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

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 Lisbon.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon 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 Lisbon?

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 Lisbon 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 Lisbon?

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 Lisbon from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$315 CHEAP FLIGHTS from Illinois to Lisbon

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Cheap Flights from Illinois to Lisbon

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 Lisbon

Wed, Nov 25 - Thu, Dec 3

5:29 pm - 5:45 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

18h 16m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 6:17 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 47m2 stops Madrid Barajas Chicago O'Hare Intl

$575Multiple Airlines

Wed, Nov 25 - Thu, Dec 3

6:02 am - 9:05 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

21h 03m1 stop Philadelphia

8:20 am - 6:17 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

15h 57m2 stops Madrid Barajas Chicago O'Hare Intl

$589American Airlines

Tue, Nov 3 - Wed, Nov 11

6:02 am - 9:05 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

21h 03m1 stop Philadelphia

8:20 am - 7:22 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 02m2 stops Madrid Barajas Chicago O'Hare Intl

$589American Airlines

Tue, Nov 3 - Wed, Nov 11

6:00 am - 8:10 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

20h 10m1 stop Newark

10:15 am - 9:52 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

17h 37m1 stop Newark

$596United Airlines

Tue, Nov 3 - Wed, Nov 11

1:15 pm - 9:05 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

13h 50m1 stop Philadelphia

11:05 am - 8:26 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

15h 21m1 stop Philadelphia

$601British Airways

Tue, Nov 3 - Mon, Nov 9

9:50 am - 9:50 pmSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

30h 00m2 stops Boston Logan Intl London Heathrow

6:35 pm - 4:43 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

28h 08m2 stops London Heathrow Chicago O'Hare Intl

$608British Airways

Tue, Dec 1 - Thu, Dec 10

6:11 am - 11:25 amBMI Bloomington-Normal-LIS Lisbon Humberto Delgado

23h 14m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

10:00 am - 10:26 pmLIS Lisbon Humberto Delgado-BMI Bloomington-Normal

18h 26m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$618Delta

Mon, Oct 19 - Wed, Nov 4

12:10 pm - 9:20 amSTL Lambert-St Louis-LIS Lisbon Humberto Delgado

15h 10m1 stop Montreal Pierre Elliott Trudeau Intl

5:00 am - 1:45 pmLIS Lisbon Humberto Delgado-STL Lambert-St Louis

14h 45m1 stop Frankfurt am Main

$687Multiple Airlines

Tue, Dec 1 - Thu, Dec 10

5:30 pm - 6:55 amPIA Greater Peoria-LIS Lisbon Humberto Delgado

31h 25m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

10:55 am - 1:41 pmLIS Lisbon Humberto Delgado-PIA Greater Peoria

32h 46m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$715United Airlines

Tue, Jan 19 - Tue, Jan 26

5:45 pm - 5:30 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

17h 45m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:30 am - 2:25 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

32h 55m1 stop Amsterdam Schiphol

$735Delta

Recent last minute flight deals from Illinois to Lisbon

Sat, Sep 12 - Thu, Oct 22

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

$855TAP AIR PORTUGAL

Fri, Sep 11 - Thu, Sep 17

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

9:15 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

$858TAP AIR PORTUGAL

Fri, Sep 11 - Thu, Sep 17

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

9:15 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

$888JetBlue

Mon, Sep 14 - Mon, Sep 21

7:25 am - 10:40 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

21h 15m3 stops Toronto Island Montreal Pierre Elliott Trudeau Intl Toulouse Blagnac

7:35 am - 8:12 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

18h 37m2 stops Madrid Barajas Montreal Pierre Elliott Trudeau Intl

$969Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

11:05 am - 10:40 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

17h 35m2 stops Montreal Pierre Elliott Trudeau Intl Toulouse Blagnac

7:35 am - 8:12 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

18h 37m2 stops Madrid Barajas Montreal Pierre Elliott Trudeau Intl

$970Multiple Airlines

Fri, Sep 11 - Fri, Sep 18

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

$980JetBlue

Sat, Sep 12 - Thu, Oct 22

9:00 pm - 9:35 pmORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

18h 35m1 stop Dublin

11:25 am - 7:15 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

13h 50m1 stop Dublin

$996Aer Lingus

Tue, Sep 15 - Tue, Sep 22

5:10 pm - 11:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

12h 05m1 stop Paris Charles de Gaulle

10:00 am - 9:37 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

17h 37m1 stop New York John F Kennedy Intl

$1,066Delta

Tue, Sep 15 - Tue, Sep 22

12:29 pm - 11:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

16h 46m2 stops Minneapolis St Paul Paris Charles de Gaulle

10:00 am - 9:37 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

17h 37m1 stop New York John F Kennedy Intl

$1,071Delta

Sun, Sep 13 - Wed, Sep 30

3:45 pm - 10:45 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

13h 00m1 stop Dublin

10:15 pm - 2:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

21h 45m1 stop Dublin

$1,085Aer Lingus

Recent direct flight deals from Illinois to Lisbon

Sun, Nov 1 - Fri, Feb 5

8:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$760JetBlue

Sat, Oct 3 - Thu, Oct 15

6:05 pm - 8:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

9:20 am - 12:40 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 20mnonstop

$764TAP AIR PORTUGAL

Fri, Feb 26 - Wed, Mar 3

8:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$765TAP AIR PORTUGAL

Fri, Oct 30 - Wed, Nov 4

9:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$766TAP AIR PORTUGAL

Fri, Oct 30 - Sun, Feb 7

9:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$800JetBlue

Wed, Oct 21 - Wed, Oct 28

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

11:55 am - 4:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$824JetBlue

Thu, Oct 1 - Fri, Oct 9

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

12:35 pm - 4:00 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 25mnonstop

$932JetBlue

Wed, Oct 7 - Wed, Dec 9

6:00 pm - 8:10 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 10mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$1,221Multiple Airlines

Wed, Dec 2 - Sun, Dec 6

7:00 pm - 9:05 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$1,221Multiple Airlines

Sun, Nov 22 - Fri, Nov 27

8:10 pm - 10:15 amORD Chicago O'Hare Intl-LIS Lisbon Humberto Delgado

8h 05mnonstop

11:55 am - 3:30 pmLIS Lisbon Humberto Delgado-ORD Chicago O'Hare Intl

9h 35mnonstop

$1,221Multiple Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$315

Best time to beat the crowds with an average 33% drop in price.

Most popular time to fly with an average 27% increase in price.

Flight from Chicago O'Hare Airport to Lisbon

How does KAYAK find such low prices on flights from Illinois to Lisbon?
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 Lisbon.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Lisbon?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon 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 Lisbon?
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 Lisbon 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 Lisbon?
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 Lisbon from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Setúbal

Óbidos

Tomar

Costa da Caparica

Almada

Sines

Caldas da Rainha

Torres Vedras

Colares

Zambujeira do Mar

Beja

Madeira

Batalha

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Complete your trip to Lisbon with a hotel stay or car rental

Car rentals in Lisbon

LIS

$315 Find Cheap Flights from Illinois to Lisbon - Compare and Save

Cheap Flights from Illinois to Lisbon

Recent round-trip flight deals from Illinois to Lisbon

Recent one-way flight deals from Illinois to Lisbon

Recent last minute flight deals from Illinois to Lisbon

Recent direct flight deals from Illinois to Lisbon

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High season

Cheapest flight

FAQs for booking flights from Illinois to Lisbon

Traveling to a place near Lisbon?

More options for your flight to Lisbon

Complete your trip to Lisbon with a hotel stay or car rental

Information on the airport you'll fly into in Lisbon

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