Portugal

$347+ Cheap flights from Buffalo (BUF) to Portugal

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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
Mar 14 — Mar 211
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Cheap flight deals from Buffalo to Portugal

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 February 12, 2026.

This oojo deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:44 am
BUF
-
LIS
2 stops31h 26m
British Airways
Thu 4/306:45 pm
LIS
-
BUF
2 stops31h 51m
British Airways
Deal found 2/10$509
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:07 am
BUF
-
LIS
1 stop23h 08m
United Airlines
Wed 3/1111:20 am
LIS
-
BUF
2 stops37h 26m
United Airlines
Deal found 2/10$541
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/411:52 am
BUF
-
LIS
2 stops17h 43m
Delta
Wed 3/1111:25 am
LIS
-
BUF
2 stops16h 49m
Delta
Deal found 2/9$552
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
BUF
-
LIS
1 stop20h 00m
Delta
Wed 4/295:35 am
LIS
-
BUF
2 stops18h 16m
Delta
Deal found 2/10$554
This oojo deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:44 am
BUF
-
LIS
2 stops31h 26m
British Airways
Tue 4/286:45 pm
LIS
-
BUF
2 stops31h 51m
British Airways
Deal found 2/10$559
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:45 pm
BUF
-
LIS
1 stop9h 45m
United Airlines
Thu 4/305:05 am
LIS
-
BUF
2 stops18h 15m
United Airlines
Deal found 2/10$583
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:50 pm
BUF
-
LIS
2 stops36h 10m
United Airlines
Thu 10/225:05 am
LIS
-
BUF
2 stops23h 21m
United Airlines
Deal found 2/9$585
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:25 pm
BUF
-
OPO
1 stop10h 05m
United Airlines
Sun 3/16:00 am
OPO
-
BUF
2 stops19h 51m
United Airlines
Deal found 2/8$668
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:34 am
BUF
-
FNC
2 stops25h 36m
TAP AIR PORTUGAL
Tue 2/249:15 pm
FNC
-
BUF
2 stops41h 20m
TAP AIR PORTUGAL
Deal found 2/9$1,018
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1311:37 am
BUF
-
OPO
2 stops18h 53m
Delta
Fri 3/2011:20 am
OPO
-
BUF
2 stops16h 54m
Delta
Deal found 2/11$1,121
This KAYAK deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:30 pm
BUF
-
OPO
2 stops24h 10m
Lufthansa
Fri 3/2012:45 pm
OPO
-
BUF
1 stop15h 11m
Lufthansa
Deal found 2/11$1,157
This oojo deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/272:28 pm
BUF
-
FNC
2 stops16h 37m
Multiple Airlines
Fri 4/32:40 pm
FNC
-
BUF
2 stops22h 26m
Multiple Airlines
Deal found 2/10$1,577

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$509
(oojo)

One-way from

$347
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$640
Provider with most accurate pricing for Buffalo-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Buffalo-Lisbon Humberto Delgado flights.
From Buffalo to Portugal
One-way flight from Buffalo to Portugal
Highest demand for flights based on searches. 15% potential increase in price ($169 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 2,558,603 searches. Data last updated February 12, 2026.
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 4/20

10:44 am-11:10 pm

2 stops31h 26m

Lisbon Humberto Delgado

Wed 4/29

7:20 am-9:36 pm

2 stops19h 16m

$509

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 3/4

6:07 am-10:15 am

1 stop23h 08m

Lisbon Humberto Delgado

Wed 3/11

11:20 am-8:46 pm

2 stops37h 26m

$541

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 3/4

11:52 am-10:35 am

2 stops17h 43m

Lisbon Humberto Delgado

Wed 3/11

11:25 am-12:14 am

2 stops16h 49m

$552

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 4/20

7:00 am-8:00 am

1 stop20h 00m

Lisbon Humberto Delgado

Wed 4/29

5:35 am-6:51 pm

2 stops18h 16m

$554

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 4/23

10:44 am-11:05 pm

2 stops31h 21m

Lisbon Humberto Delgado

Tue 4/28

6:45 pm-11:19 pm

2 stops33h 34m

$559

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

6:00 am-8:51 pm

2 stops19h 51m

$668

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/13

6:00 am-9:30 am

1 stop23h 30m

Porto

Fri 3/20

12:45 pm-11:56 pm

1 stop15h 11m

$1,324

BuffaloFunchal

BUF - FNC

BUFFNC

Buffalo

Fri 3/27

2:28 pm-11:05 am

2 stops16h 37m

Funchal Madeira

Fri 4/3

2:40 pm-8:06 am

2 stops22h 26m

$1,577

BuffaloFunchal

BUF - FNC

BUFFNC

Buffalo

Fri 3/27

1:52 pm-1:30 pm

3 stops19h 38m

Funchal Madeira

Fri 4/3

9:25 am-10:11 am

3 stops29h 46m

$3,698

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 5/18

11:25 am-8:45 pm

3 stops52h 20m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 24 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, February is the cheapest month in which you can book a flight from Buffalo to Portugal (average of $522). Flying from Buffalo to Portugal in June is currently the most expensive (average of $1,015). 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.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated February 12, 2026.
Peruse reviews from past customers who have flown with United Airlines and TAP AIR PORTUGAL from Buffalo to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.6

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Food

6.6

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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?

    Located just 8.3 mi from the city center, Buffalo (BUF) is the airport most travelers will use when flying to Portugal from Buffalo.

  • How long is the flight from Buffalo to Portugal?

    British Airways, United Airlines, and Delta can get you from Buffalo to Portugal in just under 17h 43m. Your travel time can differ by up to 13h 43m. The distance from Buffalo to Portugal is about 3540 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Buffalo to Portugal?

  • 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, February is the cheapest month in which you can book a flight from Buffalo to Portugal (average of $522). Flying from Buffalo to Portugal in June is currently the most expensive (average of $1,015). 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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Alternative routes for Buffalo to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Buffalo to Portugal

Discover the top 2 airlines that operate flights from Buffalo to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$628Average$863FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$699Average$964FlexibilityNo cancel feeOn-timeN/A

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