What is the cheapest airline that flies from Buffalo to Portugal?

American Airlines and TAP AIR PORTUGAL are the most popular carriers operating from Buffalo to Portugal

What airlines fly to Portugal?

United Airlines, American Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Portugal from Buffalo according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 4 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Buffalo Airport to Portugal?

Prices for flights from Buffalo Airport to Portugal were last updated today.

How many operators does momondo search for flights from Buffalo Airport to Portugal?

As of December 2025, there are 2 operators available to choose from for flights from Buffalo Airport to Portugal.

How old do you have to be to fly from Buffalo Airport to Portugal?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$376 Cheap Flights from Buffalo to Portugal in 2025/26

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Find the cheapest flights from Buffalo to Portugal

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Cheap round-trip flights

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11:51 am - 10:25 am

BUF

OPO

17h 34m2 stops

9:55 am - 11:58 pm

OPO

BUF

19h 03m2 stops

$492Multiple Airlines

Thu, Feb 5 - Tue, Feb 17

4:01 pm - 9:45 pm

BUF

LIS

24h 44m2 stops

11:05 am - 10:55 pm

LIS

BUF

16h 50m1 stop

$494British Airways

Tue, Feb 3 - Wed, Feb 11

3:38 pm - 9:00 am

BUF

LIS

12h 22m1 stop

11:25 am - 11:58 pm

LIS

BUF

17h 33m2 stops

$496KLM

Fri, Feb 20 - Tue, Feb 24

7:45 pm - 3:10 pm

BUF

LIS

14h 25m2 stops

11:25 am - 12:16 am

LIS

BUF

17h 51m2 stops

$500Multiple Airlines

Tue, Feb 3 - Wed, Feb 11

11:51 am - 8:00 am

BUF

LIS

15h 09m1 stop

10:00 am - 7:02 pm

LIS

BUF

14h 02m1 stop

$506KLM

Tue, Feb 3 - Wed, Feb 11

7:00 am - 7:40 am

BUF

OPO

19h 40m2 stops

8:20 am - 10:21 pm

OPO

BUF

19h 01m2 stops

$510American Airlines

Thu, Feb 5 - Tue, Feb 17

1:59 pm - 8:10 am

BUF

LIS

13h 11m2 stops

5:00 am - 9:01 pm

LIS

BUF

21h 01m2 stops

$577United Airlines

Sun, Feb 8 - Sun, Feb 15

1:59 pm - 8:10 am

BUF

LIS

13h 11m2 stops

5:00 am - 9:01 pm

LIS

BUF

21h 01m2 stops

$578United Airlines

Sun, Feb 8 - Sun, Feb 15

3:25 pm - 1:00 am

BUF

FNC

28h 35m2 stops

9:15 pm - 11:47 pm

FNC

BUF

31h 32m2 stops

$835TAP AIR PORTUGAL

Thu, Jan 29 - Mon, Feb 2

5:29 pm - 2:30 pm

BUF

OPO

40h 01m2 stops

6:05 pm - 9:39 am

OPO

BUF

20h 34m1 stop

$917TAP AIR PORTUGAL

Fri, May 1 - Mon, May 11

British Airways flights from Buffalo to Portugal

Our best British Airways deals on Buffalo to Portugal flight tickets

British Airways

Feb 3

BUF4:01 pmBuffalo

24h 44m

2 stops

LIS9:45 pmLisbon Humberto Delgado

Feb 11

LIS11:05 amLisbon Humberto Delgado

16h 50m

1 stop

BUF10:55 pmBuffalo

$494

Find similar

British Airways

Feb 20

BUF11:24 amBuffalo

19h 41m

2 stops

LIS12:05 pmLisbon Humberto Delgado

Feb 24

LIS7:40 pmLisbon Humberto Delgado

31h 41m

2 stops

BUF10:21 pmBuffalo

$507

Find similar

British Airways

Mar 13

BUF4:25 pmBuffalo

21h 30m

2 stops

LIS5:55 pmLisbon Humberto Delgado

Mar 18

LIS11:15 amLisbon Humberto Delgado

15h 29m

1 stop

BUF10:44 pmBuffalo

$715

Find similar

KLM flights from Buffalo to Portugal

Our best KLM deals on Buffalo to Portugal flight tickets

KLM

Feb 20

BUF3:38 pmBuffalo

12h 22m

1 stop

LIS9:00 amLisbon Humberto Delgado

Feb 24

LIS11:25 amLisbon Humberto Delgado

17h 33m

2 stops

BUF11:58 pmBuffalo

$496

Find similar

KLM

Feb 3

BUF11:51 amBuffalo

15h 09m

1 stop

LIS8:00 amLisbon Humberto Delgado

Feb 11

LIS10:00 amLisbon Humberto Delgado

14h 02m

1 stop

BUF7:02 pmBuffalo

$506

Find similar

KLM

Dec 15

BUF11:21 amBuffalo

16h 39m

1 stop

LIS9:00 amLisbon Humberto Delgado

Dec 22

LIS10:00 amLisbon Humberto Delgado

18h 45m

1 stop

BUF11:45 pmBuffalo

$1,087

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 2/5

11:51 am-10:25 am

2 stops17h 34m

Porto

Tue 2/17

9:55 am-11:58 pm

2 stops19h 03m

$492

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

4:01 pm-9:45 pm

2 stops24h 44m

Lisbon Humberto Delgado

Wed 2/11

11:05 am-10:55 pm

1 stop16h 50m

$494

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Fri 2/20

3:38 pm-9:00 am

1 stop12h 22m

Lisbon Humberto Delgado

Tue 2/24

11:25 am-11:58 pm

2 stops17h 33m

$496

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

7:45 pm-3:10 pm

2 stops14h 25m

Lisbon Humberto Delgado

Wed 2/11

11:25 am-12:16 am

2 stops17h 51m

$500

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

11:51 am-8:00 am

1 stop15h 09m

Lisbon Humberto Delgado

Wed 2/11

10:00 am-7:02 pm

1 stop14h 02m

$506

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 2/5

7:00 am-7:40 am

2 stops19h 40m

Porto

Tue 2/17

8:20 am-10:21 pm

2 stops19h 01m

$510

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sun 2/8

1:59 pm-8:10 am

2 stops13h 11m

Lisbon Humberto Delgado

Sun 2/15

5:00 am-9:01 pm

2 stops21h 01m

$577

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sun 2/8

1:59 pm-8:10 am

2 stops13h 11m

Lisbon Humberto Delgado

Sun 2/15

5:00 am-9:01 pm

2 stops21h 01m

$578

BuffaloFunchal

BUF - FNC

BUFFNC

Buffalo

Thu 1/29

3:25 pm-1:00 am

2 stops28h 35m

Funchal Madeira

Mon 2/2

9:15 pm-11:47 pm

2 stops31h 32m

$835

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 5/1

5:29 pm-2:30 pm

2 stops40h 01m

Porto

Mon 5/11

6:05 pm-9:39 am

1 stop20h 34m

$917

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Buffalo is in February. Flight prices, which tend to average around $604, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Buffalo during November instead. Flights to Portugal in November, while not as cheap as those in February, still average around $699.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Monday is the cheapest day to fly to Portugal from Buffalo. The lowest ticket price found for a Monday departure recently was $869. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Thursday, with ticket prices averaging around $1,209.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Buffalo to Portugal during this time can be as low as $916. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,163 per ticket.

Can stopping save me money on Buffalo to Portugal flights?

You could potentially save up to 3% on your flight if you consider stops on a Buffalo to Portugal flight.

Cheap Buffalo to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Portugal

Fastest flight time	10h 51m
Direct flights	None

The fastest flight from Buffalo to Portugal takes 10h 51m

There are no direct flights from Buffalo to Portugal. There are no popular flight routes from Buffalo to Portugal.

Search flight deals

When did momondo last update prices for flights from Buffalo Airport to Portugal?
Prices for flights from Buffalo Airport to Portugal were last updated today.
How many operators does momondo search for flights from Buffalo Airport to Portugal?
As of December 2025, there are 2 operators available to choose from for flights from Buffalo Airport to Portugal.
How old do you have to be to fly from Buffalo Airport to Portugal?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Buffalo to Portugal

Compare and see reviews for airlines that fly from Buffalo to Portugal with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $628	Free Cancellation	Rating 7.4 9,095 reviews		Search United Airlines flights
TAP AIR PORTUGAL	PriceFrom $699	Free Cancellation	Rating 7.1 2,089 reviews		Search TAP AIR PORTUGAL flights

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Portugal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portugal from Buffalo.

Can I find flights from Buffalo to Portugal with flexible booking policies on momondo?

Flights from Buffalo to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Buffalo to Portugal?

Once you have performed a search for Buffalo to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Buffalo to Portugal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portugal from Buffalo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Portugal

Popular cities in Portugal

Flights to Lisbonfrom $366

Flights to Portofrom $346

Flights to Funchalfrom $418

Flights to Farofrom $409

Flights to Ponta Delgadafrom $403

Flights to Lajesfrom $484

Flights to Hortafrom $576

Flights to Pico Islandfrom $561

Flights to Porto Santofrom $554

Flights to Velasfrom $612

Cheap flights from Buffalo to Portugal from $376

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Portugal departing on 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Buffalo to Portugal

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British Airways flights from Buffalo to Portugal

Our best British Airways deals on Buffalo to Portugal flight tickets

KLM flights from Buffalo to Portugal

Our best KLM deals on Buffalo to Portugal flight tickets

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Use the filters below to find and compare flights from Buffalo to Portugal that are best for you.

See travel insights to Portugal from

How to get the cheapest flight ticket from Buffalo to Portugal

What is the cheapest month to fly to Portugal?

What is the cheapest day to depart on your flight to Portugal?

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Buffalo to Portugal during this time can be as low as $916. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,163 per ticket.

Can stopping save me money on Buffalo to Portugal flights?

You could potentially save up to 3% on your flight if you consider stops on a Buffalo to Portugal flight.

What is the cheapest airline that flies from Buffalo to Portugal?

American Airlines and TAP AIR PORTUGAL are the most popular carriers operating from Buffalo to Portugal

What airlines fly to Portugal?

Cheap Buffalo to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Portugal

Fastest flight time

Direct flights

When did momondo last update prices for flights from Buffalo Airport to Portugal?

How many operators does momondo search for flights from Buffalo Airport to Portugal?

How old do you have to be to fly from Buffalo Airport to Portugal?

What documentation or ID do you need to fly to Portugal?

Best airlines flying from Buffalo to Portugal

Compare and see reviews for airlines that fly from Buffalo to Portugal with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Portugal?

Can I find flights from Buffalo to Portugal with flexible booking policies on momondo?

How can momondo help me find flights from Buffalo to Portugal?

I’m not ready to book a flight from Buffalo to Portugal right now. Can momondo alert me if prices change?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo