HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$376+ Cheap flights from Buffalo (BUF) to Portugal

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Portugal 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 Portugal

Cheapest flights from Buffalo to Portugal
Explore the most affordable flight options available from Buffalo to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This oojo deal was found by Cheapflights users on 12/10. 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.
Sat 12/275:14 pmBUF - LIS
1 stop10h 51mBritish Airways
Fri 3/277:05 amLIS - BUF
2 stops19h 39mBritish Airways
Deal found 12/10$722
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Sat 12/276:00 amBUF - LIS
1 stop22h 05mAmerican Airlines
Fri 3/2711:05 amLIS - BUF
1 stop15h 39mAmerican Airlines
Deal found 12/10$771
This oojo deal was found by Cheapflights users on 12/11. 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.
Mon 12/153:32 pmBUF - LIS
1 stop12h 33mBritish Airways
Mon 12/226:35 pmLIS - BUF
2 stops32h 58mBritish Airways
Deal found 12/11$1,009
This KLM deal was found by Cheapflights users on 12/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:21 amBUF - LIS
1 stop16h 39mKLM
Mon 12/2210:00 amLIS - BUF
1 stop18h 45mKLM
Deal found 12/11$1,087
This Priceline deal was found by Cheapflights users on 12/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/152:50 pmBUF - LIS
2 stops23h 05mMultiple Airlines
Wed 12/176:00 amLIS - BUF
2 stops33h 45mMultiple Airlines
Deal found 12/11$1,545

Find flight deals from Buffalo to Portugal

Keep the following information in mind while searching for Buffalo to Portugal flight deals. Data was last updated December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$492
(KLM)

One-way from

$376
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$1,161
Provider with most accurate pricing for Buffalo-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Lisbon Humberto Delgado flights.
Search Deals
From Buffalo to Portugal
Search Deals
One-way flight from Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($200 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Portugal 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 12, 2025.
Use the filters below to find and compare flights from Buffalo to Portugal that are best for you.

Fly from

Buffalo

Fly to

Portugal

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

9:55 am-11:58 pm

2 stops19h 03m

$492

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 2/5

12:14 pm-10:25 am

2 stops17h 11m

Porto

Tue 2/17

9:55 am-10:57 pm

2 stops18h 02m

$492

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

11:21 am-9:45 pm

2 stops29h 24m

Lisbon Humberto Delgado

Wed 2/11

11:05 am-10:55 pm

1 stop16h 50m

$494

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 2/5

7:00 am-7:40 am

2 stops19h 40m

Porto

Tue 2/17

8:20 am-10:21 pm

2 stops19h 01m

$510

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

7:00 am-4:05 pm

3 stops28h 05m

Lisbon Humberto Delgado

Wed 2/11

7:05 am-12:16 am

2 stops22h 11m

$531

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sun 2/8

1:59 pm-8:10 am

2 stops13h 11m

Lisbon Humberto Delgado

Sun 2/15

5:00 am-9:01 pm

2 stops21h 01m

$577

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 1/8

9:55 am-8:10 am

2 stops17h 15m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-5:40 pm

2 stops17h 40m

$579

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Fri 2/20

3:38 pm-9:00 am

1 stop12h 22m

Lisbon Humberto Delgado

Tue 2/24

10:00 am-11:58 pm

1 stop18h 58m

$581

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 3/12

11:37 am-8:00 am

2 stops16h 23m

Lisbon Humberto Delgado

Sun 3/22

12:20 pm-7:16 pm

2 stops34h 56m

$581

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Fri 2/20

2:54 pm-10:15 am

1 stop14h 21m

Lisbon Humberto Delgado

Tue 2/24

5:00 am-5:50 pm

2 stops17h 50m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 27 results
1
2
3

Best time to book a flight from Buffalo to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, November is the cheapest month in which you can book a flight from Buffalo to Portugal (average of $543). Flying from Buffalo to Portugal in June is currently the most expensive (average of $1,022). 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.

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

Find hourly flight availability from Buffalo to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s optimal to fly from Buffalo to Portugal at noon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with United Airlines and TAP AIR PORTUGAL from Buffalo to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
TAP AIR PORTUGAL
7.1
Good
2,089 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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

  • What airport do you fly from for flights from Buffalo to Portugal?

    Located just 8.3 mi from the city center, Buffalo (BUF) is the airport most travelers will use when flying to Portugal from Buffalo.

  • How long is the flight from Buffalo to Portugal?

    KLM, British Airways, and American Airlines can get you from Buffalo to Portugal in just under 17h 11m. Your travel time can differ by up to 12h 13m. The distance from Buffalo to Portugal is about 3482 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Buffalo to Portugal?

    The most popular flight routes from Buffalo to Portugal are Buffalo - Lisbon Humberto Delgado, Buffalo - Porto and Buffalo - Funchal Madeira.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Portugal 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 Portugal?

    Currently, November is the cheapest month in which you can book a flight from Buffalo to Portugal (average of $543). Flying from Buffalo to Portugal in June is currently the most expensive (average of $1,022). 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

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 Portugal

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Istanbul flights
LaGuardia to Heathrow flights
Newark to Orly flights
John F Kennedy Intl to Gatwick flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Orly flights
Newark to Gatwick flights
John F Kennedy Intl to Madrid flights
LaGuardia to Gatwick flights
LaGuardia to Charles de Gaulle flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Lisbon flights
John F Kennedy Intl to Malpensa flights
Newark to Lisbon flights
Newark to Malpensa flights
John F Kennedy Intl to Dublin flights
Newark to Athens flights
John F Kennedy Intl to Barcelona-El Prat flights
Newark to Madrid flights
Newark to Dublin flights
Newark to Barcelona-El Prat flights
John F Kennedy Intl to Athens flights
John F Kennedy Intl to Luton flights
Newark to Frankfurt flights
John F Kennedy Intl to Amsterdam flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Newark to London City flights
John F Kennedy Intl to Zurich flights
Newark to Amsterdam flights
John F Kennedy Intl to Frankfurt flights
John F Kennedy Intl to Linate flights
Newark to Stansted flights
John F Kennedy Intl to Frederic Chopin flights
John F Kennedy Intl to Geneva flights
Newark to Zurich flights
LaGuardia to Lisbon flights
Newark to Luton flights
Newark to Linate flights
LaGuardia to Istanbul flights
Newark to Istanbul flights
John F Kennedy Intl to Beauvais-Tille flights
John F Kennedy Intl to Keflavik Intl flights
LaGuardia to Madrid flights
LaGuardia to Malpensa flights

Top 2 airlines flying from Buffalo to Portugal

Discover the top 2 airlines that operate flights from Buffalo to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$628Average$876FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$699Average$1,060FlexibilityNo cancel feeOn-timeN/A

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.