Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Porto from $218

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.
TAP AIR PORTUGAL Logo
7:00 pm - 11:45 pmORD  Chicago O'Hare Intl-OPO Porto
22h 45m1 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
$556TAP AIR PORTUGAL
Wed, Mar 3 - Wed, Mar 10
TAP AIR PORTUGAL Logo
8:10 pm - 7:00 pmORD  Chicago O'Hare Intl-OPO Porto
16h 50m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:00 pm - 3:30 pmOPO  Porto-ORD Chicago O'Hare Intl
27h 30m1 stop Lisbon Humberto Delgado
$557TAP AIR PORTUGAL
Sun, Dec 6 - Sat, Dec 12
Multiple Airlines Logo
8:10 pm - 1:30 pmORD  Chicago O'Hare Intl-OPO Porto
11h 20m1 stop Lisbon Humberto Delgado
Multiple Airlines Logo
1:25 pm - 3:30 pmOPO  Porto-ORD Chicago O'Hare Intl
56h 05m2 stops Malaga Lisbon Humberto Delgado
$608Multiple Airlines
Fri, Nov 27 - Fri, Dec 4
Multiple Airlines Logo
8:10 pm - 1:30 pmORD  Chicago O'Hare Intl-OPO Porto
11h 20m1 stop Lisbon Humberto Delgado
Multiple Airlines Logo
1:25 pm - 3:30 pmOPO  Porto-ORD Chicago O'Hare Intl
56h 05m2 stops Malaga Lisbon Humberto Delgado
$609Multiple Airlines
Fri, Nov 27 - Fri, Dec 4
Turkish Airlines Logo
12:45 pm - 3:25 pmORD  Chicago O'Hare Intl-OPO Porto
20h 40m1 stop Istanbul
Turkish Airlines Logo
10:55 am - 7:20 pmOPO  Porto-ORD Chicago O'Hare Intl
37h 25m1 stop Istanbul
$726Turkish Airlines
Thu, Mar 11 - Thu, Mar 18
Turkish Airlines Logo
11:45 am - 3:25 pmORD  Chicago O'Hare Intl-OPO Porto
21h 40m1 stop Istanbul
Turkish Airlines Logo
4:10 pm - 6:20 pmOPO  Porto-ORD Chicago O'Hare Intl
32h 10m1 stop Istanbul
$726Turkish Airlines
Tue, Nov 10 - Tue, Nov 17
United Airlines Logo
7:10 am - 9:45 amORD  Chicago O'Hare Intl-OPO Porto
20h 35m1 stop Newark
United Airlines Logo
6:00 am - 2:50 pmOPO  Porto-ORD Chicago O'Hare Intl
14h 50m1 stop Frankfurt am Main
$728United Airlines
Sun, Apr 18 - Thu, Apr 22
United Airlines Logo
1:10 pm - 9:45 amORD  Chicago O'Hare Intl-OPO Porto
14h 35m1 stop Newark
United Airlines Logo
6:00 am - 2:50 pmOPO  Porto-ORD Chicago O'Hare Intl
14h 50m1 stop Frankfurt am Main
$728United Airlines
Sun, Apr 18 - Thu, Apr 29
Iberia Logo
11:30 am - 7:40 amORD  Chicago O'Hare Intl-OPO Porto
14h 10m2 stops New York John F Kennedy Intl Madrid Barajas
Iberia Logo
8:20 am - 9:00 pmOPO  Porto-ORD Chicago O'Hare Intl
18h 40m2 stops Madrid Barajas Boston Logan Intl
$735Iberia
Wed, Apr 14 - Wed, Apr 21
Iberia Logo
3:16 pm - 11:45 amORD  Chicago O'Hare Intl-OPO Porto
14h 29m2 stops Boston Logan Intl Madrid Barajas
Iberia Logo
8:20 am - 9:00 pmOPO  Porto-ORD Chicago O'Hare Intl
18h 40m2 stops Madrid Barajas Boston Logan Intl
$735Iberia
Wed, Apr 7 - Wed, Apr 14

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 Illinois to Porto

Our best TAP AIR PORTUGAL deals on Illinois to Porto flight tickets
TAP AIR PORTUGAL
Mar 3
ORD7:00 pmChicago O'Hare Intl
22h 45m
1 stop
OPO11:45 pmPorto
Mar 10
OPO5:00 amPorto
16h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
$556
TAP AIR PORTUGAL
Dec 2
ORD7:00 pmChicago O'Hare Intl
17h 00m
1 stop
OPO6:00 pmPorto
Dec 8
OPO6:00 pmPorto
27h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
$557
TAP AIR PORTUGAL
Nov 25
ORD7:00 pmChicago O'Hare Intl
23h 30m
1 stop
OPO12:30 amPorto
Dec 6
OPO5:00 amPorto
16h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
$562

SWISS flights from Illinois to Porto

Our best SWISS deals on Illinois to Porto flight tickets
SWISS
Feb 14
ORD6:50 pmChicago O'Hare Intl
34h 25m
1 stop
OPO11:15 amPorto
Feb 22
OPO7:20 pmPorto
26h 55m
1 stop
ORD4:15 pmChicago O'Hare Intl
$707
SWISS
Apr 14
ORD7:05 pmChicago O'Hare Intl
17h 25m
1 stop
OPO6:30 pmPorto
Apr 21
OPO8:40 amPorto
13h 15m
1 stop
ORD3:55 pmChicago O'Hare Intl
$710
SWISS
Feb 14
ORD6:50 pmChicago O'Hare Intl
34h 25m
1 stop
OPO11:15 amPorto
Feb 22
OPO7:20 pmPorto
26h 55m
1 stop
ORD4:15 pmChicago O'Hare Intl
$716

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

Wed 3/3

7:00 pm-11:45 pm

1 stop22h 45m

Porto

Wed 3/10

5:00 am-3:30 pm

1 stop16h 30m

$556

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 12/6

8:10 pm-7:00 pm

1 stop16h 50m

Porto

Sat 12/12

6:00 pm-3:30 pm

1 stop27h 30m

$557

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Fri 11/27

8:10 pm-1:30 pm

1 stop11h 20m

Porto

Fri 12/4

1:25 pm-3:30 pm

2 stops56h 05m

$608

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Fri 11/27

8:10 pm-1:30 pm

1 stop11h 20m

Porto

Fri 12/4

1:25 pm-3:30 pm

2 stops56h 05m

$609

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Thu 3/11

12:45 pm-3:25 pm

1 stop20h 40m

Porto

Thu 3/18

10:55 am-7:20 pm

1 stop37h 25m

$726

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 11/10

11:45 am-3:25 pm

1 stop21h 40m

Porto

Tue 11/17

4:10 pm-6:20 pm

1 stop32h 10m

$726

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 4/18

7:10 am-9:45 am

1 stop20h 35m

Porto

Thu 4/22

6:00 am-2:50 pm

1 stop14h 50m

$728
Quickest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 4/18

1:10 pm-9:45 am

1 stop14h 35m

Porto

Thu 4/29

6:00 am-2:50 pm

1 stop14h 50m

$728

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 4/14

11:30 am-7:40 am

2 stops14h 10m

Porto

Wed 4/21

8:20 am-9:00 pm

2 stops18h 40m

$735

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 4/7

3:16 pm-11:45 am

2 stops14h 29m

Porto

Wed 4/14

8:20 am-9:00 pm

2 stops18h 40m

$735

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 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 $634. 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 $679.

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 week ahead of your departure date. In general, you can expect to find flights to Porto for around $866 when searching week 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 $687 on momondo.

Can stopping save me money on Illinois to Porto flights?

You could potentially save up to 8% 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

$218

Fastest flight time

10h 25m

Direct flights

None
The best one-way flight to Porto from Illinois in the past 72 hours is $218. The best round-trip flight deal from Illinois to Porto found on momondo in the last 72 hours is $556.
The fastest flight from Illinois to Porto takes 10h 25m
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 $480Free CancellationRating
7.2
2,386 reviews
Search TAP AIR PORTUGAL flights
IberiaPriceFrom $519Free CancellationRating
7.0
3,244 reviews
Search Iberia flights
American AirlinesPriceFrom $524Free CancellationRating
7.0
12,196 reviews
Search American Airlines flights
LufthansaPriceFrom $545Free CancellationRating
6.8
8,295 reviews
Search Lufthansa flights
United AirlinesPriceFrom $623Free CancellationRating
7.3
10,444 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $630Free CancellationRating
7.4
4,463 reviews
Search Turkish 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
Matosinhos
Esposende
Chaves
Viseu
Espinho
Arcos de Valdevez
Guimarães
Lamego
Caminha
Penafiel
Ponte de Lima
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.

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
Fri 11/27
Fri 12/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal