Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Porto from $273

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:15 pm - 4:45 pmORD  Chicago O'Hare Intl-OPO Porto
15h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
5:45 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 00m1 stop Kastrup Copenhagen
$470Scandinavian Airlines
Sat, Nov 7 - Fri, Nov 20
TAP AIR PORTUGAL Logo
6:00 pm - 3:00 pmORD  Chicago O'Hare Intl-OPO Porto
15h 00m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
8:30 am - 4:30 pmOPO  Porto-ORD Chicago O'Hare Intl
13h 00m1 stop Lisbon Humberto Delgado
$554TAP AIR PORTUGAL
Wed, Oct 21 - Fri, Oct 30
TAP AIR PORTUGAL Logo
7:00 pm - 1:30 pmORD  Chicago O'Hare Intl-OPO Porto
12h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:00 am - 3:30 pmOPO  Porto-ORD Chicago O'Hare Intl
16h 30m1 stop Lisbon Humberto Delgado
$563TAP AIR PORTUGAL
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
9:48 pm - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
29h 42m1 stop Newark
United Airlines Logo
12:35 pm - 1:54 pmOPO  Porto-ORD Chicago O'Hare Intl
31h 19m1 stop Newark
$574United Airlines
Sat, Nov 7 - Fri, Nov 20
United Airlines Logo
7:48 pm - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
31h 42m1 stop Newark
United Airlines Logo
12:35 pm - 9:45 amOPO  Porto-ORD Chicago O'Hare Intl
27h 10m2 stops Newark Washington, D.C. Dulles Intl
$574United Airlines
Sat, Nov 7 - Fri, Nov 20
Iberia Logo
5:40 pm - 8:00 pmORD  Chicago O'Hare Intl-OPO Porto
20h 20m1 stop Madrid Barajas
Iberia Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$575Iberia
Tue, Nov 10 - Fri, Nov 20
Iberia Logo
5:40 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
12h 05m1 stop Madrid Barajas
Iberia Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$575Iberia
Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
7:15 pm - 8:10 amORD  Chicago O'Hare Intl-OPO Porto
30h 55m3 stops Kastrup Copenhagen Brussels Bruxelles-National Barcelona-El Prat
Multiple Airlines Logo
11:00 am - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
35h 45m3 stops Lisbon Humberto Delgado Brussels Bruxelles-National Kastrup Copenhagen
$575Multiple Airlines
Sat, Nov 7 - Fri, Nov 20
American Airlines Logo
8:05 am - 7:40 amORD  Chicago O'Hare Intl-OPO Porto
17h 35m2 stops Charlotte Douglas Madrid Barajas
American Airlines Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$580American Airlines
Wed, Nov 11 - Wed, Nov 18
American Airlines Logo
10:31 am - 7:40 amORD  Chicago O'Hare Intl-OPO Porto
15h 09m2 stops New York John F Kennedy Intl Madrid Barajas
American Airlines Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$580American Airlines
Tue, Nov 17 - Tue, Nov 24

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

TAP AIR PORTUGAL flights from Chicago to Porto

Our best TAP AIR PORTUGAL deals on Chicago to Porto flight tickets
TAP AIR PORTUGAL
Oct 21
ORD6:00 pmChicago O'Hare Intl
15h 00m
1 stop
OPO3:00 pmPorto
Oct 30
OPO8:30 amPorto
13h 00m
1 stop
ORD4:30 pmChicago O'Hare Intl
$554
TAP AIR PORTUGAL
Nov 11
ORD7:00 pmChicago O'Hare Intl
12h 30m
1 stop
OPO1:30 pmPorto
Nov 18
OPO5:00 amPorto
16h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
$563
TAP AIR PORTUGAL
Feb 19
ORD8:10 pmChicago O'Hare Intl
11h 20m
1 stop
OPO1:30 pmPorto
Feb 26
OPO8:30 amPorto
13h 00m
1 stop
ORD3:30 pmChicago O'Hare Intl
$567

United Airlines flights from Chicago to Porto

Our best United Airlines deals on Chicago to Porto flight tickets
United Airlines
Nov 7
ORD9:48 pmChicago O'Hare Intl
29h 42m
1 stop
OPO9:30 amPorto
Nov 20
OPO12:35 pmPorto
31h 19m
1 stop
ORD1:54 pmChicago O'Hare Intl
$574
United Airlines
Nov 7
ORD9:48 pmChicago O'Hare Intl
29h 42m
1 stop
OPO9:30 amPorto
Nov 20
OPO12:35 pmPorto
31h 19m
1 stop
ORD1:54 pmChicago O'Hare Intl
$576
United Airlines
Dec 6
ORD5:29 pmChicago O'Hare Intl
10h 01m
1 stop
OPO9:30 amPorto
Dec 15
OPO12:35 pmPorto
13h 31m
1 stop
ORD8:06 pmChicago O'Hare Intl
$584

momondo Fare Finder

 
Use the filters below to find and compare flights from Chicago to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sat 11/7

7:15 pm-4:45 pm

1 stop15h 30m

Porto

Fri 11/20

5:45 pm-4:45 pm

1 stop29h 00m

$470

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 10/21

6:00 pm-3:00 pm

1 stop15h 00m

Porto

Fri 10/30

8:30 am-4:30 pm

1 stop13h 00m

$554

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 11/11

7:00 pm-1:30 pm

1 stop12h 30m

Porto

Wed 11/18

5:00 am-3:30 pm

1 stop16h 30m

$563

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sat 11/7

9:48 pm-9:30 am

1 stop29h 42m

Porto

Fri 11/20

12:35 pm-1:54 pm

1 stop31h 19m

$574

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sat 11/7

7:48 pm-9:30 am

1 stop31h 42m

Porto

Fri 11/20

12:35 pm-9:45 am

2 stops27h 10m

$574

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 11/10

5:40 pm-8:00 pm

1 stop20h 20m

Porto

Fri 11/20

8:20 am-2:55 pm

1 stop12h 35m

$575
Quickest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 11/11

5:40 pm-11:45 am

1 stop12h 05m

Porto

Wed 11/18

8:20 am-2:55 pm

1 stop12h 35m

$575

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sat 11/7

7:15 pm-8:10 am

3 stops30h 55m

Porto

Fri 11/20

11:00 am-4:45 pm

3 stops35h 45m

$575

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 11/11

8:05 am-7:40 am

2 stops17h 35m

Porto

Wed 11/18

8:20 am-2:55 pm

1 stop12h 35m

$580

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 11/17

10:31 am-7:40 am

2 stops15h 09m

Porto

Tue 11/24

8:20 am-2:55 pm

1 stop12h 35m

$580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Porto from

How to get the cheapest flight ticket from Chicago to Porto

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

What is the typical price of a round-trip flight between Chicago and Porto?

Prices are currently low for flights on this route.

Typical prices usually range from $790 to $1,065.
The lowest price recently found on this route was $470.

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Chicago, with most prices found around $577. If you aren’t able to travel during the month of January, then book flights to Porto from Chicago during April instead. Flights to Porto in April, while not as cheap as those in January, still average around $610.

How far in advance should I book a flight from Chicago to Porto?

You are more likely to see cheaper flights to Porto from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $836 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Chicago for as low as $674 on momondo.

Can stopping save me money on Chicago to Porto flights?

You could potentially save up to 17% on your flight if you consider stops on a Chicago to Porto flight.

When to book flights from Chicago to Porto

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

Cheap Chicago to Porto (CHI to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Porto

Best Price Found

$273

Fastest flight time

11h 20m

Direct flights

None
The best one-way flight to Porto from Chicago in the past 72 hours is $273. The best round-trip flight deal from Chicago to Porto found on momondo in the last 72 hours is $470.
The fastest flight from Chicago to Porto takes 11h 20m
There are no direct flights from Chicago to Porto. There are no popular flight routes from Chicago to Porto.
Search flight deals

Frequently asked questions about flying from Chicago to Porto

  • How far is Chicago to Porto by plane?

    A flight from Chicago to Porto will travel around 3927.7 mi. By plane, this route typically takes 11h 20m.

  • When did momondo last update prices for flights from Chicago to Porto Airport?

    Prices for flights from Chicago to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Porto Airport?

  • How old do you have to be to fly from Chicago to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Chicago to Porto?

Best airlines flying from Chicago to Porto

Compare and see reviews for airlines that fly from Chicago to Porto with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $451Free CancellationRating
7.2
2,377 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $474Free CancellationRating
6.8
8,238 reviews
Search Lufthansa flights
IberiaPriceFrom $519Free CancellationRating
7.0
3,253 reviews
Search Iberia flights
American AirlinesPriceFrom $524Free CancellationRating
7.0
12,082 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $618Free CancellationRating
7.4
4,463 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $623Free CancellationRating
7.4
10,225 reviews
Search United Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Vila Nova de Gaia
Braga
Aveiro
Pinhao
Matosinhos
Esposende
Chaves
Viseu
Arcos de Valdevez
Espinho
Guimarães
Lamego
Ponte de Lima
Penafiel
Caminha
Mira

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Porto. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Chicago to Porto flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Porto from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Chicago to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/22
Thu 10/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal