Find Deals on Flights from Chicago to Portugal

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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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago to Portugal

(Round-trip)
Depart: Sun Mar 26 2017 Return: Tue Apr 4 2017 Trip spans 10 days
Turkish Airlines
Turkish Airlines
ORD
LIS
30h 50m
1 stop
LIS
ORD
31h 50m
1 stop
Depart: Sun Jun 25 2017 Return: Mon Jul 31 2017 Trip spans 37 days
British Airways
British Airways
ORD
LIS
19h 10m
1 stop
LIS
ORD
13h 00m
1 stop
Depart: Wed Apr 26 2017 Return: Thu May 11 2017 Trip spans 16 days
Major Airline
Major Airline
ORD
LIS
11h 40m
1 stop
LIS
ORD
13h 00m
1 stop
Depart: Thu May 4 2017 Return: Fri May 12 2017 Trip spans 9 days
Iberia
Iberia
ORD
LIS
10h 45m
1 stop
LIS
ORD
13h 05m
1 stop
Depart: Sat Jul 1 2017 Return: Thu Jul 13 2017 Trip spans 13 days
$1000
Select
Aer Lingus
Aer Lingus
ORD
LIS
32h 15m
1 stop
LIS
ORD
21h 35m
1 stop
Depart: Tue Apr 4 2017 Return: Mon Apr 10 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
ORD
LIS
35h 10m
1 stop
LIS
ORD
36h 05m
1 stop
Depart: Sun May 21 2017 Return: Tue May 30 2017 Trip spans 10 days
$1206
Select
KLM
KLM
MDW
LIS
20h 00m
2 stops
LIS
MDW
16h 58m
2 stops
Depart: Tue Mar 21 2017 Return: Thu Mar 30 2017 Trip spans 10 days
$1233
Select
Delta
Delta
MDW
LIS
17h 02m
2 stops
LIS
MDW
21h 21m
2 stops
Depart: Sun Apr 16 2017 Return: Tue May 2 2017 Trip spans 17 days
Turkish Airlines
Turkish Airlines
ORD
OPO
31h 40m
1 stop
OPO
ORD
35h 20m
1 stop
Depart: Tue Feb 28 2017 Return: Mon Mar 6 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
ORD
LIS
36h 00m
1 stop
LIS
ORD
36h 20m
1 stop
Depart: Fri Mar 3 2017 Return: Thu Mar 9 2017 Trip spans 7 days
Turkish Airlines
Turkish Airlines
ORD
OPO
32h 25m
1 stop
OPO
ORD
35h 10m
1 stop
Depart: Sun Jul 23 2017 Return: Tue Aug 1 2017 Trip spans 10 days
British Airways
British Airways
ORD
LIS
18h 35m
1 stop
LIS
ORD
21h 35m
1 stop
Depart: Sun Apr 23 2017 Return: Thu May 4 2017 Trip spans 12 days
Turkish Airlines
Turkish Airlines
ORD
LIS
35h 10m
1 stop
LIS
ORD
36h 05m
1 stop
Depart: Wed Jun 7 2017 Return: Sat Jun 10 2017 Trip spans 4 days
British Airways
British Airways
ORD
LIS
12h 15m
1 stop
LIS
ORD
13h 00m
1 stop
Depart: Thu Apr 20 2017 Return: Tue Apr 25 2017 Trip spans 6 days
Turkish Airlines
Turkish Airlines
ORD
OPO
34h 55m
1 stop
OPO
ORD
35h 20m
1 stop
Depart: Sun Apr 30 2017 Return: Thu May 4 2017 Trip spans 5 days
$1048
Select
Aer Lingus
Aer Lingus
ORD
FAO
18h 00m
1 stop
FAO
ORD
13h 25m
1 stop
Depart: Mon May 8 2017 Return: Sat May 20 2017 Trip spans 13 days
British Airways
British Airways
ORD
LIS
19h 20m
1 stop
LIS
ORD
24h 35m
1 stop
Depart: Fri Mar 31 2017 Return: Sun Apr 9 2017 Trip spans 10 days
Turkish Airlines
Turkish Airlines
ORD
LIS
30h 50m
1 stop
LIS
ORD
31h 50m
1 stop
Depart: Thu Mar 9 2017 Return: Sun Apr 23 2017 Trip spans 45 days
$1209
Select
Major Airline
Major Airline
ORD
OPO
16h 18m
2 stops
OPO
ORD
18h 30m
2 stops
Depart: Sun May 28 2017 Return: Sun Jun 4 2017 Trip spans 8 days
$1233
Select
Delta
Delta
MDW
LIS
15h 40m
2 stops
LIS
MDW
16h 18m
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,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Chicago
only $539
only $1206
Destination

Porto
$565
Lisbon
$539
Faro
$1048