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Cheap flights from Buffalo to Portugal from C$ 555

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
19 Nov — 26 Nov1
1 adult
1 adult, Economy

Find 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 20 October 2025.

Mon 10/1111:45 a.m.BUF - LIS
1 stop15h 25mUnited Airlines
Wed 26/115:00 a.m.LIS - BUF
2 stops33h 59mUnited Airlines
Deal found 20/10C$ 737
Tue 18/116:00 a.m.BUF - LIS
2 stops22h 20mUnited Airlines
Tue 25/115:00 a.m.LIS - BUF
2 stops18h 47mUnited Airlines
Deal found 20/10C$ 750
Wed 3/123:00 p.m.BUF - LIS
1 stop14h 15mUnited Airlines
Wed 10/1211:55 a.m.LIS - BUF
1 stop12h 09mUnited Airlines
Deal found 19/10C$ 770
Mon 1/1212:15 p.m.BUF - LIS
1 stop14h 55mMultiple Airlines
Mon 8/1211:20 a.m.LIS - BUF
2 stops38h 55mMultiple Airlines
Deal found 19/10C$ 816
Thu 4/1210:10 a.m.BUF - LIS
1 stop19h 05mUnited Airlines
Thu 11/125:00 a.m.LIS - BUF
2 stops33h 48mUnited Airlines
Deal found 19/10C$ 820
Mon 1/125:40 p.m.BUF - LIS
2 stops34h 40mUnited Airlines
Mon 8/1211:20 a.m.LIS - BUF
2 stops32h 02mUnited Airlines
Deal found 19/10C$ 824
Sun 30/113:45 p.m.BUF - LIS
1 stop12h 10mKLM
Sun 14/1211:25 a.m.LIS - BUF
2 stops17h 51mKLM
Deal found 18/10C$ 827
Tue 18/1111:19 a.m.BUF - LIS
1 stop16h 41mDelta
Tue 25/1110:00 a.m.LIS - BUF
1 stop18h 59mDelta
Deal found 20/10C$ 918

Cheap flight deals from Buffalo to Portugal

Keep the following information in mind while searching for Buffalo to Portugal flight deals. Data was last updated 20 October 2025.

Round-trip from

C$ 737

One-way from

C$ 555

Popular in

December

Cheapest in

February

Average price

C$ 1,159
United Airlines
  • United Airlines
  • 10/11-26/11
  • 3 total stops
  • 49h 24m total
  • Buffalo to Portugal
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 4/12
  • 1 total stop
  • 18h 47m total
  • Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 95 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 20 October 2025.
Use the filters below to find and compare flights from Buffalo to Portugal that are best for you.

Fly from

Buffalo

Fly to

Portugal

Route

Depart

Return

Price

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 10/11

11:45 a.m.-8:10 a.m.

1 stop15h 25m

Lisbon Humberto Delgado

Wed 26/11

5:00 a.m.-9:59 a.m.

2 stops33h 59m

C$ 737

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 10/2

2:49 p.m.-8:10 a.m.

2 stops12h 21m

Lisbon Humberto Delgado

Tue 24/2

5:00 a.m.-5:50 p.m.

2 stops17h 50m

C$ 739

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 3/2

11:15 a.m.-4:05 p.m.

3 stops23h 50m

Lisbon Humberto Delgado

Wed 11/2

7:05 a.m.-11:49 p.m.

2 stops21h 44m

C$ 744

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 10/2

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

1 stop11h 10m

Lisbon Humberto Delgado

Tue 24/2

5:00 a.m.-5:07 p.m.

2 stops17h 07m

C$ 744

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 12/3

11:15 a.m.-4:05 p.m.

2 stops24h 50m

Lisbon Humberto Delgado

Sun 22/3

4:55 p.m.-11:49 p.m.

2 stops34h 54m

C$ 744

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 18/11

6:00 a.m.-9:20 a.m.

2 stops22h 20m

Lisbon Humberto Delgado

Tue 25/11

5:00 a.m.-6:47 p.m.

2 stops18h 47m

C$ 750

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 3/12

3:00 p.m.-10:15 a.m.

1 stop14h 15m

Lisbon Humberto Delgado

Wed 10/12

5:00 a.m.-9:15 p.m.

2 stops21h 15m

C$ 750

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 3/2

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

1 stop11h 10m

Lisbon Humberto Delgado

Wed 11/2

11:25 a.m.-11:49 p.m.

2 stops17h 24m

C$ 757

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 4/12

10:08 a.m.-9:55 a.m.

1 stop18h 47m

C$ 555

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 6/12

6:05 a.m.-5:35 a.m.

1 stop18h 30m

C$ 555

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/10

Showing 1-10 of 14 results
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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, November is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 768). Flying from Buffalo to Portugal in June is currently the most expensive (average of C$ 1,413). 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.

What is the cheapest time of day to fly from BUF to PT?

Find hourly flight availability from Buffalo to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 October 2025.

It’s typically best to fly out from Buffalo to Portugal at noon. Doing so could potentially save you 50% on the flight price compared to flying in the morning, which is usually more expensive.

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 15h 25m. United Airlines provides one of the quickest options available for as low as C$ 737. 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.

  • What is the cheapest month to book a flight from Buffalo to Portugal?

    Currently, November is the cheapest month in which you can book a flight from Buffalo to Portugal (average of C$ 768). Flying from Buffalo to Portugal in June is currently the most expensive (average of C$ 1,413). 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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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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