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$595+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BSL
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$646
(Cheapflightsfares)

One-way from

$595
(United Airlines)
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 August 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 10/264:50 pmSTL - BSL
1 stop11h 05mLufthansa
Sun 11/96:45 amBSL - STL
1 stop14h 10mLufthansa
Deal found 8/16$646
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/262:15 pmSTL - BSL
2 stops18h 50mAmerican Airlines
Sun 11/96:35 amBSL - STL
2 stops19h 52mAmerican Airlines
Deal found 8/16$664
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:41 pmSTL - BSL
2 stops20h 09mAmerican Airlines
Wed 10/296:20 amBSL - STL
2 stops20h 00mAmerican Airlines
Deal found 8/17$734
This Ovago deal was found by Cheapflights users on 8/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:30 pmSTL - BSL
1 stop12h 25mMultiple Airlines
Wed 10/296:45 amBSL - STL
1 stop14h 10mMultiple Airlines
Deal found 8/17$735
This Gurufare deal was found by Cheapflights users on 8/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:30 pmSTL - BSL
1 stop12h 25mLufthansa
Wed 10/296:45 amBSL - STL
1 stop14h 10mLufthansa
Deal found 8/16$736
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:30 pmSTL - BSL
1 stop15h 10mLufthansa
Wed 10/16:05 amBSL - STL
1 stop14h 25mLufthansa
Deal found 8/16$742
This Air Canada deal was found by Cheapflights users on 8/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:30 pmSTL - BSL
2 stops14h 20mAir Canada
Tue 9/3011:25 amBSL - STL
2 stops15h 32mAir Canada
Deal found 8/16$746

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 August 18, 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

Sun 10/26

4:50 pm-9:55 am

1 stop11h 05m

Basel EuroAirport Swiss

Sun 11/9

6:45 am-1:55 pm

1 stop14h 10m

$646

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Sun 10/26

4:34 pm-3:05 pm

2 stops16h 31m

Basel EuroAirport Swiss

Sun 11/9

6:35 am-7:29 pm

2 stops19h 54m

$664

St. LouisBasel

STL - BSL

STLBSL

Lambert-St Louis

Wed 10/1

3:30 pm-10:55 am

1 stop12h 25m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Basel EuroAirport Swiss?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Basel EuroAirport Swiss (average of $545). Flying from St. Louis to Basel EuroAirport Swiss in June is currently the most expensive (average of $1,132). 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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