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$302+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap 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 February 22, 2025.

Round-trip from

$509
(Billigflug)

One-way from

$302
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$587
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. 13% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 February 22, 2025.

This Billigflug deal was found by Cheapflights users on 2/22. 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.
Sat 3/19:50 amFRA - ORD
1 stop18h 25mVirgin Atlantic
Sat 3/151:26 pmORD - FRA
1 stop12h 24mVirgin Atlantic
Deal found 2/22$509
This Expedia deal was found by Cheapflights users on 2/21. 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.
Sat 3/88:05 amFRA - ORD
1 stop13h 40mBritish Airways
Mon 3/244:27 pmORD - FRA
2 stops17h 03mBritish Airways
Deal found 2/21$510
This Lufthansa deal was found by Cheapflights users on 2/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/125:25 pmFRA - ORD
Nonstop9h 40mLufthansa
Wed 3/194:15 pmORD - FRA
Nonstop8h 20mLufthansa
Deal found 2/21$511
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Sat 3/85:25 pmFRA - ORD
Nonstop9h 40mUnited Airlines
Mon 3/247:35 pmORD - FRA
Nonstop8h 20mUnited Airlines
Deal found 2/22$512
This Air Canada deal was found by Cheapflights users on 2/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/127:50 amFRA - ORD
2 stops16h 49mAir Canada
Tue 3/189:40 pmORD - FRA
2 stops27h 45mAir Canada
Deal found 2/21$514
This Delta deal was found by Cheapflights users on 2/21. 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.
Tue 3/1810:15 amFRA - MDW
2 stops18h 08mDelta
Tue 3/256:42 pmMDW - FRA
2 stops15h 58mDelta
Deal found 2/21$518
This Delta deal was found by Cheapflights users on 2/21. 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.
Mon 3/36:55 amFRA - ORD
2 stops16h 18mDelta
Mon 3/176:15 pmORD - FRA
2 stops16h 25mDelta
Deal found 2/21$518
This Orbitz deal was found by Cheapflights users on 2/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:30 amFRA - ORD
1 stop15h 00mMultiple Airlines
Thu 3/611:45 amORD - FRA
2 stops19h 40mMultiple Airlines
Deal found 2/20$526
This Gotogate deal was found by Cheapflights users on 2/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:00 pmFRA - ORD
1 stop11h 15mIcelandair
Tue 9/307:25 pmORD - FRA
1 stop10h 35mIcelandair
Deal found 2/21$533
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 2/267:55 pmFRA - ORD
1 stop25h 35mFinnair
Mon 3/1012:05 pmORD - FRA
1 stop13h 10mFinnair
Deal found 2/22$534
This Expedia deal was found by Cheapflights users on 2/21. 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 3/78:20 amFRA - STL
2 stops22h 12mMultiple Airlines
Sun 3/234:45 pmSTL - FRA
Nonstop8h 40mMultiple Airlines
Deal found 2/21$540
This Austrian Airlines deal was found by Cheapflights users on 2/21. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/143:50 pmFRA - ORD
1 stop28h 30mAustrian Airlines
Sun 4/276:05 pmORD - FRA
2 stops15h 20mAustrian Airlines
Deal found 2/21$541

Find flights from Frankfurt am Main to Illinois within your budget

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 February 22, 2025.

Fly from

Frankfurt am Main

Fly to

Illinois

Route

Depart

Return

Price

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Fri 3/7

11:40 am-8:46 pm

1 stop16h 06m

Chicago O'Hare Intl

Fri 3/21

1:26 pm-7:50 am

1 stop12h 24m

$509

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Sat 3/8

8:05 am-2:45 pm

1 stop13h 40m

Chicago O'Hare Intl

Mon 3/24

4:27 pm-3:30 pm

2 stops17h 03m

$510

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Wed 3/12

5:25 pm-9:05 pm

Nonstop9h 40m

Chicago O'Hare Intl

Wed 3/19

4:15 pm-6:35 am

Nonstop8h 20m

$511

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Sat 3/8

5:25 pm-8:05 pm

Nonstop9h 40m

Chicago O'Hare Intl

Mon 3/24

7:35 pm-9:55 am

Nonstop8h 20m

$512

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Wed 3/12

7:50 am-6:39 pm

2 stops16h 49m

Chicago O'Hare Intl

Tue 3/18

9:40 pm-7:25 am

2 stops27h 45m

$514

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Tue 3/18

10:15 am-10:23 pm

2 stops18h 08m

Chicago Midway

Tue 3/25

6:42 pm-4:40 pm

2 stops15h 58m

$518

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Fri 3/7

6:55 am-5:25 pm

2 stops17h 30m

Chicago O'Hare Intl

Mon 3/10

1:26 pm-11:15 am

2 stops15h 49m

$518

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Fri 3/7

7:25 am-12:55 pm

1 stop12h 30m

Chicago O'Hare Intl

Sun 3/23

7:31 am-6:30 am

2 stops16h 59m

$535

Frankfurt am MainSt. Louis

FRA - STL

FRASTL

Frankfurt am Main

Fri 3/7

8:20 am-11:32 pm

2 stops22h 12m

Lambert-St Louis

Sun 3/23

4:45 pm-7:25 am

Nonstop8h 40m

$540

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Mon 4/14

3:50 pm-1:20 pm

1 stop28h 30m

Chicago O'Hare Intl

Sun 4/27

6:05 pm-4:25 pm

2 stops15h 20m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 57 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.

Travel insights for flights from Frankfurt am Main to Illinois

Get recent, data-driven insights about flights from Frankfurt am Main to Illinois including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Frankfurt am Main to Illinois (average of $245). Flying from Frankfurt am Main 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 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 February 22, 2025.

When flying from Frankfurt am Main 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 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 February 22, 2025.

The most flights from FK0 to USIL are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 February 22, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Frankfurt am Main to Illinois to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,203 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,203 reviews
Delta
8.0
Very good
8,203 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,332 reviews
Delta
8.0
Very good
8,203 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,203 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.5
Good
771 reviews
Delta
8.0
Very good
8,203 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,566 reviews
Delta
8.0
Very good
8,203 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 Air Serbia ($415), Icelandair ($483), and Lufthansa ($505).

  • 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 am Main - Lambert-St Louis 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: Qatar Airways (83%), Atlas Air (58%), Thai Airways( 56%).

  • 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 $679, our data indicates the cheapest price to be $551. The most popular route (Frankfurt am Main - Chicago O'Hare Intl), is priced around $445.

  • 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, August is the cheapest month in which you can book a flight from Frankfurt am Main to Illinois (average of $245). Flying from Frankfurt am Main 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 am Main to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Frankfurt am Main to Illinois

Discover the top 7 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$460Average$537FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$487Average$762FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$488Average$631FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$501Average$658FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$506Average$620FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$553Average$786FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$569Average$712FlexibilityNo cancel feeOn-time69%
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