Find Deals on Flights from Chicago O'Hare International 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
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

Book cheap flights from Chicago O'Hare International to Portugal

(Round-trip)
Depart: Mon Feb 13 2017 Return: Wed Feb 22 2017 Trip spans 10 days
Major Airline
Major Airline
ORD
10:50p
LIS
7:15p
20h 25m
2 stops
LIS
8:05p
ORD
5:37p
21h 32m
2 stops
Depart: Thu Jan 26 2017 Return: Tue Jan 31 2017 Trip spans 6 days
British Airways
British Airways
ORD
12:10p
LIS
11:30a
23h 20m
1 stop
LIS
2:00p
ORD
4:05p
26h 05m
2 stops
Depart: Sun May 14 2017 Return: Wed May 31 2017 Trip spans 18 days
Iberia
Iberia
ORD
12:25p
LIS
1:25p
25h 00m
1 stop
LIS
2:55a
ORD
4:00p
13h 05m
1 stop
Depart: Wed May 31 2017 Return: Thu Jun 8 2017 Trip spans 9 days
Finnair
Finnair
ORD
12:25p
LIS
1:25p
25h 00m
1 stop
LIS
2:55a
ORD
4:00p
13h 05m
1 stop
Depart: Mon May 22 2017 Return: Mon Jun 26 2017 Trip spans 36 days
United
United
ORD
7:45a
LIS
10:20p
14h 35m
1 stop
LIS
8:50a
ORD
10:07p
13h 17m
1 stop
Depart: Wed Jun 14 2017 Return: Wed Aug 2 2017 Trip spans 50 days
Lufthansa
Lufthansa
ORD
5:20p
LIS
11:30a
18h 10m
1 stop
LIS
2:05a
ORD
8:25p
18h 20m
1 stop
Depart: Sat Feb 25 2017 Return: Mon Mar 6 2017 Trip spans 10 days
American Airlines
American Airlines
ORD
11:50a
LIS
12:55a
13h 05m
1 stop
LIS
1:55a
ORD
3:25p
13h 30m
1 stop
Depart: Tue Jan 3 2017 Return: Wed Jan 11 2017 Trip spans 9 days
KLM
KLM
ORD
9:26a
OPO
2:05a
16h 39m
2 stops
OPO
8:05a
ORD
5:07p
33h 02m
2 stops
Depart: Wed Jan 4 2017 Return: Wed Jan 11 2017 Trip spans 8 days
SWISS
SWISS
ORD
2:15p
OPO
11:05a
20h 50m
2 stops
OPO
11:55a
ORD
5:00p
29h 05m
2 stops
Depart: Sun Apr 9 2017 Return: Fri Apr 21 2017 Trip spans 13 days
Turkish Airlines
Turkish Airlines
ORD
5:40p
LIS
4:50a
35h 10m
1 stop
LIS
7:30a
ORD
7:35p
36h 05m
1 stop
Depart: Mon Mar 6 2017 Return: Sun Mar 19 2017 Trip spans 13 days
Major Airline
Major Airline
ORD
2:05a
LIS
11:10p
21h 05m
2 stops
LIS
3:25a
ORD
3:09p
35h 44m
2 stops
Depart: Fri May 19 2017 Return: Mon May 22 2017 Trip spans 4 days
Aer Lingus
Aer Lingus
ORD
4:20p
LIS
11:50p
31h 30m
1 stop
LIS
6:30a
ORD
3:55p
33h 25m
1 stop
Depart: Fri Jan 27 2017 Return: Fri Feb 3 2017 Trip spans 8 days
British Airways
British Airways
ORD
4:45p
LIS
7:20a
14h 35m
1 stop
LIS
1:30p
ORD
6:19p
28h 49m
2 stops
Depart: Wed Feb 1 2017 Return: Sun Feb 12 2017 Trip spans 12 days
Major Airline
Major Airline
ORD
3:15a
LIS
12:20a
21h 05m
2 stops
LIS
8:05p
ORD
5:37p
21h 32m
2 stops
Depart: Thu May 4 2017 Return: Thu May 11 2017 Trip spans 8 days
British Airways
British Airways
ORD
6:20p
LIS
1:00p
18h 40m
1 stop
LIS
6:30a
ORD
8:15p
13h 45m
1 stop
Depart: Tue Feb 14 2017 Return: Sun Feb 26 2017 Trip spans 13 days
Major Airline
Major Airline
ORD
6:05a
LIS
9:25p
15h 20m
2 stops
LIS
8:45p
ORD
2:55p
18h 10m
2 stops
Depart: Tue Apr 25 2017 Return: Tue May 9 2017 Trip spans 15 days
British Airways
British Airways
ORD
12:48p
LIS
11:15p
10h 27m
1 stop
LIS
7:10a
ORD
3:55p
32h 45m
2 stops
Depart: Sun Mar 5 2017 Return: Mon Mar 13 2017 Trip spans 8 days
Major Airline
Major Airline
ORD
4:20a
LIS
6:45p
14h 25m
2 stops
LIS
7:50a
ORD
3:09p
31h 19m
2 stops
Depart: Wed Apr 12 2017 Return: Wed Apr 19 2017 Trip spans 8 days
British Airways
British Airways
ORD
1:55p
LIS
1:00p
23h 05m
1 stop
LIS
8:50a
ORD
4:02p
31h 12m
1 stop
Depart: Mon May 15 2017 Return: Thu May 25 2017 Trip spans 11 days
Iberia
Iberia
ORD
12:25p
LIS
11:00p
10h 35m
1 stop
LIS
2:55a
ORD
4:00p
13h 05m
1 stop
* 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.

We compile tonnes of data for you
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
$460
Destination

Porto
$793
Lisbon
$460