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Heidelberg

$216+ Cheap flights from O'Hare Intl (ORD) 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FRA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Heidelberg are usually found in January or February, booked 11 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from O'Hare Intl to Heidelberg

Keep the following information in mind while searching for O'Hare Intl to Heidelberg flight deals. Data was last updated September 15, 2025.

Round-trip from

$642
(FlightHub)

One-way from

$216
(Flysmarter)

Popular in

June

Cheapest in

January

Average price

$927
From Chicago O'Hare Intl to Heidelberg
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One-way flight from Chicago O'Hare Intl to Heidelberg
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Highest demand for flights based on searches. 18% potential increase in price ($213 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 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 O'Hare Intl to Heidelberg

Cheapest flights from O'Hare Intl to Heidelberg
Explore the most affordable flight options available from O'Hare Intl to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:25 pmORD - FRA
1 stop19h 15mMultiple Airlines
Tue 11/1810:45 amFRA - ORD
2 stops35h 15mMultiple Airlines
Deal found 9/13$646
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:45 pmORD - FRA
1 stop11h 30mAer Lingus
Wed 10/1510:55 amFRA - ORD
1 stop15h 05mAer Lingus
Deal found 9/14$648
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:50 pmORD - FRA
2 stops19h 50mMultiple Airlines
Wed 11/510:45 amFRA - ORD
1 stop14h 10mMultiple Airlines
Deal found 9/14$649
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
Thu 10/303:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 9/14$650
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.
Sun 10/127:15 pmORD - FRA
1 stop12h 25mScandinavian Airlines
Mon 10/208:30 pmFRA - ORD
2 stops31h 49mScandinavian Airlines
Deal found 9/15$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.
Tue 11/46:00 amORD - FRA
3 stops23h 30mMultiple Airlines
Tue 11/1810:45 amFRA - ORD
2 stops35h 15mMultiple Airlines
Deal found 9/15$653
This oojo deal was found by Cheapflights users on 9/14. 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.
Sun 10/268:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Sun 11/23:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 9/14$655
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:50 pmORD - FRA
1 stop11h 15mAer Lingus
Mon 11/2410:45 amFRA - ORD
1 stop14h 10mAer Lingus
Deal found 9/13$656
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.
Sun 10/268:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Thu 10/303:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 9/15$658
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Wed 12/173:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 9/13$660
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:30 amORD - FRA
2 stops21h 00mMultiple Airlines
Mon 11/2410:20 amFRA - ORD
1 stop13h 25mMultiple Airlines
Deal found 9/13$661
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.
Thu 10/237:50 pmORD - FRA
1 stop18h 10mTurkish Airlines
Thu 11/610:55 amFRA - ORD
1 stop38h 30mTurkish Airlines
Deal found 9/15$662

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 September 15, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Heidelberg that are best for you.

Fly from

O'Hare Intl

Fly to

Heidelberg

Route

Depart

Return

Price

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 10/29

11:10 pm-7:45 pm

1 stop14h 35m

Frankfurt am Main

Wed 11/5

6:55 am-4:45 pm

2 stops16h 50m

$688

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 11/19

7:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

Sun 11/30

6:55 am-4:45 pm

2 stops16h 50m

$718

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Fri 11/21

7:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

Wed 11/26

6:55 am-4:45 pm

2 stops16h 50m

$719

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 10/29

11:10 pm-7:45 pm

1 stop14h 35m

Frankfurt am Main

Sat 11/1

7:55 am-9:39 pm

2 stops19h 44m

$761

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 10/6

10:08 am-5:15 am

1 stop12h 07m

Frankfurt am Main

Mon 10/20

11:15 am-8:51 pm

1 stop16h 36m

$764

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sat 9/20

8:34 am-5:45 am

1 stop14h 11m

Frankfurt am Main

Mon 9/22

11:15 am-8:49 pm

1 stop16h 34m

$800

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 11/20

7:20 pm-2:10 pm

1 stop11h 50m

Frankfurt am Main

Wed 11/26

6:55 am-4:45 pm

2 stops16h 50m

$822

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sat 11/15

10:30 am-11:35 am

2 stops18h 05m

Frankfurt am Main

Tue 12/16

7:55 am-9:46 pm

2 stops20h 51m

$843

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 11/2

6:20 pm-11:50 am

1 stop10h 30m

Frankfurt am Main

Tue 11/18

9:45 am-2:55 pm

1 stop12h 10m

$854

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 11/5

7:10 pm-10:40 pm

1 stop20h 30m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 19 results
1
2

Best time to book a flight from O'Hare Intl to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg from O'Hare Intl 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 O'Hare Intl Airport to Heidelberg

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Heidelberg?

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

The price you pay for your flight from Chicago O'Hare Intl Airport to Heidelberg may vary depending on when you book. For the best chance of a lower fare, look to book 11 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Heidelberg?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Heidelberg (average of $729). Flying from Chicago O'Hare Intl Airport 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 ORD to HE1?

Find hourly flight availability from O'Hare Intl 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Heidelberg as you normally would.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Heidelberg?

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

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Heidelberg

Explore weekly flight availability from O'Hare Intl 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 September 15, 2025.

The most flights from ORD 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).

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 September 15, 2025.
Read reviews from past customers who have flown Scandinavian Airlines, United Airlines, and Aer Lingus from Chicago O'Hare Intl Airport to Heidelberg. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,484 reviews

Crew

8.0

Boarding

7.7

Entertainment

6.7

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Scandinavian Airlines
7.4
Good
1,484 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Crew

8.0

Boarding

7.7

Entertainment

6.7

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
United Airlines
7.4
Good
8,929 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Crew

8.0

Boarding

7.7

Entertainment

6.7

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Aer Lingus
7.2
Good
1,270 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Crew

8.0

Boarding

7.7

Entertainment

6.7

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Icelandair
7.0
Good
544 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Crew

8.0

Boarding

7.7

Entertainment

6.7

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Lufthansa
6.8
Okay
7,407 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Crew

8.0

Boarding

7.7

Entertainment

6.7

Food

6.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 most reliable airlines from Chicago O'Hare Intl Airport to Heidelberg?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Heidelberg are Lufthansa (54%), Air Canada (53%) and United Airlines (53%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Heidelberg?

    While on average a flight from Chicago O'Hare Intl Airport to Heidelberg is generally $2,589, our data shows the cheapest flight currently is $457. When looking at the most popular route, (Chicago O'Hare Intl - Frankfurt am Main), you can expect to pay $407 for that flight.

  • Can I find deals for flights from O'Hare Intl to Heidelberg that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Heidelberg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Heidelberg?

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

  • Can I find deals for business class flights from O'Hare Intl to Heidelberg?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl Airport to Heidelberg?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Heidelberg (average of $729). Flying from Chicago O'Hare Intl Airport 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

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Top 10 airlines flying from O'Hare Intl to Heidelberg

Discover the top 10 airlines that operate flights from O'Hare Intl 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 September 15, 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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