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$288+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BCN
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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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 July 1, 2025.

Round-trip from

$535
(Mytrip)

One-way from

$288
(Icelandair)

Popular in

June

Cheapest in

November

Average price

$1,008
From Illinois to Barcelona
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One-way flight from Illinois to Barcelona
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Highest demand for flights based on searches. 30% potential increase in price ($313 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 1, 2025.

This Mytrip deal was found by Cheapflights users on 6/30. 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.
Wed 8/131:30 pmSTL - BCN
2 stops24h 25mMultiple Airlines
Wed 8/207:40 pmBCN - STL
2 stops31h 20mMultiple Airlines
Deal found 6/30$535
This CheapOair deal was found by Cheapflights users on 6/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:30 pmSTL - BCN
1 stop11h 20mAir Canada
Fri 10/1712:10 pmBCN - STL
2 stops33h 17mAir Canada
Deal found 6/29$555
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/195:31 pmMLI - BCN
1 stop12h 44mUnited Airlines
Tue 9/912:10 pmBCN - MLI
2 stops33h 55mUnited Airlines
Deal found 6/28$560
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Wed 10/11:30 pmSTL - BCN
1 stop11h 20mUnited Airlines
Fri 10/1012:10 pmBCN - STL
1 stop14h 47mUnited Airlines
Deal found 6/30$568
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:00 amSTL - BCN
1 stop20h 05mAmerican Airlines
Fri 10/103:40 pmBCN - STL
1 stop15h 16mAmerican Airlines
Deal found 7/1$583
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 10/1810:48 amPIA - BCN
2 stops38h 02mUnited Airlines
Wed 10/293:05 pmBCN - PIA
1 stop29h 28mUnited Airlines
Deal found 6/30$588
This Iberia deal was found by Cheapflights users on 7/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/162:49 pmSTL - BCN
1 stop11h 11mIberia
Tue 11/259:15 amBCN - STL
2 stops17h 45mIberia
Deal found 7/1$593
This Delta deal was found by Cheapflights users on 6/30. 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.
Sun 8/107:01 pmORD - BCN
2 stops14h 24mDelta
Wed 8/206:10 amBCN - ORD
2 stops19h 14mDelta
Deal found 6/30$594
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:17 pmMDW - BCN
2 stops14h 08mDelta
Wed 8/206:10 amBCN - MDW
2 stops18h 27mDelta
Deal found 7/1$594
This Gurufare deal was found by Cheapflights users on 6/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:15 pmORD - BCN
1 stop11h 25mBritish Airways
Tue 9/1610:45 amBCN - ORD
Nonstop9h 45mBritish Airways
Deal found 6/30$595
This Lufthansa deal was found by Cheapflights users on 7/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:30 pmORD - BCN
2 stops16h 10mLufthansa
Tue 10/76:50 amBCN - ORD
2 stops18h 37mLufthansa
Deal found 7/1$596
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:31 pmORD - BCN
1 stop27h 49mUnited Airlines
Thu 8/281:15 pmBCN - ORD
2 stops36h 39mUnited Airlines
Deal found 7/1$597

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 July 1, 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

Wed 8/13

1:30 pm-8:55 pm

2 stops24h 25m

Barcelona-El Prat

Wed 8/20

7:40 pm-8:00 pm

2 stops31h 20m

$535

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 9/28

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Fri 10/17

12:10 pm-2:27 pm

2 stops33h 17m

$555

MolineBarcelona

MLI - BCN

MLIBCN

Moline Quad-City

Tue 8/19

5:31 pm-1:15 pm

1 stop12h 44m

Barcelona-El Prat

Tue 9/9

12:10 pm-3:05 pm

2 stops33h 55m

$560

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/1

1:30 pm-7:50 am

1 stop11h 20m

Barcelona-El Prat

Fri 10/10

12:10 pm-7:57 pm

1 stop14h 47m

$568

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 10/1

6:00 am-9:05 am

1 stop20h 05m

Barcelona-El Prat

Fri 10/10

3:40 pm-11:56 pm

1 stop15h 16m

$583

PeoriaBarcelona

PIA - BCN

PIABCN

Greater Peoria

Sat 10/18

10:48 am-7:50 am

2 stops38h 02m

Barcelona-El Prat

Wed 10/29

3:05 pm-2:33 pm

1 stop29h 28m

$588

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/16

2:49 pm-9:00 am

1 stop11h 11m

Barcelona-El Prat

Tue 11/25

9:15 am-8:00 pm

2 stops17h 45m

$593

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Sun 8/10

7:01 pm-4:25 pm

2 stops14h 24m

Barcelona-El Prat

Wed 8/20

6:10 am-6:24 pm

2 stops19h 14m

$594

ChicagoBarcelona

MDW - BCN

MDWBCN

Chicago Midway

Wed 8/13

7:17 pm-4:25 pm

2 stops14h 08m

Barcelona-El Prat

Wed 8/20

6:10 am-5:37 pm

2 stops18h 27m

$594

ChicagoBarcelona

ORD - BCN

ORDBCN

Chicago O'Hare Intl

Fri 9/5

7:15 pm-1:40 pm

1 stop11h 25m

Barcelona-El Prat

Tue 9/16

10:45 am-1:30 pm

Nonstop9h 45m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 47 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, January is the cheapest month in which you can book a flight from Illinois to Barcelona (average of $523). Flying from Illinois to Barcelona in June is currently the most expensive (average of $1,059). 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 July 1, 2025.

When flying from Illinois to Barcelona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 1, 2025.

The most flights from USIL to S37 are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated July 1, 2025.
Read through reviews of airlines operating flights from Illinois to Barcelona, such as Delta, KLM, and Air France. 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
7,974 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
7,974 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
1,366 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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!
Air France
7.5
Good
1,472 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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!
United Airlines
7.4
Good
8,858 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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 Illinois to Barcelona. 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 Illinois to Barcelona one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $288. However, be on the lookout for offers from TAP AIR PORTUGAL and Virgin Atlantic, 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 $2,070 for a flight from Illinois to Barcelona. The cheapest flight overall is $402 while the most popular route, (Chicago O'Hare Intl - Barcelona-El Prat) is currently priced at $358.

  • 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, January is the cheapest month in which you can book a flight from Illinois to Barcelona (average of $523). Flying from Illinois to Barcelona in June is currently the most expensive (average of $1,059). 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

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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.
Newark to Barcelona-El Prat flights
John F Kennedy Intl to Barcelona-El Prat flights
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Jacksonville to Barcelona-El Prat flights

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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$342Average$472FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$349Average$424FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$401Average$785FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$424Average$595FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$477Average$739FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$477Average$643FlexibilityNo cancel feeOn-time70%
KLMCheapest$478Average$687FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$481Average$693FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$484Average$823FlexibilityNo cancel feeOn-time69%
IberiaCheapest$496Average$809FlexibilityNo cancel feeOn-time77%

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