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$238+ Cheap flights from St. Louis (STL) to Basel EuroAirport Swiss (BSL)

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
1 adult, Economy
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Cheap 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 January 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$468
(Expedia)

One-way from

$238
(Kiwi.com)
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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One-way flight from Lambert-St Louis to Basel EuroAirport Swiss
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Find flight deals from St. Louis to Basel

Cheapest flights from St. Louis to Basel
Explore the most affordable flight options available from St. Louis to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 6, 2026.

This Expedia deal was found by Cheapflights users on 1/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:36 pmSTL - BSL
2 stops15h 29mBritish Airways
Fri 2/2711:15 amBSL - STL
2 stops18h 43mBritish Airways
Deal found 1/6$468
This KLM deal was found by Cheapflights users on 1/6. 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.
Sun 3/15:50 pmSTL - BSL
2 stops13h 00mMultiple Airlines
Sun 3/86:05 amBSL - STL
2 stops17h 48mMultiple Airlines
Deal found 1/6$477
This FlightHub deal was found by Cheapflights users on 1/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:28 amSTL - BSL
2 stops15h 42mLufthansa
Wed 3/186:45 amBSL - STL
1 stop14h 10mLufthansa
Deal found 1/5$481
This oojo deal was found by Cheapflights users on 1/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:54 pmSTL - BSL
2 stops17h 01mBritish Airways
Wed 2/116:20 amBSL - STL
2 stops23h 24mBritish Airways
Deal found 1/5$486
This British Airways deal was found by Cheapflights users on 1/5. 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.
Fri 1/2312:11 pmSTL - BSL
2 stops18h 59mBritish Airways
Tue 1/277:00 amBSL - STL
2 stops18h 34mBritish Airways
Deal found 1/5$628
This United Airlines deal was found by Cheapflights users on 1/4. 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 1/236:40 pmSTL - BSL
2 stops14h 25mUnited Airlines
Tue 1/279:50 amBSL - STL
2 stops21h 09mUnited Airlines
Deal found 1/4$700
This Cheapflightsfares deal was found by Cheapflights users on 1/5. 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.
Thu 3/512:15 pmSTL - BSL
2 stops14h 40mMultiple Airlines
Mon 3/91:10 pmBSL - STL
2 stops16h 41mMultiple Airlines
Deal found 1/5$757
This oojo deal was found by Cheapflights users on 1/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:00 pmSTL - BSL
1 stop17h 50mBritish Airways
Wed 8/266:40 amBSL - STL
1 stop19h 50mBritish Airways
Deal found 1/6$844

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 January 6, 2026.
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

Fri 2/20

6:36 pm-5:05 pm

2 stops15h 29m

Basel EuroAirport Swiss

Fri 2/27

11:15 am-10:58 pm

2 stops18h 43m

$468

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 3/1

5:50 pm-1:50 pm

2 stops13h 00m

Basel EuroAirport Swiss

Sun 3/8

6:05 am-4:53 pm

2 stops17h 48m

$477

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 3/11

11:28 am-9:10 am

2 stops15h 42m

Basel EuroAirport Swiss

Wed 3/18

6:45 am-2:55 pm

1 stop14h 10m

$481

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Thu 2/19

6:36 pm-7:05 pm

2 stops17h 29m

Basel EuroAirport Swiss

Thu 2/26

6:05 am-6:00 pm

2 stops18h 55m

$486

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 2/4

2:54 pm-2:55 pm

2 stops17h 01m

Basel EuroAirport Swiss

Wed 2/11

6:20 am-10:44 pm

2 stops23h 24m

$486

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/23

12:11 pm-2:10 pm

2 stops18h 59m

Basel EuroAirport Swiss

Tue 1/27

7:00 am-6:34 pm

2 stops18h 34m

$628

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 1/23

6:40 pm-4:05 pm

2 stops14h 25m

Basel EuroAirport Swiss

Tue 1/27

9:50 am-11:59 pm

2 stops21h 09m

$700

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Thu 3/5

12:15 pm-9:55 am

2 stops14h 40m

Basel EuroAirport Swiss

Mon 3/9

1:10 pm-11:51 pm

2 stops16h 41m

$757

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 2/23

3:49 pm-8:40 pm

3 stops45h 51m

$238

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sat 2/21

3:49 pm-8:45 pm

3 stops45h 56m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 19 results
1
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  • 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 British Airways and Lufthansa fly from St. Louis to Basel EuroAirport Swiss in about 15h 29m. The time it takes to get you to your destination can typically vary by up to 13m. Airlines will cover a distance of 4630 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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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