$406 Find Cheap Flights from Frankfurt Airport to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Frankfurt to Illinois departing on 5/9. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Frankfurt am Main to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Frankfurt am Main to Illinois, as well as popular online travel agencies
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Cheap Flights from Frankfurt to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Moline
Moline2 stops$795
St. Louis
St. Louis2 stops$704
Moline
Moline2 stops$795
St. Louis
St. Louis2 stops$704

Book Cheap Frankfurt to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Frankfurt to Illinois 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 Frankfurt to Illinois

Mon, May 4 - Mon, May 18
Icelandair Logo
2:00 pm - 6:15 pm
FRA
-
ORD
11h 15m
1 stop
Icelandair Logo
7:25 pm - 1:00 pm
ORD
-
FRA
10h 35m
1 stop
$552Icelandair
Tue, Apr 7 - Sat, Apr 25
Icelandair Logo
5:10 pm - 6:15 pm
FRA
-
ORD
32h 05m
1 stop
Icelandair Logo
7:25 pm - 4:20 pm
ORD
-
FRA
13h 55m
1 stop
$562Icelandair
Tue, Apr 7 - Tue, Apr 28
Icelandair Logo
5:10 pm - 6:15 pm
FRA
-
ORD
32h 05m
1 stop
Icelandair Logo
7:25 pm - 1:00 pm
ORD
-
FRA
10h 35m
1 stop
$563Icelandair
Thu, May 28 - Wed, Jun 3
Scandinavian Airlines Logo
8:30 pm - 4:10 pm
FRA
-
ORD
26h 40m
1 stop
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
FRA
12h 20m
1 stop
$564Scandinavian Airlines
Tue, May 12 - Mon, May 25
Delta Logo
10:40 am - 9:09 pm
FRA
-
MDW
17h 29m
1 stop
Delta Logo
1:22 pm - 9:50 am
MDW
-
FRA
13h 28m
1 stop
$665Delta
Mon, May 11 - Mon, May 18
Multiple Airlines Logo
12:30 pm - 8:45 pm
FRA
-
MDW
15h 15m
1 stop
Multiple Airlines Logo
7:40 am - 5:45 am
MDW
-
FRA
15h 05m
1 stop
$673Multiple Airlines
Sat, May 2 - Tue, May 12
Delta Logo
7:00 am - 6:36 pm
FRA
-
MDW
18h 36m
2 stops
Delta Logo
1:59 pm - 11:25 am
MDW
-
FRA
14h 26m
2 stops
$701Delta
Fri, Apr 17 - Sun, May 3
Multiple Airlines Logo
9:45 pm - 11:57 pm
FRA
-
STL
33h 12m
2 stops
Multiple Airlines Logo
7:09 pm - 2:05 pm
STL
-
FRA
11h 56m
1 stop
$704Multiple Airlines
Fri, Apr 17 - Sun, May 3
Lufthansa Logo
1:10 pm - 7:22 pm
FRA
-
STL
13h 12m
1 stop
Lufthansa Logo
1:24 pm - 9:55 am
STL
-
FRA
13h 31m
1 stop
$722Lufthansa
Sun, Apr 5 - Sun, Apr 19
Lufthansa Logo
10:40 am - 1:25 pm
FRA
-
STL
9h 45mnonstop
Lufthansa Logo
6:55 pm - 2:05 pm
STL
-
FRA
12h 10m
1 stop
$724Lufthansa
Booking Insights

KAYAK's insights & trends for Frankfurt to Illinois flights

Get data-powered insights and trends into flights from Frankfurt to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Frankfurt am Main Airport to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Frankfurt am Main Airport to Illinois departing in May.

What is the cheapest Frankfurt am Main Airport to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Frankfurt am Main Airport found in the last 72 hours was to Chicago, at $694 round-trip. The most popular route is from Frankfurt am Main Airport (FRA) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $694.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Frankfurt am Main Airport to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $727 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $790.

Can I save money by flying with a layover from Frankfurt am Main Airport to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $763 on average.

What is the cheapest month to fly from Frankfurt am Main Airport to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Frankfurt am Main Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Frankfurt am Main Airport to Illinois is September, when tickets cost $648 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $907 and $786 respectively.

What’s the cheapest day of the week to fly from Frankfurt Airport to Illinois?

The average price of all round-trip flights from Frankfurt am Main Airport to Illinois clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Thursday and more expensive on a Saturday. On your return trip to Frankfurt Airport, you should consider flying back on a Wednesday, and avoid Saturdays for better deals.

How far in advance should I book a flight from Frankfurt am Main Airport to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Frankfurt am Main Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Frankfurt am Main Airport to Illinois, you should book around 5 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$406
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Frankfurt Airport to Chicago

Flights from Frankfurt to Illinois: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Frankfurt to Illinois 
KEVINFlew with Lufthansa
FRA
-
ORD
Dec 2025
Don't buy business class. It"s a relatively short day time flight. and not worth the extra expense. Stick with premium economy.
HeatherFlew with Lufthansa
FRA
-
ORD
Aug 2024
They are super strict on carry-on size and weight. I have never seen an airline weigh a carry-on before. If you are flying through Germany, make sure to alott yourself extra time to stand in a giant line for a passport check, even though it was already checked when boarding to Germany (not sure what could have changed with it during the flight!). They had given some of our seats away on our connecting flight because we barely made it to the gate in time for departure.
Verified travelerFlew with Lufthansa
FRA
-
ORD
Mar 2024
Avoid Frankfurt and O'Hare if you can. Use Amsterdam as your European hub and Minneapolis or Dallas as your hub in middle America.

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Frankfurt Airport to Illinois?

    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 Frankfurt Airport to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Frankfurt Airport to Illinois 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 Frankfurt Airport to Illinois?

    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 from Frankfurt Airport to Illinois with an airline and back with another airline.

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

    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 from Frankfurt Airport to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Frankfurt Airport to the following destinations at these prices or less: Chicago $816 one-way - $762 round-trip

Reviews of the top 3 airlines serving from Frankfurt to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Frankfurt am Main to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Frankfurt to Illinois? 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 9436 reviews
7.1Entertainment
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

6.0 GoodAnonymous, Mar 2026
FRA - ORD
Read more United Airlines reviews

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

They never clean the toilet, and the food is worse

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Chargers didn’t work, no entertainment and we had to wait for taxiing for easily 40 minutes after arriving early. Bags were late too!

No real complaints. The in flight food was much better than I expected. The in flight entertainment was excellent.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Horrible Flight significantly delayed. Not due to united issue. But trying to rebook connection flight and get information about overnight accommodation was difficult. Agent did not seem to care or have any interest to help.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

It was good. The seats in economy weren’t bad

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Booked seats (paid extra) online and found they didn’t exist on the flight. We were then separated from the rest of our party. Given seats in the very back of the plane. We will not fly Discover or Lufthansa again. We will not book flights or travel through Kayak again!

Everything you need to know for your flight from Frankfurt to Illinois

Information on your arrival and departure airports