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$327+ Cheap flights from Spain to Illinois

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Spain to Illinois

Keep the following information in mind while searching for Spain to Illinois flight deals. Data was last updated junio 12, 2025.

Round-trip from

$428
(Expedia)

One-way from

$327
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$683

Good round-trip deal

$704 or less

Good one-way deal

$618 or less
From Spain to Illinois
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One-way flight from Spain to Illinois
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Highest demand for flights based on searches. 19% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Spain to Illinois.
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Price to beat on a one-way flight from Spain to Illinois.
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Find flight deals from Spain to Illinois

Cheapest flights from Spain to Illinois
Explore the most affordable flight options available from Spain to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Expedia deal was found by Cheapflights users on 6/10. 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. 10/229:15 amBIO - ORD
1 stop12h 00mIberia
jue. 10/305:45 pmORD - BIO
1 stop13h 05mIberia
Deal found 6/10$428
This American Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 10/229:15 amBIO - ORD
1 stop12h 00mAmerican Airlines
jue. 10/3011:45 amORD - BIO
2 stops14h 45mAmerican Airlines
Deal found 6/10$456
This Iberia deal was found by Cheapflights users on 6/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:45 amAGP - ORD
1 stop13h 45mIberia
dom. 9/1410:35 pmORD - AGP
1 stop15h 25mIberia
Deal found 6/12$459
This Expedia deal was found by Cheapflights users on 6/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/117:15 amAGP - ORD
2 stops14h 00mMultiple Airlines
dom. 9/1410:35 pmORD - AGP
1 stop14h 20mMultiple Airlines
Deal found 6/12$480
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/46:45 amBIO - ORD
1 stop20h 10mUnited Airlines
mar. 9/163:45 pmORD - BIO
1 stop12h 00mUnited Airlines
Deal found 6/12$507
This Bravofly deal was found by Cheapflights users on 6/12. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/1012:40 pmAGP - ORD
1 stop13h 20mAer Lingus
mié. 7/233:45 pmORD - AGP
1 stop12h 45mAer Lingus
Deal found 6/12$523
This Air Canada deal was found by Cheapflights users on 6/12. 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.
jue. 9/256:45 amBIO - ORD
2 stops19h 44mAir Canada
lun. 9/299:55 amORD - BIO
2 stops25h 50mAir Canada
Deal found 6/12$524
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/12. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/296:35 amAGP - ORD
1 stop16h 35mTAP AIR PORTUGAL
sáb. 9/136:15 pmORD - AGP
1 stop21h 40mTAP AIR PORTUGAL
Deal found 6/12$525
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:35 amAGP - ORD
2 stops15h 41mUnited Airlines
dom. 9/149:00 amORD - AGP
2 stops15h 35mUnited Airlines
Deal found 6/12$538
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/246:50 pmALC - ORD
2 stops52h 55mScandinavian Airlines
dom. 11/307:20 pmORD - ALC
2 stops15h 40mScandinavian Airlines
Deal found 6/10$565
This American Airlines deal was found by Cheapflights users on 6/10. 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.
vie. 8/291:25 pmAGP - ORD
2 stops17h 34mAmerican Airlines
sáb. 9/1311:46 amORD - AGP
2 stops13h 44mAmerican Airlines
Deal found 6/10$590
This Delta deal was found by Cheapflights users on 6/10. 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.
mié. 10/226:50 amBIO - MDW
2 stops18h 17mDelta
jue. 10/305:59 pmMDW - BIO
2 stops17h 21mDelta
Deal found 6/10$593

Cheapflights Fare Finder

Customize your flight search to find flights from Spain to Illinois 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 junio 12, 2025.
Use the filters below to find and compare flights from Spain to Illinois that are best for you.

Fly from

Spain

Fly to

Illinois

Route

Depart

Return

Price

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mié. 10/22

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

jue. 10/30

5:45 pm-12:50 pm

1 stop13h 05m

$428

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mié. 10/22

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

jue. 10/30

11:45 am-8:30 am

2 stops14h 45m

$456

MálagaChicago

AGP - ORD

AGPORD

Malaga

jue. 9/11

6:45 am-1:30 pm

1 stop13h 45m

Chicago O'Hare Intl

dom. 9/14

10:35 pm-9:00 pm

1 stop15h 25m

$459

MálagaChicago

AGP - ORD

AGPORD

Malaga

jue. 9/11

7:15 am-2:15 pm

2 stops14h 00m

Chicago O'Hare Intl

dom. 9/14

10:35 pm-7:55 pm

1 stop14h 20m

$480

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

jue. 9/4

6:45 am-7:55 pm

1 stop20h 10m

Chicago O'Hare Intl

mar. 9/16

3:45 pm-10:45 am

1 stop12h 00m

$507

MálagaChicago

AGP - ORD

AGPORD

Malaga

jue. 7/10

12:40 pm-7:00 pm

1 stop13h 20m

Chicago O'Hare Intl

mié. 7/23

3:45 pm-11:30 am

1 stop12h 45m

$523

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

jue. 9/25

6:45 am-7:29 pm

2 stops19h 44m

Chicago O'Hare Intl

lun. 9/29

9:55 am-6:45 pm

2 stops25h 50m

$524

MálagaChicago

AGP - ORD

AGPORD

Malaga

vie. 8/29

6:35 am-4:10 pm

1 stop16h 35m

Chicago O'Hare Intl

sáb. 9/13

6:15 pm-10:55 pm

1 stop21h 40m

$525

MálagaChicago

AGP - ORD

AGPORD

Malaga

jue. 9/11

9:35 am-6:16 pm

2 stops15h 41m

Chicago O'Hare Intl

dom. 9/14

9:00 am-7:35 am

2 stops15h 35m

$538

AlicanteChicago

ALC - ORD

ALCORD

Alicante

lun. 11/24

6:50 pm-4:45 pm

2 stops52h 55m

Chicago O'Hare Intl

dom. 11/30

7:20 pm-6:00 pm

2 stops15h 40m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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

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

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

Currently, August is the cheapest month in which you can book a flight from Spain to Illinois (average of $245). Flying from Spain to Illinois in March is currently the most expensive (average of $321). 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 ES to IL?

Find hourly flight availability from Spain to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

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

Weekly flight availability from Spain to Illinois

Explore weekly flight availability from Spain to Illinois. 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 junio 12, 2025.

The most flights from ES0 to USIL are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated junio 12, 2025.
Read reviews from past customers who have flown Delta, KLM and LOT from Spain to Illinois. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,077 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Spain to Illinois. 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 Spain to Illinois one-way?

    To fly one-way, consider booking your trip with Air Serbia, which is currently one of the cheapest options available, starting at $363. Icelandair flights start at $410 while deals on TAP AIR PORTUGAL start at $420 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Spain to Illinois (average of $245). Flying from Spain to Illinois in March is currently the most expensive (average of $321). 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 Spain to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Spain to Illinois

Discover the top 8 airlines that operate flights from Spain to Illinois. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$305Average$610FlexibilityNo cancel feeOn-time77%
DeltaCheapest$353Average$637FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$372Average$676FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$393Average$673FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$438Average$790FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$441Average$735FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$480Average$704FlexibilityNo cancel feeOn-time70%
SWISSCheapest$616Average$879FlexibilityNo cancel feeOn-time79%

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