How does KAYAK find such low prices on flights from Illinois to Barcelona?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Barcelona.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Barcelona?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Barcelona?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Barcelona with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Barcelona?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Barcelona from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$324 CHEAP FLIGHTS from Illinois to Barcelona (BCN)

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Cheap Flights from Illinois to Barcelona

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Barcelona

Wed, Feb 3 - Fri, Feb 12

6:30 am - 8:20 amSTL Lambert-St Louis-BCN Barcelona-El Prat

18h 50m1 stop Newark

1:35 pm - 4:40 pmBCN Barcelona-El Prat-STL Lambert-St Louis

34h 05m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$560United Airlines

Wed, Feb 3 - Fri, Feb 12

12:50 pm - 1:45 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

17h 55m2 stops Dallas/Fort Worth London Heathrow

12:00 pm - 10:58 pmBCN Barcelona-El Prat-STL Lambert-St Louis

17h 58m1 stop Philadelphia

$561Iberia

Wed, Feb 3 - Fri, Feb 12

7:30 am - 9:35 amSTL Lambert-St Louis-BCN Barcelona-El Prat

19h 05m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

1:35 pm - 3:02 pmBCN Barcelona-El Prat-STL Lambert-St Louis

32h 27m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$563Air Canada

Wed, Feb 3 - Fri, Feb 12

1:15 pm - 9:10 amSTL Lambert-St Louis-BCN Barcelona-El Prat

12h 55m1 stop Philadelphia

12:00 pm - 10:58 pmBCN Barcelona-El Prat-STL Lambert-St Louis

17h 58m1 stop Philadelphia

$563British Airways

Tue, Sep 22 - Wed, Sep 30

12:10 pm - 8:00 amSTL Lambert-St Louis-BCN Barcelona-El Prat

12h 50m1 stop Montreal Pierre Elliott Trudeau Intl

12:15 pm - 6:41 pmBCN Barcelona-El Prat-STL Lambert-St Louis

13h 26m1 stop Montreal Pierre Elliott Trudeau Intl

$567United Airlines

Tue, Sep 29 - Thu, Oct 8

12:10 pm - 8:00 amSTL Lambert-St Louis-BCN Barcelona-El Prat

12h 50m1 stop Montreal Pierre Elliott Trudeau Intl

1:15 pm - 2:00 pmBCN Barcelona-El Prat-STL Lambert-St Louis

31h 45m1 stop Toronto Pearson Intl

$572Air Canada

Wed, Feb 3 - Fri, Feb 12

1:40 pm - 12:45 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

16h 05m2 stops Chicago O'Hare Intl Madrid Barajas

12:00 pm - 10:58 pmBCN Barcelona-El Prat-STL Lambert-St Louis

17h 58m1 stop Philadelphia

$573Iberia

Mon, Sep 28 - Thu, Oct 8

12:00 pm - 12:50 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

17h 50m1 stop Atlanta Hartsfield-Jackson

11:00 am - 9:23 pmBCN Barcelona-El Prat-STL Lambert-St Louis

17h 23m1 stop Atlanta Hartsfield-Jackson

$575Delta

Mon, Sep 28 - Fri, Oct 9

10:05 am - 12:50 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

19h 45m1 stop Atlanta Hartsfield-Jackson

11:00 am - 11:54 pmBCN Barcelona-El Prat-STL Lambert-St Louis

19h 54m1 stop Atlanta Hartsfield-Jackson

$575Delta

Wed, Feb 3 - Fri, Feb 12

9:52 am - 1:45 pmSTL Lambert-St Louis-BCN Barcelona-El Prat

20h 53m2 stops Boston Logan Intl London Heathrow

12:00 pm - 10:58 pmBCN Barcelona-El Prat-STL Lambert-St Louis

17h 58m1 stop Philadelphia

$577British Airways

Recent last minute flight deals from Illinois to Barcelona

Tue, Sep 15 - Thu, Oct 1

6:40 am - 10:10 pmMDW Chicago Midway-BCN Barcelona-El Prat

32h 30m2 stops Boston Logan Intl Frankfurt am Main

8:00 am - 11:35 pmBCN Barcelona-El Prat-MDW Chicago Midway

22h 35m2 stops Frankfurt am Main Boston Logan Intl

$765Multiple Airlines

Thu, Sep 10 - Thu, Sep 24

6:00 pm - 4:55 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

15h 55m1 stop Lisbon Humberto Delgado

6:00 am - 12:40 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

13h 40m1 stop Lisbon Humberto Delgado

$771TAP AIR PORTUGAL

Sun, Sep 13 - Tue, Sep 15

6:00 pm - 1:30 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

24h 30m1 stop Lisbon Humberto Delgado

8:20 pm - 4:00 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

26h 40m1 stop Lisbon Humberto Delgado

$778TAP AIR PORTUGAL

Tue, Sep 15 - Thu, Oct 1

9:38 am - 10:10 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

29h 32m2 stops Boston Logan Intl Frankfurt am Main

8:00 am - 7:01 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

18h 01m2 stops Frankfurt am Main Boston Logan Intl

$791Multiple Airlines

Tue, Sep 15 - Thu, Oct 1

3:45 pm - 10:20 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

11h 35m1 stop Dublin

11:10 pm - 2:00 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

21h 50m1 stop Dublin

$793Aer Lingus

Mon, Sep 14 - Thu, Oct 1

7:05 pm - 2:05 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

12h 00m1 stop Zurich

9:40 am - 3:55 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

13h 15m1 stop Zurich

$865SWISS

Mon, Sep 14 - Wed, Sep 30

7:05 pm - 2:05 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

12h 00m1 stop Zurich

8:00 pm - 3:55 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

26h 55m1 stop Zurich

$880SWISS

Tue, Sep 15 - Sun, Sep 20

7:15 pm - 6:10 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

15h 55m1 stop Kastrup Copenhagen

7:00 pm - 4:10 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

28h 10m1 stop Kastrup Copenhagen

$880Scandinavian Airlines

Tue, Sep 15 - Thu, Sep 17

9:00 pm - 10:30 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

18h 30m1 stop Dublin

11:10 pm - 2:00 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

21h 50m1 stop Dublin

$951Aer Lingus

Tue, Sep 15 - Sun, Sep 20

7:15 pm - 6:10 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

15h 55m1 stop Kastrup Copenhagen

10:35 am - 4:10 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

36h 35m2 stops Stockholm Arlanda Kastrup Copenhagen

$968Scandinavian Airlines

Recent direct flight deals from Illinois to Barcelona

Mon, Oct 12 - Wed, Oct 28

7:15 pm - 10:55 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 40mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$660Finnair

Mon, Oct 12 - Wed, Oct 28

7:15 pm - 10:55 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 40mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$685Finnair

Mon, Oct 12 - Wed, Oct 28

7:15 pm - 10:55 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 40mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$708Iberia

Thu, Oct 22 - Mon, Oct 26

7:10 pm - 10:45 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 35mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$711British Airways

Mon, Oct 12 - Wed, Oct 28

7:15 pm - 10:55 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 40mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$712American Airlines

Sun, Oct 18 - Wed, Nov 25

9:40 pm - 1:15 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 35mnonstop

3:10 pm - 6:00 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$712United Airlines

Sun, Nov 1 - Tue, Nov 17

9:50 pm - 1:15 pmORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 25mnonstop

3:10 pm - 6:00 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$712United Airlines

Mon, Oct 12 - Wed, Oct 28

7:15 pm - 10:55 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 40mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$715American Airlines

Mon, Sep 28 - Wed, Oct 7

7:20 pm - 10:55 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 35mnonstop

12:20 pm - 3:10 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$753Iberia

Sun, Oct 25 - Thu, Oct 29

7:00 pm - 9:35 amORD Chicago O'Hare Intl-BCN Barcelona-El Prat

8h 35mnonstop

11:30 am - 3:20 pmBCN Barcelona-El Prat-ORD Chicago O'Hare Intl

9h 50mnonstop

$755British Airways

Useful Info

Low season	January
High season	May
Cheapest flight	$324

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 11% increase in price.

Flight from St. Louis to Barcelona

How does KAYAK find such low prices on flights from Illinois to Barcelona?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Barcelona.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Barcelona?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Barcelona from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Barcelona?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Barcelona with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Barcelona?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Barcelona from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

El Prat de Llobregat

L'Hospitalet de Llobregat

Castelldefels

Calella

Badalona

Cambrils

Santa Susanna

Roses

Malgrat de Mar

Pineda de Mar

l'Escala

Calella de Palafrugell

Palafrugell

Llafranc

Empuriabrava

La Pineda

Manresa

Pals

Tortosa

L'Hospitalet de l'Infant

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BCN

$324 Find Cheap Flights from Illinois to Barcelona - Compare and Save

Cheap Flights from Illinois to Barcelona

Recent round-trip flight deals from Illinois to Barcelona

Recent one-way flight deals from Illinois to Barcelona

Recent last minute flight deals from Illinois to Barcelona

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FAQs for booking Illinois to Barcelona flights

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