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Cheap flights from Chicago to Porto from $308

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.
TAP AIR PORTUGAL Logo
8:10 pm - 11:45 pmORD  Chicago O'Hare Intl-OPO Porto
21h 35m1 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
$547TAP AIR PORTUGAL
Sun, Mar 7 - Sun, Mar 14
TAP AIR PORTUGAL Logo
8:10 pm - 3:00 pmORD  Chicago O'Hare Intl-OPO Porto
12h 50m1 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
$548TAP AIR PORTUGAL
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m3 stops Kastrup Copenhagen Stockholm Arlanda Brussels Bruxelles-National
Multiple Airlines Logo
5:40 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 05m2 stops Stockholm Arlanda Kastrup Copenhagen
$620Multiple Airlines
Mon, Feb 8 - Thu, Feb 18
Scandinavian Airlines Logo
7:10 pm - 11:05 amORD  Chicago O'Hare Intl-OPO Porto
33h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
11:55 am - 5:45 pmOPO  Porto-ORD Chicago O'Hare Intl
34h 50m1 stop Kastrup Copenhagen
$630Scandinavian Airlines
Mon, Mar 8 - Wed, Mar 17
Lufthansa Logo
4:20 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
13h 25m1 stop Frankfurt am Main
Lufthansa Logo
6:00 am - 1:10 pmOPO  Porto-ORD Chicago O'Hare Intl
13h 10m1 stop Frankfurt am Main
$720Lufthansa
Tue, Feb 9 - Tue, Feb 16
Iberia Logo
7:05 pm - 4:00 pmORD  Chicago O'Hare Intl-OPO Porto
14h 55m2 stops Newark Madrid Barajas
Iberia Logo
12:25 pm - 10:34 pmOPO  Porto-ORD Chicago O'Hare Intl
16h 09m2 stops Madrid Barajas New York John F Kennedy Intl
$728Iberia
Sun, Apr 18 - Tue, Apr 27
United Airlines Logo
2:30 pm - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
13h 00m1 stop Newark
United Airlines Logo
6:00 am - 4:20 pmOPO  Porto-ORD Chicago O'Hare Intl
15h 20m1 stop Frankfurt am Main
$734United Airlines
Tue, Mar 9 - Tue, Mar 16
United Airlines Logo
9:00 am - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
18h 30m1 stop Newark
United Airlines Logo
6:00 am - 1:10 pmOPO  Porto-ORD Chicago O'Hare Intl
13h 10m1 stop Frankfurt am Main
$734United Airlines
Sun, Mar 7 - Thu, Mar 11
Iberia Logo
7:05 pm - 4:00 pmORD  Chicago O'Hare Intl-OPO Porto
14h 55m2 stops Newark Madrid Barajas
Iberia Logo
8:20 am - 9:00 pmOPO  Porto-ORD Chicago O'Hare Intl
18h 40m2 stops Madrid Barajas Boston Logan Intl
$736Iberia
Sun, Apr 25 - Thu, Apr 29
Lufthansa Logo
9:50 pm - 11:55 pmORD  Chicago O'Hare Intl-OPO Porto
20h 05m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 1:10 pmOPO  Porto-ORD Chicago O'Hare Intl
13h 10m1 stop Frankfurt am Main
$772Lufthansa
Wed, Nov 25 - Wed, Dec 9

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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
Mar 7
ORD8:10 pmChicago O'Hare Intl
21h 35m
1 stop
OPO11:45 pmPorto
Mar 14
OPO5:00 amPorto
16h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
$547
TAP AIR PORTUGAL
Feb 7
ORD8:10 pmChicago O'Hare Intl
11h 20m
1 stop
OPO1:30 pmPorto
Feb 14
OPO8:30 amPorto
13h 00m
1 stop
ORD3:30 pmChicago O'Hare Intl
$548
TAP AIR PORTUGAL
Jan 13
ORD7:00 pmChicago O'Hare Intl
21h 00m
1 stop
OPO10:00 pmPorto
Jan 20
OPO5:00 amPorto
16h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
$549

United Airlines flights from Chicago to Porto

Our best United Airlines deals on Chicago to Porto flight tickets
United Airlines
Mar 7
ORD4:45 pmChicago O'Hare Intl
10h 45m
1 stop
OPO9:30 amPorto
Mar 12
OPO6:00 amPorto
15h 20m
1 stop
ORD3:20 pmChicago O'Hare Intl
$734
United Airlines
Nov 24
ORD2:30 pmChicago O'Hare Intl
13h 00m
1 stop
OPO9:30 amPorto
Dec 10
OPO6:00 amPorto
15h 20m
1 stop
ORD3:20 pmChicago O'Hare Intl
$804
United Airlines
Nov 27
ORD2:03 pmChicago O'Hare Intl
13h 27m
2 stops
OPO9:30 amPorto
Dec 10
OPO6:00 amPorto
13h 10m
1 stop
ORD1:10 pmChicago O'Hare Intl
$843

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

Sun 3/7

8:10 pm-11:45 pm

1 stop21h 35m

Porto

Sun 3/14

5:00 am-3:30 pm

1 stop16h 30m

$547

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 12/6

8:10 pm-3:00 pm

1 stop12h 50m

Porto

Sun 12/13

5:00 am-3:30 pm

1 stop16h 30m

$548

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 2/8

7:10 pm-12:05 pm

3 stops34h 55m

Porto

Thu 2/18

5:40 pm-4:45 pm

2 stops29h 05m

$620

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 3/8

7:10 pm-11:05 am

1 stop33h 55m

Porto

Wed 3/17

11:55 am-5:45 pm

1 stop34h 50m

$630
Quickest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 2/9

4:20 pm-11:45 am

1 stop13h 25m

Porto

Tue 2/16

6:00 am-1:10 pm

1 stop13h 10m

$720

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 4/18

7:05 pm-4:00 pm

2 stops14h 55m

Porto

Tue 4/27

12:25 pm-10:34 pm

2 stops16h 09m

$728

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 3/9

2:30 pm-9:30 am

1 stop13h 00m

Porto

Tue 3/16

6:00 am-4:20 pm

1 stop15h 20m

$734

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 3/7

9:00 am-9:30 am

1 stop18h 30m

Porto

Thu 3/11

6:00 am-1:10 pm

1 stop13h 10m

$734

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 4/25

7:05 pm-4:00 pm

2 stops14h 55m

Porto

Thu 4/29

8:20 am-9:00 pm

2 stops18h 40m

$736

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 11/25

9:50 pm-11:55 pm

1 stop20h 05m

Porto

Wed 12/9

6:00 am-1:10 pm

1 stop13h 10m

$772

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 $700 to $786.
The lowest price recently found on this route was $547.

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 $589. If you aren’t able to travel during the month of January, then book flights to Porto from Chicago during February instead. Flights to Porto in February, while not as cheap as those in January, still average around $689.

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 week ahead of your departure date. In general, you can expect to find flights to Porto for around $890 when searching week 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 $687 on momondo.

Can stopping save me money on Chicago to Porto flights?

You could potentially save up to 11% 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

$308

Fastest flight time

11h 20m

Direct flights

None
The best one-way flight to Porto from Chicago in the past 72 hours is $308. The best round-trip flight deal from Chicago to Porto found on momondo in the last 72 hours is $547.
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 $480Free CancellationRating
7.2
2,398 reviews
Search TAP AIR PORTUGAL flights
IberiaPriceFrom $519Free CancellationRating
7.0
3,227 reviews
Search Iberia flights
LufthansaPriceFrom $545Free CancellationRating
6.8
8,295 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $630Free CancellationRating
7.4
4,467 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $658Free CancellationRating
7.3
10,492 reviews
Search United Airlines flights

Traveling to a place near Porto?

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