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$339+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
may. 6 — may. 131
mar. 5/6
mar. 5/13
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 mayo 1, 2025.

Round-trip from

$507
(United Airlines)

One-way from

$339
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$663
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. 12% potential increase in price ($97 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in May 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 mayo 1, 2025.

This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/129:45 amFRA - ORD
1 stop13h 10mMultiple Airlines
sáb. 6/286:25 pmORD - FRA
Nonstop8h 30mMultiple Airlines
Deal found 4/29$507
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/154:30 pmFRA - ORD
1 stop27h 15mUnited Airlines
mié. 5/281:04 pmORD - FRA
1 stop11h 16mUnited Airlines
Deal found 4/29$508
This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/151:15 pmFRA - ORD
1 stop12h 00mLufthansa
mié. 5/283:10 pmORD - FRA
Nonstop8h 20mLufthansa
Deal found 4/29$510
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/209:45 amFRA - ORD
2 stops15h 37mAir Canada
mar. 5/2712:00 pmORD - FRA
2 stops13h 10mAir Canada
Deal found 4/29$514
This AirNGo deal was found by Cheapflights users on 4/29. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/2310:55 amFRA - ORD
1 stop20h 02mBritish Airways
mar. 7/84:36 pmORD - FRA
2 stops23h 04mBritish Airways
Deal found 4/29$536
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1710:55 amFRA - ORD
1 stop17h 30mAmerican Airlines
mié. 7/28:30 pmORD - FRA
1 stop14h 45mAmerican Airlines
Deal found 4/29$554
This flugladen.de deal was found by Cheapflights users on 4/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/67:00 amFRA - ORD
1 stop14h 10mKLM
mar. 5/201:30 pmORD - FRA
1 stop12h 10mKLM
Deal found 4/29$558
This SWISS deal was found by Cheapflights users on 4/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/236:40 amFRA - ORD
1 stop12h 30mSWISS
dom. 6/17:05 pmORD - FRA
1 stop11h 50mSWISS
Deal found 4/29$560
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/167:00 amFRA - MDW
2 stops18h 28mDelta
sáb. 9/131:00 pmMDW - FRA
2 stops15h 25mDelta
Deal found 4/29$561
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/207:00 amFRA - ORD
2 stops18h 03mDelta
jue. 7/1011:20 amORD - FRA
2 stops14h 40mDelta
Deal found 4/29$561
This flugladen.de deal was found by Cheapflights users on 4/28. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/510:40 amFRA - MDW
1 stop13h 56mKLM
lun. 6/91:09 pmMDW - FRA
1 stop13h 41mKLM
Deal found 4/28$572
This Virgin Atlantic deal was found by Cheapflights users on 4/29. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/2411:00 amFRA - MDW
2 stops17h 13mVirgin Atlantic
jue. 5/2910:25 amMDW - FRA
2 stops16h 25mVirgin Atlantic
Deal found 4/29$573

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 mayo 1, 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

jue. 6/12

9:45 am-3:55 pm

1 stop13h 10m

Chicago O'Hare Intl

sáb. 6/28

6:25 pm-9:55 am

Nonstop8h 30m

$507

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

jue. 5/15

4:30 pm-12:45 pm

1 stop27h 15m

Chicago O'Hare Intl

mié. 5/28

1:04 pm-7:20 am

1 stop11h 16m

$508

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

jue. 5/15

1:15 pm-6:15 pm

1 stop12h 00m

Chicago O'Hare Intl

mié. 5/28

3:10 pm-6:30 am

Nonstop8h 20m

$510

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

mar. 5/20

9:45 am-6:22 pm

2 stops15h 37m

Chicago O'Hare Intl

mar. 5/27

12:00 pm-8:10 am

2 stops13h 10m

$514

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

lun. 6/23

10:55 am-11:57 pm

1 stop20h 02m

Chicago O'Hare Intl

mar. 7/8

4:36 pm-10:40 pm

2 stops23h 04m

$536

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

sáb. 5/10

10:55 am-7:40 pm

1 stop15h 45m

Chicago O'Hare Intl

dom. 5/25

7:15 pm-10:25 pm

1 stop20h 10m

$543

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

jue. 6/19

10:15 am-2:10 pm

1 stop10h 55m

Chicago O'Hare Intl

vie. 7/4

2:00 pm-9:50 am

1 stop12h 50m

$559

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

vie. 5/23

6:40 am-12:10 pm

1 stop12h 30m

Chicago O'Hare Intl

dom. 6/1

7:05 pm-1:55 pm

1 stop11h 50m

$560

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

sáb. 8/16

7:00 am-6:28 pm

2 stops18h 28m

Chicago Midway

sáb. 9/13

1:00 pm-11:25 am

2 stops15h 25m

$561

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

vie. 6/20

7:00 am-6:03 pm

2 stops18h 03m

Chicago O'Hare Intl

jue. 7/10

11:20 am-9:00 am

2 stops14h 40m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 56 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, 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 mayo 1, 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 mayo 1, 2025.

The most flights from FK0 to USIL are scheduled on a Monday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 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 mayo 1, 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
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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 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 ($502), TAP AIR PORTUGAL ($528), and Aer Lingus ($539).

  • 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: Qatar Airways (100%), Air Canada (74%), United Airlines( 74%).

  • 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 $2,153, our data indicates the cheapest price to be $526. The most popular route (Frankfurt am Main - Chicago O'Hare Intl), is priced around $479.

  • 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 5 airlines flying from Frankfurt am Main to Illinois

Discover the top 5 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$390Average$568FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$757FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$509Average$631FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$553Average$779FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$558Average$718FlexibilityNo cancel feeOn-time69%

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