OPO - ORD

$388 Find Cheap Flights from Porto to Chicago - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$568
Typical prices: $762-$991
Scandinavian Airlines
Thu 11/1Wed 11/14
OPO - ORD • 1 stop
Cheapest one-way
$388
Typical prices: $610-$852
Multiple Airlines
Fri 3/9
OPO - ORD • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Porto and Chicago O'Hare Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 4% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $821 (round-trip)
Newark (EWR)
Shortest trip • 12h 15m (one-way)
Insights
Insights
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We hope you love your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Porto to Chicago (OPO-ORD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to Chicago

Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$568Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 4:45 pmORD  Chicago O'Hare Intl-OPO Porto
15h 35m1 stop Kastrup Copenhagen
$569Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$570Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 50m1 stop Kastrup Copenhagen
$571Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$572Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$573Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$579Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 14
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 12:05 pmORD  Chicago O'Hare Intl-OPO Porto
34h 55m1 stop Kastrup Copenhagen
$581Scandinavian Airlines
Fri, Nov 6 - Fri, Nov 13
Multiple Airlines Logo
10:15 am - 2:00 pmOPO  Porto-ORD Chicago O'Hare Intl
33h 45m2 stops Barcelona-El Prat Vienna Intl
Multiple Airlines Logo
9:50 pm - 6:45 amORD  Chicago O'Hare Intl-OPO Porto
26h 55m3 stops Munich Franz Josef Strauss Barcelona-El Prat Madrid Barajas
$636Multiple Airlines
Fri, Nov 6 - Fri, Nov 13
Multiple Airlines Logo
10:15 am - 2:00 pmOPO  Porto-ORD Chicago O'Hare Intl
33h 45m2 stops Barcelona-El Prat Vienna Intl
Multiple Airlines Logo
9:50 pm - 9:15 pmORD  Chicago O'Hare Intl-OPO Porto
17h 25m2 stops Munich Franz Josef Strauss Barcelona-El Prat
$648Multiple Airlines
Booking Insights

Price, demand and travel trends for Porto to Chicago O'Hare Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Porto to Chicago O'Hare Intl Airport?

Round-trip flights from Porto to Chicago O'Hare Intl Airport typically range from $762 to $991. The lowest price found in the past 5 days was $568, on Scandinavian Airlines.

What's the cheapest day of the week to fly from Porto to Chicago O'Hare Intl Airport?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Porto to Chicago O'Hare Intl Airport. It’s 2% cheaper than the average day, while Sunday is the most expensive, with prices 47% higher.

What’s the cheapest month to fly from Porto to Chicago O'Hare Intl Airport?

•January is the cheapest month to fly from Porto to Chicago O'Hare Intl Airport at $804 round-trip.
•March ($1,243) and July ($1,151) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 54% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Porto to Chicago O'Hare Intl Airport flights

Low season

May

Cheapest flight

$388
Beat the crowds with an average 74% drop in travelers.
The most popular month to fly with an average 5% increase in travelers.
One-way flight from Porto to Chicago O'Hare Intl Airport

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

Your Porto to Chicago O'Hare Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Porto to Chicago O'Hare Intl Airport?

    Three cabin classes are available on flights from Porto to Chicago O'Hare Intl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Porto to Chicago O'Hare Intl Airport?

    A nonstop flight from Porto to Chicago O'Hare Intl Airport takes 00m, covering 3,931 miles.

  • Do I need a passport to fly from Porto to Chicago O'Hare Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Porto to Chicago O'Hare Intl Airport flight?

    Round-trip flights from Porto to Chicago O'Hare Intl Airport range from $762 to $991, with an average of $841 over the past 12 months. Anything below $762 counts as a good deal.

  • How are flight prices from Porto to Chicago O'Hare Intl Airport looking right now?

    One-way fares from Porto to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $420, which is 42% below the typical average for this route.

  • What car rental options are available at Chicago O'Hare Intl Airport (ORD)?

    Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Dollar
    • Ace

  • Which airports can I use when flying from Porto to Chicago O'Hare Intl Airport?

    Flights from Porto to Chicago O'Hare Intl Airport usually depart from Porto (OPO) and arrive at Chicago O'Hare Intl (ORD).

  • Which airports do connecting flights from Porto to Chicago O'Hare Intl Airport pass through?

    One-stop flights from Porto to Chicago O'Hare Intl Airport most commonly connect through:

    • Amsterdam Schiphol (AMS) - 28% of one-stop connections
    • Lisbon Humberto Delgado (LIS) - 28% of one-stop connections
    • Madrid Barajas (MAD) - 14% of one-stop connections
    • Newark (EWR) - 11% of one-stop connections

  • Can I save money by using flexible dates for flights from Porto to Chicago O'Hare Intl Airport?

    Yes. Flexible dates can save you up to 34% on flights from Porto to Chicago O'Hare Intl Airport. Tuesday is the cheapest departure day at $825 round-trip on average, while Sunday is the most expensive at $1,243, a difference of $418.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Porto to Chicago O'Hare Intl Airport?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 12h 15m, compared with 12h 23m via Madrid Barajas (MAD) and 13h 01m via Lisbon Humberto Delgado (LIS).

  • What is the time difference between Porto and Chicago O'Hare Intl Airport?

    Chicago O'Hare Intl Airport is 6 hours behind Porto (Central Time vs Western European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Chicago O'Hare Intl Airport?

    Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and Soldier Field. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

Your guide to booking Porto to Chicago O'Hare Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $825, about $418 less than Sunday fares (34% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Porto to Chicago O'Hare Intl Airport trip for January. Fares historically average $804 round-trip in that month - typically $439 less than the most expensive month, which is March (based on the last 12 months).

More options for your flight from Porto to Chicago

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