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Cheap flights from Buffalo to Porto from $450

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.
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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.
Air Canada Logo
7:00 am - 7:00 am
BUF
-
OPO
43h 00m
2 stops
Air Canada Logo
11:20 am - 4:46 pm
OPO
-
BUF
58h 26m
2 stops
$1,091Air Canada
Mon, Jul 20 - Sat, Aug 1
TAP AIR PORTUGAL Logo
9:48 am - 10:05 am
BUF
-
OPO
19h 17m
1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 9:31 am
OPO
-
BUF
40h 01m
2 stops
$1,147TAP AIR PORTUGAL
Sun, Apr 26 - Mon, May 4
TAP AIR PORTUGAL Logo
9:48 am - 8:25 pm
BUF
-
OPO
29h 37m
2 stops
TAP AIR PORTUGAL Logo
10:30 pm - 9:31 am
OPO
-
BUF
40h 01m
2 stops
$1,169TAP AIR PORTUGAL
Sun, Apr 26 - Mon, May 4
KLM Logo
10:00 am - 10:30 am
BUF
-
OPO
19h 30m
1 stop
KLM Logo
9:25 am - 10:45 pm
OPO
-
BUF
18h 20m
2 stops
$1,176KLM
Mon, Jul 20 - Sat, Aug 1
Delta Logo
6:00 am - 8:30 am
BUF
-
OPO
21h 30m
2 stops
Delta Logo
6:30 am - 10:45 pm
OPO
-
BUF
21h 15m
2 stops
$1,180Delta
Mon, Jul 20 - Sat, Aug 1
KLM Logo
3:50 pm - 10:30 am
BUF
-
OPO
13h 40m
1 stop
KLM Logo
12:55 pm - 12:40 am
OPO
-
BUF
16h 45m
1 stop
$1,254KLM
Mon, Jul 20 - Sat, Aug 1
Air Europa Logo
3:50 pm - 10:30 am
BUF
-
OPO
13h 40m
1 stop
Air Europa Logo
12:55 pm - 9:41 am
OPO
-
BUF
25h 46m
1 stop
$1,311Air Europa
Mon, Jul 20 - Sat, Aug 1
United Airlines Logo
7:00 am - 9:45 am
BUF
-
OPO
21h 45m
2 stops
United Airlines Logo
12:35 pm - 10:22 am
OPO
-
BUF
26h 47m
2 stops
$1,357United Airlines
Sat, May 23 - Sat, May 30
KLM Logo
7:55 pm - 3:30 pm
BUF
-
OPO
14h 35m
2 stops
KLM Logo
12:55 pm - 7:15 pm
OPO
-
BUF
11h 20m
1 stop
$1,361KLM
Sat, May 23 - Sat, May 30
KLM Logo
10:32 am - 10:20 am
BUF
-
OPO
18h 48m
1 stop
KLM Logo
12:55 pm - 7:15 pm
OPO
-
BUF
11h 20m
1 stop
$1,486KLM
Sat, May 23 - Sat, May 30

KLM flights from Buffalo to Porto

Our best KLM deals on Buffalo to Porto flight tickets
KLM
Jul 20
BUF10:00 amBuffalo
19h 30m
1 stop
OPO10:30 amPorto
Aug 1
OPO9:25 amPorto
18h 20m
2 stops
BUF10:45 pmBuffalo
$1,176
KLM
Jul 20
BUF3:50 pmBuffalo
13h 40m
1 stop
OPO10:30 amPorto
Aug 1
OPO12:55 pmPorto
16h 45m
1 stop
BUF12:40 amBuffalo
$1,254
KLM
May 23
BUF7:55 pmBuffalo
14h 35m
2 stops
OPO3:30 pmPorto
May 30
OPO12:55 pmPorto
11h 20m
1 stop
BUF7:15 pmBuffalo
$1,361

TAP AIR PORTUGAL flights from Buffalo to Porto

Our best TAP AIR PORTUGAL deals on Buffalo to Porto flight tickets
TAP AIR PORTUGAL
Apr 26
BUF9:48 amBuffalo
19h 17m
1 stop
OPO10:05 amPorto
May 4
OPO10:30 pmPorto
40h 01m
2 stops
BUF9:31 amBuffalo
$1,147
TAP AIR PORTUGAL
Apr 26
BUF9:48 amBuffalo
29h 37m
2 stops
OPO8:25 pmPorto
May 4
OPO10:30 pmPorto
40h 01m
2 stops
BUF9:31 amBuffalo
$1,169

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 April 10, 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

Mon 7/20

7:00 am-7:00 am

2 stops43h 00m

Porto

Sat 8/1

11:20 am-4:46 pm

2 stops58h 26m

$1,091

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 4/26

9:48 am-10:05 am

1 stop19h 17m

Porto

Mon 5/4

10:30 pm-9:31 am

2 stops40h 01m

$1,147

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 4/26

9:48 am-8:25 pm

2 stops29h 37m

Porto

Mon 5/4

10:30 pm-9:31 am

2 stops40h 01m

$1,169

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 7/20

10:00 am-10:30 am

1 stop19h 30m

Porto

Sat 8/1

9:25 am-10:45 pm

2 stops18h 20m

$1,176

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 7/20

6:00 am-8:30 am

2 stops21h 30m

Porto

Sat 8/1

6:30 am-10:45 pm

2 stops21h 15m

$1,180

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 7/20

3:50 pm-10:30 am

1 stop13h 40m

Porto

Sat 8/1

12:55 pm-12:40 am

1 stop16h 45m

$1,254

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 7/20

3:50 pm-10:30 am

1 stop13h 40m

Porto

Sat 8/1

12:55 pm-9:41 am

1 stop25h 46m

$1,311

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 5/23

7:00 am-9:45 am

2 stops21h 45m

Porto

Sat 5/30

12:35 pm-10:22 am

2 stops26h 47m

$1,357
Quickest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 5/23

7:55 pm-3:30 pm

2 stops14h 35m

Porto

Sat 5/30

12:55 pm-7:15 pm

1 stop11h 20m

$1,361

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 5/23

10:32 am-10:20 am

1 stop18h 48m

Porto

Sat 5/30

12:55 pm-7:15 pm

1 stop11h 20m

$1,486

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 10m

Direct flights

None
The fastest flight from Buffalo to Porto takes 10h 10m
There are no direct flights from Buffalo to Porto. There are no popular flight routes from Buffalo to Porto.
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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 10h 10m, 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
Chaves
Pinhao
Guimarães
Espinho
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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