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Cheap flights from Illinois to Porto from $232

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:40 pm - 5:50 pmORD  Chicago O'Hare Intl-OPO Porto
15h 10m1 stop London Heathrow
Multiple Airlines Logo
8:40 pm - 4:10 pmOPO  Porto-ORD Chicago O'Hare Intl
24h 30m1 stop Madrid Barajas
$574Multiple Airlines
Tue, Mar 2 - Tue, Mar 23
American Airlines Logo
4:55 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
12h 50m1 stop Madrid Barajas
American Airlines Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$576American Airlines
Sun, Oct 18 - Tue, Nov 3
Iberia Logo
6:40 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
$576Iberia
Tue, Oct 27 - Tue, Nov 3
Iberia Logo
5:40 pm - 4:00 pmORD  Chicago O'Hare Intl-OPO Porto
16h 20m1 stop Madrid Barajas
Iberia Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$576Iberia
Tue, Dec 1 - Wed, Dec 9
Multiple Airlines Logo
4:55 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
12h 50m1 stop Madrid Barajas
Multiple Airlines Logo
8:20 am - 2:55 pmOPO  Porto-ORD Chicago O'Hare Intl
12h 35m1 stop Madrid Barajas
$577Multiple Airlines
Sun, Oct 18 - Tue, Nov 3
American Airlines Logo
2:00 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
16h 45m2 stops Boston Logan 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, Oct 27 - Tue, Nov 3
United Airlines Logo
10:39 am - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
16h 51m1 stop Newark
United Airlines Logo
12:35 pm - 9:33 pmOPO  Porto-ORD Chicago O'Hare Intl
14h 58m1 stop Newark
$585United Airlines
Tue, Nov 24 - Wed, Dec 16
United Airlines Logo
9:00 am - 9:30 amORD  Chicago O'Hare Intl-OPO Porto
18h 30m2 stops Washington, D.C. Reagan-National Newark
United Airlines Logo
12:35 pm - 10:27 pmOPO  Porto-ORD Chicago O'Hare Intl
15h 52m1 stop Newark
$589United Airlines
Tue, Nov 24 - Wed, Dec 16
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
6:00 pm - 4:30 pmOPO  Porto-ORD Chicago O'Hare Intl
27h 30m1 stop Lisbon Humberto Delgado
$625TAP AIR PORTUGAL
Thu, Oct 22 - Thu, Oct 29
TAP AIR PORTUGAL Logo
6:00 pm - 11:10 pmORD  Chicago O'Hare Intl-OPO Porto
23h 10m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:05 am - 4:00 pmOPO  Porto-ORD Chicago O'Hare Intl
16h 55m1 stop Lisbon Humberto Delgado
$626TAP AIR PORTUGAL
Wed, Oct 14 - Wed, Oct 21

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Iberia flights from Illinois to Porto

Our best Iberia deals on Illinois to Porto flight tickets
Iberia
Dec 1
ORD5:40 pmChicago O'Hare Intl
16h 20m
1 stop
OPO4:00 pmPorto
Dec 9
OPO8:20 amPorto
12h 35m
1 stop
ORD2:55 pmChicago O'Hare Intl
$576
Iberia
Mar 2
ORD10:34 amChicago O'Hare Intl
15h 06m
2 stops
OPO7:40 amPorto
Mar 23
OPO8:40 pmPorto
24h 30m
1 stop
ORD4:10 pmChicago O'Hare Intl
$578
Iberia
Dec 1
ORD12:56 pmChicago O'Hare Intl
16h 49m
2 stops
OPO11:45 amPorto
Dec 9
OPO8:20 amPorto
12h 35m
1 stop
ORD2:55 pmChicago O'Hare Intl
$580

KLM flights from Illinois to Porto

Our best KLM deals on Illinois to Porto flight tickets
KLM
Dec 1
ORD6:15 pmChicago O'Hare Intl
15h 10m
2 stops
OPO3:25 pmPorto
Dec 10
OPO10:15 amPorto
13h 04m
1 stop
ORD5:19 pmChicago O'Hare Intl
$615
KLM
Dec 1
ORD6:15 pmChicago O'Hare Intl
15h 10m
2 stops
OPO3:25 pmPorto
Dec 10
OPO10:15 amPorto
16h 34m
2 stops
ORD8:49 pmChicago O'Hare Intl
$620
KLM
Nov 2
ORD4:25 pmChicago O'Hare Intl
17h 00m
1 stop
OPO3:25 pmPorto
Nov 8
OPO5:00 amPorto
15h 25m
1 stop
ORD2:25 pmChicago O'Hare Intl
$666

momondo Fare Finder

 
Use the filters below to find and compare flights from Illinois 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

Tue 3/2

8:40 pm-5:50 pm

1 stop15h 10m

Porto

Tue 3/23

8:40 pm-4:10 pm

1 stop24h 30m

$574

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 10/18

4:55 pm-11:45 am

1 stop12h 50m

Porto

Tue 11/3

8:20 am-2:55 pm

1 stop12h 35m

$576
Quickest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 10/27

6:40 pm-11:45 am

1 stop12h 05m

Porto

Tue 11/3

8:20 am-2:55 pm

1 stop12h 35m

$576

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 12/1

5:40 pm-4:00 pm

1 stop16h 20m

Porto

Wed 12/9

8:20 am-2:55 pm

1 stop12h 35m

$576

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 10/18

4:55 pm-11:45 am

1 stop12h 50m

Porto

Tue 11/3

8:20 am-2:55 pm

1 stop12h 35m

$577

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 10/27

2:00 pm-11:45 am

2 stops16h 45m

Porto

Tue 11/3

8:20 am-2:55 pm

1 stop12h 35m

$580

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 11/24

10:39 am-9:30 am

1 stop16h 51m

Porto

Wed 12/16

12:35 pm-9:33 pm

1 stop14h 58m

$585

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 11/24

9:00 am-9:30 am

2 stops18h 30m

Porto

Wed 12/16

12:35 pm-10:27 pm

1 stop15h 52m

$589

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Thu 10/22

6:00 pm-8:25 pm

1 stop20h 25m

Porto

Thu 10/29

6:00 pm-4:30 pm

1 stop27h 30m

$625

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 10/14

6:00 pm-11:10 pm

1 stop23h 10m

Porto

Wed 10/21

5:05 am-4:00 pm

1 stop16h 55m

$626

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 Illinois 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 cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Illinois, with most prices found around $577. If you aren’t able to travel during the month of January, then book flights to Porto from Illinois 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 Illinois to Porto?

You are more likely to see cheaper flights to Porto from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $823 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Illinois for as low as $674 on momondo.

Can stopping save me money on Illinois to Porto flights?

You could potentially save up to 20% on your flight if you consider stops on a Illinois to Porto flight.

Cheap Illinois to Porto flight deals and tips

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

Best Price Found

$232

Fastest flight time

10h 01m

Direct flights

None
The best one-way flight to Porto from Illinois in the past 72 hours is $232. The best round-trip flight deal from Illinois to Porto found on momondo in the last 72 hours is $574.
The fastest flight from Illinois to Porto takes 10h 01m
There are no direct flights from Illinois to Porto. There are no popular flight routes from Illinois to Porto.
Search flight deals

Frequently asked questions about flying from Illinois to Porto

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

    Prices for flights from Illinois to Porto Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois 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.

Best airlines flying from Illinois to Porto

Compare and see reviews for airlines that fly from Illinois to Porto with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $451Free CancellationRating
7.2
2,386 reviews
Search TAP AIR PORTUGAL flights
LufthansaPriceFrom $474Free CancellationRating
6.8
8,222 reviews
Search Lufthansa flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
10,212 reviews
Search United Airlines flights
IberiaPriceFrom $519Free CancellationRating
7.0
3,247 reviews
Search Iberia flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
12,052 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $618Free CancellationRating
7.4
4,474 reviews
Search Turkish 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
Aveiro
Braga
Pinhao
Matosinhos
Esposende
Chaves
Arcos de Valdevez
Viseu
Espinho
Guimarães
Lamego
Ponte de Lima
Penafiel
Caminha
Baiao
Mira

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Porto for you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto from Illinois.

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

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

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