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$550+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap 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 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. 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 1/301:15 pm
STL
-
BSL
2 stops19h 50m
United Airlines
Tue 2/39:50 am
BSL
-
STL
2 stops21h 09m
United Airlines
Deal found 1/19$550
This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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.
Fri 2/206:45 pm
STL
-
BSL
2 stops14h 20m
Lufthansa
Thu 2/262:10 pm
BSL
-
STL
2 stops16h 49m
Lufthansa
Deal found 1/19$730
This Gotogate deal was found by Cheapflights users on 1/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:10 pm
STL
-
BSL
2 stops18h 45m
Multiple Airlines
Fri 8/216:00 am
BSL
-
STL
1 stop14h 25m
Multiple Airlines
Deal found 1/18$835
This oojo deal was found by Cheapflights users on 1/18. 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.
Thu 8/137:23 am
STL
-
BSL
2 stops20h 32m
British Airways
Fri 8/216:00 am
BSL
-
STL
2 stops24h 42m
British Airways
Deal found 1/18$844
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Fri 8/143:30 pm
STL
-
BSL
1 stop11h 50m
Lufthansa
Wed 8/268:25 am
BSL
-
STL
1 stop12h 00m
Lufthansa
Deal found 1/20$852
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Fri 8/143:30 pm
STL
-
BSL
1 stop11h 50m
Multiple Airlines
Wed 8/2611:10 am
BSL
-
STL
2 stops15h 52m
Multiple Airlines
Deal found 1/20$861
This United Airlines deal was found by Cheapflights users on 1/20. 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 8/146:49 pm
STL
-
BSL
2 stops34h 36m
United Airlines
Wed 8/266:10 am
BSL
-
STL
2 stops22h 56m
United Airlines
Deal found 1/20$863
This Condor deal was found by Cheapflights users on 1/19. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:15 am
STL
-
BSL
2 stops14h 35m
Multiple Airlines
Mon 6/88:20 am
BSL
-
STL
2 stops19h 35m
Multiple Airlines
Deal found 1/19$1,163
This Trip.com deal was found by Cheapflights users on 1/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/195:04 pm
STL
-
BSL
2 stops18h 11m
British Airways
Mon 1/266:15 am
BSL
-
STL
2 stops22h 00m
British Airways
Deal found 1/18$1,194
This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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.
Fri 6/193:30 pm
STL
-
BSL
1 stop11h 50m
Lufthansa
Fri 7/38:25 am
BSL
-
STL
1 stop12h 00m
Lufthansa
Deal found 1/19$1,297
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:49 pm
STL
-
BSL
2 stops17h 51m
Multiple Airlines
Tue 6/98:15 am
BSL
-
STL
1 stop12h 10m
Multiple Airlines
Deal found 1/19$1,304

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$550
(United Airlines)
Provider with most accurate pricing for Lambert-St Louis-Basel EuroAirport Swiss flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Basel EuroAirport Swiss flights.
Search Deals
From Lambert-St Louis to Basel EuroAirport Swiss
Search Deals

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 20, 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 1/30

1:15 pm-4:05 pm

2 stops19h 50m

Basel EuroAirport Swiss

Tue 2/3

9:50 am-11:59 pm

2 stops21h 09m

$550

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 2/20

6:45 pm-4:05 pm

2 stops14h 20m

Basel EuroAirport Swiss

Thu 2/26

2:10 pm-11:59 pm

2 stops16h 49m

$730

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Tue 5/26

10:15 am-7:50 am

2 stops14h 35m

Basel EuroAirport Swiss

Mon 6/8

8:20 am-8:55 pm

2 stops19h 35m

$1,163

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Fri 6/19

3:30 pm-10:20 am

1 stop11h 50m

Basel EuroAirport Swiss

Fri 7/3

8:25 am-1:25 pm

1 stop12h 00m

$1,297

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 5/27

6:49 pm-6:10 pm

2 stops16h 21m

Basel EuroAirport Swiss

Tue 6/9

8:15 am-1:25 pm

1 stop12h 10m

$1,316

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 5/25

5:30 pm-1:45 pm

2 stops13h 15m

Basel EuroAirport Swiss

Wed 6/10

6:20 am-11:38 pm

2 stops24h 18m

$1,326

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 5/24

12:10 pm-1:45 pm

2 stops18h 35m

Basel EuroAirport Swiss

Thu 6/11

6:20 am-4:49 pm

2 stops17h 29m

$1,326

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 5/24

12:10 pm-1:45 pm

2 stops18h 35m

Basel EuroAirport Swiss

Wed 6/10

6:20 am-3:58 pm

2 stops16h 38m

$1,326

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 5/24

9:00 am-9:55 am

2 stops17h 55m

Basel EuroAirport Swiss

Tue 6/9

6:20 am-8:31 pm

2 stops21h 11m

$1,326

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Mon 5/25

9:00 am-9:55 am

2 stops17h 55m

Basel EuroAirport Swiss

Thu 6/11

6:20 am-3:58 pm

2 stops16h 38m

$1,326

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 12 results
1
2
  • 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 and Lufthansa fly from St. Louis to Basel EuroAirport Swiss in about 14h 20m. The time it takes to get you to your destination can typically vary by up to 5h 30m. 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.

See more FAQs

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