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$174+ Cheap flights from Illinois to Spain

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Illinois to Spain

Keep the following information in mind while searching for Illinois to Spain flight deals. Data was last updated August 14, 2025.

Round-trip from

$331
(oojo)

One-way from

$174
(Cheapflightsfares)

Popular in

June

Cheapest in

November

Average price

$639

Good round-trip deal

$467 or less

Good one-way deal

$461 or less
From Illinois to Spain
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One-way flight from Illinois to Spain
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Highest demand for flights based on searches. 30% potential increase in price ($315 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Illinois to Spain.
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Price to beat on a one-way flight from Illinois to Spain.
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Find flight deals from Illinois to Spain

Cheapest flights from Illinois to Spain
Explore the most affordable flight options available from Illinois to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:15 pmORD - MAD
1 stop11h 25mTAP AIR PORTUGAL
Wed 10/2210:15 pmMAD - ORD
1 stop21h 20mTAP AIR PORTUGAL
Deal found 8/12$336
This FlightHub deal was found by Cheapflights users on 8/13. 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.
Sun 11/28:25 pmORD - MAD
1 stop20h 05mTAP AIR PORTUGAL
Tue 11/189:10 pmMAD - ORD
1 stop24h 50mTAP AIR PORTUGAL
Deal found 8/13$337
This FlightHub deal was found by Cheapflights users on 8/13. 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.
Sun 11/98:25 pmORD - MAD
1 stop20h 05mTAP AIR PORTUGAL
Wed 11/197:40 amMAD - ORD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 8/13$347
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/14. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:15 pmORD - MAD
1 stop10h 50mTAP AIR PORTUGAL
Fri 11/77:40 amMAD - ORD
1 stop14h 35mTAP AIR PORTUGAL
Deal found 8/14$348
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/74:30 pmORD - MAD
Nonstop8h 25mIberia
Thu 10/234:40 pmMAD - ORD
Nonstop9h 10mIberia
Deal found 8/12$350
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Sun 11/98:25 pmORD - MAD
1 stop31h 55mTAP AIR PORTUGAL
Thu 11/206:00 pmMAD - ORD
1 stop28h 15mTAP AIR PORTUGAL
Deal found 8/12$351
This Finnair deal was found by Cheapflights users on 8/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:45 pmORD - MAD
Nonstop8h 10mFinnair
Thu 11/2011:35 amMAD - ORD
Nonstop9h 55mFinnair
Deal found 8/11$353
This oojo deal was found by Cheapflights users on 8/14. 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.
Fri 11/147:20 pmORD - AGP
1 stop31h 30mScandinavian Airlines
Fri 11/217:35 pmAGP - ORD
1 stop28h 10mScandinavian Airlines
Deal found 8/14$355
This Finnair deal was found by Cheapflights users on 8/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:22 pmORD - MAD
1 stop14h 03mFinnair
Fri 11/1411:35 amMAD - ORD
Nonstop9h 55mFinnair
Deal found 8/11$358
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Fri 10/319:15 pmORD - MAD
1 stop10h 50mTAP AIR PORTUGAL
Tue 11/189:10 pmMAD - ORD
1 stop24h 50mTAP AIR PORTUGAL
Deal found 8/12$359
This Air Canada deal was found by Cheapflights users on 8/12. 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.
Tue 9/2310:40 amORD - MAD
1 stop13h 00mAir Canada
Thu 10/2312:30 pmMAD - ORD
2 stops26h 30mAir Canada
Deal found 8/12$360
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 10/2210:30 pmORD - MAD
Nonstop7h 55mBritish Airways
Wed 10/2911:35 amMAD - ORD
Nonstop9h 55mBritish Airways
Deal found 8/12$361

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Spain 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 August 14, 2025.
Use the filters below to find and compare flights from Illinois to Spain that are best for you.

Fly from

Illinois

Fly to

Spain

Route

Depart

Return

Price

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Fri 10/31

9:15 pm-2:05 pm

1 stop10h 50m

Madrid Barajas

Fri 11/7

7:40 am-3:15 pm

1 stop14h 35m

$348

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 11/12

4:45 pm-7:55 am

Nonstop8h 10m

Madrid Barajas

Thu 11/20

11:35 am-2:30 pm

Nonstop9h 55m

$353

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Mon 9/29

4:30 pm-7:55 am

Nonstop8h 25m

Madrid Barajas

Wed 11/12

11:35 am-2:30 pm

Nonstop9h 55m

$353

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 11/5

4:45 pm-7:55 am

Nonstop8h 10m

Madrid Barajas

Fri 11/14

11:35 am-2:30 pm

Nonstop9h 55m

$353

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Mon 10/27

5:40 pm-10:20 am

1 stop10h 40m

Madrid Barajas

Fri 11/14

11:35 am-2:30 pm

Nonstop9h 55m

$358

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 11/5

2:50 pm-8:55 am

1 stop11h 05m

Madrid Barajas

Fri 11/14

11:35 am-2:30 pm

Nonstop9h 55m

$358

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 10/29

1:22 pm-9:25 am

1 stop14h 03m

Madrid Barajas

Wed 11/12

11:35 am-2:30 pm

Nonstop9h 55m

$358

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Tue 10/28

1:22 pm-9:25 am

1 stop14h 03m

Madrid Barajas

Fri 11/14

11:35 am-2:30 pm

Nonstop9h 55m

$358

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 11/12

4:45 pm-7:55 am

Nonstop8h 10m

Madrid Barajas

Thu 11/20

1:00 pm-7:18 pm

1 stop13h 18m

$363

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Mon 9/29

4:30 pm-7:55 am

Nonstop8h 25m

Madrid Barajas

Wed 11/12

11:00 am-5:38 pm

1 stop13h 38m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Spain

Have a flexible travel schedule? Discover the best time to fly to Spain 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 Spain

What is the cheapest month to book a flight from Illinois to Spain?

Currently, November is the cheapest month in which you can book a flight from Illinois to Spain (average of $543). Flying from Illinois to Spain in June is currently the most expensive (average of $1,053). 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 ES?

Find hourly flight availability from Illinois to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

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

Weekly flight availability from Illinois to Spain

Explore weekly flight availability from Illinois to Spain. 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 August 14, 2025.

The most flights from USIL to ES0 are scheduled on a Wednesday (14 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Spain 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 Spain?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Spain (average of $543). Flying from Illinois to Spain in June is currently the most expensive (average of $1,053). 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

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Alternative routes for Illinois to Spain

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 Spain

Discover the top 10 airlines that operate flights from Illinois to Spain. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$120Average$203FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$288Average$707FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$348Average$468FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$679FlexibilityNo cancel feeOn-time67%
FinnairCheapest$379Average$713FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$387Average$564FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$401Average$945FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$440Average$889FlexibilityNo cancel feeOn-time69%
DeltaCheapest$455Average$818FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$457Average$919FlexibilityNo cancel feeOn-time77%

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