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Heidelberg

$324+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FRA
May 5 — May 121
Mon 5/5
Mon 5/12
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 43 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 April 30, 2025.

Round-trip from

$615
(Condor)

One-way from

$324
(oojo)

Popular in

June

Cheapest in

January

Average price

$904
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. 19% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 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 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 April 30, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 9/107:30 amORD - FRA
2 stops24h 10mScandinavian Airlines
Mon 9/228:30 pmFRA - ORD
1 stop26h 40mScandinavian Airlines
Deal found 4/29$617
This Condor deal was found by Cheapflights users on 4/29. 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 5/138:45 amORD - FRA
1 stop13h 30mMultiple Airlines
Fri 5/1611:15 amFRA - ORD
1 stop17h 39mMultiple Airlines
Deal found 4/29$642
This Turkish Airlines deal was found by Cheapflights users on 4/29. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:50 pmORD - FRA
1 stop34h 50mTurkish Airlines
Tue 10/146:55 pmFRA - ORD
1 stop34h 05mTurkish Airlines
Deal found 4/29$662
This oojo deal was found by Cheapflights users on 4/29. 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 11/268:25 pmORD - FRA
1 stop13h 30mTAP AIR PORTUGAL
Sun 12/146:00 amFRA - ORD
1 stop16h 00mTAP AIR PORTUGAL
Deal found 4/29$710
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Fri 12/126:30 pmORD - FRA
1 stop10h 35mIcelandair
Mon 12/221:05 pmFRA - ORD
1 stop11h 15mIcelandair
Deal found 4/29$780
This StudentUniverse deal was found by Cheapflights users on 4/29. 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.
Mon 8/45:40 pmORD - FRA
2 stops17h 55mFinnair
Thu 8/1411:30 amFRA - ORD
1 stop13h 20mFinnair
Deal found 4/29$799
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 8/29:17 amORD - FRA
1 stop15h 03mAmerican Airlines
Fri 8/159:20 amFRA - ORD
1 stop16h 48mAmerican Airlines
Deal found 4/29$819
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Sun 6/16:15 pmORD - FRA
3 stops30h 55mAir Canada
Tue 6/109:55 amFRA - ORD
2 stops16h 35mAir Canada
Deal found 4/29$826
This oojo deal was found by Cheapflights users on 4/29. 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 11/269:55 pmORD - FRA
1 stop14h 10mLOT
Sun 12/147:50 pmFRA - ORD
2 stops31h 00mLOT
Deal found 4/29$845
This FlightHub deal was found by Cheapflights users on 4/29. 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 12/73:55 pmORD - FRA
Nonstop8h 30mLufthansa
Mon 12/84:55 pmFRA - ORD
1 stop28h 15mLufthansa
Deal found 4/29$850
This Virgin Atlantic deal was found by Cheapflights users on 4/29. 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.
Wed 8/2712:17 pmORD - FRA
2 stops14h 33mVirgin Atlantic
Wed 9/1011:00 amFRA - ORD
2 stops15h 47mVirgin Atlantic
Deal found 4/29$857
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 8/1311:19 amORD - FRA
1 stop14h 36mDelta
Sat 8/237:00 amFRA - ORD
2 stops14h 59mDelta
Deal found 4/29$866

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 April 30, 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 9/10

7:30 am-2:40 pm

2 stops24h 10m

Frankfurt am Main

Mon 9/22

8:30 pm-4:10 pm

1 stop26h 40m

$617

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Tue 5/13

8:45 am-5:15 am

1 stop13h 30m

Frankfurt am Main

Fri 5/16

11:15 am-9:54 pm

1 stop17h 39m

$642

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 10/9

7:50 pm-1:40 pm

1 stop34h 50m

Frankfurt am Main

Tue 10/14

6:55 pm-10:00 pm

1 stop34h 05m

$662

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Mon 8/4

5:40 pm-6:35 pm

2 stops17h 55m

Frankfurt am Main

Thu 8/14

11:30 am-5:50 pm

1 stop13h 20m

$799

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sat 8/2

9:17 am-7:20 am

1 stop15h 03m

Frankfurt am Main

Fri 8/15

9:20 am-7:08 pm

1 stop16h 48m

$819

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Sun 6/1

6:15 pm-8:10 am

3 stops30h 55m

Frankfurt am Main

Tue 6/10

9:55 am-7:30 pm

2 stops16h 35m

$826

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Thu 7/31

7:25 pm-4:05 pm

1 stop13h 40m

Frankfurt am Main

Wed 8/13

5:10 pm-9:15 pm

1 stop11h 05m

$854

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 8/27

12:17 pm-9:50 am

2 stops14h 33m

Frankfurt am Main

Wed 9/10

11:00 am-7:47 pm

2 stops15h 47m

$857

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 8/13

11:19 am-8:55 am

1 stop14h 36m

Frankfurt am Main

Sat 8/23

7:00 am-2:59 pm

2 stops14h 59m

$866

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

Wed 9/10

10:30 pm-2:05 pm

Nonstop8h 35m

Frankfurt am Main

Wed 9/17

5:20 pm-7:55 pm

Nonstop9h 35m

$873

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 30 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 April 25, 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 $1,086). 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 April 30, 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 April 30, 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).

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 30, 2025.
To help decide which airline to fly from Chicago to Heidelberg, see what other customers have to say about Singapore Airlines, Delta and Alaska 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.
Singapore Airlines
8.1
Very good
1,292 reviews

Food

7.7

Boarding

8.2

Comfort

7.9

Overall

8.1

Crew

8.6

Entertainment

8.0

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
1,292 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Food

7.7

Boarding

8.2

Comfort

7.9

Overall

8.1

Crew

8.6

Entertainment

8.0

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
7,929 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Food

7.7

Boarding

8.2

Comfort

7.9

Overall

8.1

Crew

8.6

Entertainment

8.0

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.
Alaska Airlines
8.0
Very good
9,961 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Food

7.7

Boarding

8.2

Comfort

7.9

Overall

8.1

Crew

8.6

Entertainment

8.0

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
1,334 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Food

7.7

Boarding

8.2

Comfort

7.9

Overall

8.1

Crew

8.6

Entertainment

8.0

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
1,069 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Food

7.7

Boarding

8.2

Comfort

7.9

Overall

8.1

Crew

8.6

Entertainment

8.0

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 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 $324 on Air Serbia. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $336 and Scandinavian Airlines from $358 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 (73%), United Airlines (73%) and Lufthansa (73%).

  • 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 $4,229, our data shows the cheapest flight currently is $482. When looking at the most popular route, (Chicago O'Hare Intl - Frankfurt am Main), you can expect to pay $506 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 $1,086). 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$264Average$651FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$671FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$832FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$495Average$864FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$565Average$773FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$590Average$794FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$600Average$700FlexibilityNo cancel feeOn-time77%
KLMCheapest$642Average$920FlexibilityNo cancel feeOn-time75%
LOTCheapest$698Average$1,025FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$746Average$1,138FlexibilityNo cancel feeOn-time69%

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