon

Wed 9/11

2 stops19h 26m

$674

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sat 7/13

2 stops22h 20m

Shannon

Thu 7/25

2 stops26h 12m

$705

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 9/12

2 stops15h 56m

Shannon

Mon 9/23

2 stops24h 12m

$720

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Wed 9/4

1 stop32h 10m

Shannon

Wed 9/11

1 stop12h 19m

$735

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 9/12

1 stop10h 58m

Shannon

Mon 9/23

1 stop18h 22m

$790

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Fri 10/25

2 stops17h 20m

Shannon

Sat 11/2

3 stops18h 36m

$831

Lambert-St LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sat 7/13

2 stops18h 05m

Shannon

Thu 7/25

3 stops19h 57m

$1,708

Flights are sorted by cheapest first

Deals found on 6/5

What is the cheapest day to fly from St. Louis to Shannon?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Shannon. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Shannon flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Shannon by month

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

SNN

Temperature

42.8 - 60.8 °F

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 June 6, 2024.
Get a feel of what it's like to fly with American Airlines, United Airlines and Air Canada from St. Louis to Shannon by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,227 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air Canada
7.0
Good
7,044 reviews
Delta
8.0
Very good
10,368 reviews

Entertainment

8.0

Crew

8.6

Overall

8.0

Food

7.4

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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 $700 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Shannon for under $700. The cheapest flight booked recently is on American Airlines for just $622, but on average you can expect to pay $880.

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

    According to our current data, American Airlines ($622), United Airlines ($674), and Delta ($705) offers the cheapest pricing from St. Louis to Shannon.

  • 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.

  • How recently were the St. Louis to Shannon flight deals updated?

    The St. Louis to Shannon flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from St. Louis to Shannon?

    The most popular airlines flying from St. Louis to Shannon are American Airlines, Lufthansa and United Airlines. Something to consider prior to booking your flight.

  • 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 $533). Flying from St. Louis to Shannon in June is currently the most expensive (average of $1,017). 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 St. Louis to Shannon
See prices for flight routes from nearby airports that may be better suited for you.

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Top 3 airlines flying from St. Louis to Shannon

Discover the top 3 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$542Average$1,102FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$577Average$870FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$942Average$1,110FlexibilityNo cancel feeOn-time76%
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Search flights from St. Louis to Shannon by cabin class

Find flights from St. Louis to Shannon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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