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Cheap flights from Buffalo to Portugal from C$ 654

BUF — LIS
25 Oct — 1 Nov1
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

Sun 6/1211:24 a.m. -
2 stops16h 31m
Fri 18/1210:00 a.m. -
1 stop19h 15m
Deal found 21/9C$ 799
Wed 9/123:26 p.m. -
2 stops15h 39m
Sun 20/1211:05 a.m. -
1 stop12h 29m
Deal found 21/9C$ 866
Sun 6/1211:24 a.m. -
1 stop15h 36m
Mon 21/1211:15 a.m. -
2 stops16h 55m
Deal found 21/9C$ 870
Wed 9/124:15 p.m. -
2 stops14h 50m
Sun 20/1211:05 a.m. -
2 stops15h 53m
Deal found 21/9C$ 885
Wed 9/123:20 p.m. -
2 stops15h 00m
Sat 19/1211:15 a.m. -
2 stops17h 44m
Deal found 21/9C$ 897
Sun 6/1211:24 a.m. -
2 stops16h 31m
Tue 22/1211:15 a.m. -
2 stops16h 21m
Deal found 21/9C$ 905
Thu 10/1212:06 p.m. -
2 stops15h 49m
Mon 21/1210:00 a.m. -
1 stop18h 10m
Deal found 21/9C$ 940
Mon 26/106:00 a.m. -
1 stop24h 20m
Wed 4/115:00 a.m. -
2 stops33h 54m
Deal found 24/9C$ 1,008
Sat 12/1211:23 a.m. -
1 stop15h 47m
Sat 19/1210:15 a.m. -
2 stops28h 30m
Deal found 21/9C$ 1,010
Sat 5/1211:23 a.m. -
2 stops16h 17m
Tue 22/125:00 a.m. -
2 stops19h 05m
Deal found 21/9C$ 1,012
Sat 7/116:00 a.m. -
1 stop23h 20m
Sat 14/1110:15 a.m. -
1 stop18h 34m
Deal found 23/9C$ 1,025
Wed 7/106:55 p.m. -
2 stops18h 25m
Mon 19/1011:25 a.m. -
2 stops41h 34m
Deal found 24/9C$ 1,391

Find flight deals from Buffalo to Portugal

Round-trip from

C$ 799

One-way from

C$ 654

Popular in

August

Cheapest in

April

Average price

C$ 1,836
Delta
  • Delta
  • 8/12-24/12
  • 2 total stops
  • 47h 21m total
  • Buffalo to Portugal
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United Airlines
  • United Airlines
  • 3/11-31/12
  • 1 total stop
  • 16h 19m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 470 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 80 potential savings vs. average RT price).
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Average for round-trip flights in September 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
Quickest round-trip

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Tue 3/11

10:51 a.m.-8:10 a.m.

1 stop16h 19m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 654

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Wed 25/11

10:51 a.m.-9:30 a.m.

1 stop17h 39m

Porto

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 781

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sun 6/12

12:06 p.m.-8:55 a.m.

2 stops15h 49m

Lisbon Humberto Delgado

Thu 24/12

10:00 a.m.-8:45 p.m.

1 stop15h 45m

C$ 799

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Sat 5/12

7:24 p.m.-8:00 a.m.

1 stop31h 36m

Lisbon Humberto Delgado

Thu 24/12

10:00 a.m.-8:45 p.m.

1 stop15h 45m

C$ 799

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Thu 1/10

11:06 a.m.-8:30 a.m.

2 stops16h 24m

Porto

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 852

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Mon 7/12

2:15 p.m.-9:00 a.m.

2 stops13h 45m

Lisbon Humberto Delgado

Wed 23/12

11:15 a.m.-12:02 a.m.

2 stops17h 47m

C$ 905

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Thu 10/12

11:24 a.m.-8:00 a.m.

1 stop15h 36m

Lisbon Humberto Delgado

Mon 21/12

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

1 stop18h 10m

C$ 940

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Thu 1/10

7:50 p.m.-9:45 a.m.

2 stops32h 55m

Porto

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 942

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Thu 1/10

10:10 a.m.-9:45 a.m.

2 stops18h 35m

Porto

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 970

BuffaloLisbon

BUF Buffalo - LIS Lisbon Humberto Delgado

BUFLIS

Buffalo

Fri 4/12

11:23 a.m.-8:10 a.m.

1 stop15h 47m

Lisbon Humberto Delgado

Tue 22/12

5:00 a.m.-7:05 p.m.

2 stops19h 05m

C$ 1,008

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/9

Showing 1-10 of 18 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 20h. Delta provides one of the quickest options available for as low as C$ 799. 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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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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