HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heidelberg

$305+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FRA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl 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.

The best prices from Chicago O'Hare Intl to Heidelberg are usually found in January or October, booked 43 days in advance, depart on a Wednesday or Tuesday 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 February 20, 2025.

Round-trip from

$639
(Flightnetwork)

One-way from

$306
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$849
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. 19% potential increase in price ($246 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 February 20, 2025.

This Flightnetwork deal was found by Cheapflights users on 2/20. 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.
Wed 4/97:30 pmORD - FRA
1 stop10h 30mIcelandair
Wed 4/232:00 pmFRA - ORD
1 stop14h 15mIcelandair
Deal found 2/20$639
This Flightnetwork deal was found by Cheapflights users on 2/18. 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.
Sun 3/2312:00 pmORD - FRA
1 stop14h 50mBritish Airways
Tue 4/810:55 amFRA - ORD
1 stop15h 27mBritish Airways
Deal found 2/18$640
This oojo deal was found by Cheapflights users on 2/20. 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 3/1212:55 pmORD - FRA
1 stop22h 00mTurkish Airlines
Wed 4/26:55 pmFRA - ORD
1 stop21h 45mTurkish Airlines
Deal found 2/20$642
This oojo deal was found by Cheapflights users on 2/19. 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 5/127:15 pmORD - FRA
1 stop12h 25mScandinavian Airlines
Wed 5/213:20 pmFRA - ORD
1 stop31h 50mScandinavian Airlines
Deal found 2/19$643
This Condor deal was found by Cheapflights users on 2/18. 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 5/298:50 amORD - FRA
1 stop13h 25mMultiple Airlines
Wed 6/411:40 amFRA - ORD
1 stop13h 52mMultiple Airlines
Deal found 2/18$655
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2010:28 amORD - FRA
1 stop16h 22mAmerican Airlines
Wed 3/266:30 amFRA - ORD
1 stop15h 00mAmerican Airlines
Deal found 2/19$679
This StudentUniverse deal was found by Cheapflights users on 2/18. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/135:45 pmORD - FRA
2 stops17h 50mFinnair
Tue 4/2911:30 amFRA - ORD
1 stop13h 20mFinnair
Deal found 2/18$685
This Gotogate deal was found by Cheapflights users on 2/19. 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.
Sun 3/239:25 pmORD - FRA
1 stop19h 15mTAP AIR PORTUGAL
Tue 4/87:40 pmFRA - ORD
1 stop27h 30mTAP AIR PORTUGAL
Deal found 2/19$708
This Expedia deal was found by Cheapflights users on 2/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/138:50 pmORD - FRA
1 stop16h 05mAer Lingus
Thu 5/2210:55 amFRA - ORD
1 stop15h 05mAer Lingus
Deal found 2/19$709
This oojo deal was found by Cheapflights users on 2/20. 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.
Thu 3/2710:55 pmORD - FRA
1 stop14h 10mLOT
Sat 4/57:50 pmFRA - ORD
2 stops26h 20mLOT
Deal found 2/20$830

Find flights from O'Hare Intl to Heidelberg within your budget

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 February 20, 2025.

Fly from

O'Hare Intl

Fly to

Heidelberg

Route

Depart

Return

Price

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 4/9

7:30 pm-1:00 pm

1 stop10h 30m

Frankfurt am Main

Wed 4/23

2:00 pm-9:15 pm

1 stop14h 15m

$639

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 3/23

12:00 pm-8:50 am

1 stop14h 50m

Frankfurt am Main

Tue 4/8

10:55 am-7:22 pm

1 stop15h 27m

$640

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 3/12

12:55 pm-4:55 pm

1 stop22h 00m

Frankfurt am Main

Wed 4/2

6:55 pm-9:40 am

1 stop21h 45m

$642

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 5/12

7:15 pm-2:40 pm

1 stop12h 25m

Frankfurt am Main

Wed 5/21

3:20 pm-4:10 pm

1 stop31h 50m

$643

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 5/1

8:50 am-5:15 am

1 stop13h 25m

Frankfurt am Main

Tue 5/6

11:40 am-6:32 pm

1 stop13h 52m

$668

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 3/20

10:28 am-8:50 am

1 stop16h 22m

Frankfurt am Main

Wed 3/26

6:30 am-3:30 pm

1 stop15h 00m

$679

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 4/13

5:45 pm-6:35 pm

2 stops17h 50m

Frankfurt am Main

Tue 4/29

11:30 am-5:50 pm

1 stop13h 20m

$685

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 3/2

8:25 pm-4:55 pm

1 stop13h 30m

Frankfurt am Main

Wed 3/5

6:00 am-3:30 pm

1 stop16h 30m

$693

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 5/13

8:50 pm-7:55 pm

1 stop16h 05m

Frankfurt am Main

Thu 5/22

10:55 am-7:00 pm

1 stop15h 05m

$709

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 3/27

10:55 pm-7:05 pm

1 stop14h 10m

Frankfurt am Main

Sat 4/5

7:50 pm-3:10 pm

2 stops26h 20m

$830

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 21 results
1
2
3

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.

Travel insights for flights from O'Hare Intl to Heidelberg

Get recent, data-driven insights about flights from O'Hare Intl to Heidelberg including ideal travel times, pricing trends, and more.

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 February 14, 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 43 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 $1,096). 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 February 20, 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 Monday mornings 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 February 20, 2025.

The most flights from ORD to HE1 are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, 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 February 20, 2025.
To help decide which airline to fly from Chicago to Heidelberg, see what other customers have to say about LOT, United Airlines and Turkish Airlines. 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.
LOT
7.6
Good
1,080 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Comfort

7.5

Entertainment

7.0

Food

7.2

Reviews

1 / 20

10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

LOT
7.6
Good
1,080 reviews
LOT
7.6
Good
1,080 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Comfort

7.5

Entertainment

7.0

Food

7.2

Reviews

1 / 20

10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

United Airlines
7.4
Good
8,766 reviews
LOT
7.6
Good
1,080 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Comfort

7.5

Entertainment

7.0

Food

7.2

Reviews

1 / 20

10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

Turkish Airlines
7.3
Good
3,832 reviews
LOT
7.6
Good
1,080 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Comfort

7.5

Entertainment

7.0

Food

7.2

Reviews

1 / 20

10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

Scandinavian Airlines
7.3
Good
1,325 reviews
LOT
7.6
Good
1,080 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Comfort

7.5

Entertainment

7.0

Food

7.2

Reviews

1 / 20

10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

WestJet
7.2
Good
2,801 reviews
LOT
7.6
Good
1,080 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Comfort

7.5

Entertainment

7.0

Food

7.2

Reviews

1 / 20

10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

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 $329 on Air Canada. Other airlines that offer cheap prices include Scandinavian Airlines from $366 and TAP AIR PORTUGAL from $405 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 Air Canada (58%), United Airlines (58%) and Thai Airways (47%).

  • 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 $3,039, our data shows the cheapest flight currently is $402. When looking at the most popular route, (Chicago O'Hare Intl - Frankfurt am Main), you can expect to pay $594 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 $1,096). 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 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$333Average$647FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$688FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$498Average$927FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$565Average$840FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$600Average$693FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$608Average$830FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$631Average$1,061FlexibilityNo cancel feeOn-time71%
KLMCheapest$642Average$985FlexibilityNo cancel feeOn-time75%
SWISSCheapest$651Average$1,114FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$656Average$1,182FlexibilityNo 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.