Bonn

$434+ Cheap flights from Chicago (CHI) 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FRA
Apr 7 — Apr 141
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Chicago to Bonn are usually found in January or March, booked 51 days in advance, depart on a Monday or Sunday and return on a Sunday

Cheap flight deals from Chicago to Bonn

Keep the following information in mind while searching for Chicago to Bonn flight deals. Data was last updated April 2, 2025.

Round-trip from

$661
(Gotogate)

One-way from

$434
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$717
From Chicago (CHI) to Bonn
One-way flight from Chicago (CHI) to Bonn
Highest demand for flights based on searches. 26% potential increase in price ($293 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Chicago to Bonn

Cheapest flights from Chicago to Bonn
Explore the most affordable flight options available from Chicago to Bonn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This Gotogate deal was found by Cheapflights users on 3/31. 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.
Mon 5/127:15 pmORD - DUS
1 stop16h 30mScandinavian Airlines
Tue 5/2710:10 amDUS - ORD
1 stop13h 00mScandinavian Airlines
Deal found 3/31$661
This Finnair deal was found by Cheapflights users on 4/1. 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.
Mon 5/55:40 pmORD - DUS
1 stop14h 40mMultiple Airlines
Tue 5/2011:55 amDUS - ORD
1 stop12h 55mMultiple Airlines
Deal found 4/1$666
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Mon 5/129:15 pmORD - DUS
1 stop13h 45mAmerican Airlines
Tue 5/276:20 amDUS - ORD
1 stop14h 55mAmerican Airlines
Deal found 4/1$685
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/124:44 pmORD - DUS
2 stops15h 36mBritish Airways
Tue 5/2710:50 amDUS - ORD
1 stop12h 05mBritish Airways
Deal found 4/1$705
This StudentUniverse deal was found by Cheapflights users on 4/1. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/15:10 pmORD - DUS
2 stops17h 50mFinnair
Thu 5/88:25 amDUS - ORD
1 stop16h 25mFinnair
Deal found 4/1$734
This oojo deal was found by Cheapflights users on 4/1. 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.
Fri 8/17:50 pmORD - DUS
1 stop16h 20mTurkish Airlines
Fri 8/152:50 pmDUS - ORD
1 stop25h 50mTurkish Airlines
Deal found 4/1$795
This Gotogate deal was found by Cheapflights users on 4/1. 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.
Mon 5/123:35 pmORD - DUS
2 stops15h 55mAir Canada
Tue 5/2710:55 amDUS - ORD
2 stops16h 17mAir Canada
Deal found 4/1$894
This oojo deal was found by Cheapflights users on 4/1. 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.
Mon 5/128:40 pmORD - DUS
2 stops40h 40mAer Lingus
Wed 5/2110:25 amDUS - ORD
2 stops29h 09mAer Lingus
Deal found 4/1$913
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/75:50 pmORD - DUS
1 stop16h 50mUnited Airlines
Mon 4/283:10 pmDUS - ORD
2 stops24h 45mUnited Airlines
Deal found 4/1$956
This Austrian Airlines deal was found by Cheapflights users on 4/1. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/44:20 pmORD - DUS
1 stop14h 55mAustrian Airlines
Sun 4/138:25 pmDUS - ORD
1 stop23h 55mAustrian Airlines
Deal found 4/1$966
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/131:00 pmMDW - DUS
2 stops11h 40mDelta
Wed 8/206:20 amDUS - MDW
2 stops15h 36mDelta
Deal found 4/1$1,214
This Icelandair deal was found by Cheapflights users on 4/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/810:15 pmORD - DUS
2 stops28h 15mIcelandair
Fri 6/137:25 pmDUS - ORD
2 stops29h 50mIcelandair
Deal found 4/1$1,484

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 April 2, 2025.
Use the filters below to find and compare flights from Chicago to Bonn that are best for you.

Fly from

Chicago

Fly to

Bonn

Route

Depart

Return

Price

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 5/12

7:15 pm-6:45 pm

1 stop16h 30m

Duesseldorf Intl

Tue 5/27

10:10 am-4:10 pm

1 stop13h 00m

$661

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 5/5

5:40 pm-3:20 pm

1 stop14h 40m

Duesseldorf Intl

Tue 5/20

11:55 am-5:50 pm

1 stop12h 55m

$666

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 5/12

9:15 pm-6:00 pm

1 stop13h 45m

Duesseldorf Intl

Tue 5/27

6:20 am-2:15 pm

1 stop14h 55m

$685

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 5/12

4:44 pm-3:20 pm

2 stops15h 36m

Duesseldorf Intl

Tue 5/27

10:50 am-3:55 pm

1 stop12h 05m

$705

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Thu 5/1

5:10 pm-6:00 pm

2 stops17h 50m

Duesseldorf Intl

Thu 5/8

8:25 am-5:50 pm

1 stop16h 25m

$734

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Fri 8/1

7:50 pm-7:10 pm

1 stop16h 20m

Duesseldorf Intl

Fri 8/15

2:50 pm-9:40 am

1 stop25h 50m

$795

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 5/12

3:35 pm-2:30 pm

2 stops15h 55m

Duesseldorf Intl

Tue 5/27

10:55 am-8:12 pm

2 stops16h 17m

$894

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 5/12

8:40 pm-8:20 pm

2 stops40h 40m

Duesseldorf Intl

Wed 5/21

10:25 am-8:34 am

2 stops29h 09m

$913

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Sun 6/15

10:40 am-2:20 pm

2 stops20h 40m

Duesseldorf Intl

Fri 6/27

6:00 am-2:55 pm

1 stop15h 55m

$956

ChicagoDüsseldorf

MDW - DUS

MDWDUS

Chicago Midway

Wed 8/13

1:00 pm-7:40 am

2 stops11h 40m

Duesseldorf Intl

Wed 8/20

6:20 am-2:56 pm

2 stops15h 36m

$1,214

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 18 results
1
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Best time to book a flight from Chicago to Bonn

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

How far ahead should I book a flight from Chicago to Bonn?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Bonn. Price data was last updated on March 28, 2025.

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Bonn. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago to Bonn?

Currently, January is the cheapest month in which you can book a flight from Chicago to Bonn (average of $729). Flying from Chicago 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 CHI to BN9?

Find hourly flight availability from Chicago 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 April 2, 2025.

When flying from Chicago to Bonn, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Chicago to Bonn?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Bonn. Price data was last updated on October 6, 2024.

Travelers seeking maximum savings on their Chicago to Bonn flight should consider departing on Monday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Bonn

Explore weekly flight availability from Chicago to Bonn. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 2, 2025.

The most flights from CHI to BN9 are scheduled on a Monday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

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 April 2, 2025.
To help decide which airline to fly from Chicago to Bonn, see what other customers have to say about Delta, Finnair and SWISS. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Bonn. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the most reliable airlines from Chicago to Bonn?

    No one likes to see their flight delayed. When booking a flight from Chicago to Bonn consider choosing Lufthansa (81%), Air Canada (77%) or United Airlines (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chicago to Bonn?

    On average you can expect to pay $4,194 for a flight from Chicago to Bonn. The cheapest flight overall is $476 while the most popular route, (Chicago O'Hare Intl - Duesseldorf Intl) is currently priced at $524.

  • Can I find deals for flights from Chicago to Bonn that include hotel bookings?

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

  • How can I find direct flights from Chicago to Bonn?

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

  • Can I find deals for business class flights from Chicago to Bonn?

    Yes. Cheapflights offers flight deals from Chicago 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 Chicago to Bonn?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Bonn (average of $729). Flying from Chicago 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chicago to Bonn

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Chicago to Bonn

Discover the top 10 airlines that operate flights from Chicago 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$264Average$637FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$678FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$715FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$498Average$863FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$560Average$762FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$591Average$823FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$609Average$767FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$631Average$1,137FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$640Average$1,119FlexibilityNo cancel feeOn-time69%
LOTCheapest$698Average$1,025FlexibilityNo cancel feeOn-time81%

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