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Heidelberg

$221+ Cheap flights from Chicago (CHI) to Heidelberg, 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FRA
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Heidelberg are usually found in April or January, booked 89 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Chicago to Heidelberg

Keep the following information in mind while searching for Chicago to Heidelberg flight deals. Data was last updated septiembre 17, 2025.

Round-trip from

$642
(FlightHub)

One-way from

$221
(oojo)

Popular in

July

Cheapest in

April

Average price

$870
From Chicago (CHI) to Heidelberg
Search Deals
One-way flight from Chicago (CHI) to Heidelberg
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Highest demand for flights based on searches. 11% potential increase in price ($115 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to Heidelberg

Cheapest flights from Chicago to Heidelberg
Explore the most affordable flight options available from Chicago to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This FlightHub deal was found by Cheapflights users on 9/15. 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.
lun. 12/17:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
lun. 12/88:30 pmFRA - ORD
2 stops32h 16mScandinavian Airlines
Deal found 9/15$642
This Mytrip deal was found by Cheapflights users on 9/15. 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.
dom. 11/28:25 pmORD - FRA
1 stop19h 15mMultiple Airlines
jue. 11/68:00 pmFRA - ORD
2 stops26h 15mMultiple Airlines
Deal found 9/15$643
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/98:25 pmORD - FRA
1 stop13h 30mMultiple Airlines
mar. 11/2510:45 amFRA - ORD
2 stops35h 15mMultiple Airlines
Deal found 9/15$646
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/128:15 pmORD - FRA
1 stop19h 25mTAP AIR PORTUGAL
dom. 12/216:00 amFRA - ORD
1 stop15h 45mTAP AIR PORTUGAL
Deal found 9/16$648
This Scandinavian Airlines deal was found by Cheapflights users on 9/16. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/57:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
sáb. 11/158:30 pmFRA - ORD
1 stop27h 15mScandinavian Airlines
Deal found 9/16$650
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/318:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
lun. 11/108:30 pmFRA - ORD
2 stops32h 20mScandinavian Airlines
Deal found 9/16$652
This Mytrip deal was found by Cheapflights users on 9/15. 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.
mar. 11/46:00 amORD - FRA
3 stops23h 30mMultiple Airlines
mar. 11/1810:45 amFRA - ORD
2 stops35h 15mMultiple Airlines
Deal found 9/15$653
This oojo deal was found by Cheapflights users on 9/17. 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.
dom. 10/57:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
mar. 12/163:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 9/17$655
This Mytrip deal was found by Cheapflights users on 9/17. 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.
jue. 11/68:00 amORD - FRA
2 stops28h 20mMultiple Airlines
jue. 11/208:00 pmFRA - ORD
2 stops26h 10mMultiple Airlines
Deal found 9/17$656
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/247:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
dom. 12/288:30 pmFRA - ORD
1 stop27h 15mScandinavian Airlines
Deal found 9/16$657
This oojo deal was found by Cheapflights users on 9/15. 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.
dom. 10/268:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
jue. 10/303:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 9/15$658
This Booking.com deal was found by Cheapflights users on 9/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/83:45 pmORD - FRA
1 stop11h 30mAer Lingus
mié. 10/2210:55 amFRA - ORD
1 stop15h 05mAer Lingus
Deal found 9/17$659

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Heidelberg 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Chicago to Heidelberg that are best for you.

Fly from

Chicago

Fly to

Heidelberg

Route

Depart

Return

Price

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

jue. 2/12

7:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

jue. 2/26

8:30 pm-9:35 pm

2 stops32h 05m

$668

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

mié. 12/3

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

mar. 12/9

8:30 pm-9:39 pm

2 stops32h 09m

$668

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

dom. 11/9

7:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

dom. 11/23

6:55 am-4:45 pm

2 stops16h 50m

$678

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

lun. 12/1

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

lun. 12/8

6:55 am-4:45 pm

2 stops16h 50m

$678

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

mié. 10/29

11:10 pm-7:45 pm

1 stop14h 35m

Frankfurt am Main

mié. 11/5

6:55 am-4:45 pm

2 stops16h 50m

$688

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

vie. 2/13

7:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

vie. 2/27

7:55 am-9:35 pm

2 stops20h 40m

$722

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

dom. 1/18

10:40 am-2:30 pm

2 stops20h 50m

Frankfurt am Main

dom. 2/1

7:00 am-4:55 pm

2 stops16h 55m

$724

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

lun. 11/24

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

vie. 11/28

7:10 am-4:45 pm

2 stops16h 35m

$748

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

sáb. 2/14

7:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

sáb. 2/28

6:55 am-4:45 pm

2 stops16h 50m

$750

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

sáb. 11/8

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

sáb. 11/22

6:55 am-4:45 pm

2 stops16h 50m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 37 results
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Best time to book a flight from Chicago to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg 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 Heidelberg

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Heidelberg. Price data was last updated on September 12, 2025.

The best time to book flights from Chicago to Heidelberg is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Heidelberg (average of $729). Flying from Chicago to Heidelberg in June is currently the most expensive (average of $1,091). 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 HE1?

Find hourly flight availability from Chicago to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

When flying from Chicago to Heidelberg, 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 Heidelberg?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Heidelberg. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Heidelberg flight should consider departing on Tuesday 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 Heidelberg

Explore weekly flight availability from Chicago to Heidelberg. 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 septiembre 17, 2025.

The most flights from CHI to HE1 are scheduled on a Monday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).

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

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. 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 Heidelberg. Reviews last updated septiembre 17, 2025.
Peruse reviews from past customers who have flown with Scandinavian Airlines, United Airlines, and Aer Lingus from Chicago to Heidelberg to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,486 reviews

Entertainment

6.6

Food

6.7

Comfort

7.3

Overall

7.4

Boarding

7.6

Crew

8.0

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
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Entertainment

6.6

Food

6.7

Comfort

7.3

Overall

7.4

Boarding

7.6

Crew

8.0

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
8,926 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Entertainment

6.6

Food

6.7

Comfort

7.3

Overall

7.4

Boarding

7.6

Crew

8.0

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
Aer Lingus
7.2
Good
1,277 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Entertainment

6.6

Food

6.7

Comfort

7.3

Overall

7.4

Boarding

7.6

Crew

8.0

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
Icelandair
7.0
Good
545 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Entertainment

6.6

Food

6.7

Comfort

7.3

Overall

7.4

Boarding

7.6

Crew

8.0

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
7,409 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Entertainment

6.6

Food

6.7

Comfort

7.3

Overall

7.4

Boarding

7.6

Crew

8.0

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 Heidelberg. 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 Heidelberg?

    A quick flight from Chicago to Heidelberg can take about 11h 42m. Scandinavian Airlines provides one of the quickest options available for as low as $867. Chicago and Heidelberg are separated by a distance of 4331 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most reliable airlines from Chicago to Heidelberg?

    No one likes to see their flight delayed. When booking a flight from Chicago to Heidelberg consider choosing Air Canada (59%), United Airlines (59%) or Lufthansa (54%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chicago to Heidelberg?

    Looking at all options, your cheapest flight can be booked for $448. While the most popular route (Chicago O'Hare Intl - Frankfurt am Main) can be booked for $436 on average, our data indicates $2,452 when flying from Chicago to Heidelberg.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Heidelberg (average of $729). Flying from Chicago to Heidelberg in June is currently the most expensive (average of $1,091). 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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Top 10 airlines flying from Chicago to Heidelberg

Discover the top 10 airlines that operate flights from Chicago to Heidelberg. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$791FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$333Average$638FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$460Average$702FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$855FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$565Average$826FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$570Average$842FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$583Average$842FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$603Average$903FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$609Average$724FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$755Average$1,122FlexibilityNo cancel feeOn-time76%

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