OPO - ORD

$407 Find Cheap Flights from Porto to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to Chicago departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Chicago, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$581
TAP AIR PORTUGAL
Thu 1/15Wed 1/28
OPO - ORD • 1 stop
Cheapest one-way
$407
Multiple Airlines
Sun 2/1
OPO - ORD • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Porto to Chicago (OPO-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Porto to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to Chicago

Thu, Jan 15 - Wed, Jan 28
TAP AIR PORTUGAL Logo
8:00 pm - 3:25 pm
OPO
-
ORD
25h 25m1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 6:00 pm
ORD
-
OPO
16h 50m1 stop
$581TAP AIR PORTUGAL
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
1:00 pm - 4:45 pm
OPO
-
ORD
33h 45m2 stops
Multiple Airlines Logo
7:20 pm - 9:15 pm
ORD
-
OPO
19h 55m2 stops
$609Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
1:00 pm - 4:45 pm
OPO
-
ORD
33h 45m2 stops
Multiple Airlines Logo
7:20 pm - 9:15 pm
ORD
-
OPO
19h 55m2 stops
$612Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
12:05 pm - 4:45 pm
OPO
-
ORD
34h 40m3 stops
Multiple Airlines Logo
7:20 pm - 9:15 pm
ORD
-
OPO
19h 55m2 stops
$625Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
1:00 pm - 4:45 pm
OPO
-
ORD
33h 45m2 stops
Multiple Airlines Logo
7:20 pm - 9:15 pm
ORD
-
OPO
19h 55m2 stops
$627Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
6:35 am - 10:42 pm
OPO
-
ORD
46h 07m3 stops
Multiple Airlines Logo
6:30 pm - 10:30 pm
ORD
-
OPO
22h 00m3 stops
$666Multiple Airlines
Mon, Jan 12 - Sun, Jan 25
Multiple Airlines Logo
11:35 am - 8:18 am
OPO
-
ORD
26h 43m2 stops
Multiple Airlines Logo
6:30 pm - 10:45 pm
ORD
-
OPO
22h 15m3 stops
$689Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
9:55 pm - 10:42 pm
OPO
-
ORD
30h 47m3 stops
Multiple Airlines Logo
6:30 pm - 10:30 pm
ORD
-
OPO
22h 00m3 stops
$694Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
5:10 pm - 2:45 pm
OPO
-
ORD
27h 35m2 stops
Multiple Airlines Logo
4:38 pm - 2:55 pm
ORD
-
OPO
16h 17m2 stops
$701Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
5:10 pm - 2:45 pm
OPO
-
ORD
27h 35m2 stops
Multiple Airlines Logo
6:30 pm - 8:10 am
ORD
-
OPO
31h 40m3 stops
$704Multiple Airlines
Booking Insights

KAYAK's insights & trends for Porto to Chicago flights

Get data-powered insights and trends into flights from Porto to Chicago to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Porto to Chicago?

The average price of all round-trip flights from Porto to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Porto to Chicago, look for departures on Saturdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Chicago, Friday is the cheapest day to fly and Thursday is the most expensive.

Find deals

Good to know

Cheapest flight$407
Flight from Porto to Chicago

When to book flights from Porto to Chicago

Are your dates flexible? Find out the best times to travel from Porto to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Porto to Chicago flights

  • What is the cheapest flight from Porto to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Porto to Chicago O'Hare Intl Airport was $407 for a one-way ticket and $581 for a round-trip.

  • Do I need a passport to fly between Porto and Chicago?

    Yes

  • Which aircraft models fly most regularly from Porto to Chicago?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Porto to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Porto is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Porto with another airline. Booking your flights between Porto and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Porto to Chicago

Information on your arrival and departure airports

Porto (OPO)
O'Hare Intl (ORD)