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Cheap flights from Buffalo to Portugal from C$ 479

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
23 Jul — 30 Jul1
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 23 June 2026.

Tue 20/106:30 a.m.
BUF
-
LIS
1 stop20h 50m
United Airlines
Tue 17/115:00 a.m.
LIS
-
BUF
2 stops23h 21m
United Airlines
Deal found 22/6C$ 996
Sun 1/114:00 p.m.
BUF
-
LIS
1 stop11h 00m
KLM
Wed 18/1111:30 a.m.
LIS
-
BUF
2 stops17h 20m
KLM
Deal found 21/6C$ 999
Mon 9/116:00 a.m.
BUF
-
LIS
1 stop21h 10m
United Airlines
Wed 18/111:00 p.m.
LIS
-
BUF
3 stops49h 54m
United Airlines
Deal found 22/6C$ 1,000
Mon 19/1010:40 a.m.
BUF
-
LIS
2 stops19h 20m
United Airlines
Thu 19/115:00 a.m.
LIS
-
BUF
2 stops23h 21m
United Airlines
Deal found 22/6C$ 1,007
Mon 2/1110:15 a.m.
BUF
-
LIS
2 stops17h 45m
Delta
Fri 20/115:30 a.m.
LIS
-
BUF
2 stops18h 24m
Delta
Deal found 21/6C$ 1,009
Sat 24/107:54 p.m.
BUF
-
LIS
1 stop32h 16m
United Airlines
Fri 20/115:00 a.m.
LIS
-
BUF
2 stops23h 21m
United Airlines
Deal found 22/6C$ 1,012
Wed 21/107:00 a.m.
BUF
-
LIS
1 stop20h 00m
Multiple Airlines
Tue 17/1110:00 a.m.
LIS
-
BUF
1 stop13h 54m
Multiple Airlines
Deal found 22/6C$ 1,013
Mon 19/1010:40 a.m.
BUF
-
LIS
2 stops17h 40m
United Airlines
Fri 20/115:00 a.m.
LIS
-
BUF
2 stops23h 29m
United Airlines
Deal found 22/6C$ 1,016
Sun 25/1010:30 a.m.
BUF
-
LIS
2 stops17h 40m
United Airlines
Wed 18/115:00 a.m.
LIS
-
BUF
2 stops20h 56m
United Airlines
Deal found 22/6C$ 1,017
Wed 28/1010:30 a.m.
BUF
-
LIS
1 stop19h 50m
United Airlines
Thu 19/1110:15 a.m.
LIS
-
BUF
1 stop28h 39m
United Airlines
Deal found 21/6C$ 1,029
Sat 24/1010:40 a.m.
BUF
-
LIS
2 stops44h 20m
Air Canada
Tue 17/1111:20 a.m.
LIS
-
BUF
2 stops27h 09m
Air Canada
Deal found 22/6C$ 1,030

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 23 June 2026.

Round-trip from

C$ 996

One-way from

C$ 479

Popular in

January

Cheapest in

February
United Airlines
  • United Airlines
  • 25/10-17/11
  • 3 total stops
  • 42h 56m total
  • Buffalo to Portugal
Search Deals
Delta
  • Delta
  • 12/10
  • 2 total stops
  • 17h 35m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 493 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 206 potential savings vs. average RT price).
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 23 June 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

Sun 1/11

6:00 a.m.-8:10 a.m.

1 stop21h 10m

Lisbon Humberto Delgado

Thu 19/11

5:00 a.m.-11:21 p.m.

2 stops23h 21m

C$ 996

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 31/10

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

1 stop32h 45m

Lisbon Humberto Delgado

Wed 18/11

5:30 a.m.-6:54 p.m.

2 stops18h 24m

C$ 1,009

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 28/10

7:59 p.m.-10:20 a.m.

1 stop10h 21m

Lisbon Humberto Delgado

Fri 20/11

12:20 p.m.-6:51 p.m.

1 stop11h 31m

C$ 1,029

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 12/10

7:15 p.m.-5:50 p.m.

2 stops17h 35m

Lisbon Humberto Delgado

Thu 22/10

5:00 a.m.-6:54 p.m.

2 stops18h 54m

C$ 1,061

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Fri 30/10

4:00 p.m.-8:00 a.m.

1 stop12h 00m

Lisbon Humberto Delgado

Thu 19/11

5:00 a.m.-6:37 p.m.

2 stops18h 37m

C$ 1,070

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 21/10

7:59 p.m.-10:30 a.m.

1 stop9h 31m

Lisbon Humberto Delgado

Sun 15/11

12:20 p.m.-9:46 a.m.

1 stop26h 26m

C$ 1,084

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 19/10

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

1 stop11h 10m

Lisbon Humberto Delgado

Sat 21/11

10:00 a.m.-6:54 p.m.

1 stop13h 54m

C$ 1,084

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sun 25/10

7:59 p.m.-10:05 a.m.

1 stop10h 06m

Lisbon Humberto Delgado

Sat 21/11

12:20 p.m.-6:51 p.m.

1 stop11h 31m

C$ 1,084

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 22/10

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

1 stop11h 10m

Lisbon Humberto Delgado

Fri 20/11

10:00 a.m.-6:54 p.m.

1 stop13h 54m

C$ 1,084
Quickest round-trip

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 3/11

7:59 p.m.-10:05 a.m.

1 stop9h 06m

Lisbon Humberto Delgado

Mon 16/11

11:55 a.m.-6:51 p.m.

1 stop11h 56m

C$ 1,085

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/6

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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
No data available for this route at this time. Please check back soon.

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 9h 31m. United Airlines provides one of the quickest options available for as low as C$ 996. 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.

See more FAQs

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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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