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Cheap flights from Porto to Chicago from $399

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Porto to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 50m1 stop Kastrup Copenhagen
$571Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$579Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$581Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 11:05 amORD  Chicago O'Hare Intl-OPO Porto
33h 50m1 stop Kastrup Copenhagen
$605Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 4:45 pmORD  Chicago O'Hare Intl-OPO Porto
15h 30m1 stop Kastrup Copenhagen
$610Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:50 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
28h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 10:30 amORD  Chicago O'Hare Intl-OPO Porto
33h 15m2 stops Kastrup Copenhagen Amsterdam Schiphol
$615Scandinavian Airlines
Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
7:10 am - 7:15 pmOPO  Porto-ORD Chicago O'Hare Intl
18h 05m2 stops Madrid Barajas Dublin
Multiple Airlines Logo
9:05 pm - 11:00 pmORD  Chicago O'Hare Intl-OPO Porto
20h 55m2 stops Dublin Madrid Barajas
$624Multiple Airlines
Wed, Oct 21 - Wed, Oct 28
Multiple Airlines Logo
2:20 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
32h 25m3 stops Warsaw Frederic Chopin Duesseldorf Intl Kastrup Copenhagen
Multiple Airlines Logo
7:15 pm - 8:10 amORD  Chicago O'Hare Intl-OPO Porto
30h 55m3 stops Kastrup Copenhagen Duesseldorf Intl Barcelona-El Prat
$627Multiple Airlines
Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
10:15 am - 2:00 pmOPO  Porto-ORD Chicago O'Hare Intl
33h 45m2 stops Barcelona-El Prat Vienna Intl
Multiple Airlines Logo
9:50 pm - 6:45 amORD  Chicago O'Hare Intl-OPO Porto
26h 55m3 stops Munich Franz Josef Strauss Barcelona-El Prat Madrid Barajas
$636Multiple Airlines
Fri, Nov 6 - Fri, Nov 13
Scandinavian Airlines Logo
5:50 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
28h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 4:55 pmORD  Chicago O'Hare Intl-OPO Porto
15h 40m1 stop Kastrup Copenhagen
$646Scandinavian Airlines
Thu, Nov 5 - Thu, Nov 12

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American Airlines flights from Porto to Chicago O'Hare Intl Airport

Our best American Airlines deals on Porto to Chicago O'Hare Intl Airport flight tickets
American Airlines
Dec 14
OPO8:20 amPorto
12h 35m
1 stop
ORD2:55 pmChicago O'Hare Intl
Jan 4
ORD1:11 pmChicago O'Hare Intl
16h 34m
2 stops
OPO11:45 amPorto
$789
American Airlines
Dec 15
OPO8:20 amPorto
31h 22m
2 stops
ORD9:42 amChicago O'Hare Intl
Jan 5
ORD1:11 pmChicago O'Hare Intl
20h 49m
2 stops
OPO4:00 pmPorto
$795
American Airlines
Oct 20
OPO8:20 amPorto
19h 09m
2 stops
ORD9:29 pmChicago O'Hare Intl
Nov 21
ORD10:37 amChicago O'Hare Intl
15h 03m
2 stops
OPO7:40 amPorto
$804

Scandinavian Airlines flights from Porto to Chicago O'Hare Intl Airport

Our best Scandinavian Airlines deals on Porto to Chicago O'Hare Intl Airport flight tickets
Scandinavian Airlines
Nov 1
OPO5:35 pmPorto
29h 10m
1 stop
ORD4:45 pmChicago O'Hare Intl
Nov 14
ORD7:10 pmChicago O'Hare Intl
34h 55m
1 stop
OPO12:05 pmPorto
$570
Scandinavian Airlines
Nov 1
OPO5:35 pmPorto
29h 10m
1 stop
ORD4:45 pmChicago O'Hare Intl
Nov 14
ORD7:15 pmChicago O'Hare Intl
34h 50m
1 stop
OPO12:05 pmPorto
$571
Scandinavian Airlines
Nov 1
OPO5:35 pmPorto
29h 10m
1 stop
ORD4:45 pmChicago O'Hare Intl
Nov 14
ORD7:10 pmChicago O'Hare Intl
34h 55m
1 stop
OPO12:05 pmPorto
$579

momondo Fare Finder

 
Use the filters below to find and compare flights from Porto to Chicago O'Hare Intl Airport that are best for you.

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Depart

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Price

Cheapest round-trip

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Sun 11/1

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

Sat 11/14

7:15 pm-12:05 pm

1 stop34h 50m

$571

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Sun 11/1

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

Sat 11/14

7:10 pm-12:05 pm

1 stop34h 55m

$579

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Sun 11/1

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

Sat 11/14

7:10 pm-12:05 pm

1 stop34h 55m

$581

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Sun 11/1

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

Sat 11/14

7:15 pm-11:05 am

1 stop33h 50m

$605

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Sun 11/1

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

Sat 11/14

7:15 pm-4:45 pm

1 stop15h 30m

$610

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Thu 11/5

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Thu 11/12

7:15 pm-10:30 am

2 stops33h 15m

$615
Quickest round-trip

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Wed 10/21

7:10 am-7:15 pm

2 stops18h 05m

Chicago O'Hare Intl

Wed 10/28

9:05 pm-11:00 pm

2 stops20h 55m

$624

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Thu 11/5

2:20 pm-4:45 pm

3 stops32h 25m

Chicago O'Hare Intl

Thu 11/12

7:15 pm-8:10 am

3 stops30h 55m

$627

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Fri 11/6

10:15 am-2:00 pm

2 stops33h 45m

Chicago O'Hare Intl

Fri 11/13

9:50 pm-6:45 am

3 stops26h 55m

$636

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Thu 11/5

5:50 pm-4:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Thu 11/12

7:15 pm-4:55 pm

1 stop15h 40m

$646

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Porto to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How have Porto to Chicago O'Hare Intl Airport flight prices changed over time?

When to book flights from Porto to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Chicago O'Hare Intl Airport (OPO to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Chicago O'Hare Intl Airport

Best Price Found

$399

Fastest flight time

13h 25m

Direct flights

None
The best one-way flight to Chicago O'Hare Intl Airport from Porto in the past 72 hours is $399. The best round-trip flight deal from Porto to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $571.
The fastest flight from Porto to Chicago O'Hare Intl Airport takes 13h 25m
There are no direct flights from Porto to Chicago O'Hare Intl Airport. There are no popular flight routes from Porto to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from Porto to Chicago O'Hare Intl Airport

  • How far is Porto to Chicago O'Hare Intl by plane?

    Porto and Chicago O'Hare Intl are 3936.9 mi apart from one another. 13h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Porto Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Porto Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Porto Airport to Chicago O'Hare Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
Merrillville
Rockford
South Haven
Rosemont
Gurnee
Oak Brook
Orland Park
Joliet
Naperville
New Buffalo
Kenosha
Hammond
Aurora
Racine
Elgin
Janesville
Evanston
Skokie

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Porto.

Can I find flights from Porto to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Porto with this policy.

How can momondo help me find flights from Porto to Chicago?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Porto to Chicago.

I’m not ready to book a flight from Porto to Chicago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Porto to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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