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Cheap flights from Buffalo to Portugal from C$ 642

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
17 Sep — 24 Sep1
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 18 August 2026.

Mon 26/106:00 a.m. -
1 stop24h 20m
Wed 4/115:00 a.m. -
2 stops22h 59m
Deal found 17/8C$ 990
Mon 26/101:11 p.m. -
1 stop15h 54m
Wed 4/1111:05 a.m. -
1 stop16h 39m
Deal found 17/8C$ 1,007
Mon 12/107:50 p.m. -
2 stops17h 00m
Thu 22/105:00 a.m. -
2 stops17h 49m
Deal found 14/8C$ 1,040
Mon 16/117:52 p.m. -
1 stop9h 28m
Fri 20/1111:20 a.m. -
2 stops41h 29m
Deal found 17/8C$ 1,066
Sat 26/97:42 p.m. -
1 stop31h 38m
Tue 6/105:05 a.m. -
2 stops23h 45m
Deal found 17/8C$ 1,074
Sun 22/118:55 p.m. -
1 stop30h 15m
Wed 25/1112:25 p.m. -
2 stops26h 17m
Deal found 16/8C$ 1,084

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 18 August 2026.

Round-trip from

C$ 990

One-way from

C$ 642

Popular in

January

Cheapest in

February

Average price

C$ 2,002
United Airlines
  • United Airlines
  • 14/2-25/2
  • 3 total stops
  • 38h 07m total
  • Buffalo to Portugal
Search Deals
British Airways
  • British Airways
  • 22/9
  • 1 total stop
  • 13h 14m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 488 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 192 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 18 August 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 Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 26/10

6:00 a.m.-10:20 a.m.

1 stop24h 20m

Lisbon Humberto Delgado

Wed 4/11

5:00 a.m.-10:59 p.m.

2 stops22h 59m

C$ 990
Quickest round-trip

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 26/10

3:53 p.m.-8:00 a.m.

1 stop12h 07m

Lisbon Humberto Delgado

Wed 4/11

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

1 stop18h 59m

C$ 1,007

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 12/10

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

2 stops17h 00m

Lisbon Humberto Delgado

Thu 22/10

5:00 a.m.-5:49 p.m.

2 stops17h 49m

C$ 1,040

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Thu 14/1

11:40 a.m.-8:10 a.m.

1 stop15h 30m

Lisbon Humberto Delgado

Fri 22/1

11:20 a.m.-8:31 p.m.

2 stops38h 11m

C$ 1,048

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Thu 4/2

11:20 a.m.-8:00 a.m.

1 stop15h 40m

Lisbon Humberto Delgado

Thu 4/3

5:00 a.m.-5:06 p.m.

2 stops17h 06m

C$ 1,062

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 16/11

7:52 p.m.-10:20 a.m.

1 stop9h 28m

Lisbon Humberto Delgado

Fri 20/11

11:20 a.m.-11:49 p.m.

2 stops41h 29m

C$ 1,066
Cheapest one-way

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Tue 22/9

2:51 p.m.-9:05 a.m.

1 stop13h 14m

C$ 642

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sun 11/10

2:10 p.m.-8:00 a.m.

1 stop12h 50m

C$ 642

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Wed 14/10

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

2 stops20h 20m

C$ 642

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sat 10/10

7:42 p.m.-9:20 a.m.

2 stops32h 38m

C$ 647

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/8

Showing 1-10 of 15 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

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 17h. United Airlines provides one of the quickest options available for as low as C$ 1,040. 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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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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