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Bonn

$324+ Cheap flights from St. Louis (STL) to Bonn, Germany

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from St. Louis to Bonn

Keep the following information in mind while searching for St. Louis to Bonn flight deals. Data was last updated September 16, 2025.

Round-trip from

$621
(lastminute.com)

One-way from

$324
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$1,078
From Lambert-St Louis to Bonn
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One-way flight from Lambert-St Louis to Bonn
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Highest demand for flights based on searches. 17% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Bonn

Cheapest flights from St. Louis to Bonn
Explore the most affordable flight options available from St. Louis to Bonn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This lastminute.com deal was found by Cheapflights users on 9/15. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/73:59 pmSTL - DUS
2 stops34h 31mScandinavian Airlines
Fri 11/143:25 pmDUS - STL
2 stops37h 33mScandinavian Airlines
Deal found 9/15$621
This Finnair deal was found by Cheapflights users on 9/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:20 pmSTL - DUS
2 stops16h 35mMultiple Airlines
Wed 12/176:40 pmDUS - STL
2 stops31h 42mMultiple Airlines
Deal found 9/14$733
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Tue 10/143:59 pmSTL - DUS
2 stops15h 51mScandinavian Airlines
Tue 10/217:25 pmDUS - STL
2 stops33h 39mScandinavian Airlines
Deal found 9/14$856
This Gotogate deal was found by Cheapflights users on 9/15. 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.
Fri 11/74:05 pmSTL - DUS
2 stops19h 00mMultiple Airlines
Fri 11/146:30 amDUS - STL
1 stop14h 25mMultiple Airlines
Deal found 9/15$877
This Ovago deal was found by Cheapflights users on 9/14. 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.
Wed 12/33:50 pmSTL - DUS
1 stop10h 55mLufthansa
Wed 12/178:30 amDUS - STL
1 stop12h 25mLufthansa
Deal found 9/14$880
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 11/73:50 pmSTL - DUS
1 stop14h 45mLufthansa
Fri 11/146:30 amDUS - STL
1 stop14h 25mLufthansa
Deal found 9/15$903
This British Airways deal was found by Cheapflights users on 9/14. 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 12/1210:47 amSTL - DUS
2 stops19h 33mBritish Airways
Mon 12/158:40 pmDUS - STL
2 stops27h 10mBritish Airways
Deal found 9/14$950
This Finnair deal was found by Cheapflights users on 9/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:10 amSTL - DUS
2 stops24h 50mMultiple Airlines
Sun 10/198:25 amDUS - STL
2 stops16h 57mMultiple Airlines
Deal found 9/13$968
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/141:30 pmSTL - DUS
2 stops18h 00mUnited Airlines
Tue 10/219:40 amDUS - STL
2 stops19h 55mUnited Airlines
Deal found 9/16$994
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:00 pmSTL - DUS
2 stops18h 05mUnited Airlines
Sun 12/146:20 amDUS - STL
2 stops15h 05mUnited Airlines
Deal found 9/16$1,035

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Bonn 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 September 16, 2025.
Use the filters below to find and compare flights from St. Louis to Bonn that are best for you.

Fly from

St. Louis

Fly to

Bonn

Route

Depart

Return

Price

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Fri 11/7

3:59 pm-9:30 am

2 stops34h 31m

Duesseldorf Intl

Fri 11/14

3:25 pm-9:58 pm

2 stops37h 33m

$621

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Wed 12/3

1:20 pm-12:55 pm

2 stops16h 35m

Duesseldorf Intl

Wed 12/17

6:40 pm-7:22 pm

2 stops31h 42m

$733

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Fri 11/7

4:05 pm-6:05 pm

2 stops19h 00m

Duesseldorf Intl

Fri 11/14

6:30 am-1:55 pm

1 stop14h 25m

$877

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Wed 12/3

3:50 pm-9:45 am

1 stop10h 55m

Duesseldorf Intl

Wed 12/17

8:30 am-1:55 pm

1 stop12h 25m

$880

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Fri 11/7

3:50 pm-1:35 pm

1 stop14h 45m

Duesseldorf Intl

Fri 11/14

6:30 am-1:55 pm

1 stop14h 25m

$903

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Fri 12/12

10:47 am-4:30 pm

2 stops22h 43m

Duesseldorf Intl

Mon 12/15

8:10 pm-4:50 pm

2 stops27h 40m

$950

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sun 10/12

10:10 am-6:00 pm

2 stops24h 50m

Duesseldorf Intl

Sun 10/19

8:25 am-6:22 pm

2 stops16h 57m

$968

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Tue 10/14

1:30 pm-2:30 pm

2 stops18h 00m

Duesseldorf Intl

Tue 10/21

9:40 am-10:35 pm

2 stops19h 55m

$994

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Wed 12/10

1:00 pm-2:05 pm

2 stops18h 05m

Duesseldorf Intl

Sun 12/14

6:20 am-2:25 pm

2 stops15h 05m

$1,035

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sat 10/18

7:15 pm-12:25 pm

3 stops34h 10m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from St. Louis to Bonn

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

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Bonn

What is the cheapest month to book a flight from St. Louis to Bonn?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Bonn (average of $729). Flying from St. Louis to Bonn in June is currently the most expensive (average of $1,091). 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.

What is the cheapest time of day to fly from STL to BN9?

Find hourly flight availability from St. Louis to Bonn. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Bonn as you normally would.

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Bonn?

    For a flight from St. Louis to Bonn, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to Bonn per day. 7 airlines have flights to Bonn from Lambert-St Louis on a regular basis.

  • How long is the flight from St. Louis to Bonn?

    Scandinavian Airlines and Lufthansa can get you from St. Louis to Bonn in just under 10h 55m. Your travel time can differ by up to 23h 36m. The distance from St. Louis to Bonn is about 4466 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest flights from St. Louis to Bonn?

    While on average a flight from St. Louis to Bonn is generally $2,170, our data shows the cheapest flight currently is $466. When looking at the most popular route, (Lambert-St Louis - Duesseldorf Intl), you can expect to pay $621 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Bonn 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 Bonn?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Bonn (average of $729). Flying from St. Louis to Bonn in June is currently the most expensive (average of $1,091). 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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Alternative routes for St. Louis to Bonn

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from St. Louis to Bonn

Discover the top 7 airlines that operate flights from St. Louis to Bonn. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$610Average$1,182FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$663Average$1,090FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$706Average$969FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$783Average$1,105FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$787Average$1,131FlexibilityNo cancel feeOn-time69%
KLMCheapest$841Average$1,091FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,301FlexibilityNo cancel feeOn-time67%

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