Fly from
Fly to
Route
Depart
Return
Price
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 1/30
8:00 pm-3:30 pm
1 stop25h 30m
Chicago O'Hare Intl
Sun 2/9
8:25 pm-1:00 pm
1 stop10h 35m
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 12/27
8:35 am-2:30 pm
2 stops35h 55m
Chicago O'Hare Intl
Sun 1/12
5:20 pm-9:20 pm
2 stops22h 00m
PortoChicago
OPO - ORD
OPOORD
Porto
Tue 2/4
8:20 am-7:50 pm
2 stops17h 30m
Chicago O'Hare Intl
Tue 2/11
6:35 pm-4:00 pm
2 stops15h 25m
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 12/27
8:20 am-2:30 pm
1 stop12h 10m
Chicago O'Hare Intl
Sun 1/12
4:45 pm-11:45 am
1 stop13h 00m
PortoChicago
OPO - ORD
OPOORD
Porto
Mon 2/3
6:20 am-2:30 pm
1 stop14h 10m
Chicago O'Hare Intl
Wed 2/12
10:30 am-10:50 am
2 stops18h 20m
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 1/30
6:00 am-7:37 pm
2 stops19h 37m
Chicago O'Hare Intl
Mon 2/10
2:01 pm-12:05 pm
2 stops16h 04m
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 1/30
6:00 am-1:25 pm
1 stop13h 25m
Chicago O'Hare Intl
Fri 2/14
9:25 pm-11:35 pm
1 stop20h 10m
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 1/31
11:55 am-4:15 pm
1 stop34h 20m
Chicago O'Hare Intl
Fri 2/14
7:05 pm-11:15 am
1 stop34h 10m
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 12/13
12:30 pm-10:54 am
2 stops52h 24m
Chicago O'Hare Intl
Sun 12/15
1:19 pm-1:00 pm
2 stops17h 41m
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 1/3
8:40 pm-1:55 pm
2 stops23h 15m
Chicago O'Hare Intl
Fri 1/10
10:00 pm-8:00 pm
2 stops16h 00m
Currently, September is the cheapest month in which you can book a flight from Porto to Illinois (average of $232). Flying from Porto to Illinois in June is currently the most expensive (average of $308). 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.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
Crew
Overall
Food
Entertainment
Comfort
Boarding
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Crew
Overall
Food
Entertainment
Comfort
Boarding
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Crew
Overall
Food
Entertainment
Comfort
Boarding
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Crew
Overall
Food
Entertainment
Comfort
Boarding
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Crew
Overall
Food
Entertainment
Comfort
Boarding
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Crew
Overall
Food
Entertainment
Comfort
Boarding
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
United Airlines | Cheapest$846 | Average$879 | FlexibilityNo cancel fee | On-time69% |