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$492+ Cheap flights from Buffalo (BUF) to Porto (OPO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — OPO
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Buffalo to Porto

Best flights from Buffalo to Porto
Discover carefully curated flight deals from Buffalo to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

This Air France deal was found by Cheapflights users on 12/12. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:51 amBUF - OPO
2 stops17h 34mMultiple Airlines
Tue 2/175:00 amOPO - BUF
2 stops16h 59mMultiple Airlines
Deal found 12/12$492
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Fri 1/309:55 amBUF - OPO
2 stops20h 45mUnited Airlines
Tue 2/36:00 amOPO - BUF
2 stops39h 44mUnited Airlines
Deal found 12/12$605
This Expedia deal was found by Cheapflights users on 12/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/112:49 pmBUF - OPO
2 stops16h 16mMultiple Airlines
Sun 1/186:00 amOPO - BUF
2 stops42h 25mMultiple Airlines
Deal found 12/12$494
This Air Canada deal was found by Cheapflights users on 12/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/111:59 pmBUF - OPO
3 stops18h 01mAir Canada
Sun 1/186:55 amOPO - BUF
3 stops18h 34mAir Canada
Deal found 12/12$2,786

Find 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 December 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$492
(Air France)
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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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 December 14, 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 2/5

11:51 am-10:25 am

2 stops17h 34m

Porto

Tue 2/17

5:00 am-4:59 pm

2 stops16h 59m

$492

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 1/11

2:49 pm-12:05 pm

2 stops16h 16m

Porto

Sun 1/18

6:00 am-7:25 pm

2 stops42h 25m

$494

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 1/30

9:55 am-11:40 am

2 stops20h 45m

Porto

Tue 2/3

6:00 am-4:44 pm

2 stops39h 44m

$605

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 1/11

1:59 pm-1:00 pm

3 stops18h 01m

Porto

Sun 1/18

6:55 am-8:29 pm

3 stops18h 34m

$2,786

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

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 December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 AranGrant the most. AranGrant 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 December 14, 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 at noon, which can drop the price by up to 59% versus a flight in the evening.

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.

  • How long is the flight from Buffalo to Porto?

    For as low as $605, United Airlines can have you in Porto from Buffalo in 20h 45m. Buffalo and Porto are separated by a distance of 3482 mi.

  • 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.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra
Vila Nova de Gaia

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