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Cheap flights from Chicago to Porto from $300

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 7/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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.
TAP AIR PORTUGAL Logo
6:10 pm - 8:25 pmORD-OPO
20h 15m1 stop
TAP AIR PORTUGAL Logo
10:25 pm - 12:35 pmOPO-ORD
20h 10m1 stop
$499TAP AIR PORTUGAL
Find Deal
Mon, Sep 15 - Wed, Oct 1
Scandinavian Airlines Logo
7:00 am - 11:00 amORD-OPO
22h 00m2 stops
Scandinavian Airlines Logo
5:55 pm - 4:10 pmOPO-ORD
28h 15m1 stop
$538Scandinavian Airlines
Find Deal
Tue, Aug 26 - Fri, Sep 5
Lufthansa Logo
10:30 pm - 11:20 pmORD-OPO
18h 50m2 stops
Lufthansa Logo
12:30 pm - 8:05 pmOPO-ORD
13h 35m1 stop
$595Lufthansa
Find Deal
Mon, Oct 13 - Tue, Nov 11
Delta Logo
5:59 pm - 3:30 pmMDW-OPO
15h 31m2 stops
Delta Logo
6:15 am - 6:07 pmOPO-MDW
17h 52m2 stops
$615Delta
Find Deal
Wed, Oct 15 - Wed, Oct 22
United Airlines Logo
3:35 pm - 9:25 amORD-OPO
11h 50m1 stop
United Airlines Logo
12:50 pm - 9:51 amOPO-ORD
27h 01m1 stop
$623United Airlines
Find Deal
Wed, Sep 17 - Tue, Sep 30
United Airlines Logo
3:35 pm - 9:25 amORD-OPO
11h 50m1 stop
United Airlines Logo
6:00 am - 12:55 pmOPO-ORD
12h 55m1 stop
$633United Airlines
Find Deal
Wed, Sep 17 - Wed, Oct 1
Lufthansa Logo
10:30 pm - 11:20 pmORD-OPO
18h 50m2 stops
Lufthansa Logo
1:45 pm - 1:25 pmOPO-ORD
29h 40m2 stops
$636Lufthansa
Find Deal
Mon, Oct 13 - Tue, Nov 11
Delta Logo
1:45 pm - 3:30 pmORD-OPO
19h 45m2 stops
Delta Logo
6:20 am - 2:40 pmOPO-ORD
14h 20m1 stop
$655Delta
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Wed, May 7 - Wed, May 14
KLM Logo
7:25 pm - 3:35 pmORD-OPO
14h 10m2 stops
KLM Logo
4:20 pm - 2:10 pmOPO-ORD
27h 50m1 stop
$753KLM
Find Deal
Mon, May 12 - Mon, May 26
KLM Logo
5:39 pm - 3:35 pmORD-OPO
15h 56m2 stops
KLM Logo
8:10 pm - 2:10 pmOPO-ORD
24h 00m1 stop
$778KLM
Find Deal
Mon, Jun 30 - Wed, Jul 9

KLM flights from Chicago to Porto

Our best KLM deals on Chicago to Porto flight tickets
KLM
May 12
ORD7:25 pmChicago O'Hare Intl
14h 10m
2 stops
OPO3:35 pmPorto
May 26
OPO4:20 pmPorto
27h 50m
1 stop
ORD2:10 pmChicago O'Hare Intl
KLM
Jun 30
ORD5:39 pmChicago O'Hare Intl
15h 56m
2 stops
OPO3:35 pmPorto
Jul 9
OPO8:10 pmPorto
24h 00m
1 stop
ORD2:10 pmChicago O'Hare Intl
KLM
Jun 11
MDW7:21 pmChicago Midway
14h 14m
2 stops
OPO3:35 pmPorto
Jun 18
OPO6:15 amPorto
17h 25m
2 stops
MDW5:40 pmChicago Midway

United Airlines flights from Chicago to Porto

Our best United Airlines deals on Chicago to Porto flight tickets
United Airlines
Sep 17
ORD3:35 pmChicago O'Hare Intl
11h 50m
1 stop
OPO9:25 amPorto
Sep 30
OPO12:50 pmPorto
27h 01m
1 stop
ORD9:51 amChicago O'Hare Intl
United Airlines
Sep 17
ORD3:35 pmChicago O'Hare Intl
11h 50m
1 stop
OPO9:25 amPorto
Oct 1
OPO6:00 amPorto
12h 55m
1 stop
ORD12:55 pmChicago O'Hare Intl
United Airlines
Aug 27
ORD3:35 pmChicago O'Hare Intl
11h 45m
1 stop
OPO9:20 amPorto
Sep 4
OPO12:10 pmPorto
28h 28m
2 stops
ORD10:38 amChicago 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 18 weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $698 when searching 18 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 $664 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

$300

Fastest flight time

10h 00m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from Chicago in the past 72 hours is $300. The best round-trip flight deal from Chicago to Porto found on momondo in the last 72 hours is $499.
The fastest flight from Chicago to Porto takes 10h 00m
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 45m.

  • 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 $416Free CancellationRating
7.1
1,846 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $472Free CancellationRating
7.0
2,686 reviews
Search Iberia flights
British AirwaysPriceFrom $504Free CancellationRating
6.6
6,805 reviews
Search British Airways flights
DeltaPriceFrom $514Free CancellationRating
8.0
7,920 reviews
Search Delta flights
LufthansaPriceFrom $535Free CancellationRating
6.7
7,030 reviews
Search Lufthansa flights
SWISSPriceFrom $558Free CancellationRating
7.5
1,582 reviews
Search SWISS flights
KLMPriceFrom $563Free CancellationRating
7.8
1,333 reviews
Search KLM flights
United AirlinesPriceFrom $584Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
Air CanadaPriceFrom $646Free CancellationRating
7.0
9,195 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
Matosinhos
Vila Nova de Gaia
Caminha
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.


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