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Cheap flights from Buffalo to Porto from $476

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 5/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m
1 stop
United Airlines Logo
6:00 am - 5:51 pm
OPO
-
BUF
16h 51m
2 stops
$488United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
1:52 pm - 9:30 am
BUF
-
OPO
14h 38m
2 stops
United Airlines Logo
6:00 am - 11:44 pm
OPO
-
BUF
22h 44m
2 stops
$492United Airlines
Wed, Feb 25 - Sun, Mar 1
Air France Logo
11:52 am - 10:30 am
BUF
-
OPO
17h 38m
2 stops
Air France Logo
11:25 am - 12:14 am
OPO
-
BUF
17h 49m
2 stops
$501Air France
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m
1 stop
United Airlines Logo
6:00 am - 5:51 pm
OPO
-
BUF
16h 51m
2 stops
$537United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m
1 stop
United Airlines Logo
6:00 am - 7:06 pm
OPO
-
BUF
18h 06m
2 stops
$538United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
7:00 am - 9:30 am
BUF
-
OPO
21h 30m
2 stops
United Airlines Logo
6:00 am - 11:44 pm
OPO
-
BUF
22h 44m
2 stops
$542United Airlines
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
8:00 am - 11:10 am
BUF
-
OPO
46h 10m
2 stops
Multiple Airlines Logo
6:00 am - 9:25 pm
OPO
-
BUF
20h 25m
2 stops
$574Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
10:34 am - 11:40 pm
BUF
-
OPO
32h 06m
3 stops
Multiple Airlines Logo
6:00 am - 9:25 pm
OPO
-
BUF
20h 25m
2 stops
$621Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Delta Logo
6:15 am - 10:30 am
BUF
-
OPO
23h 15m
2 stops
Delta Logo
5:00 am - 12:14 am
OPO
-
BUF
24h 14m
2 stops
$651Delta
Wed, Feb 18 - Tue, Feb 24
Delta Logo
5:44 pm - 3:25 pm
BUF
-
OPO
16h 41m
2 stops
Delta Logo
11:15 am - 4:59 pm
OPO
-
BUF
34h 44m
2 stops
$657Delta
Mon, Feb 16 - Mon, Feb 23

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Feb 25
BUF6:25 pmBuffalo
10h 05m
1 stop
OPO9:30 amPorto
Mar 1
OPO6:00 amPorto
16h 51m
2 stops
BUF5:51 pmBuffalo
$488
United Airlines
Feb 25
BUF1:52 pmBuffalo
14h 38m
2 stops
OPO9:30 amPorto
Mar 1
OPO6:00 amPorto
22h 44m
2 stops
BUF11:44 pmBuffalo
$492
United Airlines
Feb 25
BUF6:25 pmBuffalo
10h 05m
1 stop
OPO9:30 amPorto
Mar 1
OPO6:00 amPorto
16h 51m
2 stops
BUF5:51 pmBuffalo
$537

Delta flights from Buffalo to Porto

Our best Delta deals on Buffalo to Porto flight tickets
Delta
Feb 18
BUF6:15 amBuffalo
23h 15m
2 stops
OPO10:30 amPorto
Feb 24
OPO5:00 amPorto
24h 14m
2 stops
BUF12:14 amBuffalo
$651
Delta
Feb 16
BUF5:44 pmBuffalo
16h 41m
2 stops
OPO3:25 pmPorto
Feb 23
OPO11:15 amPorto
34h 44m
2 stops
BUF4:59 pmBuffalo
$657
Delta
Feb 15
BUF7:41 pmBuffalo
38h 44m
2 stops
OPO3:25 pmPorto
Feb 27
OPO5:00 amPorto
16h 59m
2 stops
BUF4:59 pmBuffalo
$666

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 January 29, 2026.
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

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

6:00 am-5:51 pm

2 stops16h 51m

$488

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

1:52 pm-9:30 am

2 stops14h 38m

Porto

Sun 3/1

6:00 am-11:44 pm

2 stops22h 44m

$492

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

11:52 am-10:30 am

2 stops17h 38m

Porto

Sun 3/1

11:25 am-12:14 am

2 stops17h 49m

$501

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

6:00 am-5:51 pm

2 stops16h 51m

$537

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

6:00 am-7:06 pm

2 stops18h 06m

$538

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

7:00 am-9:30 am

2 stops21h 30m

Porto

Sun 3/1

6:00 am-11:44 pm

2 stops22h 44m

$542

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/18

8:00 am-11:10 am

2 stops46h 10m

Porto

Wed 2/25

6:00 am-9:25 pm

2 stops20h 25m

$574

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/18

10:34 am-11:40 pm

3 stops32h 06m

Porto

Wed 2/25

6:00 am-9:25 pm

2 stops20h 25m

$621

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/18

6:15 am-10:30 am

2 stops23h 15m

Porto

Tue 2/24

5:00 am-12:14 am

2 stops24h 14m

$651

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 2/16

5:44 pm-3:25 pm

2 stops16h 41m

Porto

Mon 2/23

11:15 am-4:59 pm

2 stops34h 44m

$657

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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

Can stopping save me money on Buffalo to Porto flights?

You could potentially save up to 12% 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

10h 05m

Direct flights

None
The fastest flight from Buffalo to Porto takes 10h 05m
There are no direct flights from Buffalo to Porto. There are no popular flight routes from Buffalo to Porto.
Search flight deals

  • How far is Buffalo to Porto by plane?

    There are 3495.8 mi between Buffalo and Porto. Flights usually cover this in 10h 05m, 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
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Ponte de Lima
Viseu
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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