BUF - OPO

$720 Find Cheap Flights from Buffalo to Porto - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$720
Typical prices: $687-$1,167
United Airlines
Fri 11/23Sat 12/8
BUF - OPO • 2 stops
When to travel
April
Cheapest • 40% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Newark (EWR)
Cheapest • Avg $717 (round-trip)
New York John F Kennedy Intl (JFK)
Shortest trip • 11h 37m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Porto (BUF-OPO)

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

Recent round-trip flight deals from Buffalo to Porto

Mon, Nov 23 - Tue, Dec 8
United Airlines Logo
10:35 am - 9:30 amBUF  Buffalo-OPO Porto
17h 55m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
6:00 am - 6:10 pmOPO  Porto-BUF Buffalo
17h 10m2 stops Frankfurt am Main Newark
$720United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
11:23 am - 9:30 amBUF  Buffalo-OPO Porto
17h 07m1 stop Newark
United Airlines Logo
6:00 am - 11:34 pmOPO  Porto-BUF Buffalo
22h 34m2 stops Frankfurt am Main Newark
$729United Airlines
Mon, Nov 23 - Tue, Dec 8
United Airlines Logo
10:51 am - 9:30 amBUF  Buffalo-OPO Porto
17h 39m1 stop Newark
United Airlines Logo
12:35 pm - 8:34 pmOPO  Porto-BUF Buffalo
12h 59m1 stop Newark
$730United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
6:30 am - 9:30 amBUF  Buffalo-OPO Porto
22h 00m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 7:19 pmOPO  Porto-BUF Buffalo
18h 19m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$733United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
11:23 am - 9:30 amBUF  Buffalo-OPO Porto
17h 07m1 stop Newark
United Airlines Logo
12:35 pm - 8:24 pmOPO  Porto-BUF Buffalo
12h 49m1 stop Newark
$739United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
11:23 am - 9:30 amBUF  Buffalo-OPO Porto
17h 07m1 stop Newark
United Airlines Logo
6:00 am - 8:56 pmOPO  Porto-BUF Buffalo
19h 56m2 stops Frankfurt am Main Chicago O'Hare Intl
$1,079United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
6:30 am - 9:30 amBUF  Buffalo-OPO Porto
22h 00m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
12:35 pm - 9:44 amOPO  Porto-BUF Buffalo
26h 09m2 stops Frankfurt am Main Chicago O'Hare Intl
$1,083United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
11:23 am - 9:30 amBUF  Buffalo-OPO Porto
17h 07m1 stop Newark
United Airlines Logo
12:35 pm - 8:24 pmOPO  Porto-BUF Buffalo
12h 49m1 stop Newark
$1,089United Airlines
Sun, Dec 27 - Fri, Jan 1
Multiple Airlines Logo
10:50 am - 11:50 amBUF  Buffalo-OPO Porto
20h 00m2 stops Boston Logan Intl Ponta Delgada Nordela
Multiple Airlines Logo
12:40 pm - 11:15 amOPO  Porto-BUF Buffalo
27h 35m2 stops Ponta Delgada Nordela Boston Logan Intl
$1,480Multiple Airlines
Sun, Dec 27 - Fri, Jan 1
United Airlines Logo
4:47 pm - 9:30 amBUF  Buffalo-OPO Porto
11h 43m1 stop Newark
United Airlines Logo
12:35 pm - 11:09 pmOPO  Porto-BUF Buffalo
15h 34m1 stop Newark
$1,534United Airlines
Booking Insights

Price, demand and travel trends for Buffalo to Porto 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 Buffalo to Porto?

Round-trip flights from Buffalo to Porto typically range from $687 to $1,167. The lowest price found in the past 5 days was $720, on United Airlines.

Find deals

Key details for Buffalo to Porto flights

Low season

January

Cheapest flight

$720
Beat the crowds with an average 82% drop in travelers.
The most popular month to fly with an average 26% increase in travelers.
Round-trip flight from Buffalo to Porto

When to book flights from Buffalo to Porto

Are your dates flexible? Find out the best times to travel from Buffalo to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Buffalo to Porto 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 Buffalo to Porto?

    Only Economy Class is available on flights from Buffalo to Porto.

  • How long is a flight from Buffalo to Porto?

    There are currently no nonstop flights available from Buffalo to Porto. Flights with 1 layover take between 11h 37m and 11h 53m in total, depending on the connection.

  • Do I need a passport to fly from Buffalo to Porto?

    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 Buffalo to Porto flight?

    Round-trip flights from Buffalo to Porto range from $687 to $1,167, with an average of $974 over the past 12 months. Anything below $687 counts as a good deal.

  • Have flight prices from Buffalo to Porto 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 $720 to $1,538. That means the highest observed fare was about 2x higher than the lowest one.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from Buffalo to Porto?

    Flights from Buffalo to Porto usually depart from Buffalo (BUF) and arrive at Porto (OPO).

  • Which airports do connecting flights from Buffalo to Porto pass through?

    Connecting flights from Buffalo to Porto most commonly pass through:

    • New York John F Kennedy Intl (JFK) - 86% of one-stop connections
    • Newark (EWR) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from Buffalo to Porto?

    Yes. Flexible dates can save you up to 67% on flights from Buffalo to Porto. Tuesday is the cheapest departure day at $539 round-trip on average, while Saturday is the most expensive at $1,592, a difference of $1,053.

    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 Buffalo to Porto?

    Flying via New York John F Kennedy Intl (JFK) gives the shortest average 1-stop total travel time at 11h 37m, compared with 11h 53m via Newark (EWR).

  • What is the time difference between Buffalo and Porto?

    Porto is 5 hours ahead of Buffalo (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

Your guide to booking Buffalo to Porto 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 Saturday. On this route, Tuesday flights average $539, about $1,053 less than Saturday fares (66% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Buffalo to Porto trip for April. Fares historically average $587 round-trip in that month - typically $778 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

    • Opo Hotel Porto Aeroporto

More options for your flight from Buffalo to Porto

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

Car rentals in Porto
Hotels in Porto
Vacations in Porto