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Heidelberg

$225+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FRA
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Heidelberg are usually found in April or January, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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 November 3, 2025.

This AirNGo 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:30 pmORD - FRA
1 stop10h 35mIcelandair
Thu 1/81:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 11/2$589
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:10 pmORD - FRA
1 stop14h 45mTAP AIR PORTUGAL
Sun 1/116:00 amFRA - ORD
1 stop15h 45mTAP AIR PORTUGAL
Deal found 11/2$591
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:10 amORD - FRA
2 stops29h 35mScandinavian Airlines
Sat 11/223:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 11/2$592
This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Tue 1/1310:30 amFRA - ORD
2 stops18h 30mScandinavian Airlines
Deal found 11/2$596
This Gotogate deal was found by Cheapflights users on 11/1. 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.
Thu 12/256:30 pmORD - FRA
1 stop10h 35mIcelandair
Fri 1/91:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 11/1$597
This Icelandair deal was found by Cheapflights users on 10/31. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:30 pmORD - FRA
1 stop10h 35mIcelandair
Mon 12/221:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 10/31$598
This AirNGo 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:50 amMDW - FRA
1 stop15h 50mVirgin Atlantic
Tue 1/139:50 amFRA - MDW
1 stop19h 19mVirgin Atlantic
Deal found 11/3$599
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:30 pmORD - FRA
1 stop10h 35mIcelandair
Sat 1/101:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 11/2$601
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:30 pmORD - FRA
1 stop10h 35mIcelandair
Sat 1/101:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 11/3$602
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmORD - FRA
2 stops17h 05mMultiple Airlines
Wed 12/1010:45 amFRA - ORD
1 stop14h 10mMultiple Airlines
Deal found 11/2$604
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:30 pmORD - FRA
1 stop10h 35mIcelandair
Tue 11/181:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 11/2$605
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:36 amORD - FRA
2 stops20h 54mScandinavian Airlines
Sun 1/1110:30 amFRA - ORD
1 stop13h 25mScandinavian Airlines
Deal found 11/2$606

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 November 3, 2025.

Round-trip from

$589
(AirNGo)

One-way from

$225
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$825
From Chicago (CHI) to Heidelberg
Search Deals
One-way flight from Chicago (CHI) to Heidelberg
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 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 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 November 3, 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

Sun 12/14

6:30 pm-12:05 pm

1 stop10h 35m

Frankfurt am Main

Thu 1/8

1:05 pm-5:20 pm

1 stop11h 15m

$589

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 3/3

6:30 pm-12:05 pm

1 stop10h 35m

Frankfurt am Main

Wed 3/11

1:05 pm-6:20 pm

1 stop11h 15m

$597

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 12/11

6:30 pm-12:05 pm

1 stop10h 35m

Frankfurt am Main

Mon 12/22

1:05 pm-5:20 pm

1 stop11h 15m

$598

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 1/21

7:01 am-9:50 am

2 stops19h 49m

Frankfurt am Main

Wed 1/28

10:30 am-9:35 pm

2 stops18h 05m

$606

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 2/4

7:01 am-9:50 am

2 stops19h 49m

Frankfurt am Main

Wed 2/11

10:30 am-9:35 pm

2 stops18h 05m

$606

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Fri 3/27

7:30 pm-12:05 pm

1 stop10h 35m

Frankfurt am Main

Thu 4/2

2:00 pm-6:15 pm

1 stop11h 15m

$650

ChicagoFrankfurt am Main

MDW - FRA

MDWFRA

Chicago Midway

Sun 12/28

12:45 pm-8:40 am

1 stop12h 55m

Frankfurt am Main

Tue 1/13

9:50 am-10:09 pm

1 stop19h 19m

$653

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 12/28

6:45 am-8:40 am

1 stop18h 55m

Frankfurt am Main

Tue 1/13

9:40 am-3:10 pm

1 stop12h 30m

$653

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 1/13

5:20 pm-11:15 am

1 stop10h 55m

Frankfurt am Main

Tue 1/20

11:50 am-9:04 pm

2 stops16h 14m

$664

ChicagoFrankfurt am Main

MDW - FRA

MDWFRA

Chicago Midway

Sun 12/28

12:45 pm-8:40 am

1 stop12h 55m

Frankfurt am Main

Tue 1/13

9:50 am-10:09 pm

1 stop19h 19m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 40 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 October 31, 2025.

The best time to book flights from Chicago to Heidelberg is 82 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, April is the cheapest month in which you can book a flight from Chicago to Heidelberg (average of $203). Flying from Chicago to Heidelberg in June is currently the most expensive (average of $754). 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 November 3, 2025.

One of the essential ways to save on airfare from Chicago to Heidelberg is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 37% on airfare.

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. Monday at noon 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 November 3, 2025.

The most flights from CHI to HE1 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 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 November 3, 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
1,554 reviews

Overall

7.4

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Comfort

7.3

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
1,554 reviews
Scandinavian Airlines
7.4
Good
1,554 reviews

Overall

7.4

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Comfort

7.3

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
8,996 reviews
Scandinavian Airlines
7.4
Good
1,554 reviews

Overall

7.4

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Comfort

7.3

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
1,365 reviews
Scandinavian Airlines
7.4
Good
1,554 reviews

Overall

7.4

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Comfort

7.3

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
7.1
Good
568 reviews
Scandinavian Airlines
7.4
Good
1,554 reviews

Overall

7.4

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Comfort

7.3

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
7,544 reviews
Scandinavian Airlines
7.4
Good
1,554 reviews

Overall

7.4

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Comfort

7.3

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 10h 35m. Icelandair provides one of the quickest options available for as low as $589. Chicago and Heidelberg are separated by a distance of 4328 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 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 Heidelberg?

    Looking at all options, your cheapest flight can be booked for $414. While the most popular route (Chicago O'Hare Intl - Frankfurt am Main) can be booked for $473 on average, our data indicates $2,621 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, April is the cheapest month in which you can book a flight from Chicago to Heidelberg (average of $203). Flying from Chicago to Heidelberg in June is currently the most expensive (average of $754). 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$791FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$333Average$629FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$429Average$866FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$467Average$736FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$791FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$495Average$814FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$581Average$847FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$614Average$708FlexibilityNo cancel feeOn-time77%
KLMCheapest$652Average$1,038FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$754Average$1,125FlexibilityNo cancel feeOn-time76%

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