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Cheap flights from Buffalo to Portugal from C$ 532

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
17 May — 24 May1
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 17 April 2026.

Mon 26/104:00 p.m.
BUF
-
LIS
2 stops14h 15m
United Airlines
Sun 15/115:00 a.m.
LIS
-
BUF
2 stops17h 59m
United Airlines
Deal found 16/4C$ 970
Tue 10/112:44 p.m.
BUF
-
LIS
1 stop14h 31m
United Airlines
Tue 17/111:00 p.m.
LIS
-
BUF
2 stops31h 16m
United Airlines
Deal found 12/4C$ 977
Tue 27/101:00 p.m.
BUF
-
LIS
2 stops16h 00m
Delta
Mon 16/115:30 a.m.
LIS
-
BUF
2 stops23h 20m
Delta
Deal found 16/4C$ 982
Tue 27/101:15 p.m.
BUF
-
LIS
1 stop14h 45m
Delta
Fri 13/115:00 a.m.
LIS
-
BUF
2 stops18h 54m
Delta
Deal found 16/4C$ 983
Tue 27/107:30 p.m.
BUF
-
LIS
1 stop10h 45m
United Airlines
Sat 14/1111:55 a.m.
LIS
-
BUF
1 stop11h 31m
United Airlines
Deal found 16/4C$ 986
Sun 25/102:44 p.m.
BUF
-
LIS
2 stops13h 26m
United Airlines
Tue 17/115:00 a.m.
LIS
-
BUF
2 stops20h 31m
United Airlines
Deal found 16/4C$ 988
Mon 26/1012:50 p.m.
BUF
-
LIS
2 stops18h 30m
Delta
Fri 13/115:00 a.m.
LIS
-
BUF
2 stops18h 54m
Delta
Deal found 16/4C$ 990
Mon 26/104:00 p.m.
BUF
-
LIS
2 stops15h 20m
Air France
Sat 14/1111:15 a.m.
LIS
-
BUF
2 stops16h 50m
Air France
Deal found 16/4C$ 993
Tue 10/117:00 a.m.
BUF
-
LIS
1 stop20h 00m
Virgin Atlantic
Tue 17/1110:00 a.m.
LIS
-
BUF
1 stop13h 54m
Virgin Atlantic
Deal found 12/4C$ 997
Sun 25/106:45 p.m.
BUF
-
LIS
1 stop9h 25m
United Airlines
Mon 16/1111:55 a.m.
LIS
-
BUF
1 stop26h 52m
United Airlines
Deal found 16/4C$ 999
Sat 24/107:00 a.m.
BUF
-
LIS
2 stops24h 00m
Air Canada
Tue 17/1111:20 a.m.
LIS
-
BUF
2 stops51h 29m
Air Canada
Deal found 16/4C$ 1,003
Sat 24/1011:15 a.m.
BUF
-
LIS
2 stops17h 45m
Delta
Sun 15/1111:15 a.m.
LIS
-
BUF
2 stops16h 43m
Delta
Deal found 16/4C$ 1,004

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 17 April 2026.

Round-trip from

C$ 1,108

One-way from

C$ 532

Popular in

June

Cheapest in

February

Average price

C$ 902
KLM
  • KLM
  • 5/5-12/5
  • 3 total stops
  • 38h 51m total
  • Buffalo to Portugal
Search Deals
American Airlines
  • American Airlines
  • 12/10
  • 2 total stops
  • 14h 29m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 643 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (C$ 167 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 17 April 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

Tue 5/5

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

1 stop20h 00m

Lisbon Humberto Delgado

Tue 12/5

5:00 a.m.-6:51 p.m.

2 stops18h 51m

C$ 1,108

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

7:25 p.m.-5:50 p.m.

2 stops17h 25m

Lisbon Humberto Delgado

Thu 22/10

5:00 a.m.-6:58 p.m.

2 stops18h 58m

C$ 1,159

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 12/5

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

1 stop20h 00m

Lisbon Humberto Delgado

Tue 19/5

5:00 a.m.-6:51 p.m.

2 stops18h 51m

C$ 1,202

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 11/5

2:47 p.m.-10:45 a.m.

2 stops14h 58m

Lisbon Humberto Delgado

Fri 22/5

11:55 a.m.-12:19 a.m.

2 stops17h 24m

C$ 1,208
Quickest round-trip

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

10:20 a.m.-10:30 a.m.

1 stop19h 10m

Lisbon Humberto Delgado

Thu 22/10

10:25 a.m.-6:22 p.m.

1 stop12h 57m

C$ 1,215
Cheapest one-way

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

5:26 p.m.-12:55 p.m.

2 stops14h 29m

C$ 532

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

7:15 p.m.-8:00 a.m.

1 stop31h 45m

C$ 557

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

2:44 p.m.-10:30 a.m.

1 stop14h 46m

C$ 586

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

3:10 p.m.-11:25 p.m.

3 stops27h 15m

C$ 727
Quickest one-way

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 22/4

3:55 p.m.-9:05 a.m.

1 stop12h 10m

C$ 919

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

Showing 1-10 of 13 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, October is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 693). Flying from Buffalo to Portugal in June is currently the most expensive (average of C$ 1,623). 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 20h. KLM provides one of the quickest options available for as low as C$ 1,108. The distance from Buffalo to Portugal is about 5697 km.

  • 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, October is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 693). Flying from Buffalo to Portugal in June is currently the most expensive (average of C$ 1,623). 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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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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