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Cheap flights from Buffalo to Portugal from C$ 856

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Portugal

Enter your travel dates to find the best prices.

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 22 March 2026.

Sun 6/124:00 p.m.
BUF
-
LIS
1 stop11h 10m
United Airlines
Thu 10/125:00 a.m.
LIS
-
BUF
2 stops18h 26m
United Airlines
Deal found 19/3C$ 997
Sat 18/410:50 a.m.
BUF
-
LIS
2 stops18h 45m
United Airlines
Tue 28/45:05 a.m.
LIS
-
BUF
2 stops17h 11m
United Airlines
Deal found 20/3C$ 1,037
Mon 13/48:59 p.m.
BUF
-
LIS
2 stops37h 41m
Turkish Airlines
Tue 28/45:05 p.m.
LIS
-
BUF
2 stops26h 54m
Turkish Airlines
Deal found 17/3C$ 1,048
Sat 18/410:44 a.m.
BUF
-
LIS
1 stop17h 21m
British Airways
Tue 28/47:10 a.m.
LIS
-
BUF
2 stops19h 26m
British Airways
Deal found 17/3C$ 1,055
Sat 17/102:46 p.m.
BUF
-
LIS
1 stop13h 19m
Multiple Airlines
Wed 21/106:35 a.m.
LIS
-
BUF
2 stops18h 34m
Multiple Airlines
Deal found 20/3C$ 1,088
Sat 17/107:15 p.m.
BUF
-
LIS
2 stops17h 35m
Delta
Wed 21/109:50 a.m.
LIS
-
BUF
2 stops18h 15m
Delta
Deal found 20/3C$ 1,089

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 22 March 2026.

Round-trip from

C$ 1,037

One-way from

C$ 856

Popular in

June

Cheapest in

February

Average price

C$ 1,231
United Airlines
  • United Airlines
  • 18/4-28/4
  • 4 total stops
  • 35h 56m total
  • Buffalo to Portugal
Search Deals
United Airlines
  • United Airlines
  • 10/5
  • 2 total stops
  • 16h 45m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 344 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 77 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 629,999 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from Buffalo to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 13/4

8:59 p.m.-3:40 p.m.

2 stops37h 41m

Lisbon Humberto Delgado

Tue 28/4

5:05 p.m.-2:59 p.m.

2 stops26h 54m

C$ 1,048

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 18/4

10:44 a.m.-9:05 a.m.

1 stop17h 21m

Lisbon Humberto Delgado

Tue 28/4

7:10 a.m.-9:36 p.m.

2 stops19h 26m

C$ 1,055

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 4/5

6:10 a.m.-8:20 a.m.

2 stops21h 10m

Lisbon Humberto Delgado

Mon 11/5

11:25 a.m.-9:01 p.m.

2 stops38h 36m

C$ 1,099

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 18/4

7:59 p.m.-8:00 a.m.

1 stop31h 01m

Lisbon Humberto Delgado

Tue 28/4

10:00 a.m.-12:50 a.m.

1 stop19h 50m

C$ 1,122
Quickest round-trip

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 13/4

7:00 a.m.-8:00 a.m.

1 stop20h 00m

Lisbon Humberto Delgado

Tue 28/4

10:00 a.m.-7:19 p.m.

1 stop14h 19m

C$ 1,217

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 1/7

7:00 a.m.-8:20 a.m.

2 stops20h 20m

Lisbon Humberto Delgado

Wed 8/7

10:25 a.m.-11:59 p.m.

2 stops18h 34m

C$ 1,571

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 20/6

7:52 p.m.-11:00 a.m.

2 stops34h 08m

Lisbon Humberto Delgado

Tue 30/6

5:05 a.m.-7:03 p.m.

2 stops18h 58m

C$ 1,638

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Fri 19/6

7:57 p.m.-6:45 p.m.

2 stops17h 48m

Lisbon Humberto Delgado

Mon 22/6

10:00 a.m.-12:38 a.m.

1 stop19h 38m

C$ 1,671

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 3/9

11:15 a.m.-3:45 p.m.

3 stops23h 30m

Lisbon Humberto Delgado

Thu 10/9

7:00 a.m.-11:56 p.m.

2 stops21h 56m

C$ 1,680
Cheapest one-way

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sun 10/5

10:35 a.m.-8:20 a.m.

2 stops16h 45m

C$ 856

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

Showing 1-10 of 20 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 716). Flying from Buffalo to Portugal in June is currently the most expensive (average of C$ 1,392). 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.

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 17h 21m. Turkish Airlines provides one of the quickest options available for as low as C$ 1,055. 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, February is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 716). Flying from Buffalo to Portugal in June is currently the most expensive (average of C$ 1,392). 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

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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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