OPO - IAH

$443 Find Cheap Flights from Porto to Houston - Compare and Save

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Everything you should know

Cheapest round-trip
$632
Typical prices: $949-$1,296
Multiple Airlines
Mon 11/12Fri 11/16
OPO - IAH • 3 stops
Cheapest one-way
$443
Typical prices: $590-$871
Multiple Airlines
Fri 11/30
OPO - IAH • 3 stops
Nonstop flights
There are currently no direct flights between Porto and Houston George Bush Intcntl Airport. You'll need to take a connecting flight to reach the destination.
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When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $1,051 (round-trip)
Shortest trip • 13h 54m (one-way)
Insights
Insights
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We hope you love your trip to Houston George Bush Intcntl Airport!
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Booking Insights
Flight Deals

Cheap Flights from Porto to Houston (OPO-IAH)

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

Recent round-trip flight deals from Porto to Houston

Thu, Nov 12 - Mon, Nov 16
Multiple Airlines Logo
11:35 am - 7:23 amOPO  Porto-IAH Houston George Bush Intcntl
25h 48m3 stops Madrid Barajas Miami Atlanta Hartsfield-Jackson
Multiple Airlines Logo
2:32 pm - 3:15 pmIAH  Houston George Bush Intcntl-OPO Porto
18h 43m2 stops Miami Madrid Barajas
$632Multiple Airlines
Thu, Nov 12 - Mon, Nov 16
Multiple Airlines Logo
7:35 am - 7:23 amOPO  Porto-IAH Houston George Bush Intcntl
29h 48m3 stops Madrid Barajas Miami Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:00 am - 3:15 pmIAH  Houston George Bush Intcntl-OPO Porto
27h 15m3 stops Atlanta Hartsfield-Jackson Miami Madrid Barajas
$664Multiple Airlines
Fri, Nov 20 - Wed, Nov 25
Multiple Airlines Logo
7:25 am - 8:44 amOPO  Porto-IAH Houston George Bush Intcntl
31h 19m3 stops Barcelona-El Prat Casablanca Mohamed V Miami
Multiple Airlines Logo
9:14 pm - 10:00 amIAH  Houston George Bush Intcntl-OPO Porto
30h 46m3 stops Atlanta Hartsfield-Jackson Washington, D.C. Dulles Intl Lisbon Humberto Delgado
$861Multiple Airlines
Fri, Nov 13 - Tue, Nov 17
Multiple Airlines Logo
12:00 pm - 12:09 pmOPO  Porto-IAH Houston George Bush Intcntl
30h 09m3 stops Lisbon Humberto Delgado Miami Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:18 am - 11:20 amIAH  Houston George Bush Intcntl-OPO Porto
21h 02m3 stops Fort Lauderdale Atlanta Hartsfield-Jackson Newark
$945Multiple Airlines
Thu, Nov 12 - Mon, Nov 16
Air Canada Logo
6:00 am - 10:58 amOPO  Porto-IAH Houston George Bush Intcntl
34h 58m2 stops Frankfurt am Main Toronto Pearson Intl
Air Canada Logo
11:50 am - 3:30 pmIAH  Houston George Bush Intcntl-OPO Porto
21h 40m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
$951Air Canada
Fri, Nov 13 - Tue, Nov 17
Multiple Airlines Logo
12:00 pm - 12:09 pmOPO  Porto-IAH Houston George Bush Intcntl
30h 09m3 stops Lisbon Humberto Delgado Miami Atlanta Hartsfield-Jackson
Multiple Airlines Logo
12:19 pm - 11:20 amIAH  Houston George Bush Intcntl-OPO Porto
17h 01m2 stops Atlanta Hartsfield-Jackson Newark
$956Multiple Airlines
Thu, Nov 12 - Mon, Nov 16
Turkish Airlines Logo
4:25 pm - 7:05 pmOPO  Porto-IAH Houston George Bush Intcntl
32h 40m1 stop Istanbul
Turkish Airlines Logo
9:00 pm - 9:55 amIAH  Houston George Bush Intcntl-OPO Porto
30h 55m1 stop Istanbul
$961Turkish Airlines
Fri, Nov 20 - Wed, Nov 25
Air Canada Logo
6:00 am - 10:58 amOPO  Porto-IAH Houston George Bush Intcntl
34h 58m2 stops Frankfurt am Main Toronto Pearson Intl
Air Canada Logo
11:50 am - 11:50 amIAH  Houston George Bush Intcntl-OPO Porto
18h 00m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National
$963Air Canada
Fri, Nov 13 - Tue, Nov 17
United Airlines Logo
6:00 am - 6:15 pmOPO  Porto-IAH Houston George Bush Intcntl
18h 15m1 stop Frankfurt am Main
United Airlines Logo
12:00 pm - 9:30 amIAH  Houston George Bush Intcntl-OPO Porto
15h 30m2 stops Chicago O'Hare Intl Newark
$966United Airlines
Fri, Nov 13 - Tue, Nov 17
Turkish Airlines Logo
10:55 am - 1:10 pmOPO  Porto-IAH Houston George Bush Intcntl
32h 15m1 stop Istanbul
Turkish Airlines Logo
9:00 pm - 9:55 amIAH  Houston George Bush Intcntl-OPO Porto
30h 55m1 stop Istanbul
$969Turkish Airlines
Booking Insights

Price, demand and travel trends for Porto to Houston George Bush Intcntl Airport flights

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

What's the cheapest day of the week to fly from Porto to Houston George Bush Intcntl Airport?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Porto to Houston George Bush Intcntl Airport. It’s 19% cheaper than the average day, while Wednesday is the most expensive, with prices 17% higher.

Key details for Porto to Houston George Bush Intcntl Airport flights

Low season

March

Cheapest flight

$443
Beat the crowds with an average 75% drop in travelers.
The most popular month to fly with an average 108% increase in travelers.
One-way flight from Porto to Houston George Bush Intcntl Airport

When to book flights from Porto to Houston

Are your dates flexible? Find out the best times to travel from Porto to Houston 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 Houston George Bush Intcntl 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 Houston George Bush Intcntl Airport?

    Four cabin classes are available on flights from Porto to Houston George Bush Intcntl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Porto to Houston George Bush Intcntl Airport?

    A nonstop flight from Porto to Houston George Bush Intcntl Airport takes 00m, covering 4,726 miles.

  • Do I need a passport to fly from Porto to Houston George Bush Intcntl 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 Houston George Bush Intcntl Airport flight?

    Round-trip flights from Porto to Houston George Bush Intcntl Airport range from $949 to $1,296, with an average of $1,125 over the past 12 months. Anything below $949 counts as a good deal.

  • Have flight prices from Porto to Houston George Bush Intcntl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $632 to $3,715. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Porto to Houston George Bush Intcntl Airport looking right now?

    One-way fares from Porto to Houston George Bush Intcntl Airport are currently lower than usual. Average one-way flight prices are about $550, which is 30% below the typical average for this route.

  • What car rental options are available at Houston George Bush Intcntl Airport (IAH)?

    Houston George Bush Intcntl Airport (IAH) hosts 5 major car rental companies, with daily rates averaging $40 for economy cars. Top options include:

    • ACO Rent A Car
    • Easirent
    • America Car Rental
    • Thrifty
    • Hertz

  • Which airports can I use when flying from Porto to Houston George Bush Intcntl Airport?

    Flights from Porto to Houston George Bush Intcntl Airport usually depart from Porto (OPO) and arrive at Houston George Bush Intcntl (IAH).

  • Which airports do connecting flights from Porto to Houston George Bush Intcntl Airport pass through?

    One-stop flights from Porto to Houston George Bush Intcntl Airport most commonly connect through:

    • Amsterdam Schiphol (AMS) - 48% of one-stop connections
    • Newark (EWR) - 33% of one-stop connections
    • Istanbul (IST) - 10% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Porto to Houston George Bush Intcntl Airport?

    Yes. Flexible dates can save you up to 31% on flights from Porto to Houston George Bush Intcntl Airport. Saturday is the cheapest departure day at $922 round-trip on average, while Wednesday is the most expensive at $1,324, a difference of $402.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Porto to Houston George Bush Intcntl Airport?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 13h 49m, compared with 13h 54m via Newark (EWR) and 15h 37m via Paris Charles de Gaulle (CDG).

  • What is the time difference between Porto and Houston George Bush Intcntl Airport?

    Houston George Bush Intcntl Airport is 5 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 Houston George Bush Intcntl Airport?

    Some of the most popular sights in Houston George Bush Intcntl Airport are George R. Brown Convention Center, Daikin Park and Houston Stadium. These are among the most viewed places in Houston George Bush Intcntl Airport on KAYAK.

Your guide to booking Porto to Houston George Bush Intcntl 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 Saturday departure and avoid flying on Wednesday. On this route, Saturday flights average $922, about $402 less than Wednesday fares (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Porto to Houston George Bush Intcntl Airport trip for October. Fares historically average $863 round-trip in that month - typically $450 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Houston George Bush Intcntl Airport.

    • Houston Airport Marriott at George Bush Intercontinental

More options for your flight from Porto to Houston

Complete your trip to Houston with a hotel stay or car rental