Heidelberg

$221+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FRA
Jul 30 — Aug 61
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Heidelberg are usually found in January or February, booked 84 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 July 25, 2025.

Round-trip from

$610
(Justfly.com)

One-way from

$221
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$1,096
From Chicago O'Hare Intl to Heidelberg
One-way flight from Chicago O'Hare Intl to Heidelberg
Highest demand for flights based on searches. 18% potential increase in price ($219 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 July 25, 2025.

This Justfly.com deal was found by Cheapflights users on 7/24. 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.
Wed 11/197:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Wed 11/263:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Deal found 7/24$610
This Condor deal was found by Cheapflights users on 7/24. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/128:40 amORD - FRA
1 stop13h 35mMultiple Airlines
Tue 8/2611:15 amFRA - ORD
1 stop18h 13mMultiple Airlines
Deal found 7/24$633
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Wed 9/103:45 pmORD - FRA
1 stop11h 30mAer Lingus
Wed 9/2410:55 amFRA - ORD
1 stop15h 05mAer Lingus
Deal found 7/23$634
This oojo deal was found by Cheapflights users on 7/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/238:25 pmORD - FRA
1 stop13h 30mTAP AIR PORTUGAL
Sun 12/76:00 amFRA - ORD
1 stop16h 00mTAP AIR PORTUGAL
Deal found 7/23$635
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:25 pmORD - FRA
1 stop13h 40mIcelandair
Sun 9/215:10 pmFRA - ORD
1 stop32h 05mIcelandair
Deal found 7/24$636
This FlightHub deal was found by Cheapflights users on 7/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:50 pmORD - FRA
1 stop18h 10mTurkish Airlines
Tue 9/306:55 pmFRA - ORD
1 stop21h 45mTurkish Airlines
Deal found 7/24$642
This SWISS deal was found by Cheapflights users on 7/24. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:10 pmORD - FRA
1 stop13h 20mSWISS
Sun 11/99:10 amFRA - ORD
1 stop14h 10mSWISS
Deal found 7/24$653

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 July 25, 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

Tue 8/19

7:00 am-7:45 pm

2 stops29h 45m

Frankfurt am Main

Fri 8/22

3:20 pm-4:10 pm

1 stop31h 50m

$632

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 8/12

8:40 am-5:15 am

1 stop13h 35m

Frankfurt am Main

Tue 8/26

11:15 am-10:28 pm

1 stop18h 13m

$633

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 9/10

3:45 pm-10:15 am

1 stop11h 30m

Frankfurt am Main

Wed 9/24

10:55 am-7:00 pm

1 stop15h 05m

$634

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 9/9

7:25 pm-4:05 pm

1 stop13h 40m

Frankfurt am Main

Sun 9/21

5:10 pm-6:15 pm

1 stop32h 05m

$636

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 9/23

7:50 pm-9:00 pm

1 stop18h 10m

Frankfurt am Main

Tue 9/30

6:55 pm-9:40 am

1 stop21h 45m

$642

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 8/21

8:50 pm-12:40 pm

1 stop32h 50m

Frankfurt am Main

Thu 8/28

6:05 am-12:50 pm

1 stop13h 45m

$701

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 7/28

6:10 pm-10:20 pm

1 stop21h 10m

$221

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 9/9

11:13 am-7:20 pm

3 stops49h 07m

$251

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 9/1

7:05 pm-4:50 pm

2 stops14h 45m

$363

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 9/30

1:35 pm-10:40 am

1 stop14h 05m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 11 results
1
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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 July 18, 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 84 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 $1,089). 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 July 25, 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 July 25, 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 July 25, 2025.
Read reviews from past customers who have flown Singapore Airlines, SWISS, and Turkish Airlines 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.

Food

7.7

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Food

7.7

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Food

7.7

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Food

7.7

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Food

7.7

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Food

7.7

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

8.0

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

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 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 $221 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include SWISS from $363 and Singapore Airlines from $365 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 (63%), Air Canada (57%) and United Airlines (57%).

  • 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 $2,864, our data shows the cheapest flight currently is $440. When looking at the most popular route, (Chicago O'Hare Intl - Frankfurt am Main), you can expect to pay $533 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 $1,089). 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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$881FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$264Average$639FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$683FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$823FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$505Average$863FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$565Average$753FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$591Average$840FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$603Average$898FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$609Average$725FlexibilityNo cancel feeOn-time77%
LOTCheapest$698Average$999FlexibilityNo cancel feeOn-time81%

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