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$213+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAD
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
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 November 5, 2025.

Round-trip from

$429
(Delta)

One-way from

$213
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$534

Good round-trip deal

$557 or less

Good one-way deal

$394 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. 29% potential increase in price ($294 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 5, 2025.

This KLM deal was found by Cheapflights users on 11/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:30 pmSTL - MAD
1 stop32h 30mKLM
Wed 12/1711:15 amMAD - STL
1 stop14h 18mKLM
Deal found 11/4$429
This KLM deal was found by Cheapflights users on 11/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:39 amSTL - MAD
1 stop14h 36mKLM
Tue 12/1610:00 amMAD - STL
1 stop13h 35mKLM
Deal found 11/3$438
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Mon 11/1012:31 pmSTL - BCN
2 stops16h 29mLufthansa
Wed 11/266:50 amBCN - STL
1 stop14h 05mLufthansa
Deal found 11/3$439
This oojo deal was found by Cheapflights users on 11/2. 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.
Thu 11/277:20 pmORD - BCN
1 stop16h 00mScandinavian Airlines
Sun 12/77:10 pmBCN - ORD
1 stop28h 35mScandinavian Airlines
Deal found 11/2$445
This Booking.com deal was found by Cheapflights users on 11/3. 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.
Sun 11/93:35 pmORD - BCN
1 stop11h 00mAir Canada
Tue 11/255:50 amBCN - ORD
2 stops16h 05mAir Canada
Deal found 11/3$446
This Delta deal was found by Cheapflights users on 11/4. 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 12/17:02 pmSTL - MAD
2 stops15h 38mDelta
Wed 12/1710:00 amMAD - STL
2 stops17h 47mDelta
Deal found 11/4$448
This oojo deal was found by Cheapflights users on 11/5. 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 11/288:15 pmORD - SVQ
1 stop20h 30mTAP AIR PORTUGAL
Thu 12/43:25 pmSVQ - ORD
1 stop31h 00mTAP AIR PORTUGAL
Deal found 11/5$449
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/1910:35 pmORD - BCN
1 stop12h 10mLufthansa
Thu 11/276:50 amBCN - ORD
1 stop13h 20mLufthansa
Deal found 11/3$449
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Wed 11/267:20 pmORD - BCN
1 stop16h 00mScandinavian Airlines
Sun 12/77:10 pmBCN - ORD
1 stop28h 35mScandinavian Airlines
Deal found 11/2$450
This Delta deal was found by Cheapflights users on 11/4. 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.
Wed 11/126:15 pmORD - BCN
2 stops15h 50mDelta
Wed 11/1910:15 amBCN - ORD
1 stop14h 38mDelta
Deal found 11/4$452
This KAYAK deal was found by Cheapflights users on 11/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:20 pmORD - SVQ
1 stop15h 05mScandinavian Airlines
Sat 12/136:15 pmSVQ - ORD
1 stop29h 30mScandinavian Airlines
Deal found 11/4$453
This Delta deal was found by Cheapflights users on 11/3. 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.
Wed 11/121:47 pmMDW - BCN
2 stops14h 23mDelta
Wed 11/1910:55 amBCN - MDW
1 stop19h 45mDelta
Deal found 11/3$453

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 November 5, 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

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 12/1

11:39 am-9:15 am

1 stop14h 36m

Madrid Barajas

Tue 12/16

10:00 am-4:35 pm

1 stop13h 35m

$438

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 11/10

12:31 pm-12:00 pm

2 stops16h 29m

Barcelona-El Prat

Wed 11/26

6:50 am-1:55 pm

1 stop14h 05m

$439

St. LouisMadrid

STL - MAD

STLMAD

Lambert-St Louis

Mon 12/1

7:02 pm-5:40 pm

2 stops15h 38m

Madrid Barajas

Wed 12/17

10:00 am-8:47 pm

2 stops17h 47m

$448

ChicagoSeville

ORD - SVQ

ORDSVQ

Chicago O'Hare Intl

Wed 3/4

7:10 pm-11:45 pm

1 stop21h 35m

Sevilla

Wed 3/11

10:00 am-4:00 pm

1 stop12h 00m

$450

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Mon 11/24

11:19 am-8:40 am

1 stop14h 21m

Barcelona-El Prat

Wed 12/3

9:55 am-3:10 pm

1 stop12h 15m

$451

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Tue 11/18

1:25 pm-8:00 am

1 stop11h 35m

Barcelona-El Prat

Wed 12/3

9:55 am-3:10 pm

1 stop12h 15m

$451

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Wed 11/26

4:26 pm-5:05 pm

2 stops17h 39m

Barcelona-El Prat

Tue 12/9

10:15 am-9:39 pm

1 stop18h 24m

$453

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Thu 12/4

8:30 am-8:20 am

1 stop16h 50m

Barcelona-El Prat

Thu 12/11

1:35 pm-10:45 pm

2 stops40h 10m

$461

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 2/2

8:45 am-9:35 am

2 stops17h 50m

Barcelona-El Prat

Mon 2/16

1:35 pm-10:00 pm

2 stops39h 25m

$461

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Sun 11/9

5:23 am-8:40 am

1 stop20h 17m

Barcelona-El Prat

Tue 11/18

6:00 am-9:36 pm

2 stops22h 36m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

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, September is the cheapest month in which you can book a flight from Illinois to Spain (average of $289). Flying from Illinois to Spain in June is currently the most expensive (average of $641). 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 November 5, 2025.

It’s optimal to fly from Illinois to Spain in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Illinois to Spain?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Spain. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Spain flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 5, 2025.

The most flights from USIL to ES0 are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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?

    KLM, Lufthansa, and Delta can get you from Illinois to Spain in just under 14h 36m. Your travel time can differ by up to 1h 53m. Illinois and Spain are separated by a distance of 4414 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 ($287), Delta ($333), and Lufthansa ($371).

  • 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, September is the cheapest month in which you can book a flight from Illinois to Spain (average of $289). Flying from Illinois to Spain in June is currently the most expensive (average of $641). 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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$120Average$203FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$288Average$712FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$364Average$730FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$366Average$478FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$674FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$383Average$549FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$401Average$665FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$433Average$856FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$438Average$798FlexibilityNo cancel feeOn-time70%
IberiaCheapest$461Average$937FlexibilityNo cancel feeOn-time77%

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