Find Cheap Flights from Chicago O'Hare International to Porto (ORD - OPO)

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Looking for a cheap flight? 25% of our users found flights on this route for $866 or less.

FAQs for Booking Chicago O'Hare International to Porto Flights

How long does a flight from Chicago O'Hare International to Porto take?
An average nonstop flight takes 13h 55m, covering a distance of 3937 miles.
Which airlines provide the cheapest flights from Chicago O'Hare International to Porto?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($637) and Turkish Airlines ($662)
Do I need a passport to fly between Chicago O'Hare International and Porto?
Yes.

Book cheap flights from Chicago O'Hare International to Porto (round-trip)

Airports
Origin
Chicago
$637
only
$637
Destination
Porto
$637
only
$637
Wed, Apr 11
ORD
OPO
18h 30m
Wed, May 23
OPO
ORD
17h 50m
Trip: 43 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 8
ORD
OPO
31h 40m
Mon, Apr 16
OPO
ORD
32h 05m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
IST
ORD
Good 7.3

Turkish A/L always professional and efficient.

Unmanaged two-year olds crying throughout the 10-hour flight. Will avoid IST going forward as well. Chaotic airport with little or no management present. Had to wait through SIX separate lines for a simple flight transfer. Had the body scans TWICE. Ridiculous. Nearly missed my 10-hour flight to Chicago.

JFK
IST
Excellent 8.6

The food was excellent

DEL
IST
Excellent 10.0

Excellent service. Even the food was great :-). The bathroom cream and parfume were a nice touch. Nice hot towels, Nice touch to provide a menu! Check-in was a breeze

LAX
IST
Excellent 10.0

I love the food and service, thank you Turkish airlines, you are the best in the world

IST
LAX
Excellent 10.0

The food service movies the crew

Tue, Apr 10
ORD
OPO
19h 20m
Wed, May 23
OPO
ORD
17h 50m
Trip: 44 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 8
ORD
OPO
31h 40m
Sun, Apr 15
OPO
ORD
32h 05m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
LAX
IST
Excellent 10.0

I love the food and service, thank you Turkish airlines, you are the best in the world

IST
ORD
Good 7.3

Turkish A/L always professional and efficient.

Unmanaged two-year olds crying throughout the 10-hour flight. Will avoid IST going forward as well. Chaotic airport with little or no management present. Had to wait through SIX separate lines for a simple flight transfer. Had the body scans TWICE. Ridiculous. Nearly missed my 10-hour flight to Chicago.

IST
OTP
Excellent 10.0

i like because can interline from qatar airways and baggage through as well. so i do not need to check in again.

DEL
IST
Excellent 10.0

Excellent service. Even the food was great :-). The bathroom cream and parfume were a nice touch. Nice hot towels, Nice touch to provide a menu! Check-in was a breeze

IST
GRU
Good 7.0

Elite member flying with my wife, no preference boarding for Elite. Were assigned to different group letter No good answers Dissapointed

Wed, Apr 11
ORD
OPO
18h 30m
Thu, May 24
OPO
ORD
15h 40m
Trip: 44 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 9
ORD
OPO
31h 40m
Sun, Apr 15
OPO
ORD
32h 05m
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
LAX
IST
Excellent 8.0

Movies varaiety

YYZ
IST
Good 6.3

Punctual in terms of reaching destination, all else average.

Less leg space, pantry service below expectations.

LAX
IST
Excellent 10.0

I love the food and service, thank you Turkish airlines, you are the best in the world

IST
ORD
Good 7.3

Turkish A/L always professional and efficient.

Unmanaged two-year olds crying throughout the 10-hour flight. Will avoid IST going forward as well. Chaotic airport with little or no management present. Had to wait through SIX separate lines for a simple flight transfer. Had the body scans TWICE. Ridiculous. Nearly missed my 10-hour flight to Chicago.

IST
GRU
Good 7.0

Elite member flying with my wife, no preference boarding for Elite. Were assigned to different group letter No good answers Dissapointed

Fri, Apr 20
ORD
OPO
20h 10m
Tue, Apr 24
OPO
ORD
15h 40m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
ORD
OPO
19h 20m
Thu, May 24
OPO
ORD
15h 40m
Trip: 45 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
ORD
OPO
34h 55m
Sun, Apr 15
OPO
ORD
32h 05m
Trip: 6 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
YYZ
IST
Good 6.3

Punctual in terms of reaching destination, all else average.

Less leg space, pantry service below expectations.

LAX
IST
Excellent 10.0

I love the food and service, thank you Turkish airlines, you are the best in the world

IST
OTP
Excellent 10.0

i like because can interline from qatar airways and baggage through as well. so i do not need to check in again.

LAX
IST
Excellent 8.0

Movies varaiety

JFK
IST
Mediocre 2.0

Flight was delayed. Missed my connecting flight. Had to wait 12 hrs in Istanbul for the next flight to Tirana. I missed my mother’s funeral.

Tue, May 8
ORD
OPO
17h 40m
Wed, May 23
OPO
ORD
17h 50m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 9
ORD
OPO
31h 40m
Tue, May 22
OPO
ORD
35h 20m
Trip: 44 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
DEL
IST
Excellent 10.0

Excellent service. Even the food was great :-). The bathroom cream and parfume were a nice touch. Nice hot towels, Nice touch to provide a menu! Check-in was a breeze

LAX
IST
Excellent 8.0

Movies varaiety

YYZ
IST
Good 6.3

Punctual in terms of reaching destination, all else average.

Less leg space, pantry service below expectations.

IST
LAX
Excellent 10.0

The food service movies the crew

IST
GRU
Good 7.0

Elite member flying with my wife, no preference boarding for Elite. Were assigned to different group letter No good answers Dissapointed

Fri, Apr 20
ORD
OPO
20h 10m
Fri, Apr 27
OPO
ORD
15h 40m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 8
ORD
OPO
31h 40m
Wed, May 23
OPO
ORD
35h 20m
Trip: 46 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18087 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
JFK
IST
Mediocre 2.0

Flight was delayed. Missed my connecting flight. Had to wait 12 hrs in Istanbul for the next flight to Tirana. I missed my mother’s funeral.

LAX
IST
Excellent 10.0

I love the food and service, thank you Turkish airlines, you are the best in the world

IST
LAX
Excellent 10.0

The food service movies the crew

JFK
IST
Excellent 8.6

The food was excellent

IST
ORD
Good 7.3

Turkish A/L always professional and efficient.

Unmanaged two-year olds crying throughout the 10-hour flight. Will avoid IST going forward as well. Chaotic airport with little or no management present. Had to wait through SIX separate lines for a simple flight transfer. Had the body scans TWICE. Ridiculous. Nearly missed my 10-hour flight to Chicago.

Fri, Apr 20
ORD
OPO
20h 10m
Sun, Apr 29
OPO
ORD
22h 00m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 20
ORD
OPO
20h 10m
Thu, Apr 26
OPO
ORD
18h 00m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 22
ORD
OPO
19h 45m
Fri, Apr 27
OPO
ORD
22h 00m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 8
ORD
OPO
17h 40m
Thu, May 24
OPO
ORD
16h 25m
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 11
ORD
OPO
17h 40m
Wed, May 23
OPO
ORD
17h 50m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 10
ORD
OPO
13h 55m
Wed, May 23
OPO
ORD
17h 50m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 20
ORD
OPO
20h 10m
Wed, Apr 25
OPO
ORD
15h 30m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews

Chicago O'Hare International to Porto Flight Information

Flights Arrive in Porto
Flights Depart from Chicago O'Hare International
Flight Price $637
Distance 3937 miles
Airlines Turkish Airlines
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.