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Cheap flights from Buffalo to Portugal from C$ 640

BUF — LIS
24 Sep — 1 Oct1
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

Mon 2/116:00 a.m. -
1 stop21h 10m
Tue 17/1111:20 a.m. -
3 stops51h 48m
Deal found 23/8C$ 978
Mon 26/106:00 a.m. -
1 stop24h 20m
Wed 4/115:00 a.m. -
2 stops22h 59m
Deal found 20/8C$ 987
Mon 26/101:11 p.m. -
1 stop15h 54m
Wed 4/1111:05 a.m. -
1 stop16h 39m
Deal found 24/8C$ 1,005
Mon 12/107:50 p.m. -
2 stops17h 00m
Thu 22/1011:55 a.m. -
2 stops17h 04m
Deal found 21/8C$ 1,037
Wed 14/103:53 p.m. -
2 stops18h 02m
Tue 20/105:00 a.m. -
2 stops18h 56m
Deal found 24/8C$ 1,038
Sat 7/118:55 p.m. -
1 stop30h 15m
Sun 15/115:00 a.m. -
2 stops23h 44m
Deal found 20/8C$ 1,056

Find flight deals from Buffalo to Portugal

Round-trip from

C$ 978

One-way from

C$ 640

Popular in

January

Cheapest in

February

Average price

C$ 1,997
United Airlines
  • United Airlines
  • 2/11-17/11
  • 4 total stops
  • 72h 58m total
  • Buffalo to Portugal
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British Airways
  • British Airways
  • 22/9
  • 1 total stop
  • 13h 14m total
  • Buffalo to Portugal
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Highest demand for flights based on searches. 19% potential increase in price (C$ 485 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease (C$ 191 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
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 2/11

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

1 stop21h 10m

Lisbon Humberto Delgado

Tue 17/11

11:20 a.m.-10:08 a.m.

3 stops51h 48m

C$ 978

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$ 987

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 26/10

1:11 p.m.-9:05 a.m.

1 stop15h 54m

Lisbon Humberto Delgado

Wed 4/11

11:05 a.m.-10:44 p.m.

1 stop16h 39m

C$ 1,005

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

11:55 a.m.-11:59 p.m.

2 stops17h 04m

C$ 1,037

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Wed 14/10

3:53 p.m.-2:55 p.m.

2 stops18h 02m

Lisbon Humberto Delgado

Tue 20/10

5:00 a.m.-6:56 p.m.

2 stops18h 56m

C$ 1,038
Quickest round-trip

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sun 8/11

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

1 stop11h 07m

Lisbon Humberto Delgado

Mon 16/11

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

1 stop18h 59m

C$ 1,074

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sun 8/11

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

1 stop21h 10m

Lisbon Humberto Delgado

Mon 16/11

11:55 a.m.-10:59 p.m.

2 stops16h 04m

C$ 1,080

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sun 8/11

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

1 stop21h 10m

Lisbon Humberto Delgado

Sun 15/11

10:40 a.m.-9:54 a.m.

2 stops28h 14m

C$ 1,085
Cheapest one-way
Quickest 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$ 640

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 12/10

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

1 stop15h 40m

C$ 640

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/8

Showing 1-10 of 11 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

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

  • 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 21h 10m. United Airlines provides one of the quickest options available for as low as C$ 978. 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.

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.

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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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