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Cheap flights from Buffalo to Porto from $523

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 10/1. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Buffalo to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:44 pm - 9:30 am
BUF
-
OPO
13h 46m
2 stops
United Airlines Logo
6:00 am - 6:26 pm
OPO
-
BUF
17h 26m
2 stops
$709United Airlines
Wed, Dec 9 - Wed, Jan 13
United Airlines Logo
7:59 pm - 9:30 am
BUF
-
OPO
32h 31m
2 stops
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$721United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
8:45 pm - 9:30 am
BUF
-
OPO
31h 45m
1 stop
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$722United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
7:59 pm - 9:30 am
BUF
-
OPO
32h 31m
2 stops
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$726United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
8:45 pm - 9:30 am
BUF
-
OPO
31h 45m
1 stop
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$727United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
8:45 pm - 9:30 am
BUF
-
OPO
31h 45m
1 stop
United Airlines Logo
12:35 pm - 8:05 pm
OPO
-
BUF
12h 30m
1 stop
$731United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
7:59 pm - 9:30 am
BUF
-
OPO
32h 31m
2 stops
United Airlines Logo
6:00 am - 8:56 pm
OPO
-
BUF
19h 56m
2 stops
$732United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
4:00 pm - 9:30 am
BUF
-
OPO
12h 30m
1 stop
United Airlines Logo
12:35 pm - 8:05 pm
OPO
-
BUF
12h 30m
1 stop
$776United Airlines
Sat, Nov 14 - Wed, Nov 18
United Airlines Logo
4:00 pm - 9:30 am
BUF
-
OPO
12h 30m
1 stop
United Airlines Logo
12:35 pm - 8:05 pm
OPO
-
BUF
12h 30m
1 stop
$781United Airlines
Sat, Nov 14 - Wed, Nov 18
Multiple Airlines Logo
7:59 pm - 3:20 pm
BUF
-
OPO
38h 21m
2 stops
Multiple Airlines Logo
12:05 pm - 8:31 pm
OPO
-
BUF
37h 26m
2 stops
$788Multiple Airlines
Mon, Nov 23 - Mon, Nov 30

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United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Dec 9
BUF2:44 pmBuffalo
13h 46m
2 stops
OPO9:30 amPorto
Jan 13
OPO6:00 amPorto
17h 26m
2 stops
BUF6:26 pmBuffalo
$709
United Airlines
Nov 14
BUF7:59 pmBuffalo
32h 31m
2 stops
OPO9:30 amPorto
Nov 18
OPO12:35 pmPorto
25h 54m
2 stops
BUF9:29 amBuffalo
$721
United Airlines
Nov 14
BUF8:45 pmBuffalo
31h 45m
1 stop
OPO9:30 amPorto
Nov 18
OPO12:35 pmPorto
25h 54m
2 stops
BUF9:29 amBuffalo
$722

Air Canada flights from Buffalo to Porto

Our best Air Canada deals on Buffalo to Porto flight tickets
Air Canada
Aug 14
BUF10:30 amBuffalo
15h 40m
3 stops
OPO7:10 amPorto
Aug 20
OPO11:50 amPorto
26h 38m
3 stops
BUF9:28 amBuffalo
$1,301
Air Canada
Sep 2
BUF6:55 amBuffalo
19h 05m
3 stops
OPO7:00 amPorto
Sep 9
OPO11:00 amPorto
27h 28m
3 stops
BUF9:28 amBuffalo
$1,507
Air Canada
Aug 18
BUF6:55 amBuffalo
19h 05m
3 stops
OPO7:00 amPorto
Aug 24
OPO11:00 amPorto
27h 28m
3 stops
BUF9:28 amBuffalo
$2,956

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 July 22, 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

Cheapest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 12/9

2:44 pm-9:30 am

2 stops13h 46m

Porto

Wed 1/13

6:00 am-6:26 pm

2 stops17h 26m

$709

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

7:59 pm-9:30 am

2 stops32h 31m

Porto

Wed 11/18

12:35 pm-9:29 am

2 stops25h 54m

$721

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

8:45 pm-9:30 am

1 stop31h 45m

Porto

Wed 11/18

12:35 pm-9:29 am

2 stops25h 54m

$722

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

7:59 pm-9:30 am

2 stops32h 31m

Porto

Wed 11/18

12:35 pm-9:29 am

2 stops25h 54m

$726

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

8:45 pm-9:30 am

1 stop31h 45m

Porto

Wed 11/18

12:35 pm-9:29 am

2 stops25h 54m

$727

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

8:45 pm-9:30 am

1 stop31h 45m

Porto

Wed 11/18

12:35 pm-8:05 pm

1 stop12h 30m

$731

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

7:59 pm-9:30 am

2 stops32h 31m

Porto

Wed 11/18

6:00 am-8:56 pm

2 stops19h 56m

$732
Quickest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

4:00 pm-9:30 am

1 stop12h 30m

Porto

Wed 11/18

12:35 pm-8:05 pm

1 stop12h 30m

$776

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 11/14

4:00 pm-9:30 am

1 stop12h 30m

Porto

Wed 11/18

12:35 pm-8:05 pm

1 stop12h 30m

$781

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 11/23

7:59 pm-3:20 pm

2 stops38h 21m

Porto

Mon 11/30

12:05 pm-8:31 pm

2 stops37h 26m

$788

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 7% 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

9h 45m

Direct flights

None
The fastest flight from Buffalo to Porto takes 9h 45m
There are no direct flights from Buffalo to Porto. There are no popular flight routes from Buffalo to Porto.
Search flight deals

Frequently asked questions about flying from Buffalo to Porto

  • How far is Buffalo to Porto by plane?

    There are 3495.8 mi between Buffalo and Porto. Flights usually cover this in 9h 45m, 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
Pinhao
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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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