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CA $552 Cheap Flights from Buffalo (BUF) to Porto (OPO)

View CA $552 flight on Fri, Feb 12, 2027Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Porto Airport (OPO)

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Cheap flights from Buffalo (BUF) to Porto (OPO)

Prices were available within the past 7 days and start at CA $552 for one-way flights and CA $1,072 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Dec 27 - Wed, Dec 30
BUF
Buffalo
OPO
Porto
CA $1,072 Roundtrip, found 1 day ago
CA $1,072
Roundtrip
found 1 day ago
Select United flight, departing Sun, Dec 27 from Buffalo to Porto, returning Wed, Dec 30, priced at CA $1,072 found 1 day ago
United
Mon, Dec 28 - Wed, Dec 30
BUF
Buffalo
OPO
Porto
CA $1,083 Roundtrip, found 1 day ago
CA $1,083
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 28 from Buffalo to Porto, returning Wed, Dec 30, priced at CA $1,083 found 1 day ago
KLM
Mon, Dec 28 - Thu, Dec 31
BUF
Buffalo
OPO
Porto
CA $1,117 Roundtrip, found 1 day ago
CA $1,117
Roundtrip
found 1 day ago
Select KLM flight, departing Mon, Dec 28 from Buffalo to Porto, returning Thu, Dec 31, priced at CA $1,117 found 1 day ago
United
Thu, Dec 24 - Wed, Dec 30
BUF
Buffalo
OPO
Porto
CA $1,142 Roundtrip, found 1 day ago
CA $1,142
Roundtrip
found 1 day ago
Select United flight, departing Thu, Dec 24 from Buffalo to Porto, returning Wed, Dec 30, priced at CA $1,142 found 1 day ago
United
Sun, Dec 27 - Thu, Dec 31
BUF
Buffalo
OPO
Porto
CA $1,186 Roundtrip, found 1 day ago
CA $1,186
Roundtrip
found 1 day ago
Select United flight, departing Sun, Dec 27 from Buffalo to Porto, returning Thu, Dec 31, priced at CA $1,186 found 1 day ago
Air France
Thu, Dec 24 - Thu, Dec 31
BUF
Buffalo
OPO
Porto
CA $1,187 Roundtrip, found 1 day ago
CA $1,187
Roundtrip
found 1 day ago
Select Air France flight, departing Thu, Dec 24 from Buffalo to Porto, returning Thu, Dec 31, priced at CA $1,187 found 1 day ago
United
Fri, Dec 25 - Wed, Dec 30
BUF
Buffalo
OPO
Porto
CA $1,195 Roundtrip, found 1 day ago
CA $1,195
Roundtrip
found 1 day ago
Select United flight, departing Fri, Dec 25 from Buffalo to Porto, returning Wed, Dec 30, priced at CA $1,195 found 1 day ago
British Airways
Fri, Feb 12 - Sat, Feb 20
BUF
Buffalo
OPO
Porto
CA $1,217 Roundtrip, found 1 day ago
CA $1,217
Roundtrip
found 1 day ago
Select British Airways flight, departing Fri, Feb 12 from Buffalo to Porto, returning Sat, Feb 20, priced at CA $1,217 found 1 day ago
Delta
Tue, Sep 29 - Wed, Oct 7
BUF
Buffalo
OPO
Porto
CA $1,256 Roundtrip, found 1 day ago
CA $1,256
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 29 from Buffalo to Porto, returning Wed, Oct 7, priced at CA $1,256 found 1 day ago
Swiss International Air Lines
Tue, Sep 29 - Wed, Oct 7
BUF
Buffalo
OPO
Porto
CA $1,258 Roundtrip, found 1 day ago
CA $1,258
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, Sep 29 from Buffalo to Porto, returning Wed, Oct 7, priced at CA $1,258 found 1 day ago

Alternative airports near Porto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dr. Francisco de Sa Carneiro OPO. Cheapest and Closest option available. Average driving time to city centre is 14 minutes. Flights from CA $1,578
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city centre14 min
Flights from CA $1,578

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) cost?
You can find cheap one-way flights from CA $552 and cheap return flights from CA $1,072 BUF to OPO with Expedia. One-way flights typically cost between CA$817 and CA$4735. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when BUF to OPO ticket fares go up or down.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
The cheapest months to fly from BUF to OPO are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
Enter BUF to OPO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
Skywest Air is one of the cheapest airlines offering connecting return flights from Buffalo Niagara Intl. (BUF) to Dr. Francisco de Sa Carneiro (OPO), with prices starting from around CA$1664 for flights that can be booked for departure within the next year. These flights typically include a layover in O'Hare Intl. (ORD). Prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
There are approximately 27 connecting flights per day from Buffalo Niagara Intl. (BUF) to Dr. Francisco de Sa Carneiro (OPO). Some common connection points include John F. Kennedy Intl. (JFK), Logan Intl. (BOS), and O'Hare Intl. (ORD).
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
The earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) typically departs around 6:00 AM. This route is operated by American Airlines and Iberia. This is a seasonal service, active only in August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
You'll typically find the most flights from Buffalo Niagara Intl. (BUF) to Dr. Francisco de Sa Carneiro (OPO) on a Monday, with around 51 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Delta, United, and American Airlines. Looking at the week, Mondays offer notably more flight options compared to other days.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Dr. Francisco de Sa Carneiro (OPO) are in the evening, from 6pm to 9pm. Many major carriers, including United, Delta and JetBlue Airways, offer flights during this window. Many travellers prefer these times because they allow you to finish your day before heading to the airport, and you'll arrive at your destination ready to start your trip.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
There are no nonstop flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro). The distance between these two airports is approximately 5610 kilometres. Flights with one stop typically take around 9 hours 48 minutes. If you opt for flights with two or more stops, your travel time will be longer, usually around 17 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
Yes, you can fly business class between BUF and OPO. You can fly business class with Delta and United.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Porto (OPO) from Buffalo, NY (BUF)?
If you're planning to travel to Porto from Buffalo Niagara Intl. (BUF), you can fly directly into Dr. Francisco de Sa Carneiro (OPO). Some flights may connect through major hubs like O'Hare Intl. (ORD), John F. Kennedy Intl. (JFK), or Washington Dulles Intl. (IAD) before reaching Porto. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Canada, British Airways, Brussels Airlines, Delta, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United
Roundtrip price
CA $1,071
Distance
5576 km

Book with confidence

Buffalo to Porto Flights

The easy way to book your flights from Buffalo to Porto 

With Expedia, it’s simple to find and book flights to Porto from Buffalo whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Dr. Francisco de Sa Carneiro, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Buffalo to Porto today, tomorrow, or this week.  

 

Save dollars with cheap flights from Buffalo Niagara Intl., BUF to Dr. Francisco de Sa Carneiro, OPO 

Sort your search results by price to find great deals on your flight from Buffalo to Porto—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Porto from Buffalo currently is just CA $1,072 rising to CA $1,258.  

Here are more money-saving tips: 

  • Fly in December when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Porto  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Porto from Buffalo 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Porto with Expedia today.

Buffalo to Porto Flights

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