625 € Cheap Flights from Buffalo Niagara to Porto

Compare Buffalo Niagara to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

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Flight deals from Buffalo Niagara to Porto

Looking for a cheap last-minute deal or the best return flight from Buffalo Niagara Airport to Porto Airport? If you want to travel next month, return fares start from 809 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Buffalo Niagara to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Buffalo Niagara to Porto flights are currently cheapest in April.

Buffalo Niagara to Porto: Alternative routes

Compare routes from Buffalo Niagara to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Buffalo to Porto: Flight information

The things to know before you go.
Cheapest flight found625 €
Cheapest month to flyApril

Finding cheap flights from Buffalo Niagara to Porto: Frequently asked questions

The best price we found for a return flight from Buffalo Niagara to Porto is 625 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Buffalo Niagara to Porto. But we found flights with one or more stops from 625 €.
As of June 2026, there are no flights flying from Buffalo Niagara to Porto.
The cheapest month to fly from Buffalo Niagara to Porto is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Buffalo Niagara Airport to Porto Airport on Wednesday, 14 April 2027.
No airlines currently offer direct flights between Buffalo Niagara Airport and Porto Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Porto.

Travelling from Buffalo Niagara Airport (BUF) to Porto Airport (OPO): what you need to know

  • Porto's timezone is UTC+0, making Porto five hours ahead of Buffalo.

  • Your BUF to OPO flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Travelling during a peak month such as August? School holidays and other popular seasons can result in longer lines at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • Break up your flight or explore another city along the way with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Buffalo Niagara Airport to Porto Airport. Many passengers pass through New York John F. Kennedy Airport on this route.

How to find the cheapest flights from Buffalo Niagara Airport (BUF) to Porto Airport (OPO)

  • Right now, 274 € is the cheapest price we've found for a one-way Buffalo Niagara Airport to Porto Airport flight. The best price for a return ticket is 625 €. Keep in mind that fares can change due to demand when booking.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from BUF to OPO if you book early. Airlines often have some fantastic early bird rates.

  • If you can be flexible with your travel plans, try using the 'Whole month' search function. It'll give you the cheapest price in each month when looking for your flight from Buffalo Niagara Airport to Porto Airport.

  • Save time looking for cheap flights from BUF to OPO by setting up a Price Alert. You'll get an email or notification through the app when fares go down.

  • Choose your preferred arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Buffalo Niagara Airport to Porto Airport.

Handy information about Buffalo Niagara Airport (BUF)

  • You'll find BUF at Genesee Street.

  • When it comes to Buffalo Niagara Airport's on-time performance, 74% of flights complete their journey on time.

  • Buffalo Niagara Airport is about 16 kilometres from central Buffalo. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • Planning to catch public transport? Expect a trip time of around 40 minutes.

  • Need a convenient hotel close to BUF? If you're catching an early flight from Buffalo Niagara Airport to Porto Airport, these accommodation options will have you moments from check-in:

Arriving at Porto Airport (OPO)

  • Book a hotel near OPO if you're taking a late Buffalo Niagara Airport to Porto Airport flight. Choose one of these accommodation options and skip the long transfer after landing:

  • Pick up a Porto Airport rental car and discover Porto and beyond with your own wheels. Klass Wagen, Goldcar and Drive & Go are popular providers you can book with here.

  • Lock in the best possible rate by booking your vehicle from Porto Airport about three weeks in advance of your trip.

Getting from Porto Airport (OPO) to central Porto

  • From Porto Airport, Porto is approximately 11 kilometres away. It takes around 20 minutes to reach the centre by car.

  • It typically takes 30 minutes if you're travelling on public transport.

When to fly to Porto Airport (OPO)

  • The quietest month for a flight from Buffalo Niagara Airport to Porto Airport is March, while August is the busiest. Choose the ideal time to visit Porto based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Porto is August, with the temperature ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your flights from Buffalo Niagara Airport to Porto Airport in this month if this is the kind of weather you like.

  • Search for cheap tickets from BUF to OPO in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 3ºC (37ºF) and 14ºC (57ºF) on average.

Explore more of Portugal

  • Lisbon is just one of the many places in Portugal waiting to be explored after you've seen Porto. Around 274 kilometres away to the south, its top attractions include Pasteis de Belém, belém and Real Mosteiro de Santa Maria de Belém.

  • If you're looking to explore another corner of Portugal, head for Amadora, about 274 kilometres south of Porto. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.