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$338+ Cheap flights from Frankfurt am Main to Illinois

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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Frankfurt am Main to Illinois

Cheapest flights from Frankfurt am Main to Illinois
Explore the most affordable flight options available from Frankfurt am Main to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/267:25 amFRA - STL
2 stops21h 18mLufthansa
Fri 1/911:22 amSTL - FRA
1 stop14h 48mLufthansa
Deal found 12/16$662
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/243:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Thu 1/87:20 pmORD - FRA
1 stop12h 10mScandinavian Airlines
Deal found 12/17$663
This Travelis deal was found by Cheapflights users on 12/16. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:25 amFRA - ORD
1 stop12h 20mLufthansa
Sun 1/113:45 pmORD - FRA
1 stop13h 20mLufthansa
Deal found 12/16$667
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Fri 12/266:00 amFRA - ORD
1 stop16h 25mTAP AIR PORTUGAL
Sun 1/118:25 pmORD - FRA
1 stop19h 15mTAP AIR PORTUGAL
Deal found 12/17$670
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/267:25 amFRA - ORD
1 stop12h 20mLufthansa
Mon 1/125:50 pmORD - FRA
1 stop11h 15mLufthansa
Deal found 12/16$675
This Billigflug deal was found by Cheapflights users on 12/16. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:50 amFRA - ORD
1 stop15h 32mMultiple Airlines
Sun 1/115:32 pmORD - FRA
1 stop30h 43mMultiple Airlines
Deal found 12/16$681
This Billigflug deal was found by Cheapflights users on 12/16. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:20 amFRA - ORD
1 stop15h 05mMultiple Airlines
Tue 12/307:11 amORD - FRA
1 stop18h 39mMultiple Airlines
Deal found 12/16$682
This Scandinavian Airlines deal was found by Cheapflights users on 12/16. 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 12/243:15 pmFRA - ORD
1 stop32h 30mScandinavian Airlines
Mon 1/127:05 amORD - FRA
2 stops19h 45mScandinavian Airlines
Deal found 12/16$683
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:45 amFRA - STL
Nonstop10h 10mUnited Airlines
Fri 1/93:50 pmSTL - FRA
Nonstop8h 40mUnited Airlines
Deal found 12/16$701
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Fri 12/2610:50 amFRA - STL
1 stop15h 40mAmerican Airlines
Fri 1/98:13 amSTL - FRA
1 stop16h 02mAmerican Airlines
Deal found 12/17$708
This Expedia deal was found by Cheapflights users on 12/16. 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.
Fri 12/269:00 amFRA - STL
2 stops17h 22mBrussels Airlines
Fri 1/912:44 pmSTL - FRA
2 stops19h 51mBrussels Airlines
Deal found 12/16$716
This Delta deal was found by Cheapflights users on 12/17. 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.
Thu 12/259:50 amFRA - MDW
1 stop19h 32mDelta
Mon 1/121:28 pmMDW - FRA
1 stop11h 22mDelta
Deal found 12/17$778

Find flight deals from Frankfurt am Main to Illinois

Keep the following information in mind while searching for Frankfurt am Main to Illinois flight deals. Data was last updated December 18, 2025.

Round-trip from

$656
(LOT)

One-way from

$338
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$793
From Frankfurt am Main to Illinois
Search Deals
One-way flight from Frankfurt am Main to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Frankfurt am Main to Illinois 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 December 18, 2025.
Use the filters below to find and compare flights from Frankfurt am Main to Illinois that are best for you.

Fly from

Frankfurt am Main

Fly to

Illinois

Route

Depart

Return

Price

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Wed 3/4

6:55 am-2:20 pm

1 stop14h 25m

Chicago O'Hare Intl

Wed 3/18

2:25 pm-11:15 am

2 stops14h 50m

$667

Frankfurt am MainChicago

HHN - ORD

HHNORD

Frankfurt-Hahn

Mon 1/12

11:40 pm-3:00 pm

3 stops46h 20m

Chicago O'Hare Intl

Sun 1/25

6:30 pm-11:15 pm

3 stops21h 45m

$672

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Sat 2/14

6:55 am-4:14 pm

2 stops16h 19m

Chicago Midway

Sat 2/21

1:28 pm-11:15 am

2 stops14h 47m

$672

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Sat 1/17

6:55 am-4:16 pm

2 stops16h 21m

Chicago Midway

Sat 2/7

1:26 pm-11:15 am

2 stops14h 49m

$672

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Mon 1/12

6:55 am-5:45 pm

2 stops17h 50m

Chicago O'Hare Intl

Sun 1/25

5:20 pm-11:15 am

1 stop10h 55m

$672

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Thu 1/15

6:55 am-9:05 pm

2 stops21h 10m

Chicago O'Hare Intl

Wed 1/28

10:29 am-8:55 am

2 stops15h 26m

$672

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Fri 1/30

11:50 am-10:29 pm

2 stops17h 39m

Chicago O'Hare Intl

Fri 2/6

10:29 am-11:15 am

2 stops17h 46m

$672

Frankfurt am MainChicago

HHN - ORD

HHNORD

Frankfurt-Hahn

Mon 2/2

10:40 pm-3:00 pm

3 stops47h 20m

Chicago O'Hare Intl

Fri 2/6

6:30 pm-11:25 pm

3 stops21h 55m

$673

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Sat 1/31

6:55 am-2:20 pm

1 stop14h 25m

Chicago O'Hare Intl

Sat 2/7

2:30 pm-11:05 am

2 stops13h 35m

$676

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Fri 1/30

6:55 am-5:55 pm

2 stops18h 00m

Chicago Midway

Fri 2/6

12:48 pm-8:40 am

1 stop12h 52m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Frankfurt am Main to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Frankfurt am Main 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 Frankfurt am Main to Illinois

What is the cheapest month to book a flight from Frankfurt am Main to Illinois?

Currently, February is the cheapest month in which you can book a flight from Frankfurt am Main to Illinois (average of $344). Flying from Frankfurt am Main to Illinois in July is currently the most expensive (average of $669). 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 FRA to IL?

Find hourly flight availability from Frankfurt am Main to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from Frankfurt am Main to Illinois is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 38% on airfare.

Weekly flight availability from Frankfurt am Main to Illinois

Explore weekly flight availability from Frankfurt am Main to Illinois. 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 December 18, 2025.

The most flights from FK0 to USIL are scheduled on a Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from Frankfurt am Main to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 18, 2025.
Read through reviews of airlines operating flights from Frankfurt am Main to Illinois, such as Delta, United Airlines, and Icelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,006 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,006 reviews
Delta
7.9
Good
8,006 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,006 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.0
Good
591 reviews
Delta
7.9
Good
8,006 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,634 reviews
Delta
7.9
Good
8,006 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,585 reviews
Delta
7.9
Good
8,006 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Frankfurt am Main to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Frankfurt am Main to Illinois?

    There are many flights that can get you from Frankfurt am Main to Illinois in 14h 25m. Fly via Delta, Lufthansa, or American Airlines to get the fastest option. Frankfurt am Main and Illinois are separated by a distance of 4328 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Frankfurt am Main to Illinois one-way?

    The cheapest airlines for a one-way flight from Frankfurt am Main to Illinois are Icelandair ($419), British Airways ($437), and TAP AIR PORTUGAL ($439).

  • What are the most popular routes from Frankfurt am Main to Illinois?

    When deciding which route to take from Frankfurt am Main to Illinois consider Frankfurt am Main - Chicago O'Hare Intl, Frankfurt am Main - Chicago Midway or Frankfurt-Hahn - Chicago O'Hare Intl as they are the most popular.

  • What are the most reliable airlines from Frankfurt am Main to Illinois?

    Before booking your flight to Illinois from Frankfurt am Main, check out the most reliable airlines to get you to your destination on time: Air Canada (80%), United Airlines (80%), Lufthansa( 80%).

  • What are the cheapest flights from Frankfurt am Main to Illinois?

    Looking for the cheapest flight from Frankfurt am Main to Illinois? While on average our users pay $1,185, our data indicates the cheapest price to be $623. The most popular route (Frankfurt am Main - Chicago O'Hare Intl), is priced around $484.

  • Can I find deals for flights from Frankfurt am Main to Illinois that include hotel bookings?

    Yes. In addition to deals on Frankfurt am Main to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Frankfurt am Main to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Frankfurt am Main to Illinois.

  • Can I find deals for business class flights from Frankfurt am Main to Illinois?

    Yes. Cheapflights offers flight deals from Frankfurt am Main to Illinois 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 Frankfurt am Main to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Frankfurt am Main to Illinois (average of $344). Flying from Frankfurt am Main to Illinois in July is currently the most expensive (average of $669). 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.

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Alternative routes for Frankfurt am Main to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Frankfurt am Main to Illinois

Discover the top 4 airlines that operate flights from Frankfurt am Main to Illinois. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$390Average$568FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$524Average$607FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$528Average$750FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$552Average$717FlexibilityNo cancel feeOn-time76%

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