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$576+ Cheap flights from Buffalo (BUF) to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — OPO
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap flight deals from Buffalo to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$698
(United Airlines)

One-way from

$576
(Delta)
Provider with most accurate pricing for Buffalo-Porto flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Porto flights.
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From Buffalo to Porto
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One-way flight from Buffalo to Porto
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Find flight deals from Buffalo to Porto

Cheapest flights from Buffalo to Porto
Explore the most affordable flight options available from Buffalo to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/214:23 pmBUF - OPO
1 stop12h 22mUnited Airlines
Sat 9/66:00 amOPO - BUF
2 stops17h 21mUnited Airlines
Deal found 3/24$698
This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:45 pmBUF - OPO
2 stops16h 10mAmerican Airlines
Sat 9/68:15 amOPO - BUF
3 stops17h 04mAmerican Airlines
Deal found 3/24$3,674

Cheapflights Fare Finder

Customize your flight search to find flights from Buffalo to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 26, 2025.
Use the filters below to find and compare flights from Buffalo to Porto that are best for you.

Fly from

Buffalo

Fly to

Porto

Route

Depart

Return

Price

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 8/21

4:23 pm-9:45 am

1 stop12h 22m

Porto

Sat 9/6

6:00 am-6:21 pm

2 stops17h 21m

$698

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 8/21

6:45 pm-3:55 pm

2 stops16h 10m

Porto

Sat 9/6

8:15 am-8:19 pm

3 stops17h 04m

$3,674

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 4/22

6:45 pm-3:30 pm

2 stops15h 45m

$576

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 4/22

12:44 pm-11:40 am

2 stops17h 56m

$696

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 6/12

9:45 am-10:00 am

2 stops43h 15m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Buffalo to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Porto in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Porto

What is the cheapest time of day to fly from BUF to OPO?

Find hourly flight availability from Buffalo to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

When flying from Buffalo to Porto, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 26% versus a flight at noon.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated March 26, 2025.
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
TAP AIR PORTUGAL
7.1
Good
1,825 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Buffalo to Porto round-trip?

    Our cheapest airline available from Buffalo to Porto is United Airlines. Our recent data shows that you can find tickets from as low as $698 on this airline. An additional option worth looking into is American Airlines, starting at $3,674.

  • What are the cheapest airlines to fly from Buffalo to Porto one-way?

    $576 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and TAP AIR PORTUGAL, with prices starting from $696 and $764, respectively.

  • Can I find deals for flights from Buffalo to Porto that include hotel bookings?

    Yes. In addition to deals on Buffalo to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Porto.

  • Can I find deals for business class flights from Buffalo to Porto?

    Yes. Cheapflights offers flight deals from Buffalo to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Porto?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Porto (average of $523). Flying from Buffalo to Porto in June is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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See prices for flight routes from nearby airports that may be better suited for you.
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