Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Porto from $323

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Porto departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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.

Find the cheapest flights from Chicago to Porto

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Porto.
6:00 pm - 10:55 amORD-OPO
10h 55m1 stop
10:30 pm - 4:10 pmOPO-ORD
23h 40m1 stop
$540TAP AIR PORTUGAL
Find Deal
Sun, Apr 13 - Tue, Apr 29
6:00 pm - 7:50 amORD-OPO
31h 50m1 stop
4:00 pm - 4:10 pmOPO-ORD
30h 10m1 stop
$551TAP AIR PORTUGAL
Find Deal
Sun, Apr 13 - Tue, Apr 29
4:30 pm - 11:40 amORD-OPO
13h 10m1 stop
8:15 am - 2:15 pmOPO-ORD
12h 00m1 stop
$622Iberia
Find Deal
Sun, Apr 27 - Fri, May 9
4:30 pm - 3:55 pmORD-OPO
17h 25m1 stop
8:35 pm - 2:15 pmOPO-ORD
23h 40m1 stop
$645Iberia
Find Deal
Mon, May 5 - Thu, May 15
4:50 pm - 10:15 pmORD-OPO
23h 25m1 stop
6:40 am - 2:10 pmOPO-ORD
13h 30m1 stop
$651KLM
Find Deal
Wed, Apr 23 - Fri, May 2
4:15 pm - 7:15 pmORD-OPO
21h 00m2 stops
6:20 am - 2:10 pmOPO-ORD
13h 50m1 stop
$655Delta
Find Deal
Tue, Apr 22 - Tue, Apr 29
4:20 pm - 10:15 pmORD-OPO
23h 55m1 stop
6:40 am - 6:14 pmOPO-ORD
17h 34m2 stops
$661Delta
Find Deal
Mon, Apr 21 - Fri, May 2
5:10 pm - 3:30 pmORD-OPO
16h 20m1 stop
4:20 pm - 2:10 pmOPO-ORD
27h 50m1 stop
$681KLM
Find Deal
Tue, May 6 - Thu, Jun 5
8:00 pm - 9:20 amORD-OPO
31h 20m2 stops
9:00 am - 8:15 pmOPO-ORD
17h 15m2 stops
$683United Airlines
Find Deal
Tue, Aug 26 - Fri, Sep 5
2:26 pm - 7:45 amORD-OPO
11h 19m1 stop
12:10 pm - 1:12 pmOPO-ORD
31h 02m2 stops
$698United Airlines
Find Deal
Tue, Jun 10 - Thu, Jun 19

Air Canada flights from Chicago to Porto

Our best Air Canada deals on Chicago to Porto flight tickets
Air Canada
May 14
ORD10:40 amChicago O'Hare Intl
18h 45m
2 stops
OPO11:25 amPorto
May 21
OPO6:00 amPorto
20h 12m
2 stops
ORD8:12 pmChicago O'Hare Intl
Air Canada
May 6
ORD8:40 amChicago O'Hare Intl
20h 50m
2 stops
OPO11:30 amPorto
May 14
OPO6:00 amPorto
32h 50m
2 stops
ORD8:50 amChicago O'Hare Intl
Air Canada
May 14
ORD10:40 amChicago O'Hare Intl
18h 45m
2 stops
OPO11:25 amPorto
May 21
OPO6:00 amPorto
20h 12m
2 stops
ORD8:12 pmChicago O'Hare Intl

Turkish Airlines flights from Chicago to Porto

Our best Turkish Airlines deals on Chicago to Porto flight tickets
Turkish Airlines
Sep 3
ORD11:25 amChicago O'Hare Intl
16h 40m
1 stop
OPO10:05 amPorto
Sep 9
OPO10:50 amPorto
28h 50m
1 stop
ORD9:40 amChicago O'Hare Intl
Turkish Airlines
Aug 31
ORD7:50 pmChicago O'Hare Intl
32h 00m
1 stop
OPO9:50 amPorto
Sep 9
OPO10:50 amPorto
28h 50m
1 stop
ORD9:40 amChicago O'Hare Intl
Turkish Airlines
Aug 31
ORD7:50 pmChicago O'Hare Intl
32h 00m
1 stop
OPO9:50 amPorto
Sep 10
OPO10:50 amPorto
17h 10m
1 stop
ORD10:00 pmChicago O'Hare Intl

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 cheapest month to fly to Porto?

The month of November is, on average, the cheapest month to fly to Porto from Chicago, with most prices found around $539. If you aren’t able to travel during the month of November, then book flights to Porto from Chicago during February instead. Flights to Porto in February, while not as cheap as those in November, still average around $548.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Monday when prices can be found for as low as $708. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $808. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the evening is the cheapest time of day to fly from Chicago to Porto when you can find flight prices for as low as $611. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,018 on average. Flights to Porto from Chicago at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Porto?

You are more likely to see cheaper flights to Porto from Chicago when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $710 when searching 26 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 $679 on momondo.

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

$323

Fastest flight time

10h 34m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from Chicago in the past 72 hours is $323. The best round-trip flight deal from Chicago to Porto found on momondo in the last 72 hours is $540.
The fastest flight from Chicago to Porto takes 10h 34m
There are no direct flights from Chicago to Porto. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Porto Airport and Chicago Midway Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)

  • 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 10h 34m.

  • 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 $420Free CancellationRating
7.1
1,831 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $472Free CancellationRating
7.0
2,653 reviews
Search Iberia flights
DeltaPriceFrom $498Free CancellationRating
8.0
7,899 reviews
Search Delta flights
LufthansaPriceFrom $535Free CancellationRating
6.7
6,961 reviews
Search Lufthansa flights
SWISSPriceFrom $558Free CancellationRating
7.5
1,570 reviews
Search SWISS flights
KLMPriceFrom $563Free CancellationRating
7.8
1,321 reviews
Search KLM flights
United AirlinesPriceFrom $584Free CancellationRating
7.4
8,614 reviews
Search United Airlines flights
Air CanadaPriceFrom $648Free CancellationRating
7.0
9,001 reviews
Search Air Canada flights

Traveling to a place near Porto?

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

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.


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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Sat 4/5
Sat 4/12

Find better results for your trip to Portugal