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$185+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$365
(eDestinos)

One-way from

$185
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$662

Good round-trip deal

$547 or less

Good one-way deal

$464 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 ($313 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:45 pmORD - MAD
Nonstop8h 10mIberia
Wed 12/1011:35 amMAD - ORD
Nonstop9h 55mIberia
Deal found 9/14$365
This lol.travel deal was found by Cheapflights users on 9/15. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:25 pmORD - MAD
1 stop13h 45mTAP AIR PORTUGAL
Tue 11/116:00 pmMAD - ORD
1 stop28h 00mTAP AIR PORTUGAL
Deal found 9/15$375
This oojo deal was found by Cheapflights users on 9/15. 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.
Wed 11/127:10 pmORD - MAD
1 stop11h 55mTAP AIR PORTUGAL
Thu 11/209:10 pmMAD - ORD
1 stop25h 05mTAP AIR PORTUGAL
Deal found 9/15$376
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:10 pmORD - MAD
1 stop18h 10mTAP AIR PORTUGAL
Fri 11/217:40 amMAD - ORD
1 stop14h 35mTAP AIR PORTUGAL
Deal found 9/16$377
This oojo deal was found by Cheapflights users on 9/15. 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.
Wed 11/57:10 pmORD - MAD
1 stop11h 55mTAP AIR PORTUGAL
Wed 11/197:40 amMAD - ORD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 9/15$382
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:10 pmORD - MAD
1 stop21h 20mTAP AIR PORTUGAL
Wed 11/197:40 amMAD - ORD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 9/16$383
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:25 pmORD - MAD
1 stop13h 45mTAP AIR PORTUGAL
Wed 11/197:40 amMAD - ORD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 9/16$387
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Mon 10/61:30 pmSTL - MAD
1 stop10h 10mAir Canada
Wed 10/2212:45 pmMAD - STL
2 stops33h 33mAir Canada
Deal found 9/15$417
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/121:30 pmSTL - MAD
1 stop10h 10mUnited Airlines
Wed 10/2212:45 pmMAD - STL
2 stops32h 42mUnited Airlines
Deal found 9/16$418
This eDestinos deal was found by Cheapflights users on 9/15. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:48 pmSTL - MAD
1 stop12h 32mIberia
Mon 12/811:35 amMAD - STL
1 stop14h 31mIberia
Deal found 9/15$419
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 11/16:43 pmSTL - MAD
2 stops31h 17mUnited Airlines
Fri 11/141:35 pmMAD - STL
2 stops33h 11mUnited Airlines
Deal found 9/15$422
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 10/66:00 amSTL - MAD
2 stops18h 50mDelta
Wed 10/2212:40 pmMAD - STL
2 stops28h 46mDelta
Deal found 9/15$437

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 September 17, 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

Sat 10/25

5:55 pm-9:05 am

1 stop32h 10m

Madrid Barajas

Fri 11/7

1:35 pm-11:18 am

1 stop28h 43m

$417

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sun 10/12

1:30 pm-6:40 am

1 stop10h 10m

Madrid Barajas

Wed 10/22

12:45 pm-2:27 pm

2 stops32h 42m

$418

ChicagoPalma de Mallorca

ORD - PMI

ORDPMI

Chicago O'Hare Intl

Mon 3/9

8:20 pm-9:05 am

1 stop30h 45m

Palma de Mallorca Son Sant Joan

Wed 3/18

9:55 am-5:45 pm

1 stop13h 50m

$422

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Mon 11/3

2:50 pm-8:55 am

1 stop11h 05m

Madrid Barajas

Tue 11/11

11:35 am-2:30 pm

Nonstop9h 55m

$428

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Tue 9/23

11:00 am-8:05 am

2 stops14h 05m

Madrid Barajas

Fri 10/3

10:50 am-6:15 pm

2 stops14h 25m

$443

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Sat 10/11

4:05 pm-8:20 am

1 stop33h 15m

Madrid Barajas

Wed 10/22

12:30 pm-3:18 pm

1 stop33h 48m

$444

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Tue 10/7

9:15 am-8:20 am

1 stop16h 05m

Madrid Barajas

Wed 10/22

12:30 pm-3:18 pm

1 stop33h 48m

$444

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Wed 11/5

4:41 pm-1:05 pm

1 stop13h 24m

Madrid Barajas

Wed 11/19

11:35 am-8:23 pm

1 stop15h 48m

$445

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 11/12

3:45 pm-3:20 pm

2 stops16h 35m

Madrid Barajas

Thu 11/20

10:00 am-9:27 pm

1 stop18h 27m

$457

ChicagoMadrid

ORD - MAD

ORDMAD

Chicago O'Hare Intl

Wed 11/12

10:30 am-11:30 am

2 stops18h 00m

Madrid Barajas

Fri 11/21

10:00 am-9:27 pm

1 stop18h 27m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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 $1,054). 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 September 17, 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 September 17, 2025.

The most flights from USIL to ES0 are scheduled on a Monday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 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.

  • How long is the flight from Illinois to Spain?

    United Airlines, Scandinavian Airlines, and Delta can get you from Illinois to Spain in just under 19h. Your travel time can differ by up to 13h 10m. Illinois and Spain are separated by a distance of 4187 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to Spain one-way?

    The cheapest airlines for a one-way flight from Illinois to Spain are TAP AIR PORTUGAL ($185), Scandinavian Airlines ($376), and KLM ($382).

  • 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 $1,054). 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$120Average$203FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$288Average$711FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$349Average$473FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$663FlexibilityNo cancel feeOn-time67%
FinnairCheapest$373Average$714FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$383Average$541FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$401Average$974FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$427Average$864FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$438Average$707FlexibilityNo cancel feeOn-time70%
IberiaCheapest$455Average$910FlexibilityNo cancel feeOn-time77%

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