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$287+ Cheap flights from Illinois to Barcelona

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BCN
dic. 4 — dic. 111
jue. 12/4
jue. 12/11
1 adult, Economy
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Find flight deals from Illinois to Barcelona

Cheapest flights from Illinois to Barcelona
Explore the most affordable flight options available from Illinois to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 4, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/26:00 amSTL - BCN
1 stop19h 40mDelta
mar. 12/910:15 amBCN - STL
2 stops20h 14mDelta
Deal found 11/2$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.
lun. 11/1012:31 pmSTL - BCN
2 stops16h 29mLufthansa
mié. 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.
jue. 11/277:20 pmORD - BCN
1 stop16h 00mScandinavian Airlines
dom. 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.
dom. 11/93:35 pmORD - BCN
1 stop11h 00mAir Canada
mar. 11/255:50 amBCN - ORD
2 stops16h 05mAir Canada
Deal found 11/3$446
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.
mié. 11/1910:35 pmORD - BCN
1 stop12h 10mLufthansa
jue. 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.
mié. 11/267:20 pmORD - BCN
1 stop16h 00mScandinavian Airlines
dom. 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.
mié. 11/126:15 pmORD - BCN
2 stops15h 50mDelta
mié. 11/1910:15 amBCN - ORD
1 stop14h 38mDelta
Deal found 11/4$452
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.
mié. 11/121:47 pmMDW - BCN
2 stops14h 23mDelta
mié. 11/1910:55 amBCN - MDW
1 stop19h 45mDelta
Deal found 11/3$453
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/264:26 pmORD - BCN
2 stops17h 39mDelta
mar. 12/910:15 amBCN - ORD
1 stop18h 24mDelta
Deal found 11/2$453
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1710:00 amORD - BCN
2 stops16h 35mMultiple Airlines
jue. 11/271:45 pmBCN - ORD
1 stop13h 20mMultiple Airlines
Deal found 11/4$455
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/97:05 amORD - BCN
1 stop19h 30mUnited Airlines
mar. 11/181:35 pmBCN - ORD
2 stops29h 11mUnited Airlines
Deal found 11/4$456
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/95:40 pmORD - BCN
1 stop17h 30mIberia
mar. 11/2512:30 pmBCN - ORD
1 stop17h 26mIberia
Deal found 11/3$459

Cheap flight deals from Illinois to Barcelona

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

Round-trip from

$438
(Delta)

One-way from

$287
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$534
From Illinois to Barcelona
Search Deals
One-way flight from Illinois to Barcelona
Search Deals
Highest demand for flights based on searches. 29% 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 November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Barcelona 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 noviembre 4, 2025.
Use the filters below to find and compare flights from Illinois to Barcelona that are best for you.

Fly from

Illinois

Fly to

Barcelona

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

lun. 11/10

12:31 pm-12:00 pm

2 stops16h 29m

Barcelona-El Prat

mié. 11/26

6:50 am-1:55 pm

1 stop14h 05m

$439

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

dom. 2/1

6:00 am-8:00 am

2 stops19h 00m

Barcelona-El Prat

mar. 2/17

10:15 am-9:08 am

2 stops29h 53m

$449

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

mar. 11/18

1:25 pm-8:00 am

1 stop11h 35m

Barcelona-El Prat

mié. 12/3

9:55 am-3:10 pm

1 stop12h 15m

$451

ChicagoBarcelona

MDW - BCN

MDWBCN

Chicago Midway

lun. 12/1

1:47 pm-11:10 am

2 stops14h 23m

Barcelona-El Prat

mar. 12/16

10:55 am-11:47 pm

1 stop19h 52m

$453

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

mié. 11/26

4:26 pm-5:05 pm

2 stops17h 39m

Barcelona-El Prat

mar. 12/9

10:15 am-9:39 pm

1 stop18h 24m

$453

MolineBarcelona

MLI - BCN

MLIBCN

Moline Quad-City

lun. 12/1

10:50 am-1:10 pm

1 stop19h 20m

Barcelona-El Prat

lun. 12/8

1:35 pm-9:16 pm

2 stops38h 41m

$461

ChicagoBarcelona

MDW - BCN

MDWBCN

Chicago Midway

dom. 12/7

12:50 pm-8:40 am

1 stop12h 50m

Barcelona-El Prat

mar. 12/16

6:00 am-6:00 pm

2 stops19h 00m

$461

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

dom. 12/7

9:52 am-8:40 am

1 stop15h 48m

Barcelona-El Prat

mar. 12/16

6:00 am-5:46 pm

2 stops18h 46m

$462

MolineBarcelona

MLI - BCN

MLIBCN

Moline Quad-City

lun. 12/1

5:12 pm-8:00 am

2 stops31h 48m

Barcelona-El Prat

lun. 12/8

10:15 am-10:33 pm

2 stops19h 18m

$463

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

dom. 11/16

3:35 pm-9:35 am

1 stop11h 00m

Barcelona-El Prat

mar. 11/25

3:05 pm-6:10 pm

Nonstop10h 05m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 54 results
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Best time to book a flight from Illinois to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Barcelona (average of $360). Flying from Illinois to Barcelona in June is currently the most expensive (average of $888). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Barcelona in the evening. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight in the morning.

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

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

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

Weekly flight availability from Illinois to Barcelona

Explore weekly flight availability from Illinois to Barcelona. 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 noviembre 4, 2025.

The most flights from USIL to S37 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. 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?

    For as low as $439, Lufthansa can have you in Barcelona from Illinois in 16h 29m. There are 4638 mi between Illinois and Barcelona. 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 Barcelona one-way?

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $371. However, be on the lookout for offers from Air Canada and KLM, as they are both options that can get you from Illinois to Barcelona for a low price.

  • What are the most popular routes from Illinois to Barcelona?

    The most popular flight routes from Illinois to Barcelona 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?

    Before booking your flight to Barcelona from Illinois, check out the most reliable airlines to get you to your destination on time: American Airlines (79%), Alaska Airlines (79%), Finnair( 79%).

  • What are the cheapest flights from Illinois to Barcelona?

    On average you can expect to pay $3,041 for a flight from Illinois to Barcelona. The cheapest flight overall is $394 while the most popular route, (Chicago O'Hare Intl - Barcelona-El Prat) is currently priced at $354.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Barcelona 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?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Barcelona (average of $360). Flying from Illinois to Barcelona in June is currently the most expensive (average of $888). 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.

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Alternative routes for Illinois to Barcelona

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

Discover the top 10 airlines that operate flights from Illinois to Barcelona. 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 noviembre 4, 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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