$222 Find Cheap Flights from Chicago to Heidelberg

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Heidelberg departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights from Chicago to Heidelberg

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flight Deals from Chicago to Heidelberg (CHI-FRA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Heidelberg that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Heidelberg

Sun, Sep 14 - Tue, Oct 7
Icelandair Logo
7:25 pm - 1:00 pmORD-FRA
10h 35m1 stop
Icelandair Logo
2:00 pm - 6:15 pmFRA-ORD
11h 15m1 stop
$530Icelandair
Find Deal
Sun, Sep 21 - Tue, Oct 7
Icelandair Logo
7:25 pm - 1:00 pmORD-FRA
10h 35m1 stop
Icelandair Logo
2:00 pm - 6:15 pmFRA-ORD
11h 15m1 stop
$532Icelandair
Find Deal
Mon, Sep 22 - Wed, Oct 1
Icelandair Logo
7:25 pm - 1:00 pmORD-FRA
10h 35m1 stop
Icelandair Logo
5:10 pm - 9:15 pmFRA-ORD
11h 05m1 stop
$535Icelandair
Find Deal
Mon, Oct 6 - Mon, Oct 20
Scandinavian Airlines Logo
7:15 pm - 2:40 pmORD-FRA
12h 25m1 stop
Scandinavian Airlines Logo
8:30 pm - 4:10 pmFRA-ORD
26h 40m1 stop
$549Scandinavian Airlines
Find Deal
Sun, Sep 14 - Mon, Sep 22
Scandinavian Airlines Logo
7:15 pm - 2:40 pmORD-FRA
12h 25m1 stop
Scandinavian Airlines Logo
8:30 pm - 4:10 pmFRA-ORD
26h 40m1 stop
$609Scandinavian Airlines
Find Deal
Fri, Aug 22 - Thu, Aug 28
Aer Lingus Logo
3:45 pm - 10:15 amORD-FRA
11h 30m1 stop
Aer Lingus Logo
10:55 am - 7:00 pmFRA-ORD
15h 05m1 stop
$661Aer Lingus
Find Deal
Sun, Aug 3 - Tue, Aug 12
British Airways Logo
9:15 pm - 9:30 amORD-FRA
29h 15m1 stop
British Airways Logo
8:30 pm - 3:55 pmFRA-ORD
26h 25m1 stop
$674British Airways
Find Deal
Sun, Sep 14 - Tue, Sep 23
British Airways Logo
4:55 pm - 2:05 pmORD-FRA
14h 10m1 stop
British Airways Logo
10:40 am - 11:46 pmFRA-ORD
20h 06m2 stops
$684British Airways
Find Deal
Wed, Aug 13 - Wed, Aug 20
Lufthansa Logo
4:00 pm - 7:20 amORD-FRA
8h 20mnonstop
Lufthansa Logo
10:50 am - 12:55 pmFRA-ORD
9h 05mnonstop
$784Lufthansa
Find Deal
Wed, Aug 13 - Wed, Aug 20
Lufthansa Logo
4:00 pm - 7:20 amORD-FRA
8h 20mnonstop
Lufthansa Logo
5:20 pm - 7:55 pmFRA-ORD
9h 35mnonstop
$785Lufthansa
Find Deal
Useful Info

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$222
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Chicago to Frankfurt Airport

When to book flights from Chicago to Heidelberg

Are your dates flexible? Find out the best times to travel from Chicago to Heidelberg based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Chicago to Heidelberg: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Chicago to Heidelberg 
Verified travelerFlew with LufthansaORD-FRASep 2024
I personally like Lufthansa, draw back are the distances to walk at the Frankfurt airport.
Verified travelerFlew with United AirlinesORD-FRASep 2024
Be prepared to wait in long line for boarder control. Allow enough time for your layover

FAQs for booking flights from Chicago to Heidelberg

  • Which airports will I be using when flying from Chicago to Heidelberg?

    When flying out of Chicago you’ll be using Chicago O'Hare Intl. Heidelberg does not have its own airport so you’ll be flying into nearby Frankfurt am Main airport, which is 44.6 mi away.

  • How long does a flight from Chicago to Heidelberg take?

    Direct flights cover the 4,322 miles separating Chicago and Heidelberg in about 9h 45m.

  • How many flights are there between Chicago and Heidelberg?

    13 direct flights run between Chicago and Heidelberg on a daily basis. On average, there are about 91 departures each week.

  • What’s the cheapest day of the week to fly between Chicago and Heidelberg?

    Consider leaving on a Sunday and avoid Tuesdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Mondays and the most expensive ones on Wednesdays.

  • How does KAYAK find such low prices on flights from Chicago to Heidelberg?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Heidelberg.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Heidelberg?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Heidelberg from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Heidelberg?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Heidelberg with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Heidelberg?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Heidelberg from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Chicago to Heidelberg?

    In the last 72 hours, the cheapest one-way ticket between Chicago and Heidelberg found on KAYAK was with Icelandair for $222. Icelandair offered a round-trip connection from $530 and Scandinavian Airlines from $549.

Top tips for finding cheap flights from Chicago to Heidelberg

  • There is no airport in Heidelberg. Instead, you’ll be flying into Frankfurt Airport when flying between Chicago and Heidelberg.
  • The cheapest flight from Chicago to Heidelberg was found 57 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is January.

Top 5 airlines serving Chicago to Heidelberg

Need help choosing which airline to fly with from Chicago to Heidelberg? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8708 reviews
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
6.6Food
Airline reviews

A bit rush for transit. Food and entertainment are not available

8.0 ExcellentAnonymous, Apr 2025ORD - SFO
Read more United Airlines reviews

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

They switched out gate from terminal 1 to terminal two ten minutes before boarding. So we had to make a 20 min crazy fast walk to a different terminal. Then we boarded the plane and waited for over 40 minutes until push back. Brutal

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

They cancelled our flight home less than 24 hours before it was supposed to leave. It partially ruined our last day because I was on the phone trying to get 5 people home and the stress that it causes. We still arrived at the airport with no definite flight plans. The actual flight was good but my kids really misses the kids meals I had ordered for them which obviously didn’t make it to the new flight.

Very helpful in getting us off the plane first to make a tight connection.

The seats were really cramped. The high backs on the chairs made you feel claustrophobic.

Maybe more diverse entertainment. Although the inflight cameras were amazing 10/10

Boarding was chaotic and the flight left late but arrived at a decent time. This may have been because of the sxsw festival that was going on.

Nothing special or negative. Pretty typical flight…no freebies in the way of food etcetera, but none were expected.

The flight got canceled and you just send an email in the middle of the night and no solution to how to get on the next flight or provide other solutions.

You cost me my time and did not compensate properly. Gfy.

Missed a connecting flight and SAS was at fault. I was awarded a $20 voucher in exchange for 8 hours of my time? Gfy.

Seat was lumpier than I’ve ever remembered it to be although comfortable when tilted back. I don’t recall being that hungry after being served food from SAS before. Flight attendant on the second flight to Aalborg seemed to be having a bad day.

I had an exit row and so was Comfortable on the long flight.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

Both flights were delayed and we missed our connection. Our second flight was delayed 3 times. I have always had great service and never any problems with my flights on Lufthansa. My last two flights were, unfortunately, awful. I fly quite often to Germany and have had better luck with United than Lufthansa.

Everything you need to know for your flight from Chicago to Heidelberg

Complete your trip to Heidelberg with a hotel stay or car rental

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.