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Portugal

$493+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
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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 9, 2026.

This United Airlines deal was found by Cheapflights users on 2/7. 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
Wed 4/295:05 am
LIS
-
BUF
2 stops18h 44m
United Airlines
Deal found 2/7$496
This Air France deal was found by Cheapflights users on 2/7. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:50 pm
BUF
-
LIS
2 stops14h 10m
Air France
Wed 4/295:35 am
LIS
-
BUF
2 stops17h 56m
Air France
Deal found 2/7$509
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Tue 3/241:52 pm
BUF
-
OPO
2 stops15h 38m
United Airlines
Tue 3/316:00 am
OPO
-
BUF
2 stops22h 50m
United Airlines
Deal found 2/7$528
This Iberia deal was found by Cheapflights users on 2/7. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:31 pm
BUF
-
LIS
2 stops21h 14m
Multiple Airlines
Tue 3/108:20 am
LIS
-
BUF
2 stops19h 20m
Multiple Airlines
Deal found 2/7$543
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Tue 3/310:00 am
BUF
-
LIS
1 stop19h 15m
United Airlines
Tue 3/105:00 am
LIS
-
BUF
2 stops41h 42m
United Airlines
Deal found 2/7$544
This American Airlines deal was found by Cheapflights users on 2/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:23 am
BUF
-
LIS
1 stop16h 42m
American Airlines
Tue 3/1011:05 am
LIS
-
BUF
1 stop15h 40m
American Airlines
Deal found 2/7$551
This Delta 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 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 2/8$552
This United Airlines deal was found by Cheapflights users on 2/7. 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 3/41:52 pm
BUF
-
LIS
2 stops13h 18m
United Airlines
Wed 3/1111:55 am
LIS
-
BUF
1 stop15h 47m
United Airlines
Deal found 2/7$555
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:31 am
BUF
-
LIS
2 stops25h 54m
Iberia
Tue 4/288:25 am
LIS
-
BUF
2 stops18h 11m
Iberia
Deal found 2/8$558
This KAYAK deal was found by Cheapflights users on 2/7. 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.
Mon 4/207:45 pm
BUF
-
LIS
1 stop9h 45m
Lufthansa
Wed 4/2910:25 am
LIS
-
BUF
1 stop18h 08m
Lufthansa
Deal found 2/7$559
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 Iberia deal was found by Cheapflights users on 2/7. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:36 am
BUF
-
LIS
2 stops19h 14m
Multiple Airlines
Tue 4/287:10 am
LIS
-
BUF
2 stops19h 26m
Multiple Airlines
Deal found 2/7$586

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 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$496
(United Airlines)

One-way from

$493
(Iberia)

Popular in

June

Cheapest in

February

Average price

$640
Provider with most accurate pricing for Buffalo-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Lisbon Humberto Delgado flights.
Search Deals
From Buffalo to Portugal
Search Deals
One-way flight from Buffalo to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 2,558,603 searches. Data last updated February 9, 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

7:45 pm-10:30 am

1 stop9h 45m

Lisbon Humberto Delgado

Wed 4/29

5:05 am-6:49 pm

2 stops18h 44m

$496

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 4/20

12:50 pm-8:00 am

2 stops14h 10m

Lisbon Humberto Delgado

Wed 4/29

5:35 am-6:31 pm

2 stops17h 56m

$509

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 3/24

1:52 pm-9:30 am

2 stops15h 38m

Porto

Tue 3/31

6:00 am-11:50 pm

2 stops22h 50m

$528

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 3/3

12:31 pm-2:45 pm

2 stops21h 14m

Lisbon Humberto Delgado

Tue 3/10

8:20 am-11:40 pm

2 stops19h 20m

$543

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 3/4

7:00 am-8:10 am

2 stops20h 10m

Lisbon Humberto Delgado

Wed 3/11

5:00 am-11:42 pm

2 stops22h 42m

$543

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

7:45 pm-10:30 am

1 stop9h 45m

Lisbon Humberto Delgado

Wed 4/29

10:25 am-11:33 pm

1 stop18h 08m

$559

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 3/23

3:56 pm-10:35 am

2 stops14h 39m

Lisbon Humberto Delgado

Mon 3/30

12:15 pm-12:14 am

2 stops16h 59m

$587

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 2/25

10:00 am-10:15 am

1 stop19h 15m

Lisbon Humberto Delgado

Sun 3/1

5:00 am-7:06 pm

2 stops19h 06m

$589

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 3/25

7:56 pm-3:25 pm

2 stops15h 29m

Porto

Wed 4/1

5:00 am-5:09 pm

2 stops17h 09m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 18 results
1
2

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 9, 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.
United Airlines
7.4
Good
9,259 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

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
United Airlines
7.4
Good
9,259 reviews
United Airlines
7.4
Good
9,259 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

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
TAP AIR PORTUGAL
7.1
Good
2,135 reviews
United Airlines
7.4
Good
9,259 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

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?

    United Airlines, Air France, and KLM can get you from Buffalo to Portugal in just under 9h 45m. Your travel time can differ by up to 5h 44m. 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?

    The most popular flight routes from Buffalo to Portugal are Buffalo - Lisbon Humberto Delgado, Buffalo - Porto and Buffalo - Funchal Madeira.

  • 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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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 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$628Average$863FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$699Average$964FlexibilityNo cancel feeOn-timeN/A

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