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Barcelona-El Prat

$299+ Cheap flights from Illinois to Barcelona-El Prat (BCN)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BCN
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Cheap flight deals from Illinois to Barcelona-El Prat

Keep the following information in mind while searching for Illinois to Barcelona-El Prat flight deals. Data was last updated November 18, 2025.

Round-trip from

$426
(KLM)

One-way from

$299
(British Airways)

Popular in

June

Cheapest in

February

Average price

$567

Good round-trip deal

$557 or less

Good one-way deal

$394 or less
From Illinois to Barcelona-El Prat
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One-way flight from Illinois to Barcelona-El Prat
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Highest demand for flights based on searches. 29% potential increase in price ($296 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 Barcelona-El Prat.
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Price to beat on a one-way flight from Illinois to Barcelona-El Prat.
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Find flight deals from Illinois to Barcelona-El Prat

Cheapest flights from Illinois to Barcelona-El Prat
Explore the most affordable flight options available from Illinois to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:05 amSTL - BCN
1 stop18h 35mDelta
Fri 1/3010:55 amBCN - STL
1 stop19h 42mDelta
Deal found 11/16$434
This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:39 amSTL - BCN
2 stops18h 21mDelta
Fri 1/3010:55 amBCN - STL
1 stop19h 42mDelta
Deal found 11/16$438
This Mytrip deal was found by Cheapflights users on 11/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:05 amORD - BCN
1 stop19h 30mAir Canada
Tue 12/25:50 amBCN - ORD
2 stops16h 05mAir Canada
Deal found 11/16$441
This KLM deal was found by Cheapflights users on 11/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:20 pmORD - BCN
1 stop13h 40mMultiple Airlines
Thu 12/410:55 amBCN - ORD
1 stop14h 48mMultiple Airlines
Deal found 11/16$448
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:50 pmORD - BCN
1 stop18h 15mMultiple Airlines
Tue 12/28:30 pmBCN - ORD
1 stop24h 30mMultiple Airlines
Deal found 11/16$453
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/244:20 pmORD - BCN
1 stop33h 50mAustrian Airlines
Tue 12/28:30 pmBCN - ORD
1 stop24h 30mAustrian Airlines
Deal found 11/16$456
This Mytrip deal was found by Cheapflights users on 11/17. 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.
Tue 12/26:30 pmORD - BCN
2 stops20h 00mMultiple Airlines
Tue 12/95:45 amBCN - ORD
2 stops18h 35mMultiple Airlines
Deal found 11/17$458
This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:35 amORD - BCN
1 stop14h 25mDelta
Tue 12/212:15 pmBCN - ORD
1 stop33h 55mDelta
Deal found 11/16$460
This Delta deal was found by Cheapflights users on 11/17. 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 12/310:49 amMDW - BCN
1 stop14h 51mDelta
Wed 12/1012:15 pmBCN - MDW
2 stops18h 32mDelta
Deal found 11/17$461
This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:00 amSTL - BCN
1 stop19h 40mDelta
Wed 2/46:00 amBCN - STL
2 stops21h 43mDelta
Deal found 11/16$461
This Delta deal was found by Cheapflights users on 11/18. 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 11/194:25 pmORD - BCN
1 stop11h 00mDelta
Tue 11/2510:55 amBCN - ORD
1 stop14h 57mDelta
Deal found 11/18$461
This Delta deal was found by Cheapflights users on 11/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:07 pmSTL - BCN
1 stop11h 33mDelta
Fri 1/3011:10 amBCN - STL
2 stops16h 33mDelta
Deal found 11/16$462

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Barcelona-El Prat 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 18, 2025.
Use the filters below to find and compare flights from Illinois to Barcelona-El Prat Airport that are best for you.

Fly from

Illinois

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 12/1

7:05 am-8:40 am

1 stop18h 35m

Barcelona-El Prat

Fri 1/30

10:55 am-11:37 pm

1 stop19h 42m

$434

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 12/2

11:40 am-8:40 am

1 stop14h 00m

Barcelona-El Prat

Fri 1/30

10:55 am-8:37 pm

1 stop16h 42m

$434

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 12/3

7:05 am-8:40 am

1 stop18h 35m

Barcelona-El Prat

Thu 1/29

10:15 am-11:37 pm

2 stops20h 22m

$438

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Tue 12/2

5:12 pm-8:40 am

1 stop32h 28m

Barcelona-El Prat

Thu 1/29

10:15 am-8:43 pm

2 stops17h 28m

$438

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Tue 2/10

7:10 am-8:50 am

2 stops18h 40m

Barcelona-El Prat

Wed 2/18

10:55 am-7:21 pm

1 stop15h 26m

$453

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Tue 1/13

9:55 am-8:40 am

1 stop15h 45m

Barcelona-El Prat

Wed 1/21

6:00 am-10:34 pm

2 stops23h 34m

$461

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Wed 11/26

1:25 pm-8:00 am

1 stop11h 35m

Barcelona-El Prat

Thu 12/4

12:15 pm-12:01 am

2 stops18h 46m

$461

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 12/1

7:05 am-8:40 am

1 stop18h 35m

Barcelona-El Prat

Wed 2/4

6:00 am-8:43 pm

2 stops21h 43m

$461

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Wed 1/14

11:00 am-11:10 am

2 stops17h 10m

Barcelona-El Prat

Tue 1/20

6:00 am-3:10 pm

1 stop16h 10m

$470

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Fri 2/6

6:57 pm-7:05 pm

2 stops17h 08m

Barcelona-El Prat

Tue 2/10

10:15 am-8:43 pm

2 stops17h 28m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 53 results
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Best time to book a flight from Illinois to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat 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 Barcelona-El Prat Airport

What is the cheapest month to book a flight from Illinois to Barcelona-El Prat Airport?

Currently, August is the cheapest month in which you can book a flight from Illinois to Barcelona-El Prat Airport (average of $369). Flying from Illinois to Barcelona-El Prat Airport in June is currently the most expensive (average of $887). 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 BCN?

Find hourly flight availability from Illinois to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Barcelona-El Prat Airport in the evening. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Illinois to Barcelona-El Prat Airport?

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

Travelers seeking maximum savings on their Illinois to Barcelona-El Prat Airport flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Barcelona-El Prat Airport

Explore weekly flight availability from Illinois to Barcelona-El Prat. 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 18, 2025.

The most flights from USIL to BCN are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Barcelona-El Prat. 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 Barcelona-El Prat Airport?

    There are many flights that can get you from Illinois to Barcelona-El Prat Airport in 14h 35m. Fly via Delta, Virgin Atlantic, or United Airlines to get the fastest option. There are 4533 mi between Illinois and Barcelona-El Prat Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Barcelona-El Prat Airport one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $299. KLM flights start at $302 while deals on TAP AIR PORTUGAL start at $356 one-way.

  • What are the most popular routes from Illinois to Barcelona-El Prat Airport?

    The most popular flight routes from Illinois to Barcelona-El Prat Airport are Chicago O'Hare Intl - Barcelona-El Prat, Chicago Midway - Barcelona-El Prat and Lambert-St Louis - Barcelona-El Prat.

  • What are the most reliable airlines from Illinois to Barcelona-El Prat Airport?

    No one likes to see their flight delayed. When booking a flight from Illinois to Barcelona-El Prat Airport consider choosing American Airlines (77%), Alaska Airlines (77%) or Finnair (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Barcelona-El Prat Airport?

    While on average a flight from Illinois to Barcelona-El Prat Airport is generally $3,041, our data shows the cheapest flight currently is $394. When looking at the most popular route, (Chicago O'Hare Intl - Barcelona-El Prat), you can expect to pay $354 for that flight.

  • Can I find deals for flights from Illinois to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Illinois to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Barcelona-El Prat?

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

  • Can I find deals for business class flights from Illinois to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Illinois to Barcelona-El Prat 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 Barcelona-El Prat Airport?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Barcelona-El Prat Airport (average of $369). Flying from Illinois to Barcelona-El Prat Airport in June is currently the most expensive (average of $887). 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

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Calella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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Alternative routes for Illinois to Barcelona-El Prat

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 Barcelona-El Prat

Discover the top 10 airlines that operate flights from Illinois to Barcelona-El Prat. 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 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$366Average$478FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$369Average$540FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$401Average$584FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$406Average$594FlexibilityNo cancel feeOn-time77%
KLMCheapest$479Average$782FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$483Average$701FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$485Average$680FlexibilityNo cancel feeOn-time70%
IberiaCheapest$486Average$822FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$490Average$714FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$500Average$816FlexibilityNo cancel feeOn-time69%

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