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$363+ 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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
FRA — ORD
abr. 27 — may. 41
dom. 4/27
dom. 5/4
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 abril 22, 2025.

Round-trip from

$502
(Flysmarter)

One-way from

$363
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$639
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 ($96 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 April 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 abril 22, 2025.

This Flysmarter deal was found by Cheapflights users on 4/22. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/94:15 pmFRA - ORD
2 stops22h 47mAir Canada
lun. 5/128:40 amORD - FRA
1 stop16h 30mAir Canada
Deal found 4/22$506
This Orbitz deal was found by Cheapflights users on 4/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/59:30 amFRA - ORD
1 stop13h 25mMultiple Airlines
lun. 5/126:15 pmORD - FRA
Nonstop8h 40mMultiple Airlines
Deal found 4/21$507
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mié. 5/219:55 amFRA - ORD
1 stop32h 29mUnited Airlines
jue. 6/56:05 pmORD - FRA
1 stop11h 00mUnited Airlines
Deal found 4/22$508
This Lufthansa deal was found by Cheapflights users on 4/22. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/117:15 amFRA - ORD
1 stop12h 15mLufthansa
mar. 5/276:25 pmORD - FRA
Nonstop8h 30mLufthansa
Deal found 4/22$516
This Billigflug deal was found by Cheapflights users on 4/22. 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.
mar. 4/2910:55 amFRA - ORD
1 stop15h 27mFinnair
mar. 5/1312:09 pmORD - FRA
1 stop13h 36mFinnair
Deal found 4/22$534
This Flightnetwork deal was found by Cheapflights users on 4/22. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/281:05 pmFRA - ORD
1 stop11h 15mIcelandair
vie. 12/126:30 pmORD - FRA
1 stop10h 35mIcelandair
Deal found 4/22$541
This Priceline deal was found by Cheapflights users on 4/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/286:35 amFRA - ORD
1 stop12h 10mBritish Airways
lun. 5/510:25 pmORD - FRA
1 stop14h 20mBritish Airways
Deal found 4/21$545
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2111:30 amFRA - ORD
1 stop13h 20mAmerican Airlines
lun. 9/85:25 pmORD - FRA
2 stops22h 00mAmerican Airlines
Deal found 4/22$553
This Ticket deal was found by Cheapflights users on 4/22. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/610:40 amFRA - MDW
1 stop17h 47mKLM
vie. 6/131:09 pmMDW - FRA
1 stop13h 41mKLM
Deal found 4/22$554
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/215:40 pmHHN - ORD
2 stops34h 35mMultiple Airlines
mié. 5/287:25 pmORD - HHN
2 stops20h 35mMultiple Airlines
Deal found 4/21$556
This Delta deal was found by Cheapflights users on 4/21. 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.
mié. 6/410:15 amFRA - MDW
2 stops15h 30mDelta
mar. 6/241:09 pmMDW - FRA
2 stops12h 51mDelta
Deal found 4/21$562
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/297:00 amFRA - ORD
1 stop14h 10mDelta
mar. 5/66:15 pmORD - FRA
2 stops16h 30mDelta
Deal found 4/22$562

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 abril 22, 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

sáb. 5/10

9:45 am-8:12 pm

2 stops17h 27m

Chicago O'Hare Intl

mié. 5/14

10:40 am-8:10 am

1 stop14h 30m

$502

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

mié. 5/7

9:55 am-8:12 pm

1 stop17h 17m

Chicago O'Hare Intl

lun. 5/12

4:05 pm-11:05 am

1 stop12h 00m

$506

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

lun. 5/5

9:30 am-3:55 pm

1 stop13h 25m

Chicago O'Hare Intl

lun. 5/12

6:15 pm-9:55 am

Nonstop8h 40m

$507

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

mié. 5/7

12:15 pm-6:15 pm

1 stop13h 00m

Chicago O'Hare Intl

dom. 5/11

6:15 pm-9:55 am

Nonstop8h 40m

$511

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

dom. 5/4

6:40 am-12:10 pm

1 stop12h 30m

Chicago O'Hare Intl

dom. 5/11

2:20 pm-9:20 am

1 stop12h 00m

$539

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

sáb. 5/3

10:55 am-7:00 pm

1 stop15h 05m

Chicago O'Hare Intl

sáb. 5/10

3:45 pm-10:15 am

1 stop11h 30m

$542

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

lun. 9/29

9:20 am-9:25 pm

2 stops19h 05m

Chicago O'Hare Intl

mar. 10/14

10:35 pm-7:50 pm

1 stop14h 15m

$544

Frankfurt am MainChicago

FRA - ORD

FRAORD

Frankfurt am Main

mié. 10/1

3:20 pm-4:10 pm

1 stop31h 50m

Chicago O'Hare Intl

mar. 10/14

7:15 pm-7:45 pm

1 stop17h 30m

$548

Frankfurt am MainChicago

FRA - MDW

FRAMDW

Frankfurt am Main

vie. 6/6

10:40 am-9:27 pm

1 stop17h 47m

Chicago Midway

vie. 6/13

1:09 pm-9:50 am

1 stop13h 41m

$554

Frankfurt am MainChicago

HHN - ORD

HHNORD

Frankfurt-Hahn

mié. 5/21

5:40 pm-9:15 pm

2 stops34h 35m

Chicago O'Hare Intl

mié. 5/28

7:25 pm-11:00 pm

2 stops20h 35m

$556

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 55 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 abril 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 abril 22, 2025.

The most flights from FK0 to USIL are scheduled on a Monday (13 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 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 abril 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
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

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
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

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 ($403), TAP AIR PORTUGAL ($449), and Aer Lingus ($550).

  • 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 $1,971, our data indicates the cheapest price to be $526. The most popular route (Frankfurt am Main - Chicago O'Hare Intl), is priced around $455.

  • 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 abril 22, 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$784FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$558Average$713FlexibilityNo cancel feeOn-time69%

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