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Cheap flights from Buffalo to Portugal from C$ 714

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Buffalo to Portugal

Keep the following information in mind while searching for Buffalo to Portugal flight deals. Data was last updated 16 September 2025.

Round-trip from

C$ 714

Popular in

December

Cheapest in

February

Average price

C$ 1,463
KLM
  • KLM
  • 18/11-26/11
  • 2 total stops
  • 31h 00m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 107 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 16 September 2025.

Tue 18/116:00 a.m.BUF - LIS
2 stops22h 20mUnited Airlines
Wed 26/1111:55 a.m.LIS - BUF
1 stop11h 51mUnited Airlines
Deal found 15/9C$ 714
Thu 30/1010:37 a.m.BUF - LIS
1 stop19h 38mUnited Airlines
Thu 6/1110:15 a.m.LIS - BUF
1 stop13h 20mUnited Airlines
Deal found 15/9C$ 826
Wed 19/117:00 a.m.BUF - LIS
2 stops23h 35mUnited Airlines
Sun 23/115:00 a.m.LIS - BUF
2 stops34h 03mUnited Airlines
Deal found 15/9C$ 854
Wed 15/107:30 p.m.BUF - LIS
2 stops14h 20mDelta
Wed 22/105:00 a.m.LIS - BUF
2 stops18h 50mDelta
Deal found 15/9C$ 868
Thu 30/107:30 p.m.BUF - LIS
2 stops15h 40mDelta
Thu 6/1110:00 a.m.LIS - BUF
2 stops17h 52mDelta
Deal found 15/9C$ 890
Tue 18/117:00 a.m.BUF - LIS
3 stops28h 05mScandinavian Airlines
Wed 26/117:05 a.m.LIS - BUF
2 stops21h 54mScandinavian Airlines
Deal found 13/9C$ 901
Tue 30/93:51 p.m.BUF - LIS
2 stops17h 59mDelta
Tue 7/109:50 a.m.LIS - BUF
2 stops19h 06mDelta
Deal found 16/9C$ 944
Wed 19/1112:30 p.m.BUF - LIS
1 stop12h 05mTAP AIR PORTUGAL
Tue 2/1211:50 a.m.LIS - BUF
1 stop14h 40mTAP AIR PORTUGAL
Deal found 14/9C$ 973

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 629,999 searches. Data last updated 16 September 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

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 18/11

11:19 a.m.-9:00 a.m.

1 stop16h 41m

Lisbon Humberto Delgado

Wed 26/11

10:00 a.m.-11:59 p.m.

1 stop18h 59m

C$ 714

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 18/11

6:00 a.m.-9:20 a.m.

2 stops22h 20m

Lisbon Humberto Delgado

Wed 26/11

11:55 a.m.-6:46 p.m.

1 stop11h 51m

C$ 714

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 9/2

11:15 a.m.-9:30 p.m.

2 stops29h 15m

Lisbon Humberto Delgado

Mon 16/2

6:45 a.m.-11:57 p.m.

2 stops22h 12m

C$ 728

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 9/2

3:50 p.m.-8:00 a.m.

1 stop11h 10m

Lisbon Humberto Delgado

Mon 16/2

10:00 a.m.-11:49 p.m.

1 stop18h 49m

C$ 783

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 10/1

6:20 p.m.-9:20 a.m.

2 stops34h 00m

Lisbon Humberto Delgado

Sat 17/1

12:20 p.m.-7:25 p.m.

2 stops36h 05m

C$ 810

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 30/10

10:37 a.m.-10:15 a.m.

1 stop19h 38m

Lisbon Humberto Delgado

Thu 6/11

10:15 a.m.-6:35 p.m.

1 stop13h 20m

C$ 826

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Fri 20/2

10:10 a.m.-10:15 a.m.

1 stop19h 05m

Lisbon Humberto Delgado

Sun 1/3

10:15 a.m.-5:45 p.m.

1 stop12h 30m

C$ 852

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 30/10

7:30 p.m.-3:10 p.m.

2 stops15h 40m

Lisbon Humberto Delgado

Thu 6/11

10:00 a.m.-10:52 p.m.

2 stops17h 52m

C$ 890

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/9

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, January is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 482). Flying from Buffalo to Portugal in July is currently the most expensive (average of C$ 778). 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 16 September 2025.

When flying from Buffalo to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 16 September 2025.
Get a feel of what it's like to fly with United Airlines from Buffalo to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

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
8,924 reviews
United Airlines
7.4
Good
8,924 reviews
Check prices

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

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 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?

    Buffalo (BUF) is the airport you will fly out of if you book a flight from Buffalo to Portugal. It is only a 13.4 km journey to Buffalo (BUF) from Buffalo’s city centre.

  • How long is the flight from Buffalo to Portugal?

    A quick flight from Buffalo to Portugal can take about 16h 41m. KLM provides one of the quickest options available for as low as C$ 714. The distance from Buffalo to Portugal is about 5697 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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, January is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 482). Flying from Buffalo to Portugal in July is currently the most expensive (average of C$ 778). 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

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Top airline flying from Buffalo to Portugal

Discover the top airline 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 629,999 searches. Data last updated 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 767AverageC$ 975FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Buffalo to Portugal?

Cheapflights makes it easy to find Buffalo to Portugal flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Portugal?

Millions of users choose and trust Cheapflights to book the best flight deals from Buffalo to Portugal for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Buffalo to Portugal with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Buffalo to Portugal, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Buffalo to Portugal become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portugal from Buffalo today and book when prices fit your budget.

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