Find Cheap Flights from Portugal to Chicago

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Portugal to Chicago

(Round-trip)
Depart: Wed May 2 2018 Return: Thu May 31 2018 Trip spans 30 days
Multiple Airlines
Multiple Airlines
LIS
ORD
15h 50m
1 stop
ORD
LIS
15h 10m
1 stop
Depart: Fri Mar 23 2018 Return: Fri Apr 6 2018 Trip spans 15 days
Aer Lingus
Aer Lingus
LIS
ORD
24h 40m
1 stop
ORD
LIS
31h 50m
1 stop
Depart: Mon Apr 30 2018 Return: Sun Jun 3 2018 Trip spans 35 days
Turkish Airlines
Turkish Airlines
LIS
ORD
36h 05m
1 stop
ORD
LIS
35h 10m
1 stop
Depart: Wed Dec 13 2017 Return: Wed Dec 27 2017 Trip spans 15 days
Finnair
Finnair
LIS
ORD
13h 20m
1 stop
ORD
LIS
24h 55m
1 stop
Depart: Sun Apr 29 2018 Return: Thu May 31 2018 Trip spans 33 days
KLM
KLM
LIS
ORD
28h 40m
1 stop
ORD
LIS
16h 20m
1 stop
Depart: Sat Dec 30 2017 Return: Sun Dec 31 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
LIS
ORD
12h 30m
1 stop
ORD
LIS
15h 50m
2 stops
Depart: Tue May 1 2018 Return: Wed May 30 2018 Trip spans 30 days
Multiple Airlines
Multiple Airlines
LIS
ORD
32h 05m
2 stops
ORD
LIS
25h 11m
2 stops
Depart: Wed May 2 2018 Return: Sun Jun 3 2018 Trip spans 33 days
Turkish Airlines
Turkish Airlines
LIS
ORD
36h 05m
1 stop
ORD
LIS
35h 10m
1 stop
Depart: Fri May 4 2018 Return: Wed May 30 2018 Trip spans 27 days
Multiple Airlines
Multiple Airlines
LIS
ORD
22h 00m
1 stop
ORD
LIS
25h 11m
2 stops
Depart: Mon Apr 30 2018 Return: Mon May 28 2018 Trip spans 29 days
Finnair
Finnair
LIS
ORD
18h 14m
2 stops
ORD
LIS
21h 50m
1 stop
Depart: Fri May 4 2018 Return: Sun Jun 3 2018 Trip spans 31 days
Turkish Airlines
Turkish Airlines
LIS
ORD
36h 05m
1 stop
ORD
LIS
35h 10m
1 stop
Depart: Sat May 5 2018 Return: Wed May 30 2018 Trip spans 26 days
Multiple Airlines
Multiple Airlines
LIS
ORD
22h 00m
1 stop
ORD
LIS
25h 11m
2 stops
Depart: Mon Apr 30 2018 Return: Fri Jun 1 2018 Trip spans 33 days
Finnair
Finnair
LIS
ORD
18h 14m
2 stops
ORD
LIS
24h 05m
1 stop
Depart: Sat May 5 2018 Return: Sun Jun 3 2018 Trip spans 30 days
Turkish Airlines
Turkish Airlines
LIS
ORD
36h 05m
1 stop
ORD
LIS
35h 10m
1 stop
Depart: Tue May 1 2018 Return: Mon May 28 2018 Trip spans 28 days
Multiple Airlines
Multiple Airlines
LIS
ORD
32h 05m
2 stops
ORD
LIS
39h 15m
2 stops
Depart: Wed May 2 2018 Return: Fri Jun 1 2018 Trip spans 31 days
Finnair
Finnair
LIS
ORD
18h 14m
2 stops
ORD
LIS
24h 05m
1 stop
Depart: Wed May 2 2018 Return: Wed May 30 2018 Trip spans 29 days
Multiple Airlines
Multiple Airlines
LIS
ORD
42h 15m
2 stops
ORD
LIS
25h 11m
2 stops
Depart: Tue May 1 2018 Return: Sun Jun 3 2018 Trip spans 34 days
Turkish Airlines
Turkish Airlines
LIS
ORD
36h 05m
1 stop
ORD
LIS
35h 10m
1 stop
Depart: Thu May 3 2018 Return: Fri Jun 1 2018 Trip spans 30 days
Finnair
Finnair
LIS
ORD
18h 14m
2 stops
ORD
LIS
32h 10m
1 stop
Depart: Fri May 4 2018 Return: Mon May 28 2018 Trip spans 25 days
Multiple Airlines
Multiple Airlines
LIS
ORD
22h 00m
1 stop
ORD
LIS
39h 15m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Lisbon
$629
Destination

Chicago
$629