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Heidelberg

$317+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FRA
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Heidelberg are usually found in January or February, booked 57 days in advance, depart on a Tuesday or Wednesday 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 April 15, 2025.

Round-trip from

$617
(Condor)

One-way from

$317
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$791
From Chicago (CHI) to Heidelberg
Search Deals
One-way flight from Chicago (CHI) to Heidelberg
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 15, 2025.

This Condor deal was found by Cheapflights users on 4/15. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/56:20 amORD - FRA
1 stop16h 25mMultiple Airlines
Fri 5/911:40 amFRA - ORD
1 stop13h 56mMultiple Airlines
Deal found 4/15$617
This oojo deal was found by Cheapflights users on 4/15. 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.
Sat 10/258:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Fri 10/318:30 pmFRA - ORD
1 stop27h 15mScandinavian Airlines
Deal found 4/15$649
This FlightHub deal was found by Cheapflights users on 4/14. 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 10/77:50 pmORD - FRA
1 stop31h 10mTurkish Airlines
Thu 10/237:05 amFRA - ORD
1 stop17h 50mTurkish Airlines
Deal found 4/14$657
This deal was found by Cheapflights users on 4/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2110:15 pmORD - FRA
1 stop10h 50mIcelandair
Fri 9/265:10 pmFRA - ORD
1 stop11h 05mIcelandair
Deal found 4/15$724
This FlightHub deal was found by Cheapflights users on 4/14. 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 11/269:35 pmORD - FRA
1 stop11h 35mLufthansa
Tue 12/912:50 pmFRA - ORD
Nonstop9h 30mLufthansa
Deal found 4/14$787
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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.
Wed 4/309:40 amORD - FRA
1 stop13h 50mAir Canada
Wed 5/149:55 amFRA - ORD
1 stop15h 27mAir Canada
Deal found 4/14$797
This Gotogate deal was found by Cheapflights users on 4/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/166:00 pmORD - FRA
1 stop17h 55mTAP AIR PORTUGAL
Tue 4/297:40 pmFRA - ORD
1 stop27h 30mTAP AIR PORTUGAL
Deal found 4/15$813
This Air Serbia deal was found by Cheapflights users on 4/14. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1010:55 pmORD - FRA
1 stop27h 15mAir Serbia
Sat 1/39:55 amFRA - ORD
1 stop13h 45mAir Serbia
Deal found 4/14$817
This United deal was found by Cheapflights users on 4/13. 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 10/209:25 pmORD - FRA
1 stop30h 40mUnited Airlines
Thu 10/239:55 amFRA - ORD
1 stop17h 16mUnited Airlines
Deal found 4/13$822
This FlightHub deal was found by Cheapflights users on 4/15. 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.
Mon 4/283:45 pmORD - FRA
1 stop11h 30mAer Lingus
Fri 5/210:55 amFRA - ORD
1 stop15h 05mAer Lingus
Deal found 4/15$824
This oojo deal was found by Cheapflights users on 4/14. 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 8/89:40 pmORD - FRA
1 stop14h 20mLOT
Sat 8/237:50 pmFRA - ORD
1 stop26h 20mLOT
Deal found 4/14$825
This KLM deal was found by Cheapflights users on 4/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/61:05 pmMDW - FRA
1 stop12h 50mKLM
Tue 8/1911:00 amFRA - MDW
1 stop14h 28mKLM
Deal found 4/15$842

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 April 15, 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

Mon 5/5

6:20 am-5:45 am

1 stop16h 25m

Frankfurt am Main

Fri 5/9

11:40 am-6:36 pm

1 stop13h 56m

$617

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 10/7

7:50 pm-10:00 am

1 stop31h 10m

Frankfurt am Main

Thu 10/23

7:05 am-5:55 pm

1 stop17h 50m

$657

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 9/8

7:15 pm-2:40 pm

1 stop12h 25m

Frankfurt am Main

Fri 9/19

8:30 pm-4:10 pm

1 stop26h 40m

$665

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 9/21

10:15 pm-4:05 pm

1 stop10h 50m

Frankfurt am Main

Fri 9/26

5:10 pm-9:15 pm

1 stop11h 05m

$724

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 10/1

4:00 pm-10:05 am

1 stop11h 05m

Frankfurt am Main

Wed 10/15

5:20 pm-7:55 pm

Nonstop9h 35m

$796

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 4/30

9:40 am-6:30 am

1 stop13h 50m

Frankfurt am Main

Wed 5/14

9:55 am-6:22 pm

1 stop15h 27m

$797

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 4/28

3:45 pm-10:15 am

1 stop11h 30m

Frankfurt am Main

Fri 5/2

10:55 am-7:00 pm

1 stop15h 05m

$824

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Fri 8/8

9:40 pm-7:00 pm

1 stop14h 20m

Frankfurt am Main

Sat 8/23

7:50 pm-3:10 pm

1 stop26h 20m

$825

ChicagoFrankfurt am Main

MDW - FRA

MDWFRA

Chicago Midway

Wed 8/6

1:05 pm-8:55 am

1 stop12h 50m

Frankfurt am Main

Tue 8/19

11:00 am-6:28 pm

1 stop14h 28m

$842

ChicagoFrankfurt am Main

MDW - FRA

MDWFRA

Chicago Midway

Wed 8/6

10:35 am-8:55 am

1 stop15h 20m

Frankfurt am Main

Tue 8/19

11:00 am-9:47 pm

2 stops17h 47m

$847

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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 April 11, 2025.

The best time to book flights from Chicago to Heidelberg is 57 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 $1,079). 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 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 April 15, 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 April 15, 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).

Rainfall in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Heidelberg ranges from 1.6 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Heidelberg when rainfall is around 1.6 in.

Temperature in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Heidelberg, use this chart to help with planning. For those seeking warmer temperatures, July 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 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 April 15, 2025.
Peruse reviews from past customers who have flown with Singapore Airlines, Delta and KLM from Chicago to Heidelberg to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Food

7.7

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very good
1,288 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Food

7.7

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Delta
8.0
Very good
7,918 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Food

7.7

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
KLM
7.8
Good
1,323 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Food

7.7

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
LOT
7.6
Good
1,065 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Food

7.7

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Air France
7.5
Good
1,435 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Crew

8.6

Boarding

8.2

Food

7.7

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $317. Users have also found prices from $368 and $436 on Scandinavian Airlines and Icelandair, 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 Air Canada (73%), United Airlines (73%) or Lufthansa (71%) 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 $488. While the most popular route (Chicago O'Hare Intl - Frankfurt am Main) can be booked for $511 on average our data indicates $4,012 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 $1,079). 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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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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$264Average$652FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$673FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$832FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$495Average$868FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$565Average$775FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$591Average$808FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$600Average$691FlexibilityNo cancel feeOn-time77%
KLMCheapest$642Average$920FlexibilityNo cancel feeOn-time75%
LOTCheapest$698Average$1,025FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$765Average$1,148FlexibilityNo cancel feeOn-time69%

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