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Bonn

$1,102+ Cheap flights from St. Louis (STL) to Bonn, Germany

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
avr. 27 — mai 41
dim. 4/27
dim. 5/4
1 adult, Economy
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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 avril 22, 2025.

This United Airlines deal was found by Cheapflights users on 4/21. 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.
ven. 10/103:30 pmSTL - DUS
2 stops15h 35mUnited Airlines
ven. 10/246:00 amDUS - STL
2 stops16h 18mUnited Airlines
Deal found 4/21$1,102
This Lufthansa deal was found by Cheapflights users on 4/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/103:30 pmSTL - DUS
1 stop11h 40mLufthansa
ven. 10/246:00 amDUS - STL
1 stop14h 30mLufthansa
Deal found 4/21$1,110
This Expedia deal was found by Cheapflights users on 4/21. 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.
jeu. 7/34:23 pmSTL - DUS
2 stops16h 12mBritish Airways
mar. 7/156:55 pmDUS - STL
2 stops31h 13mBritish Airways
Deal found 4/21$1,355

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 $1,079). 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 avril 22, 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.

Rainfall in Bonn by month

Plan your trip to Bonn by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bonn ranges from 1.2 - 3.1 inches per month. July is typically the wettest month, when rainfall can reach 3.1 in. March is typically the driest time to visit Bonn when rainfall is around 1.2 in.

Temperature in Bonn by month

Plan your trip to Bonn by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bonn, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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.

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

    While on average a flight from St. Louis to Bonn is generally $1,904, our data shows the cheapest flight currently is $504. When looking at the most popular route, (Lambert-St Louis - Duesseldorf Intl), you can expect to pay $830 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 $1,079). 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.

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Alternative routes for St. Louis to Bonn

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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 avril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$576Average$983FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$629Average$969FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$649Average$1,367FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$788Average$1,166FlexibilityNo cancel feeOn-time69%
KLMCheapest$877Average$1,064FlexibilityNo cancel feeOn-time75%
DeltaCheapest$912Average$1,261FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$921Average$1,303FlexibilityNo cancel feeOn-time67%

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