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

Book the best Porto fare with no extra fees

Flight deals from Buffalo Niagara Airport to Porto Airport

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 ر.ق.‏ 3,346. 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 foundر.ق.‏ 1,457
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 ر.ق.‏ 2,724. 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 ر.ق.‏ 2,724.
As of March 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 Monday, 27 April 2026.
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, jetBlue offers the cheapest flight tickets to Porto.

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

  • Porto's timezone is UTC+0, which makes Porto four hours ahead of Buffalo.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport on time to board your BUF to OPO flight.

  • During popular months like August, it's best to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during a peak period in general.

  • If you'd like to visit a different city along the way, consider a flight with a stopover. To see all your options for tickets from Buffalo Niagara International Airport to Porto Airport, deselect 'Direct flights only.' Newark Liberty International Airport is a sought-after stop between BUF and OPO.

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

  • The cheapest price we've seen for a one-way Buffalo Niagara International Airport to Porto Airport flight is ر.ق.‏ 1,457. A return ticket right now is ر.ق.‏ 2,724. Depending on the availability when you book, these fares may change.

  • To score cheap tickets from BUF to OPO, book in advance. Airlines typically offer lower prices when flights are first made available.

  • The 'Whole month' search function shows you the cheapest flights from Buffalo Niagara International Airport to Porto Airport throughout the entire month. It's a great way to find a bargain if your dates are flexible.

  • You don't need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll send you an update the moment there's a new deal on cheap flights from BUF to OPO.

  • Secure the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Buffalo Niagara International Airport to Porto Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and journey duration.

Handy information about Buffalo Niagara International Airport (BUF)

  • BUF's address is Genesee Street.

  • 75.46% of flights that depart Buffalo Niagara International Airport make it to their destination on time.

  • Central Buffalo to Buffalo Niagara International Airport is around 18 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Expect a journey time of roughly 1 hour 15 minutes on public transport.

  • Need a handy hotel close to BUF? If you're catching an early flight from Buffalo Niagara International Airport to Porto Airport, these stays will put you moments from your departure gate:

Arriving at Porto Airport (OPO)

  • If you're arriving on a late Buffalo Niagara International Airport to Porto Airport flight, nothing beats the convenience of staying near the terminal. Collect your bags from the carousel and then be showered and snoozing not long after at one of these accommodation options near OPO:

  • Get your adventure underway by picking up a Porto Airport rental car. Grab a set of wheels from Klass Wagen, Goldcar or Drive & Go to explore Porto and beyond.

  • Booking your vehicle from Porto Airport around three weeks ahead boosts your odds of scoring a great price.

Getting from Porto Airport (OPO) to central Porto

  • From Porto Airport, Porto is approximately 16 kilometres away. It takes around 20 minutes to get to the centre driving.

  • It typically takes 50 minutes when travelling by public transport.

When to fly to Porto Airport (OPO)

  • It's time to pick your travel dates for your flight from Buffalo Niagara International Airport to Porto Airport. August is the busiest month to head to Porto. If you like a quieter vibe, go in January.

  • Book your flight from Buffalo Niagara International Airport to Porto Airport for August if you'd like to visit Porto during its warmest month. You can expect temperatures of between 14ºC and 32ºC.

  • If you want to travel in cooler conditions, look for a cheap ticket from BUF to OPO in January. Temperatures average between 3ºC and 14ºC then.

Explore more of Portugal

  • Porto is always a good idea, but there are so many other corners of Portugal waiting to be explored. Around 274 kilometres south of Porto, a visit to Lisbon will keep you busy. Start with attractions like Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • If you're interested in discovering another well-known destination in Portugal, head for Amadora, about 274 kilometres south of Porto. Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.