SNN - STL

Find Cheap Flights from Shannon to St. Louis – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Shannon to St. Louis (SNN-STL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Shannon to St. Louis

Multiple Airlines Logo
SNN  Shannon Airport-STL St. Louis Lambert Airport
3824 mimulti-stop
Multiple Airlines Logo
STL  St. Louis Lambert Airport-SNN Shannon Airport
3824 mimulti-stop
Multiple Airlines
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Price, demand, and travel trends for Shannon to St. Louis flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest stopover airport when flying from Shannon to St. Louis?

Flights via Chicago O'Hare Intl (ORD) offer the most affordable fares, with an average return price of £1,018. Based on KAYAK data over the past 3 months.

When flying from Shannon to St. Louis, which airport offers the shortest stopover?

Chicago O'Hare Intl (ORD) had the shortest average connection time for Shannon to St. Louis stopovers at 6h 04m over the past 3 months.

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When to book flights from Shannon to St. Louis

Are your dates flexible? Find out the best times to travel from Shannon to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Shannon to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Do I need a passport to fly from Shannon to St. Louis?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Which car hire options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car hire companies, with daily rates starting from around £58 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Shannon to St. Louis?

    Flights from Shannon to St. Louis usually depart from Shannon (SNN) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Shannon to St. Louis pass through?

    Most connecting flights from Shannon to St. Louis pass through Chicago O'Hare Intl (ORD), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Shannon to St. Louis?

    Yes. Flexible dates can save you up to 62% on flights from Shannon to St. Louis. Monday is the cheapest departure day at £946 return on average, while Tuesday is the most expensive at £2,448, a difference of £1,502.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Shannon and St. Louis?

    St. Louis is 5 hours behind Shannon (Central Time vs Irish Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are St. Louis Union Station, Gateway Arch, and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Shannon to St. Louis flights

Get tips on when to book, when to fly, and what to know before your trip.

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Complete your trip to St. Louis with a hotel stay or car hire

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