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Cheap flights from Buffalo to Porto from $352

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 Porto departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Buffalo to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:49 pm - 11:40 am
BUF
-
OPO
15h 51m2 stops
United Airlines Logo
6:00 am - 5:40 pm
OPO
-
BUF
16h 40m2 stops
$705United Airlines
Fri, Jan 30 - Tue, Feb 3
American Airlines Logo
7:15 pm - 7:40 am
BUF
-
OPO
31h 25m2 stops
American Airlines Logo
8:20 am - 11:59 pm
OPO
-
BUF
20h 39m2 stops
$3,850American Airlines
Fri, Dec 19 - Sun, Jan 4
American Airlines Logo
7:15 pm - 7:40 am
BUF
-
OPO
31h 25m2 stops
American Airlines Logo
8:40 pm - 11:59 pm
OPO
-
BUF
32h 19m2 stops
$3,861American Airlines
Fri, Dec 19 - Sat, Jan 3
American Airlines Logo
7:15 pm - 7:40 am
BUF
-
OPO
31h 25m2 stops
American Airlines Logo
8:20 am - 12:45 pm
OPO
-
BUF
33h 25m2 stops
$4,052American Airlines
Fri, Dec 19 - Fri, Jan 2
TAP AIR PORTUGAL Logo
11:04 am - 2:00 pm
BUF
-
OPO
21h 56m2 stops
TAP AIR PORTUGAL Logo
6:55 am - 7:28 pm
OPO
-
BUF
17h 33m2 stops
$4,830TAP AIR PORTUGAL
Sat, Dec 20 - Mon, Jan 5

American Airlines flights from Buffalo to Porto

Our best American Airlines deals on Buffalo to Porto flight tickets
American Airlines
Dec 14
BUF4:46 pmBuffalo
37h 59m
2 stops
OPO11:45 amPorto
Jan 4
OPO8:20 amPorto
20h 39m
2 stops
BUF11:59 pmBuffalo
$2,915
Find similar
American Airlines
Dec 14
BUF4:46 pmBuffalo
37h 59m
2 stops
OPO11:45 amPorto
Jan 3
OPO8:40 pmPorto
32h 19m
2 stops
BUF11:59 pmBuffalo
$2,926
Find similar
American Airlines
Dec 16
BUF3:34 pmBuffalo
19h 26m
2 stops
OPO4:00 pmPorto
Jan 2
OPO8:20 amPorto
19h 29m
2 stops
BUF10:49 pmBuffalo
$3,117
Find similar

Delta flights from Buffalo to Porto

Our best Delta deals on Buffalo to Porto flight tickets
Delta
Dec 14
BUF11:21 amBuffalo
18h 09m
2 stops
OPO10:30 amPorto
Jan 6
OPO11:25 amPorto
41h 51m
2 stops
BUF12:16 amBuffalo
$1,800
Find similar
Delta
Dec 16
BUF12:10 pmBuffalo
17h 20m
2 stops
OPO10:30 amPorto
Jan 6
OPO11:25 amPorto
41h 51m
2 stops
BUF12:16 amBuffalo
$1,911
Find similar
Delta
Dec 17
BUF6:25 pmBuffalo
16h 00m
2 stops
OPO3:25 pmPorto
Jan 6
OPO11:25 amPorto
41h 51m
2 stops
BUF12:16 amBuffalo
$2,070
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Porto 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, momondo users made 832,500 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from Buffalo to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 1/30

2:49 pm-11:40 am

2 stops15h 51m

Porto

Tue 2/3

6:00 am-5:40 pm

2 stops16h 40m

$705

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 12/19

7:15 pm-7:40 am

2 stops31h 25m

Porto

Sun 1/4

8:20 am-11:59 pm

2 stops20h 39m

$3,850

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 12/19

7:15 pm-7:40 am

2 stops31h 25m

Porto

Sat 1/3

8:40 pm-11:59 pm

2 stops32h 19m

$3,861

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 12/19

7:15 pm-7:40 am

2 stops31h 25m

Porto

Fri 1/2

8:20 am-12:45 pm

2 stops33h 25m

$4,052

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 12/20

11:04 am-2:00 pm

2 stops21h 56m

Porto

Mon 1/5

6:55 am-7:28 pm

2 stops17h 33m

$4,830

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 1/22

7:59 pm-8:55 am

3 stops55h 56m

$352

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 1/22

10:00 am-7:00 pm

2 stops28h 00m

$405

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 1/15

9:55 am-11:40 am

2 stops20h 45m

$548

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto from

How to get the cheapest flight ticket from Buffalo to Porto

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

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

In the morning is the cheapest time of day to fly from Buffalo to Porto when you can find flight prices for as low as $742. Flying to Porto in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $994 on average. Flights to Porto from Buffalo in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Buffalo to Porto flights?

You could potentially save up to 1% on your flight if you consider stops on a Buffalo to Porto flight.

When to book flights from Buffalo to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to Porto (BUF to OPO) flight deals and tips

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

Fastest flight time

13h 40m

Direct flights

None
The fastest flight from Buffalo to Porto takes 13h 40m
There are no direct flights from Buffalo to Porto. There are no popular flight routes from Buffalo to Porto.
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  • How far is Buffalo to Porto by plane?

    There are 3495.8 mi between Buffalo and Porto. Flights usually cover this in 15h 51m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Buffalo Airport to Porto Airport are updated daily.

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

    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 Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
Ponte de Lima
Arcos de Valdevez
Pinhao
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

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 Porto from Buffalo.

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

Yes. momondo enables you to select and highlight flights to Porto from Buffalo with this policy.

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

Once you have performed a search for Buffalo to Porto 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 Porto right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto 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.

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