Bonn

$680+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FRA
Jan 22 — Jan 291
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Cheap flight deals from St. Louis to Bonn

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bonn (BN9). 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 17, 2025.

Round-trip from

$737
(Gotogate)

Popular in

June

Cheapest in

March

Average price

$1,582
From Lambert-St Louis to Bonn
High demand for flights, 20% potential price rise
Best time to find cheap flights, 8% potential price drop
Average for round-trip flights in January 2025

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 January 17, 2025.

This Finnair deal was found by Cheapflights users on 1/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1810:49 amSTL - DUS
2 stops17h 51mMultiple Airlines
Tue 2/256:40 pmDUS - STL
2 stops35h 03mMultiple Airlines
Deal found 1/16$680
This Ovago deal was found by Cheapflights users on 1/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/113:30 pmSTL - DUS
2 stops16h 20mScandinavian Airlines
Sat 9/206:05 amDUS - STL
2 stops24h 34mScandinavian Airlines
Deal found 1/16$924
This Gotogate deal was found by Cheapflights users on 1/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/224:05 pmSTL - DUS
2 stops15h 25mAir Canada
Thu 7/319:40 amDUS - STL
2 stops17h 00mAir Canada
Deal found 1/16$1,731
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 5/224:05 pmSTL - DUS
2 stops18h 55mUnited Airlines
Fri 8/16:00 amDUS - STL
1 stop14h 30mUnited Airlines
Deal found 1/16$1,805

Find flights from St. Louis to Bonn within your budget

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 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Thu 2/13

3:50 pm-1:35 pm

2 stops14h 45m

Duesseldorf Intl

Thu 2/20

11:55 am-11:32 pm

2 stops18h 37m

$737

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Sun 3/16

4:45 pm-5:45 pm

1 stop19h 00m

Duesseldorf Intl

Sat 3/22

2:40 pm-3:31 pm

2 stops30h 51m

$893

St. LouisDüsseldorf

STL - DUS

STLDUS

Lambert-St Louis

Thu 5/22

4:05 pm-2:30 pm

2 stops15h 25m

Duesseldorf Intl

Thu 7/31

9:40 am-7:40 pm

2 stops17h 00m

$1,731

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

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.

Travel insights for flights from St. Louis to Bonn

Get recent, data-driven insights about flights from St. Louis to Bonn including ideal travel times, pricing trends, and more.

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 $1,112). 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 17, 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).

Reviews of airlines servicing Bonn

Get insights into the airlines that provide service to Bonn. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bonn. Reviews last updated January 17, 2025.
7.4
Good
8,964 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.7

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

7.4
Good
8,964 reviews
7.4
Good
8,964 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.7

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

7.0
Good
8,587 reviews
7.4
Good
8,964 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.7

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

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 $1,403, our data shows the cheapest flight currently is $524. When looking at the most popular route, (Lambert-St Louis - Duesseldorf Intl), you can expect to pay $747 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 $1,112). 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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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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$575Average$961FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$585Average$1,332FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$586Average$825FlexibilityNo cancel feeOn-time70%
DeltaCheapest$665Average$1,000FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$779Average$1,183FlexibilityNo cancel feeOn-time69%
KLMCheapest$845Average$1,093FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$949Average$1,264FlexibilityNo cancel feeOn-time67%
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