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Frankfurt

$227+ Cheap flights from Illinois to Frankfurt (FRA)

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FRA
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Frankfurt

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

Round-trip from

$636
(Booking.com)

One-way from

$220
(Booking.com)

Popular in

July

Cheapest in

April

Average price

$1,172

Good round-trip deal

$752 or less

Good one-way deal

$539 or less
From Illinois to Frankfurt am Main
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One-way flight from Illinois to Frankfurt am Main
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Highest demand for flights based on searches. 11% potential increase in price ($117 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 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 Illinois to Frankfurt am Main.
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Price to beat on a one-way flight from Illinois to Frankfurt am Main.
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Find flight deals from Illinois to Frankfurt

Cheapest flights from Illinois to Frankfurt
Explore the most affordable flight options available from Illinois to Frankfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/284:55 pmORD - FRA
1 stop20h 25mAer Lingus
mar. 11/1110:45 amFRA - ORD
1 stop14h 10mAer Lingus
Deal found 7/30$636
This Condor 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/156:45 amORD - FRA
1 stop16h 00mMultiple Airlines
jue. 9/1811:45 amFRA - ORD
1 stop14h 10mMultiple Airlines
Deal found 7/30$638
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/128:15 pmORD - FRA
1 stop13h 40mTAP AIR PORTUGAL
mar. 12/235:45 pmFRA - ORD
1 stop28h 15mTAP AIR PORTUGAL
Deal found 7/30$639
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/117:15 pmORD - FRA
1 stop17h 30mScandinavian Airlines
vie. 8/223:20 pmFRA - ORD
1 stop31h 50mScandinavian Airlines
Deal found 7/28$646
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/611:45 pmORD - FRA
1 stop30h 55mTurkish Airlines
mié. 8/1311:25 amFRA - ORD
1 stop29h 15mTurkish Airlines
Deal found 7/29$661
This AirNGo 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/124:05 pmSTL - FRA
1 stop12h 05mAir Canada
mié. 11/199:45 amFRA - STL
2 stops20h 00mAir Canada
Deal found 7/30$693
This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/2410:30 pmORD - FRA
Nonstop8h 35mLufthansa
mar. 9/910:50 amFRA - ORD
Nonstop9h 05mLufthansa
Deal found 7/31$693
This flugladen.de 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/123:50 pmSTL - FRA
Nonstop8h 40mMultiple Airlines
mié. 11/195:10 pmFRA - STL
1 stop29h 19mMultiple Airlines
Deal found 7/30$711
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/233:50 pmSTL - FRA
Nonstop8h 40mLufthansa
mié. 12/1710:45 amFRA - STL
Nonstop10h 10mLufthansa
Deal found 7/30$724
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/193:50 pmSTL - FRA
Nonstop8h 40mUnited Airlines
mié. 11/269:45 amFRA - STL
2 stops32h 06mUnited Airlines
Deal found 7/30$730
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/103:36 pmSTL - FRA
2 stops16h 04mScandinavian Airlines
mié. 9/243:20 pmFRA - STL
2 stops39h 04mScandinavian Airlines
Deal found 7/30$734
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/236:30 amMLI - FRA
1 stop19h 15mAmerican Airlines
mar. 9/309:20 amFRA - MLI
1 stop20h 05mAmerican Airlines
Deal found 7/30$817

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Frankfurt 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 julio 31, 2025.
Use the filters below to find and compare flights from Illinois to Frankfurt am Main Airport that are best for you.

Fly from

Illinois

Fly to

Frankfurt

Route

Depart

Return

Price

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

mar. 10/28

4:55 pm-7:20 pm

1 stop20h 25m

Frankfurt am Main

mar. 11/11

10:45 am-5:55 pm

1 stop14h 10m

$636

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

lun. 9/15

6:45 am-5:45 am

1 stop16h 00m

Frankfurt am Main

jue. 9/18

11:45 am-6:55 pm

1 stop14h 10m

$638

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

lun. 8/11

7:15 pm-7:45 pm

1 stop17h 30m

Frankfurt am Main

vie. 8/22

3:20 pm-4:10 pm

1 stop31h 50m

$646

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

mié. 8/6

11:45 pm-1:40 pm

1 stop30h 55m

Frankfurt am Main

mié. 8/13

11:25 am-9:40 am

1 stop29h 15m

$661

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

dom. 8/17

6:00 pm-10:20 pm

1 stop21h 20m

Frankfurt am Main

jue. 8/28

6:05 am-12:50 pm

1 stop13h 45m

$671

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

dom. 8/24

10:15 pm-1:00 pm

1 stop31h 45m

Frankfurt am Main

mar. 9/9

2:00 pm-6:15 pm

1 stop11h 15m

$682

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

mié. 11/12

4:05 pm-11:10 am

1 stop12h 05m

Frankfurt am Main

mié. 11/19

9:45 am-10:45 pm

2 stops20h 00m

$693

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

dom. 8/24

10:30 pm-2:05 pm

Nonstop8h 35m

Frankfurt am Main

mar. 9/9

10:50 am-12:55 pm

Nonstop9h 05m

$693

ChicagoFrankfurt am Main

ORD - FRA

ORDFRA

Chicago O'Hare Intl

mar. 8/12

4:30 pm-10:35 pm

1 stop23h 05m

Frankfurt am Main

vie. 8/22

6:30 am-6:50 pm

1 stop19h 20m

$711

St. LouisFrankfurt am Main

STL - FRA

STLFRA

Lambert-St Louis

mié. 11/12

3:50 pm-7:30 am

Nonstop8h 40m

Frankfurt am Main

mié. 11/19

5:10 pm-3:29 pm

1 stop29h 19m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 40 results
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Best time to book a flight from Illinois to Frankfurt

Have a flexible travel schedule? Discover the best time to fly to Frankfurt from Illinois 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 Illinois to Frankfurt am Main Airport

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Frankfurt am Main Airport (average of $729). Flying from Illinois to Frankfurt am Main Airport in June is currently the most expensive (average of $1,088). 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 IL to FRA?

Find hourly flight availability from Illinois to Frankfurt. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Frankfurt am Main Airport as you normally would.

Weekly flight availability from Illinois to Frankfurt am Main Airport

Explore weekly flight availability from Illinois to Frankfurt. 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 julio 31, 2025.

The most flights from USIL to FRA 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).

Reviews of airlines servicing Frankfurt

Get insights into the airlines that provide service to Frankfurt. 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 Frankfurt. Reviews last updated julio 31, 2025.
Get a feel of what it's like to fly with Singapore Airlines, Delta, and KLM from Illinois to Frankfurt am Main Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,338 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very good
1,338 reviews
Singapore Airlines
8.1
Very good
1,338 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Delta
8.0
Very good
7,981 reviews
Singapore Airlines
8.1
Very good
1,338 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
KLM
7.8
Good
1,383 reviews
Singapore Airlines
8.1
Very good
1,338 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Air France
7.5
Good
1,465 reviews
Singapore Airlines
8.1
Very good
1,338 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
United Airlines
7.4
Good
8,900 reviews
Singapore Airlines
8.1
Very good
1,338 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

Find useful and relevant information for your journey from Illinois to Frankfurt. 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 Illinois to Frankfurt am Main Airport 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 $220. Singapore Airlines flights start at $361 while deals on Scandinavian Airlines start at $363 one-way.

  • What are the most popular routes from Illinois to Frankfurt am Main Airport?

    While some choose either Lambert-St Louis - Frankfurt am Main or Chicago Midway - Frankfurt am Main, Chicago O'Hare Intl - Frankfurt am Main is the most popular route from Illinois to Frankfurt am Main Airport.

  • What are the most reliable airlines from Illinois to Frankfurt am Main Airport?

    The top 3 most reliable airlines when flying from Illinois to Frankfurt am Main Airport are Lufthansa (63%), Air Canada (57%) and United Airlines (57%).

  • What are the cheapest flights from Illinois to Frankfurt am Main Airport?

    Looking for the cheapest flight from Illinois to Frankfurt am Main Airport? While on average our users pay $2,772, our data indicates the cheapest price to be $440. The most popular route (Chicago O'Hare Intl - Frankfurt am Main), is priced around $545.

  • Can I find deals for flights from Illinois to Frankfurt that include hotel bookings?

    Yes. In addition to deals on Illinois to Frankfurt flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Frankfurt?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Frankfurt.

  • Can I find deals for business class flights from Illinois to Frankfurt?

    Yes. Cheapflights offers flight deals from Illinois to Frankfurt 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 Illinois to Frankfurt am Main Airport?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Frankfurt am Main Airport (average of $729). Flying from Illinois to Frankfurt am Main Airport in June is currently the most expensive (average of $1,088). 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.

See more FAQs

Traveling to a place near Frankfurt am Main Airport?

Book flights to Frankfurt am Main Airport if you plan to visit one of these locations
Koblenz
Baden-Baden
Wurzburg
Wiesbaden
Speyer
Trier
Boppard
Mainz

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Alternative routes for Illinois to Frankfurt

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Frankfurt

Discover the top 10 airlines that operate flights from Illinois to Frankfurt. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$881FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$264Average$580FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$692FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$485Average$782FlexibilityNo cancel feeOn-time71%
TAP AIR PORTUGALCheapest$505Average$842FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$584Average$794FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$591Average$842FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$609Average$696FlexibilityNo cancel feeOn-time77%
KLMCheapest$652Average$886FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$682Average$1,055FlexibilityNo cancel feeOn-time69%

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