HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heidelberg

$251+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FRA
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Heidelberg with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Chicago to Heidelberg are usually found in February or January, booked 29 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

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 January 11, 2026.

Round-trip from

$510
(AirNGo)

One-way from

$253
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$766
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 ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 11, 2026.

This AirNGo deal was found by Cheapflights users on 1/9. 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.
Fri 1/307:10 pmORD - FRA
1 stop12h 20mScandinavian Airlines
Mon 2/910:30 amFRA - ORD
1 stop13h 15mScandinavian Airlines
Deal found 1/9$510
This AirNGo deal was found by Cheapflights users on 1/10. 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.
Mon 2/27:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Sun 2/810:30 amFRA - ORD
1 stop13h 25mScandinavian Airlines
Deal found 1/10$512
This CrystalTravel deal was found by Cheapflights users on 1/10. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Mon 3/1611:05 amFRA - ORD
1 stop12h 40mScandinavian Airlines
Deal found 1/10$515
This lastminute.com deal was found by Cheapflights users on 1/9. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/27:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Wed 2/1110:30 amFRA - ORD
1 stop13h 15mScandinavian Airlines
Deal found 1/9$516
This Flightnetwork deal was found by Cheapflights users on 1/8. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Mon 3/211:05 amFRA - ORD
1 stop12h 40mScandinavian Airlines
Deal found 1/8$519
This oojo deal was found by Cheapflights users on 1/9. 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 3/98:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Fri 3/1310:30 amFRA - ORD
1 stop13h 25mScandinavian Airlines
Deal found 1/9$520
This oojo deal was found by Cheapflights users on 1/8. 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 4/227:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
Sun 4/268:30 pmFRA - ORD
1 stop26h 40mScandinavian Airlines
Deal found 1/8$521
This FlightHub deal was found by Cheapflights users on 1/9. 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.
Wed 4/297:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
Thu 5/78:30 pmFRA - ORD
1 stop26h 40mScandinavian Airlines
Deal found 1/9$527
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Mon 2/97:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Thu 2/198:30 pmFRA - ORD
1 stop27h 15mScandinavian Airlines
Deal found 1/8$531
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Sun 2/87:10 pmORD - FRA
1 stop17h 35mScandinavian Airlines
Sat 2/2110:30 amFRA - ORD
1 stop13h 15mScandinavian Airlines
Deal found 1/8$532
This Kiwi.com deal was found by Cheapflights users on 1/9. 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.
Mon 2/167:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Wed 2/2510:30 amFRA - ORD
1 stop13h 15mScandinavian Airlines
Deal found 1/9$533
This Condor deal was found by Cheapflights users on 1/8. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:25 amMDW - FRA
1 stop13h 20mMultiple Airlines
Tue 5/1912:30 pmFRA - MDW
1 stop14h 40mMultiple Airlines
Deal found 1/8$840

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 January 11, 2026.
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

Mon 1/26

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

Thu 1/29

10:50 am-4:55 pm

1 stop13h 05m

$572

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 4/8

10:40 am-2:35 pm

2 stops20h 55m

Frankfurt am Main

Tue 4/21

8:30 pm-4:10 pm

1 stop26h 40m

$646

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 5/14

9:41 am-5:45 am

1 stop13h 04m

Frankfurt am Main

Tue 5/19

12:30 pm-9:36 pm

1 stop16h 06m

$657

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 4/9

7:50 pm-12:05 pm

1 stop33h 15m

Frankfurt am Main

Thu 4/23

10:30 am-9:40 am

1 stop30h 10m

$667

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sat 2/21

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

Sat 3/7

8:30 pm-8:49 pm

2 stops31h 19m

$670

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 3/1

7:00 am-9:50 am

2 stops19h 50m

Frankfurt am Main

Tue 3/17

10:30 am-9:49 pm

2 stops17h 19m

$674

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 4/14

7:00 am-2:35 pm

2 stops24h 35m

Frankfurt am Main

Fri 4/17

3:20 pm-4:10 pm

1 stop31h 50m

$676

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 3/11

10:40 am-9:50 am

2 stops17h 10m

Frankfurt am Main

Wed 3/18

10:30 am-9:49 pm

2 stops17h 19m

$684

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 3/11

10:40 am-9:50 am

2 stops17h 10m

Frankfurt am Main

Tue 3/24

10:30 am-10:16 pm

2 stops17h 46m

$684

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 3/1

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

Tue 3/17

7:55 am-9:49 pm

2 stops19h 54m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 39 results
1
2
3
4

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 January 9, 2026.

The best time to book flights from Chicago to Heidelberg is 29 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, February is the cheapest month in which you can book a flight from Chicago to Heidelberg (average of $461). 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 January 11, 2026.

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.

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 January 11, 2026.

The most flights from CHI to HE1 are scheduled on a Sunday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 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 January 11, 2026.
Peruse reviews from past customers who have flown with United Airlines, Scandinavian 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.
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,145 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Scandinavian Airlines
7.3
Good
1,640 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,432 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
595 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,710 reviews
United Airlines
7.4
Good
9,145 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 12h 20m. Scandinavian Airlines provides one of the quickest options available for as low as $510. 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 cheapest airlines to fly from Chicago to Heidelberg one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $221. Users have also found prices from $284 and $464 on Scandinavian Airlines and Lufthansa, respectively.

  • 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 (47%), Air Canada (44%) or United Airlines (44%) 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 $404. While the most popular route (Chicago O'Hare Intl - Frankfurt am Main) can be booked for $431 on average, our data indicates $2,744 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, February is the cheapest month in which you can book a flight from Chicago to Heidelberg (average of $461). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$786FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$429Average$866FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$460Average$815FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$462Average$714FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$792FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$489Average$634FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$562Average$864FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$596Average$886FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$609Average$791FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$753Average$1,136FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.