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$186+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MAD
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This Justfly.com deal was found by Cheapflights users on 12/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:50 amSTL - BCN
1 stop14h 10mMultiple Airlines
Thu 12/251:35 pmBCN - STL
2 stops31h 51mMultiple Airlines
Deal found 12/2$411
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:30 amSTL - BCN
1 stop16h 50mUnited Airlines
Thu 12/251:35 pmBCN - STL
2 stops36h 43mUnited Airlines
Deal found 12/2$414
This FlightHub deal was found by Cheapflights users on 12/2. 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.
Tue 12/911:50 amSTL - BCN
1 stop14h 10mLufthansa
Thu 12/2511:00 amBCN - STL
1 stop19h 43mLufthansa
Deal found 12/2$430
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amSTL - BCN
1 stop19h 40mDelta
Thu 12/2510:55 amBCN - STL
1 stop19h 43mDelta
Deal found 12/2$434
This oojo deal was found by Cheapflights users on 12/1. 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 12/319:45 pmORD - AGP
1 stop30h 10mBritish Airways
Tue 1/135:50 pmAGP - ORD
1 stop31h 55mBritish Airways
Deal found 12/1$451
This oojo deal was found by Cheapflights users on 12/2. 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.
Fri 12/58:15 pmORD - AGP
1 stop30h 20mTAP AIR PORTUGAL
Sat 12/133:00 pmAGP - ORD
1 stop30h 45mTAP AIR PORTUGAL
Deal found 12/2$457
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:40 amSTL - BCN
1 stop14h 00mDelta
Thu 12/256:00 amBCN - STL
2 stops18h 00mDelta
Deal found 12/2$461
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:55 pmSTL - BCN
1 stop12h 25mUnited Airlines
Thu 12/251:35 pmBCN - STL
2 stops36h 43mUnited Airlines
Deal found 12/2$464
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:29 pmORD - MAD
2 stops27h 31mUnited Airlines
Tue 1/136:00 amMAD - ORD
2 stops19h 37mUnited Airlines
Deal found 12/3$471
This KLM deal was found by Cheapflights users on 12/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:20 pmORD - AGP
1 stop12h 00mMultiple Airlines
Tue 1/138:25 pmAGP - ORD
1 stop24h 55mMultiple Airlines
Deal found 12/2$471
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 pmORD - AGP
1 stop12h 55mAmerican Airlines
Tue 1/135:50 pmAGP - ORD
1 stop27h 00mAmerican Airlines
Deal found 12/2$472
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:40 pmORD - MAD
Nonstop8h 10mIberia
Tue 12/1612:10 pmMAD - ORD
1 stop14h 13mIberia
Deal found 12/2$473

Find flight deals from Illinois to Spain

Keep the following information in mind while searching for Illinois to Spain flight deals. Data was last updated December 4, 2025.

Round-trip from

$377
(oojo)

One-way from

$186
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$768

Good round-trip deal

$578 or less

Good one-way deal

$478 or less
From Illinois to Spain
Search Deals
One-way flight from Illinois to Spain
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($294 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Spain.
Search Deals
Price to beat on a one-way flight from Illinois to Spain.
Search Deals

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 December 4, 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

ChicagoMálaga

ORD - AGP

ORDAGP

Chicago O'Hare Intl

Thu 1/22

10:29 am-9:55 am

2 stops40h 26m

Malaga

Wed 2/4

6:30 pm-4:45 pm

1 stop29h 15m

$404

ChicagoMálaga

ORD - AGP

ORDAGP

Chicago O'Hare Intl

Wed 1/21

6:25 pm-9:55 am

2 stops56h 30m

Malaga

Sat 1/31

8:10 pm-4:55 pm

1 stop27h 45m

$415

ChicagoMálaga

ORD - AGP

ORDAGP

Chicago O'Hare Intl

Wed 1/21

6:59 pm-9:55 am

2 stops55h 56m

Malaga

Thu 1/29

6:30 pm-4:45 pm

1 stop29h 15m

$415

ChicagoMálaga

ORD - AGP

ORDAGP

Chicago O'Hare Intl

Thu 1/29

10:29 am-9:55 am

2 stops40h 26m

Malaga

Thu 2/5

11:25 am-4:45 pm

2 stops36h 20m

$416

ChicagoGranadilla

ORD - TFS

ORDTFS

Chicago O'Hare Intl

Thu 1/1

6:30 pm-3:25 pm

1 stop14h 55m

Granadilla Tenerife-Sur

Wed 1/14

4:25 pm-5:20 pm

1 stop30h 55m

$424

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 3/4

6:30 am-8:00 am

1 stop18h 30m

Barcelona-El Prat

Tue 3/10

9:15 am-8:44 am

1 stop29h 29m

$425

ChicagoGranadilla

ORD - TFS

ORDTFS

Chicago O'Hare Intl

Wed 1/14

6:30 pm-3:25 pm

1 stop14h 55m

Granadilla Tenerife-Sur

Fri 1/23

4:25 pm-5:20 pm

1 stop30h 55m

$431

ChicagoGranadilla

ORD - TFS

ORDTFS

Chicago O'Hare Intl

Tue 1/20

6:30 pm-3:25 pm

1 stop14h 55m

Granadilla Tenerife-Sur

Tue 1/27

4:25 pm-5:20 pm

1 stop30h 55m

$431

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 2/1

11:55 am-8:50 am

1 stop13h 55m

Barcelona-El Prat

Tue 2/17

11:00 am-10:05 pm

1 stop18h 05m

$434

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 12/9

6:00 am-8:40 am

1 stop19h 40m

Barcelona-El Prat

Thu 12/25

10:55 am-11:38 pm

1 stop19h 43m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

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 $290). 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 December 4, 2025.

It’s optimal to fly from Illinois to Spain in the evening. By choosing this option you can save up to 17% 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. Friday at noon 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 December 4, 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?

    Scandinavian Airlines, Icelandair, and Delta can get you from Illinois to Spain in just under 14h 55m. Your travel time can differ by up to 25h 31m. Illinois and Spain are separated by a distance of 4030 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 ($170), Scandinavian Airlines ($214), and Icelandair ($225).

  • 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 $290). 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$120Average$203FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$288Average$712FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$354Average$721FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$366Average$499FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$366Average$639FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$373Average$547FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$401Average$665FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$434Average$856FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$435Average$788FlexibilityNo cancel feeOn-time70%
IberiaCheapest$460Average$925FlexibilityNo cancel feeOn-time77%

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