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Bonn

$453+ 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 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/29. 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.
Thu 2/2612:15 pm
STL
-
DUS
2 stops14h 40m
Lufthansa
Sun 3/86:20 am
DUS
-
STL
1 stop14h 35m
Lufthansa
Deal found 1/29$574
This oojo deal was found by Cheapflights users on 1/27. 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 2/262:19 pm
STL
-
DUS
2 stops13h 56m
British Airways
Sun 3/88:30 pm
DUS
-
STL
2 stops33h 18m
British Airways
Deal found 1/27$583
This Finnair deal was found by Cheapflights users on 1/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:12 am
STL
-
DUS
2 stops29h 43m
Multiple Airlines
Sun 3/86:40 pm
DUS
-
STL
2 stops35h 18m
Multiple Airlines
Deal found 1/28$593
This KAYAK deal was found by Cheapflights users on 1/27. 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.
Sat 2/286:36 pm
STL
-
DUS
2 stops31h 49m
British Airways
Sun 3/810:35 am
DUS
-
STL
2 stops19h 09m
British Airways
Deal found 1/27$615
This Gotogate deal was found by Cheapflights users on 1/27. 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.
Sat 2/284:05 pm
STL
-
DUS
2 stops35h 25m
Multiple Airlines
Sun 3/86:20 am
DUS
-
STL
1 stop14h 35m
Multiple Airlines
Deal found 1/27$621
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 3/16:55 pm
STL
-
DUS
2 stops14h 45m
United Airlines
Sun 3/88:30 am
DUS
-
STL
1 stop12h 25m
United Airlines
Deal found 1/28$636
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Thu 5/71:00 pm
STL
-
DUS
2 stops21h 10m
Multiple Airlines
Thu 5/143:10 pm
DUS
-
STL
1 stop29h 15m
Multiple Airlines
Deal found 1/27$645
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 5/79:00 am
STL
-
DUS
2 stops17h 40m
United Airlines
Thu 5/147:30 am
DUS
-
STL
2 stops20h 38m
United Airlines
Deal found 1/27$649

Find 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 January 29, 2026.

Round-trip from

$574
(Cheapflightsfares)

One-way from

$453
(American Airlines)

Popular in

July

Cheapest in

October
From Lambert-St Louis to Bonn
Search Deals
One-way flight from Lambert-St Louis to Bonn
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
Search Deals

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 January 29, 2026.
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

Thu 2/26

12:15 pm-9:55 am

2 stops14h 40m

Duesseldorf Intl

Sun 3/8

6:20 am-1:55 pm

1 stop14h 35m

$574

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Thu 2/26

2:19 pm-11:15 am

2 stops13h 56m

Duesseldorf Intl

Sun 3/8

8:30 pm-11:48 pm

2 stops33h 18m

$583

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sun 3/1

5:12 am-5:55 pm

2 stops29h 43m

Duesseldorf Intl

Sun 3/8

6:40 pm-11:58 pm

2 stops35h 18m

$593

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sun 3/1

11:46 am-5:55 pm

2 stops23h 09m

Duesseldorf Intl

Sun 3/8

6:40 pm-7:29 pm

2 stops30h 49m

$593

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sat 2/28

6:36 pm-9:25 am

2 stops31h 49m

Duesseldorf Intl

Sun 3/8

10:35 am-11:44 pm

2 stops19h 09m

$615

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sun 3/1

6:55 pm-4:40 pm

2 stops14h 45m

Duesseldorf Intl

Sun 3/8

8:30 am-1:55 pm

1 stop12h 25m

$636

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Thu 5/7

1:00 pm-5:10 pm

2 stops21h 10m

Duesseldorf Intl

Thu 5/14

3:10 pm-1:25 pm

1 stop29h 15m

$645

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Thu 5/7

9:00 am-9:40 am

2 stops17h 40m

Duesseldorf Intl

Thu 5/14

7:30 am-9:08 pm

2 stops20h 38m

$649

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Wed 5/20

8:53 am-9:45 am

2 stops17h 52m

$470

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Wed 5/20

8:13 pm-9:45 am

3 stops30h 32m

$558

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 12 results
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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, August is the cheapest month in which you can book a flight from St. Louis to Bonn (average of $581). Flying from St. Louis to Bonn in May is currently the most expensive (average of $870). 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 January 29, 2026.

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?

    Lufthansa and British Airways can get you from St. Louis to Bonn in just under 13h 56m. Your travel time can differ by up to 44m. 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 $1,747, our data shows the cheapest flight currently is $355. When looking at the most popular route, (Lambert-St Louis - Duesseldorf Intl), you can expect to pay $583 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, August is the cheapest month in which you can book a flight from St. Louis to Bonn (average of $581). Flying from St. Louis to Bonn in May is currently the most expensive (average of $870). 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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St. Louis to Dresden flights
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St. Louis to Nuremberg flights
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Joplin to Munich flights
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$390Average$946FlexibilityNo cancel feeOn-time71%
DeltaCheapest$610Average$919FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$648Average$946FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$739Average$1,134FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$816Average$1,322FlexibilityNo cancel feeOn-time76%
KLMCheapest$841Average$1,115FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$921Average$1,202FlexibilityNo cancel feeOn-time67%

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