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Cheap flights from Chicago to Porto from $290

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
Multiple Airlines Logo
7:25 pm - 8:40 pmORD  Chicago O'Hare Intl-OPO Porto
19h 15m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
10:25 pm - 7:15 pmOPO  Porto-ORD Chicago O'Hare Intl
26h 50m1 stop Dublin
$581Multiple Airlines
Mon, Oct 5 - Mon, Oct 12
TAP AIR PORTUGAL Logo
6:00 pm - 8:25 pmORD  Chicago O'Hare Intl-OPO Porto
20h 25m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:00 am - 4:00 pmOPO  Porto-ORD Chicago O'Hare Intl
15h 00m1 stop Lisbon Humberto Delgado
$625TAP AIR PORTUGAL
Thu, Sep 24 - Wed, Oct 7
TAP AIR PORTUGAL Logo
6:00 pm - 12:40 amORD  Chicago O'Hare Intl-OPO Porto
24h 40m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
10:30 pm - 12:40 pmOPO  Porto-ORD Chicago O'Hare Intl
20h 10m1 stop Lisbon Humberto Delgado
$643TAP AIR PORTUGAL
Wed, Oct 7 - Wed, Oct 14
Turkish Airlines Logo
11:25 am - 9:40 amORD  Chicago O'Hare Intl-OPO Porto
16h 15m1 stop Istanbul
Turkish Airlines Logo
10:55 am - 11:00 amOPO  Porto-ORD Chicago O'Hare Intl
29h 05m1 stop Istanbul
$717Turkish Airlines
Sun, Oct 18 - Tue, Oct 27
Turkish Airlines Logo
8:10 pm - 3:40 pmORD  Chicago O'Hare Intl-OPO Porto
37h 30m1 stop Istanbul
Turkish Airlines Logo
4:25 pm - 10:00 amOPO  Porto-ORD Chicago O'Hare Intl
23h 35m1 stop Istanbul
$753Turkish Airlines
Tue, Oct 6 - Fri, Nov 20
United Airlines Logo
4:45 pm - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
10h 45m1 stop Newark
United Airlines Logo
6:00 am - 1:10 pmOPO  Porto-ORD Chicago O'Hare Intl
13h 10m1 stop Frankfurt am Main
$759United Airlines
Mon, Dec 7 - Fri, Dec 11
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
Iberia Logo
5:40 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
12h 05m1 stop Madrid Barajas
Iberia Logo
8:40 pm - 1:45 pmOPO  Porto-ORD Chicago O'Hare Intl
23h 05m2 stops Madrid Barajas London Heathrow
$794Iberia
Sun, Feb 14 - Mon, Feb 22
Iberia Logo
5:40 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
12h 05m1 stop Madrid Barajas
Iberia Logo
8:40 pm - 3:30 pmOPO  Porto-ORD Chicago O'Hare Intl
24h 50m2 stops Madrid Barajas London Heathrow
$795Iberia
Sun, Feb 14 - Mon, Feb 22

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TAP AIR PORTUGAL flights from Chicago to Porto

Our best TAP AIR PORTUGAL deals on Chicago to Porto flight tickets
TAP AIR PORTUGAL
Sep 24
ORD6:00 pmChicago O'Hare Intl
20h 25m
1 stop
OPO8:25 pmPorto
Oct 7
OPO7:00 amPorto
15h 00m
1 stop
ORD4:00 pmChicago O'Hare Intl
$625
TAP AIR PORTUGAL
Oct 7
ORD6:00 pmChicago O'Hare Intl
24h 40m
1 stop
OPO12:40 amPorto
Oct 14
OPO10:30 pmPorto
20h 10m
1 stop
ORD12:40 pmChicago O'Hare Intl
$643
TAP AIR PORTUGAL
Oct 4
ORD6:00 pmChicago O'Hare Intl
23h 00m
1 stop
OPO11:00 pmPorto
Oct 13
OPO10:30 pmPorto
23h 30m
1 stop
ORD4:00 pmChicago O'Hare Intl
$647

Delta flights from Chicago to Porto

Our best Delta deals on Chicago to Porto flight tickets
Delta
Jan 17
MDW1:00 pmChicago Midway
15h 35m
2 stops
OPO10:35 amPorto
Jan 27
OPO5:00 amPorto
17h 50m
2 stops
MDW4:50 pmChicago Midway
$780
Delta
Jan 13
MDW1:00 pmChicago Midway
15h 35m
2 stops
OPO10:35 amPorto
Jan 20
OPO5:00 amPorto
19h 37m
2 stops
MDW6:37 pmChicago Midway
$781
Delta
Nov 15
MDW1:22 pmChicago Midway
15h 13m
2 stops
OPO10:35 amPorto
Nov 25
OPO5:00 amPorto
19h 04m
2 stops
MDW6:04 pmChicago Midway
$809

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

Depart

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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

Mon 10/5

7:25 pm-8:40 pm

2 stops19h 15m

Porto

Mon 10/12

10:25 pm-7:15 pm

1 stop26h 50m

$581

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Thu 9/24

6:00 pm-8:25 pm

1 stop20h 25m

Porto

Wed 10/7

7:00 am-4:00 pm

1 stop15h 00m

$625

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 10/7

6:00 pm-12:40 am

1 stop24h 40m

Porto

Wed 10/14

10:30 pm-12:40 pm

1 stop20h 10m

$643

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 10/18

11:25 am-9:40 am

1 stop16h 15m

Porto

Tue 10/27

10:55 am-11:00 am

1 stop29h 05m

$717

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 10/6

8:10 pm-3:40 pm

1 stop37h 30m

Porto

Fri 11/20

4:25 pm-10:00 am

1 stop23h 35m

$753
Quickest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 12/7

4:45 pm-9:30 am

1 stop10h 45m

Porto

Fri 12/11

6:00 am-1:10 pm

1 stop13h 10m

$759

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

Sun 2/14

5:40 pm-11:45 am

1 stop12h 05m

Porto

Mon 2/22

8:40 pm-1:45 pm

2 stops23h 05m

$794

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 2/14

5:40 pm-11:45 am

1 stop12h 05m

Porto

Mon 2/22

8:40 pm-3:30 pm

2 stops24h 50m

$795

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 $818 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 10% 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

$290

Fastest flight time

12h 50m

Direct flights

None
The best one-way flight to Porto from Chicago in the past 72 hours is $290. 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 50m
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 50m.

  • 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
2,374 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $474Free CancellationRating
6.8
8,217 reviews
Search Lufthansa flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
10,121 reviews
Search United Airlines flights
IberiaPriceFrom $519Free CancellationRating
7.0
3,257 reviews
Search Iberia flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,992 reviews
Search American Airlines flights
KLMPriceFrom $531Free CancellationRating
7.8
1,565 reviews
Search KLM flights
Turkish AirlinesPriceFrom $618Free CancellationRating
7.4
4,479 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
Aveiro
Braga
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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