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$369+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
ago 5 — ago 121
ter 8/5
ter 8/12
1 adult, Economy
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Cheap flight deals from Frankfurt to Illinois

Keep the following information in mind while searching for Frankfurt to Illinois flight deals. Data was last updated julho 31, 2025.

Round-trip from

$554
(Expedia)

One-way from

$369
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$874

Good round-trip deal

$775 or less

Good one-way deal

$769 or less
From Frankfurt am Main to Illinois
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One-way flight from Frankfurt am Main to Illinois
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Highest demand for flights based on searches. 11% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Frankfurt am Main to Illinois.
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Price to beat on a one-way flight from Frankfurt am Main to Illinois.
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Find 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 julho 31, 2025.

This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 10/212:00 pmFRA - ORD
1 stop11h 15mIcelandair
seg 10/277:30 pmORD - FRA
1 stop10h 35mIcelandair
Deal found 7/29$554
This AirNGo deal was found by Cheapflights users on 7/31. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/199:55 amFRA - STL
1 stop17h 02mAir Canada
sex 10/31:30 pmSTL - FRA
1 stop11h 40mAir Canada
Deal found 7/31$555
This Travelis deal was found by Cheapflights users on 7/31. 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.
seg 9/110:50 amFRA - ORD
Nonstop9h 05mLufthansa
dom 9/1410:30 pmORD - FRA
Nonstop8h 35mLufthansa
Deal found 7/31$556
This Billigflug deal was found by Cheapflights users on 7/31. 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.
sex 8/1510:55 amFRA - ORD
1 stop27h 29mMultiple Airlines
seg 9/1510:35 pmORD - FRA
1 stop14h 10mMultiple Airlines
Deal found 7/31$558
This Scandinavian Airlines deal was found by Cheapflights users on 7/30. 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.
qui 9/48:30 pmFRA - ORD
1 stop26h 40mScandinavian Airlines
seg 9/87:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
Deal found 7/30$560
This AirNGo deal was found by Cheapflights users on 7/31. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/1910:40 amFRA - STL
Nonstop9h 50mUnited Airlines
sex 10/312:25 pmSTL - FRA
1 stop14h 30mUnited Airlines
Deal found 7/31$562
This AirNGo deal was found by Cheapflights users on 7/31. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 9/110:50 amFRA - ORD
Nonstop9h 05mUnited Airlines
dom 9/1410:30 pmORD - FRA
Nonstop8h 35mUnited Airlines
Deal found 7/31$563
This Flysmarter deal was found by Cheapflights users on 7/30. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 10/319:50 amFRA - ORD
2 stops15h 40mAir Canada
sex 11/1412:50 pmORD - FRA
1 stop11h 35mAir Canada
Deal found 7/30$568
This Flighttix deal was found by Cheapflights users on 7/31. 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.
sex 9/1910:40 amFRA - STL
Nonstop9h 50mLufthansa
sex 10/33:30 pmSTL - FRA
Nonstop8h 55mLufthansa
Deal found 7/31$570
This Sembo deal was found by Cheapflights users on 7/31. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/275:25 pmFRA - STL
1 stop31h 14mMultiple Airlines
sáb 12/274:05 pmSTL - FRA
1 stop31h 35mMultiple Airlines
Deal found 7/31$571
This American Airlines deal was found by Cheapflights users on 7/31. 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.
seg 11/2410:50 amFRA - STL
2 stops17h 52mAmerican Airlines
seg 12/296:30 pmSTL - FRA
2 stops16h 40mAmerican Airlines
Deal found 7/31$577
This American Airlines deal was found by Cheapflights users on 7/31. 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.
sáb 9/69:20 amFRA - ORD
1 stop13h 37mAmerican Airlines
qua 9/2411:46 amORD - FRA
2 stops23h 29mAmerican Airlines
Deal found 7/31$577

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 julho 31, 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 - ORD

FRAORD

Frankfurt am Main

ter 10/21

2:00 pm-6:15 pm

1 stop11h 15m

Chicago O'Hare Intl

seg 10/27

7:30 pm-12:05 pm

1 stop10h 35m

$554

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

sex 9/19

9:55 am-7:57 pm

1 stop17h 02m

Lambert-St Louis

sex 10/3

1:30 pm-8:10 am

1 stop11h 40m

$555

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

seg 9/1

10:50 am-12:55 pm

Nonstop9h 05m

Chicago O'Hare Intl

dom 9/14

10:30 pm-2:05 pm

Nonstop8h 35m

$556

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

sex 8/15

10:55 am-7:24 am

1 stop27h 29m

Chicago O'Hare Intl

seg 9/15

10:35 pm-7:45 pm

1 stop14h 10m

$558

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

qui 9/4

8:30 pm-4:10 pm

1 stop26h 40m

Chicago O'Hare Intl

seg 9/8

7:15 pm-7:45 pm

1 stop17h 30m

$560

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

sex 9/19

10:40 am-1:30 pm

Nonstop9h 50m

Lambert-St Louis

sex 10/3

12:25 pm-9:55 am

1 stop14h 30m

$562

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

seg 9/1

10:50 am-12:55 pm

Nonstop9h 05m

Chicago O'Hare Intl

dom 9/14

10:30 pm-2:05 pm

Nonstop8h 35m

$563

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

sex 9/5

10:55 am-7:00 pm

1 stop15h 05m

Chicago O'Hare Intl

qui 9/18

3:45 pm-10:15 am

1 stop11h 30m

$568

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

sex 9/19

10:40 am-1:30 pm

Nonstop9h 50m

Lambert-St Louis

sex 10/3

3:30 pm-7:25 am

Nonstop8h 55m

$570

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

qui 11/27

5:25 pm-5:39 pm

1 stop31h 14m

Lambert-St Louis

sáb 12/27

4:05 pm-6:40 am

1 stop31h 35m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 43 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, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to Illinois (average of $245). Flying from Frankfurt am Main Airport to Illinois in March is currently the most expensive (average of $321). 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 julho 31, 2025.

When flying from Frankfurt am Main Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 julho 31, 2025.

The most flights from FRA to USIL are scheduled on a Tuesday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 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 julho 31, 2025.
See what other customers who have flown with Delta, KLM, and Finnair 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
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • 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 TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $380. Aer Lingus flights start at $656 while deals on Lufthansa start at $701 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 Qatar Airways (57%), Lufthansa (57%) and Atlas Air (55%).

  • 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 $897, our data shows the cheapest flight currently is $653. When looking at the most popular route, (Frankfurt am Main - Chicago O'Hare Intl), you can expect to pay $474 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, August is the cheapest month in which you can book a flight from Frankfurt am Main Airport to Illinois (average of $245). Flying from Frankfurt am Main Airport to Illinois in March is currently the most expensive (average of $321). 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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Frankfurt to Philadelphia flights

Top 5 airlines flying from Frankfurt to Illinois

Discover the top 5 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 julho 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$390Average$568FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$659FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$524Average$607FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$543Average$721FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$553Average$683FlexibilityNo cancel feeOn-time76%

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