
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $653 |
One-way from | $415 |
Popular in | January |
Cheapest in | February |
Average price | $829 |
Good one-way deal | $670 or less |
Fly from
Fly to
Route
Depart
Return
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 8/14
6:00 am-11:00 am
1 stop35h 00m
Chicago O'Hare Intl
Sat 8/15
5:00 pm-6:55 am
1 stop31h 55m
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Fri 5/22
1:00 pm-12:11 pm
2 stops29h 11m
Chicago O'Hare Intl
Sun 5/24
8:45 am-8:20 am
1 stop17h 35m
PortoChicago
OPO - ORD
OPOORD
Porto
Sun 6/21
4:40 pm-9:40 am
1 stop23h 00m
Chicago O'Hare Intl
Mon 7/6
8:10 pm-9:45 am
1 stop31h 35m
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 6/11
6:00 am-2:55 pm
1 stop14h 55m
Chicago O'Hare Intl
Sun 6/14
7:10 am-9:45 am
1 stop20h 35m
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 6/4
12:10 pm-7:55 pm
1 stop13h 45m
Chicago O'Hare Intl
Sun 6/7
8:45 am-9:45 am
1 stop19h 00m
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 5/21
12:10 pm-7:55 pm
1 stop13h 45m
Chicago O'Hare Intl
Fri 6/5
7:10 am-6:55 am
1 stop17h 45m
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 5/21
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Fri 6/5
5:19 pm-3:25 pm
2 stops16h 06m
PortoChicago
OPO - ORD
OPOORD
Porto
Wed 6/17
6:00 am-2:55 pm
1 stop14h 55m
Chicago O'Hare Intl
Wed 6/24
3:10 pm-11:20 am
1 stop14h 10m
PortoChicago
OPO - ORD
OPOORD
Porto
Tue 6/9
6:00 am-2:55 pm
1 stop14h 55m
Chicago O'Hare Intl
Tue 6/16
5:00 am-6:15 am
1 stop19h 15m
FaroChicago
FAO - ORD
FAOORD
Faro
Fri 9/11
8:00 pm-3:55 pm
1 stop25h 55m
Chicago O'Hare Intl
Mon 9/14
7:05 pm-2:45 pm
1 stop13h 40m
Currently, February is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $473). Flying from Portugal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $880). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Portugal to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
About 26% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 128 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 26% of flights being delayed.
Overall
Entertainment
Food
Comfort
Boarding
Crew
Reviews
Anonymous,Dec 2025
LIS - EWR
Overall
Entertainment
Food
Comfort
Boarding
Crew
Reviews
Anonymous,Dec 2025
LIS - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$665 | Average$1,209 | FlexibilityNo cancel fee | On-timeN/A |