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Cheap flights from Chicago to Porto from $305

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.
Multiple Airlines Logo
8:01 pm - 8:45 amORD  Chicago O'Hare Intl-OPO Porto
54h 44m2 stops Los Angeles Barcelona-El Prat
Multiple Airlines Logo
9:35 pm - 2:00 pmOPO  Porto-ORD Chicago O'Hare Intl
22h 25m1 stop Dublin
$567Multiple Airlines
Fri, Oct 23 - Wed, Nov 4
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
9:15 pm - 4:00 pmOPO  Porto-ORD Chicago O'Hare Intl
24h 45m1 stop Lisbon Humberto Delgado
$628TAP AIR PORTUGAL
Sun, Sep 27 - Tue, Oct 13
TAP AIR PORTUGAL Logo
6:00 pm - 5:00 pmORD  Chicago O'Hare Intl-OPO Porto
17h 00m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:00 pm - 4:30 pmOPO  Porto-ORD Chicago O'Hare Intl
27h 30m1 stop Lisbon Humberto Delgado
$640TAP AIR PORTUGAL
Wed, Oct 14 - Thu, Oct 29
Multiple Airlines Logo
4:55 pm - 11:00 pmORD  Chicago O'Hare Intl-OPO Porto
24h 05m1 stop Madrid Barajas
Multiple Airlines Logo
9:35 pm - 2:00 pmOPO  Porto-ORD Chicago O'Hare Intl
22h 25m1 stop Dublin
$650Multiple Airlines
Fri, Oct 23 - Wed, Nov 4
Turkish Airlines Logo
8:10 pm - 3:40 pmORD  Chicago O'Hare Intl-OPO Porto
37h 30m1 stop Istanbul
Turkish Airlines Logo
11:00 am - 9:40 amOPO  Porto-ORD Chicago O'Hare Intl
28h 40m1 stop Istanbul
$753Turkish Airlines
Mon, Sep 28 - Thu, Oct 8
Turkish Airlines Logo
12:45 pm - 3:25 pmORD  Chicago O'Hare Intl-OPO Porto
20h 40m1 stop Istanbul
Turkish Airlines Logo
4:25 pm - 6:20 pmOPO  Porto-ORD Chicago O'Hare Intl
31h 55m1 stop Istanbul
$753Turkish Airlines
Thu, Nov 5 - Tue, Nov 10
United Airlines Logo
7:00 am - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
20h 30m1 stop Newark
United Airlines Logo
6:00 am - 3:20 pmOPO  Porto-ORD Chicago O'Hare Intl
15h 20m1 stop Frankfurt am Main
$759United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
2:20 pm - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
13h 10m1 stop Newark
United Airlines Logo
6:00 am - 8:05 pmOPO  Porto-ORD Chicago O'Hare Intl
20h 05m1 stop Frankfurt am Main
$759United Airlines
Mon, Dec 7 - Fri, Dec 11
American Airlines Logo
8:00 am - 7:40 amORD  Chicago O'Hare Intl-OPO Porto
17h 40m2 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
$772American Airlines
Sun, Jan 17 - Wed, Jan 27
American Airlines Logo
11:37 am - 7:40 amORD  Chicago O'Hare Intl-OPO Porto
14h 03m2 stops New York John F Kennedy Intl Madrid Barajas
American Airlines Logo
8:20 am - 9:12 pmOPO  Porto-ORD Chicago O'Hare Intl
18h 52m2 stops Madrid Barajas New York John F Kennedy Intl
$972American Airlines
Sun, Sep 20 - Wed, Sep 30

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KLM flights from Chicago to Porto

Our best KLM deals on Chicago to Porto flight tickets
KLM
Sep 30
MDW7:01 pmChicago Midway
14h 29m
2 stops
OPO3:30 pmPorto
Oct 7
OPO5:55 amPorto
16h 24m
2 stops
MDW4:19 pmChicago Midway
$968
KLM
Sep 30
MDW7:01 pmChicago Midway
14h 29m
2 stops
OPO3:30 pmPorto
Oct 7
OPO5:55 amPorto
16h 24m
2 stops
MDW4:19 pmChicago Midway
$976
KLM
Sep 20
MDW7:01 pmChicago Midway
14h 29m
2 stops
OPO3:30 pmPorto
Oct 1
OPO5:55 amPorto
16h 20m
2 stops
MDW4:15 pmChicago Midway
$1,029

TAP AIR PORTUGAL flights from Chicago to Porto

Our best TAP AIR PORTUGAL deals on Chicago to Porto flight tickets
TAP AIR PORTUGAL
Sep 27
ORD6:00 pmChicago O'Hare Intl
15h 00m
1 stop
OPO3:00 pmPorto
Oct 13
OPO9:15 pmPorto
24h 45m
1 stop
ORD4:00 pmChicago O'Hare Intl
$628
TAP AIR PORTUGAL
Oct 14
ORD6:00 pmChicago O'Hare Intl
17h 00m
1 stop
OPO5:00 pmPorto
Oct 29
OPO6:00 pmPorto
27h 30m
1 stop
ORD4:30 pmChicago O'Hare Intl
$640
TAP AIR PORTUGAL
Sep 27
ORD6:00 pmChicago O'Hare Intl
15h 00m
1 stop
OPO3:00 pmPorto
Oct 13
OPO10:30 pmPorto
23h 30m
1 stop
ORD4:00 pmChicago O'Hare Intl
$643

momondo Fare Finder

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

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Route

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Price

Cheapest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Fri 10/23

8:01 pm-8:45 am

2 stops54h 44m

Porto

Wed 11/4

9:35 pm-2:00 pm

1 stop22h 25m

$567

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 9/27

6:00 pm-3:00 pm

1 stop15h 00m

Porto

Tue 10/13

9:15 pm-4:00 pm

1 stop24h 45m

$628

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 10/14

6:00 pm-5:00 pm

1 stop17h 00m

Porto

Thu 10/29

6:00 pm-4:30 pm

1 stop27h 30m

$640

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Fri 10/23

4:55 pm-11:00 pm

1 stop24h 05m

Porto

Wed 11/4

9:35 pm-2:00 pm

1 stop22h 25m

$650

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 9/28

8:10 pm-3:40 pm

1 stop37h 30m

Porto

Thu 10/8

11:00 am-9:40 am

1 stop28h 40m

$753

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Thu 11/5

12:45 pm-3:25 pm

1 stop20h 40m

Porto

Tue 11/10

4:25 pm-6:20 pm

1 stop31h 55m

$753

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 12/7

7:00 am-9:30 am

1 stop20h 30m

Porto

Fri 12/11

6:00 am-3:20 pm

1 stop15h 20m

$759

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 12/7

2:20 pm-9:30 am

1 stop13h 10m

Porto

Fri 12/11

6:00 am-8:05 pm

1 stop20h 05m

$759
Quickest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 1/17

8:00 am-7:40 am

2 stops17h 40m

Porto

Wed 1/27

8:20 am-2:55 pm

1 stop12h 35m

$772

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 9/20

11:37 am-7:40 am

2 stops14h 03m

Porto

Wed 9/30

8:20 am-9:12 pm

2 stops18h 52m

$972

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $744 to $1,122.
The lowest price recently found on this route was $567.

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 $822 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 $647 on momondo.

Can stopping save me money on Chicago to Porto flights?

You could potentially save up to 47% 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

$305

Fastest flight time

12h 30m

Direct flights

None
The best one-way flight to Porto from Chicago in the past 72 hours is $305. The best round-trip flight deal from Chicago to Porto found on momondo in the last 72 hours is $567.
The fastest flight from Chicago to Porto takes 12h 30m
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 12h 30m.

  • 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
2,372 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $474Free CancellationRating
6.8
8,203 reviews
Search Lufthansa flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
10,106 reviews
Search United Airlines flights
IberiaPriceFrom $519Free CancellationRating
7.0
3,259 reviews
Search Iberia flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,983 reviews
Search American Airlines flights
KLMPriceFrom $531Free CancellationRating
7.8
1,563 reviews
Search KLM flights
Turkish AirlinesPriceFrom $618Free CancellationRating
7.4
4,481 reviews
Search Turkish Airlines flights

Traveling to a place near Porto?

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

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