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$473+ Cheap flights from St. Louis (STL) to Basel EuroAirport Swiss (BSL)

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from St. Louis to Basel

Best flights from St. Louis to Basel
Discover carefully curated flight deals from St. Louis to Basel that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:39 amSTL - BSL
2 stops14h 31mMultiple Airlines
Fri 3/62:20 pmBSL - STL
2 stops15h 39mMultiple Airlines
Deal found 12/28$473
This United Airlines deal was found by Cheapflights users on 12/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2311:20 amSTL - BSL
2 stops21h 45mUnited Airlines
Tue 1/279:50 amBSL - STL
2 stops21h 09mUnited Airlines
Deal found 12/28$700
This Lufthansa deal was found by Cheapflights users on 12/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/163:50 pmSTL - BSL
1 stop14h 45mLufthansa
Tue 1/209:50 amBSL - STL
2 stops16h 37mLufthansa
Deal found 12/29$708
This Cheapflightsfares deal was found by Cheapflights users on 12/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/283:50 pmSTL - BSL
1 stop11h 05mMultiple Airlines
Wed 2/410:35 amBSL - STL
2 stops15h 52mMultiple Airlines
Deal found 12/29$480
This Sembo deal was found by Cheapflights users on 12/29. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/161:15 pmSTL - BSL
2 stops19h 50mMultiple Airlines
Tue 1/201:55 pmBSL - STL
2 stops32h 34mMultiple Airlines
Deal found 12/29$690
This Cheapflightsfares deal was found by Cheapflights users on 12/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/111:39 amSTL - BSL
2 stops14h 31mMultiple Airlines
Fri 3/62:20 pmBSL - STL
2 stops15h 39mMultiple Airlines
Deal found 12/30$1,177
This Cheapflightsfares deal was found by Cheapflights users on 12/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:45 amSTL - BSL
2 stops14h 30mMultiple Airlines
Fri 6/52:30 pmBSL - STL
2 stops15h 14mMultiple Airlines
Deal found 12/29$1,538

Find flight deals from St. Louis to Basel

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Basel (BSL). 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 December 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$473
(Cheapflightsfares)
Provider with most accurate pricing for Lambert-St Louis-Basel EuroAirport Swiss flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Basel EuroAirport Swiss flights.
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From Lambert-St Louis to Basel EuroAirport Swiss
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Basel 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 December 31, 2025.
Use the filters below to find and compare flights from St. Louis to Basel EuroAirport Swiss that are best for you.

Fly from

St. Louis

Fly to

Basel

Route

Depart

Return

Price

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 2/23

11:39 am-9:10 am

2 stops14h 31m

Basel EuroAirport Swiss

Fri 3/6

2:20 pm-10:59 pm

2 stops15h 39m

$473

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 1/28

3:50 pm-9:55 am

1 stop11h 05m

Basel EuroAirport Swiss

Wed 2/4

10:35 am-7:27 pm

2 stops15h 52m

$480

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

1:15 pm-4:05 pm

2 stops19h 50m

Basel EuroAirport Swiss

Tue 1/20

1:55 pm-3:29 pm

2 stops32h 34m

$690

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/23

11:20 am-4:05 pm

2 stops21h 45m

Basel EuroAirport Swiss

Tue 1/27

9:50 am-11:59 pm

2 stops21h 09m

$700

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/16

3:50 pm-1:35 pm

1 stop14h 45m

Basel EuroAirport Swiss

Tue 1/20

9:50 am-7:27 pm

2 stops16h 37m

$708

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

11:39 am-9:10 am

2 stops14h 31m

Basel EuroAirport Swiss

Fri 3/6

2:20 pm-10:59 pm

2 stops15h 39m

$1,177

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 5/26

11:45 am-9:15 am

2 stops14h 30m

Basel EuroAirport Swiss

Fri 6/5

2:30 pm-10:44 pm

2 stops15h 14m

$1,538

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

  • Most accurate provider: When it comes to deals on St. Louis-Basel EuroAirport Swiss flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Basel EuroAirport Swiss flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Basel EuroAirport Swiss flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Basel EuroAirport Swiss flights, Cheapflights users trust FlightHub the most. FlightHub 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-Basel EuroAirport Swiss 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 Basel

Have a flexible travel schedule? Discover the best time to fly to Basel 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.

Related info for your journey

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

  • How long is the flight from St. Louis to Basel EuroAirport Swiss?

    Airlines like United Airlines fly from St. Louis to Basel EuroAirport Swiss in about 21h 45m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4630 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Basel by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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