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Bonn

$287+ 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FRA
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Bonn are usually found in January or November, booked 34 days in advance, depart on a Monday or Sunday and return on a Sunday

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 November 4, 2025.

This KAYAK deal was found by Cheapflights users on 11/2. 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 11/296:50 pmORD - DUS
1 stop31h 05mSWISS
Mon 12/89:45 amDUS - ORD
1 stop13h 35mSWISS
Deal found 11/2$581
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/279:50 pmORD - DUS
1 stop11h 50mUnited Airlines
Sun 12/72:40 pmDUS - ORD
2 stops16h 03mUnited Airlines
Deal found 11/2$584
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/611:01 amORD - DUS
2 stops15h 39mUnited Airlines
Mon 11/108:30 amDUS - ORD
2 stops15h 20mUnited Airlines
Deal found 11/4$588
This FlightHub deal was found by Cheapflights users on 11/4. 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 11/257:05 amORD - DUS
2 stops19h 40mMultiple Airlines
Tue 12/26:35 pmDUS - ORD
1 stop28h 45mMultiple Airlines
Deal found 11/4$590
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Thu 11/277:45 amORD - DUS
2 stops28h 00mScandinavian Airlines
Mon 12/87:25 pmDUS - ORD
2 stops33h 22mScandinavian Airlines
Deal found 11/2$609
This FlightHub deal was found by Cheapflights users on 11/3. 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.
Mon 11/247:20 pmORD - DUS
2 stops32h 50mScandinavian Airlines
Mon 12/111:50 amDUS - ORD
2 stops59h 55mScandinavian Airlines
Deal found 11/3$613
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Thu 11/277:45 amORD - DUS
2 stops18h 45mScandinavian Airlines
Sat 12/610:10 amDUS - ORD
2 stops30h 23mScandinavian Airlines
Deal found 11/2$615
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Tue 11/251:00 pmORD - DUS
2 stops21h 20mAustrian Airlines
Tue 12/99:50 amDUS - ORD
1 stop35h 10mAustrian Airlines
Deal found 11/2$618
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Fri 11/287:20 pmORD - DUS
1 stop31h 10mScandinavian Airlines
Mon 12/87:25 pmDUS - ORD
2 stops33h 22mScandinavian Airlines
Deal found 11/2$619
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Wed 11/264:20 pmORD - DUS
1 stop19h 50mAustrian Airlines
Sun 12/76:05 pmDUS - ORD
2 stops31h 25mAustrian Airlines
Deal found 11/2$624
This Delta deal was found by Cheapflights users on 11/4. 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.
Mon 11/241:15 pmMDW - DUS
2 stops17h 30mDelta
Tue 12/98:15 amDUS - MDW
2 stops17h 03mDelta
Deal found 11/4$1,069
This KLM deal was found by Cheapflights users on 11/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:14 pmMDW - DUS
2 stops11h 26mKLM
Thu 12/258:15 amDUS - MDW
2 stops16h 04mKLM
Deal found 11/3$1,410

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 November 4, 2025.

Round-trip from

$578
(Mytrip)

One-way from

$287
(oojo)

Popular in

June

Cheapest in

January

Average price

$616
From Chicago (CHI) to Bonn
Search Deals
One-way flight from Chicago (CHI) to Bonn
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 4, 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

Thu 2/19

12:00 pm-9:40 am

2 stops14h 40m

Duesseldorf Intl

Tue 2/24

6:20 am-2:55 pm

2 stops15h 35m

$580

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Thu 11/27

9:50 pm-4:40 pm

1 stop11h 50m

Duesseldorf Intl

Sun 12/7

2:40 pm-11:43 pm

2 stops16h 03m

$584

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Thu 1/1

9:50 pm-4:40 pm

1 stop11h 50m

Duesseldorf Intl

Fri 1/16

2:30 pm-11:39 pm

2 stops16h 09m

$586

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Sat 3/14

10:50 pm-5:40 pm

1 stop12h 50m

Duesseldorf Intl

Sun 3/22

6:20 am-8:04 am

2 stops31h 44m

$587

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Tue 11/25

9:50 pm-4:40 pm

1 stop11h 50m

Duesseldorf Intl

Tue 12/2

8:10 pm-4:20 pm

1 stop27h 10m

$591

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Sat 11/29

4:20 pm-9:05 am

1 stop33h 45m

Duesseldorf Intl

Sun 12/7

7:55 pm-6:30 pm

2 stops29h 35m

$624

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Wed 11/26

7:20 pm-2:45 pm

1 stop12h 25m

Duesseldorf Intl

Tue 12/9

10:10 am-9:47 pm

2 stops18h 37m

$699

ChicagoDüsseldorf

MDW - DUS

MDWDUS

Chicago Midway

Thu 1/1

9:29 am-7:40 am

2 stops15h 11m

Duesseldorf Intl

Fri 1/16

6:15 am-5:37 pm

2 stops18h 22m

$706

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Tue 4/14

3:45 pm-8:25 pm

3 stops21h 40m

Duesseldorf Intl

Tue 5/12

9:00 pm-4:00 pm

2 stops26h 00m

$723

ChicagoDüsseldorf

ORD - DUS

ORDDUS

Chicago O'Hare Intl

Mon 11/24

3:03 pm-11:40 am

2 stops13h 37m

Duesseldorf Intl

Tue 12/9

10:15 am-3:25 pm

1 stop12h 10m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 42 results
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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 October 31, 2025.

Booking 34 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, April is the cheapest month in which you can book a flight from Chicago to Bonn (average of $203). Flying from Chicago to Bonn in June is currently the most expensive (average of $738). 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 November 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago to Bonn at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the afternoon.

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 December 16, 2024.

Travelers seeking maximum savings on their Chicago to Bonn flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday afternoons 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 November 4, 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).

How much does it cost to fly round-trip from Chicago to Bonn?

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 November 4, 2025.
Read through reviews of airlines operating flights from Chicago to Bonn, such as Scandinavian Airlines, United Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,560 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
Scandinavian Airlines
7.4
Good
1,560 reviews
Scandinavian Airlines
7.4
Good
1,560 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
United Airlines
7.4
Good
9,002 reviews
Scandinavian Airlines
7.4
Good
1,560 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
Lufthansa
6.8
Okay
7,550 reviews
Scandinavian Airlines
7.4
Good
1,560 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
British Airways
6.7
Okay
7,496 reviews
Scandinavian Airlines
7.4
Good
1,560 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

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.

  • How long is the flight from Chicago to Bonn?

    Departing from Chicago to Bonn will take you 14h 40m. Airlines will cover a distance of 4215 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Chicago to Bonn one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $340. Users have also found prices from $364 and $369 on Air Canada and Scandinavian Airlines, respectively.

  • 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 (67%), Air Canada (65%) or United Airlines (65%) 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 $2,621 for a flight from Chicago to Bonn. The cheapest flight overall is $414 while the most popular route, (Chicago O'Hare Intl - Duesseldorf Intl) is currently priced at $486.

  • 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, April is the cheapest month in which you can book a flight from Chicago to Bonn (average of $203). Flying from Chicago to Bonn in June is currently the most expensive (average of $738). 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 Chicago to Bonn

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$791FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$333Average$632FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$429Average$807FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$467Average$736FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$744FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$495Average$814FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$579Average$927FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$581Average$897FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$591Average$892FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$623Average$698FlexibilityNo cancel feeOn-time77%

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