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Cheap flights from Buffalo to Porto from $660

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 6/4. 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.
United Airlines Logo
7:00 am - 9:45 am
BUF
-
OPO
45h 45m
2 stops
United Airlines Logo
11:20 am - 10:00 am
OPO
-
BUF
27h 40m
2 stops
$1,024United Airlines
Sat, Jul 18 - Sat, Aug 1
KLM Logo
7:31 pm - 3:30 pm
BUF
-
OPO
14h 59m
2 stops
KLM Logo
11:45 am - 12:19 am
OPO
-
BUF
17h 34m
2 stops
$1,047KLM
Mon, May 18 - Sun, May 24
Multiple Airlines Logo
7:31 pm - 3:30 pm
BUF
-
OPO
14h 59m
2 stops
Multiple Airlines Logo
12:25 pm - 12:19 am
OPO
-
BUF
16h 54m
1 stop
$1,054Multiple Airlines
Mon, May 18 - Sun, May 24
United Airlines Logo
10:34 am - 6:55 am
BUF
-
OPO
15h 21m
1 stop
United Airlines Logo
6:00 am - 10:31 pm
OPO
-
BUF
21h 31m
2 stops
$1,097United Airlines
Thu, May 21 - Sun, May 24
Lufthansa Logo
10:34 am - 9:45 am
BUF
-
OPO
18h 11m
1 stop
Lufthansa Logo
11:20 am - 10:00 am
OPO
-
BUF
27h 40m
2 stops
$1,118Lufthansa
Sat, Jul 18 - Sat, Aug 1
KLM Logo
12:18 pm - 10:40 am
BUF
-
OPO
17h 22m
2 stops
KLM Logo
11:45 am - 12:19 am
OPO
-
BUF
17h 34m
2 stops
$1,123KLM
Sun, May 17 - Sun, May 24
KLM Logo
12:18 pm - 10:40 am
BUF
-
OPO
17h 22m
2 stops
KLM Logo
12:25 pm - 12:19 am
OPO
-
BUF
16h 54m
1 stop
$1,130KLM
Sun, May 17 - Sun, May 24
Delta Logo
7:31 pm - 10:15 pm
BUF
-
OPO
21h 44m
2 stops
Delta Logo
5:00 am - 12:19 am
OPO
-
BUF
24h 19m
2 stops
$1,138Delta
Mon, May 18 - Tue, May 26
United Airlines Logo
6:00 am - 6:15 am
BUF
-
OPO
19h 15m
1 stop
United Airlines Logo
12:15 pm - 11:59 pm
OPO
-
BUF
40h 44m
2 stops
$1,143United Airlines
Tue, Jun 23 - Tue, Jun 30
Delta Logo
7:31 pm - 10:15 pm
BUF
-
OPO
21h 44m
2 stops
Delta Logo
1:05 pm - 12:19 am
OPO
-
BUF
16h 14m
1 stop
$1,145Delta
Mon, May 18 - Tue, May 26

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Jul 18
BUF7:00 amBuffalo
45h 45m
2 stops
OPO9:45 amPorto
Aug 1
OPO11:20 amPorto
27h 40m
2 stops
BUF10:00 amBuffalo
$1,024
United Airlines
May 21
BUF10:34 amBuffalo
15h 21m
1 stop
OPO6:55 amPorto
May 24
OPO6:00 amPorto
21h 31m
2 stops
BUF10:31 pmBuffalo
$1,097
United Airlines
Jun 23
BUF6:00 amBuffalo
19h 15m
1 stop
OPO6:15 amPorto
Jun 30
OPO12:15 pmPorto
40h 44m
2 stops
BUF11:59 pmBuffalo
$1,143

Lufthansa flights from Buffalo to Porto

Our best Lufthansa deals on Buffalo to Porto flight tickets
Lufthansa
Jul 18
BUF10:34 amBuffalo
18h 11m
1 stop
OPO9:45 amPorto
Aug 1
OPO11:20 amPorto
27h 40m
2 stops
BUF10:00 amBuffalo
$1,118
Lufthansa
May 19
BUF7:50 pmBuffalo
22h 35m
2 stops
OPO11:25 pmPorto
May 23
OPO11:05 amPorto
17h 54m
2 stops
BUF11:59 pmBuffalo
$1,462
Lufthansa
May 21
BUF7:52 pmBuffalo
22h 33m
2 stops
OPO11:25 pmPorto
May 24
OPO6:00 amPorto
21h 31m
2 stops
BUF10:31 pmBuffalo
$1,605

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 May 11, 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

Sat 7/18

7:00 am-9:45 am

2 stops45h 45m

Porto

Sat 8/1

11:20 am-10:00 am

2 stops27h 40m

$1,024

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 5/18

7:31 pm-3:30 pm

2 stops14h 59m

Porto

Sun 5/24

11:45 am-12:19 am

2 stops17h 34m

$1,047
Quickest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 5/18

7:31 pm-3:30 pm

2 stops14h 59m

Porto

Sun 5/24

12:25 pm-12:19 am

1 stop16h 54m

$1,054

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 5/21

10:34 am-6:55 am

1 stop15h 21m

Porto

Sun 5/24

6:00 am-10:31 pm

2 stops21h 31m

$1,097

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 7/18

10:34 am-9:45 am

1 stop18h 11m

Porto

Sat 8/1

11:20 am-10:00 am

2 stops27h 40m

$1,118

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 5/17

12:18 pm-10:40 am

2 stops17h 22m

Porto

Sun 5/24

11:45 am-12:19 am

2 stops17h 34m

$1,123

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 5/17

12:18 pm-10:40 am

2 stops17h 22m

Porto

Sun 5/24

12:25 pm-12:19 am

1 stop16h 54m

$1,130

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 5/18

7:31 pm-10:15 pm

2 stops21h 44m

Porto

Tue 5/26

5:00 am-12:19 am

2 stops24h 19m

$1,138

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 6/23

6:00 am-6:15 am

1 stop19h 15m

Porto

Tue 6/30

12:15 pm-11:59 pm

2 stops40h 44m

$1,143

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 5/18

7:31 pm-10:15 pm

2 stops21h 44m

Porto

Tue 5/26

1:05 pm-12:19 am

1 stop16h 14m

$1,145

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

14h 59m

Direct flights

None
The fastest flight from Buffalo to Porto takes 14h 59m
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 14h 59m, 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
Lamego
Esposende
Chaves
Pinhao
Espinho
Guimarães
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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