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$426+ Cheap flights from Frankfurt (FRA) 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Frankfurt to Illinois

Cheapest flights from Frankfurt to Illinois
Explore the most affordable flight options available from Frankfurt to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. 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
Sun 1/117:10 pmORD - FRA
1 stop12h 20mScandinavian Airlines
Deal found 12/15$660
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 12/15. 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
Fri 1/97:20 pmORD - FRA
1 stop31h 30mScandinavian Airlines
Deal found 12/15$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 Ticket deal was found by Cheapflights users on 12/15. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:50 amFRA - ORD
Nonstop9h 20mLufthansa
Sun 1/1110:35 pmORD - FRA
Nonstop8h 25mLufthansa
Deal found 12/15$665
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/15. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:45 pmFRA - ORD
1 stop28h 15mTAP AIR PORTUGAL
Sun 3/18:25 pmORD - FRA
1 stop19h 15mTAP AIR PORTUGAL
Deal found 12/15$668
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 United Airlines deal was found by Cheapflights users on 12/15. 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 1/97:00 amSTL - FRA
1 stop19h 10mUnited Airlines
Deal found 12/15$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 Flighttix deal was found by Cheapflights users on 12/15. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:10 pmFRA - STL
1 stop33h 12mMultiple Airlines
Fri 1/94:05 pmSTL - FRA
2 stops32h 20mMultiple Airlines
Deal found 12/15$712
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

Find flight deals from Frankfurt to Illinois

Keep the following information in mind while searching for Frankfurt to Illinois flight deals. Data was last updated December 17, 2025.

Round-trip from

$657
(Air Serbia)

One-way from

$426
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$793

Good round-trip deal

$721 or less

Good one-way deal

$771 or less
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
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Price to beat on a round-trip flight from Frankfurt am Main to Illinois.
Search Deals
Price to beat on a one-way flight from Frankfurt am Main to Illinois.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Frankfurt 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 17, 2025.
Use the filters below to find and compare flights from Frankfurt am Main Airport to Illinois that are best for you.

Fly from

Frankfurt

Fly to

Illinois

Route

Depart

Return

Price

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-4:29 pm

2 stops16h 34m

Chicago Midway

Sat 2/7

1:26 pm-11:15 am

2 stops14h 49m

$672

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Wed 1/14

11:50 am-9:05 pm

2 stops16h 15m

Chicago O'Hare Intl

Wed 1/21

10:29 am-8:55 am

2 stops15h 26m

$672

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Sat 2/28

6:55 am-5:43 pm

2 stops17h 48m

Chicago O'Hare Intl

Mon 3/9

2:25 pm-11:15 am

2 stops14h 50m

$672

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Fri 3/13

10:15 am-9:34 pm

2 stops17h 19m

Chicago O'Hare Intl

Mon 3/23

5:39 pm-4:45 pm

2 stops17h 06m

$672

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Thu 1/15

10:15 am-10:07 pm

2 stops18h 52m

Chicago Midway

Wed 1/28

1:26 pm-7:50 am

1 stop11h 24m

$676

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Sat 2/7

6:55 am-4:16 pm

2 stops16h 21m

Chicago Midway

Thu 2/26

10:53 am-8:40 am

1 stop14h 47m

$676

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Fri 1/23

6:55 am-5:29 pm

2 stops17h 34m

Chicago Midway

Wed 4/1

12:47 pm-8:55 am

1 stop13h 08m

$676

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Fri 1/30

6:55 am-6:36 pm

2 stops18h 41m

Chicago Midway

Fri 2/6

9:33 am-7:50 am

1 stop15h 17m

$676

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Fri 3/6

6:55 am-6:37 pm

2 stops18h 42m

Chicago Midway

Sat 3/14

9:32 am-7:50 am

1 stop16h 18m

$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 to Illinois

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

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

Currently, February is the cheapest month in which you can book a flight from Frankfurt am Main Airport to Illinois (average of $344). Flying from Frankfurt am Main Airport 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 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 17, 2025.

One of the essential ways to save on airfare from Frankfurt am Main Airport 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 39% on airfare.

Weekly flight availability from Frankfurt am Main Airport to Illinois

Explore weekly flight availability from Frankfurt 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 17, 2025.

The most flights from FRA to USIL are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, 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 Airport 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 17, 2025.
See what other customers who have flown with Delta, United Airlines, and Icelandair from Frankfurt am Main Airport to Illinois have to say. 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.
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

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
8,008 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

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
9,092 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

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
8,008 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

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
7,632 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

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
7,583 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

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 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 Airport to Illinois?

    A quick flight from Frankfurt am Main Airport to Illinois can take about 16h 19m. Delta provides one of the quickest options available for as low as $672. The distance from Frankfurt am Main Airport to Illinois is about 4331 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $419. British Airways flights start at $437 while deals on TAP AIR PORTUGAL start at $439 one-way.

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

    While some choose either Frankfurt am Main - Chicago Midway or Frankfurt am Main - Lambert-St Louis, Frankfurt am Main - Chicago O'Hare Intl is the most popular route from Frankfurt am Main Airport to Illinois.

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

    The top 3 most reliable airlines when flying from Frankfurt am Main Airport to Illinois are Air Canada (80%), United Airlines (80%) and Lufthansa (80%).

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

    While on average a flight from Frankfurt am Main Airport to Illinois is generally $1,185, our data shows the cheapest flight currently is $623. When looking at the most popular route, (Frankfurt am Main - Chicago O'Hare Intl), you can expect to pay $484 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Frankfurt 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 Airport to Illinois?

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

Discover the top 4 airlines that operate flights from Frankfurt 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 17, 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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