Illinois

$340+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
Apr 22 — Apr 291
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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 April 17, 2025.

Round-trip from

$477
(Billigflug)

One-way from

$340
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$640

Good round-trip deal

$601 or less

Good one-way deal

$613 or less
From Frankfurt am Main to Illinois
One-way flight from Frankfurt am Main to Illinois
Highest demand for flights based on searches. 12% potential increase in price ($99 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Frankfurt am Main to Illinois.
Price to beat on a one-way flight from Frankfurt am Main to Illinois.

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 April 17, 2025.

This Billigflug deal was found by Cheapflights users on 4/16. 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.
Sun 5/119:55 amFRA - ORD
1 stop17h 17mMultiple Airlines
Tue 5/276:05 pmORD - FRA
1 stop11h 00mMultiple Airlines
Deal found 4/16$477
This Flysmarter deal was found by Cheapflights users on 4/16. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/24:15 pmFRA - ORD
2 stops22h 47mAir Canada
Tue 5/611:20 amORD - FRA
2 stops12h 50mAir Canada
Deal found 4/16$500
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/79:55 amFRA - ORD
1 stop30h 57mUnited Airlines
Mon 5/126:05 pmORD - FRA
1 stop11h 00mUnited Airlines
Deal found 4/17$504
This Lufthansa deal was found by Cheapflights users on 4/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/121:15 pmFRA - ORD
1 stop12h 00mLufthansa
Wed 5/286:25 pmORD - FRA
Nonstop8h 30mLufthansa
Deal found 4/16$507
This Billigflug deal was found by Cheapflights users on 4/16. 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 4/2310:55 amFRA - ORD
1 stop19h 54mFinnair
Sat 4/268:35 pmORD - FRA
1 stop29h 10mFinnair
Deal found 4/16$525
This AirNGo deal was found by Cheapflights users on 4/16. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/236:35 amFRA - ORD
1 stop14h 15mBritish Airways
Tue 7/810:35 pmORD - FRA
1 stop17h 05mBritish Airways
Deal found 4/16$538
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 9/299:20 amFRA - ORD
2 stops28h 00mAmerican Airlines
Sun 10/1910:35 pmORD - FRA
1 stop31h 10mAmerican Airlines
Deal found 4/17$542
This Ticket deal was found by Cheapflights users on 4/17. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1210:40 amFRA - MDW
1 stop17h 48mKLM
Wed 5/281:08 pmMDW - FRA
1 stop13h 42mKLM
Deal found 4/17$553
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:00 amFRA - ORD
1 stop14h 40mDelta
Wed 5/71:30 pmORD - FRA
2 stops14h 55mDelta
Deal found 4/16$553
This KLM deal was found by Cheapflights users on 4/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2910:15 amFRA - ORD
1 stop10h 55mKLM
Sun 6/82:00 pmORD - FRA
1 stop12h 50mKLM
Deal found 4/16$556
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/197:00 amFRA - MDW
2 stops18h 41mDelta
Sun 7/61:09 pmMDW - FRA
2 stops12h 51mDelta
Deal found 4/16$558
This Icelandair deal was found by Cheapflights users on 4/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/55:10 pmFRA - ORD
1 stop11h 05mIcelandair
Thu 10/167:25 pmORD - FRA
1 stop10h 35mIcelandair
Deal found 4/17$565

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 April 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 - ORD

FRAORD

Frankfurt am Main

Sun 5/11

9:55 am-8:12 pm

1 stop17h 17m

Chicago O'Hare Intl

Tue 5/27

6:05 pm-12:05 pm

1 stop11h 00m

$477

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Fri 5/2

4:15 pm-8:02 am

2 stops22h 47m

Chicago O'Hare Intl

Tue 5/6

11:20 am-7:10 am

2 stops12h 50m

$500

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Wed 5/7

9:55 am-9:52 am

1 stop30h 57m

Chicago O'Hare Intl

Mon 5/12

6:05 pm-12:05 pm

1 stop11h 00m

$504

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Mon 5/12

1:15 pm-6:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Wed 5/28

6:25 pm-9:55 am

Nonstop8h 30m

$507

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Sun 4/27

10:55 am-11:49 pm

1 stop19h 54m

Chicago O'Hare Intl

Sun 5/11

8:35 pm-8:45 am

1 stop29h 10m

$528

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Mon 6/23

6:35 am-1:50 pm

1 stop14h 15m

Chicago O'Hare Intl

Tue 7/8

10:35 pm-10:40 pm

1 stop17h 05m

$538

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Mon 9/29

9:20 am-9:25 pm

1 stop19h 05m

Chicago O'Hare Intl

Sun 10/19

8:35 pm-12:45 pm

1 stop33h 10m

$542

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

Mon 5/12

10:40 am-9:28 pm

1 stop17h 48m

Chicago Midway

Wed 5/28

1:08 pm-9:50 am

1 stop13h 42m

$553

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Sun 4/27

7:00 am-2:10 pm

1 stop14h 10m

Chicago O'Hare Intl

Tue 5/6

10:25 am-9:00 am

2 stops15h 35m

$553

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

Thu 5/29

10:15 am-2:10 pm

1 stop10h 55m

Chicago O'Hare Intl

Sun 6/8

2:00 pm-9:50 am

1 stop12h 50m

$556

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

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, 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 April 17, 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 April 17, 2025.

The most flights from FRA to USIL are scheduled on a Monday (13 on average). You will have fewer flight options on Tuesday, 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 April 17, 2025.
Read reviews from past customers who have flown Delta, KLM and LOT from Frankfurt am Main to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

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
8.0
Very good
8.0
Very good

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

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 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 Air Serbia, which is currently one of the cheapest options available, starting at $428. TAP AIR PORTUGAL flights start at $508 while deals on Aer Lingus start at $547 one-way.

  • What are the most popular routes 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 (100%), Air Canada (74%) and United Airlines (74%).

  • 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 $1,961, our data shows the cheapest flight currently is $526. When looking at the most popular route, (Frankfurt am Main - Chicago O'Hare Intl), you can expect to pay $477 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.

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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$390Average$568FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$762FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$509Average$636FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$553Average$677FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$558Average$709FlexibilityNo cancel feeOn-time69%

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