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Heidelberg

$237+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FRA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 Wednesday or Tuesday and return on a Thursday

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 November 26, 2025.

This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:45 amORD - FRA
2 stops18h 05mDelta
Thu 12/117:05 amFRA - ORD
1 stop15h 05mDelta
Deal found 11/26$598
This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:45 amORD - FRA
2 stops21h 20mDelta
Fri 12/122:15 pmFRA - ORD
1 stop31h 05mDelta
Deal found 11/26$601
This KLM deal was found by Cheapflights users on 11/26. 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.
Thu 11/271:25 pmORD - FRA
2 stops13h 10mKLM
Thu 12/47:20 pmFRA - ORD
1 stop26h 00mKLM
Deal found 11/26$604
This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:45 amORD - FRA
1 stop18h 55mDelta
Mon 12/86:55 amFRA - ORD
2 stops17h 51mDelta
Deal found 11/26$605
This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/61:23 pmORD - FRA
2 stops14h 52mDelta
Sat 12/1310:15 amFRA - ORD
2 stops18h 24mDelta
Deal found 11/26$608
This Virgin Atlantic deal was found by Cheapflights users on 11/26. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:00 amORD - FRA
2 stops18h 40mVirgin Atlantic
Thu 12/410:40 amFRA - ORD
2 stops16h 55mVirgin Atlantic
Deal found 11/26$610
This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/292:35 pmORD - FRA
2 stops13h 30mDelta
Sat 12/610:15 amFRA - ORD
2 stops17h 20mDelta
Deal found 11/26$614
This Scandinavian Airlines deal was found by Cheapflights users on 11/24. 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 12/77:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Mon 1/1210:30 amFRA - ORD
1 stop13h 15mScandinavian Airlines
Deal found 11/24$616
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/17:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Wed 12/103:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 11/23$624
This Justfly.com deal was found by Cheapflights users on 11/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Thu 2/53:15 pmFRA - ORD
2 stops38h 14mScandinavian Airlines
Deal found 11/24$638
This Flighttix deal was found by Cheapflights users on 11/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:20 pmORD - FRA
1 stop17h 25mScandinavian Airlines
Mon 1/198:30 pmFRA - ORD
2 stops44h 11mScandinavian Airlines
Deal found 11/24$645

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 November 26, 2025.

Round-trip from

$591
(FlightHub)

One-way from

$237
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$970
From Chicago O'Hare Intl to Heidelberg
Search Deals
One-way flight from Chicago O'Hare Intl to Heidelberg
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($204 potential increase over avg. RT price).
Search Deals
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 November 2025
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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 November 26, 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

Sun 1/18

7:01 am-9:50 am

2 stops19h 49m

Frankfurt am Main

Tue 2/3

10:30 am-9:35 pm

2 stops18h 05m

$603

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sat 3/7

7:20 pm-9:50 am

1 stop31h 30m

Frankfurt am Main

Thu 3/19

11:15 am-5:45 pm

1 stop12h 30m

$606

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Fri 4/10

7:35 pm-2:35 pm

2 stops36h 00m

Frankfurt am Main

Fri 4/24

3:20 pm-4:10 pm

1 stop31h 50m

$607

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 3/3

7:05 am-9:50 am

2 stops19h 45m

Frankfurt am Main

Mon 3/23

8:30 pm-9:34 pm

2 stops31h 04m

$625

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 3/3

10:36 am-9:50 am

2 stops16h 14m

Frankfurt am Main

Sun 3/22

8:30 pm-9:34 pm

2 stops31h 04m

$625

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sat 2/21

10:36 am-11:35 am

2 stops17h 59m

Frankfurt am Main

Sat 3/7

10:55 am-4:45 pm

1 stop12h 50m

$635

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 3/8

8:20 pm-2:30 pm

1 stop12h 10m

Frankfurt am Main

Sun 3/22

8:30 pm-9:34 pm

2 stops31h 04m

$636

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 4/12

7:00 am-2:35 pm

2 stops24h 35m

Frankfurt am Main

Wed 4/22

3:20 pm-12:52 pm

2 stops52h 32m

$671

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 3/8

8:20 pm-7:45 pm

1 stop17h 25m

Frankfurt am Main

Wed 3/18

8:30 pm-10:01 pm

2 stops31h 31m

$716

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Fri 2/20

7:00 am-9:50 am

2 stops19h 50m

Frankfurt am Main

Sun 3/8

7:00 am-4:45 pm

2 stops16h 45m

$717

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 21 results
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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 November 21, 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, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Heidelberg (average of $203). Flying from Chicago O'Hare Intl Airport 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 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 November 26, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Chicago O'Hare Intl Airport to Heidelberg by exploring options for tickets in the morning.

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. Monday at noon 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 November 26, 2025.

The most flights from ORD 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).

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 26, 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
1,589 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Scandinavian Airlines
7.4
Good
1,589 reviews
Scandinavian Airlines
7.4
Good
1,589 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
United Airlines
7.4
Good
9,050 reviews
Scandinavian Airlines
7.4
Good
1,589 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Aer Lingus
7.2
Good
1,382 reviews
Scandinavian Airlines
7.4
Good
1,589 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Icelandair
7.0
Good
582 reviews
Scandinavian Airlines
7.4
Good
1,589 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Lufthansa
6.8
Okay
7,594 reviews
Scandinavian Airlines
7.4
Good
1,589 reviews

Overall

7.4

Entertainment

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight

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.

  • How long is the flight from Chicago O'Hare Intl Airport to Heidelberg?

    Departing from Chicago O'Hare Intl Airport to Heidelberg will take you 19h 49m. The distance from Chicago O'Hare Intl Airport to Heidelberg is about 4328 mi.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Heidelberg one-way?

    One-way options have recently been found by users for as low as $277 on Scandinavian Airlines. Other airlines that offer cheap prices include Singapore Airlines from $352 and Finnair from $354 one-way.

  • 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 (59%), Air Canada (57%) and United Airlines (56%).

  • 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 $2,680, our data shows the cheapest flight currently is $408. When looking at the most popular route, (Chicago O'Hare Intl - Frankfurt am Main), you can expect to pay $461 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, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Heidelberg (average of $203). Flying from Chicago O'Hare Intl Airport 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

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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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$791FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$333Average$632FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$429Average$862FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$467Average$729FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$791FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$495Average$849FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$581Average$853FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$609Average$708FlexibilityNo cancel feeOn-time77%
KLMCheapest$652Average$1,038FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$751Average$1,050FlexibilityNo cancel feeOn-time69%

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