HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$647+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — OPO
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 29, 2025.

Round-trip from

$829
(FlightHub)

One-way from

$647
(FlightHub)
From Buffalo to Porto
Search Deals
One-way flight from Buffalo to Porto
Search Deals

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 July 29, 2025.

This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:00 pmBUF - OPO
1 stop11h 45mTAP AIR PORTUGAL
Mon 11/38:00 pmOPO - BUF
2 stops27h 39mTAP AIR PORTUGAL
Deal found 7/27$829
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:59 pmBUF - OPO
2 stops38h 51mTurkish Airlines
Wed 9/244:50 pmOPO - BUF
2 stops27h 07mTurkish Airlines
Deal found 7/28$837
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/97:24 pmBUF - OPO
1 stop9h 21mUnited Airlines
Wed 9/249:35 amOPO - BUF
1 stop11h 20mUnited Airlines
Deal found 7/28$943
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:00 pmBUF - OPO
3 stops19h 20mMultiple Airlines
Fri 9/198:35 amOPO - BUF
3 stops17h 58mMultiple Airlines
Deal found 7/29$2,243

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 July 29, 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

Wed 10/22

6:00 pm-10:45 am

1 stop11h 45m

Porto

Mon 11/3

8:00 pm-6:39 pm

2 stops27h 39m

$829

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 9/9

7:59 pm-3:50 pm

2 stops38h 51m

Porto

Wed 9/24

4:50 pm-2:57 pm

2 stops27h 07m

$837

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 9/9

7:24 pm-9:45 am

1 stop9h 21m

Porto

Wed 9/24

9:35 am-3:55 pm

1 stop11h 20m

$943

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 9/12

8:00 pm-8:20 pm

3 stops19h 20m

Porto

Fri 9/19

8:35 am-9:33 pm

3 stops17h 58m

$2,243

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 8/9

6:15 pm-10:55 am

1 stop11h 40m

$647

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/1

7:10 pm-3:05 pm

2 stops15h 55m

$1,420

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/1

7:02 pm-8:00 am

3 stops56h 58m

$3,840

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 July 29, 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.

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 July 29, 2025.
Read through reviews of airlines operating flights from Buffalo to Porto, such as United Airlines, Turkish Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Turkish Airlines
7.3
Good
3,925 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
TAP AIR PORTUGAL
7.1
Good
1,929 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,265 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as $829 on this airline. Additional options worth looking into are Turkish Airlines and United Airlines, starting at $837 and $943 round-trip.

  • 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 $1,033). 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Buffalo to Porto

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
LaGuardia to Lisbon flights
Newark to Porto flights
John F Kennedy Intl to Porto flights
Newark to Ponta Delgada flights
John F Kennedy Intl to Ponta Delgada flights
LaGuardia to Porto flights
Newark to Funchal flights
John F Kennedy Intl to Funchal flights
Newark to Faro flights
LaGuardia to Funchal flights
John F Kennedy Intl to Faro flights
LaGuardia to Ponta Delgada flights
LaGuardia to Faro flights
John F Kennedy Intl to Vila do Porto flights
Buffalo to Lisbon flights
Stewart to Lisbon flights
White Plains to Lisbon flights
John F Kennedy Intl to Lajes flights
Newark to Porto Santo flights
Newark to Lajes flights
Albany to Lisbon flights
LaGuardia to Lajes flights
Syracuse to Lisbon flights
Syracuse to Porto flights
Rochester to Lisbon flights
Stewart to Faro flights
John F Kennedy Intl to Pico Island flights
Buffalo to Funchal flights
Stewart to Porto flights
Newark to Horta flights
Elmira to Lisbon flights
Rochester to Porto flights
Ithaca to Lisbon flights
Albany to Porto flights
Binghamton to Lisbon flights
Rochester to Ponta Delgada flights
John F Kennedy Intl to Horta flights
Plattsburgh to Lisbon flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.