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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.
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
6:00 am - 6:55 am
BUF
-
OPO
19h 55m
1 stop
United Airlines Logo
6:00 am - 7:03 pm
OPO
-
BUF
18h 03m
2 stops
$989United Airlines
Fri, Jul 17 - Fri, Jul 24
United Airlines Logo
6:15 am - 6:55 am
BUF
-
OPO
19h 40m
2 stops
United Airlines Logo
6:00 am - 7:03 pm
OPO
-
BUF
18h 03m
2 stops
$993United Airlines
Fri, Jul 17 - Fri, Jul 24
Multiple Airlines Logo
7:59 pm - 3:25 pm
BUF
-
OPO
14h 26m
2 stops
Multiple Airlines Logo
11:45 am - 11:59 pm
OPO
-
BUF
17h 14m
2 stops
$1,151Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
7:00 am - 7:00 am
BUF
-
OPO
19h 00m
2 stops
Multiple Airlines Logo
11:05 am - 11:59 pm
OPO
-
BUF
17h 54m
2 stops
$1,283Multiple Airlines
Mon, Jun 22 - Wed, Jul 1
United Airlines Logo
7:00 pm - 6:15 am
BUF
-
OPO
30h 15m
1 stop
United Airlines Logo
6:00 am - 7:03 pm
OPO
-
BUF
18h 03m
2 stops
$1,287United Airlines
Mon, Jun 22 - Wed, Jul 1
Lufthansa Logo
7:00 pm - 6:15 am
BUF
-
OPO
30h 15m
1 stop
Lufthansa Logo
12:35 pm - 10:31 pm
OPO
-
BUF
14h 56m
1 stop
$1,292Lufthansa
Mon, Jun 22 - Wed, Jul 1
United Airlines Logo
6:40 pm - 9:45 am
BUF
-
OPO
10h 05m
1 stop
United Airlines Logo
12:35 pm - 10:30 pm
OPO
-
BUF
14h 55m
1 stop
$1,361United Airlines
Fri, Jul 17 - Fri, Jul 24
Lufthansa Logo
6:00 am - 6:55 am
BUF
-
OPO
19h 55m
1 stop
Lufthansa Logo
12:35 pm - 11:12 pm
OPO
-
BUF
15h 37m
1 stop
$1,390Lufthansa
Sat, Aug 8 - Sat, Aug 15
Air Canada Logo
7:00 am - 7:00 am
BUF
-
OPO
19h 00m
3 stops
Air Canada Logo
11:20 am - 9:28 am
OPO
-
BUF
27h 08m
3 stops
$2,832Air Canada
Sat, Aug 8 - Sat, Aug 15

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Jul 17
BUF6:00 amBuffalo
19h 55m
1 stop
OPO6:55 amPorto
Jul 24
OPO6:00 amPorto
18h 03m
2 stops
BUF7:03 pmBuffalo
$989
United Airlines
Jul 17
BUF6:15 amBuffalo
19h 40m
2 stops
OPO6:55 amPorto
Jul 24
OPO6:00 amPorto
18h 03m
2 stops
BUF7:03 pmBuffalo
$993
United Airlines
Jun 22
BUF7:00 pmBuffalo
30h 15m
1 stop
OPO6:15 amPorto
Jul 1
OPO6:00 amPorto
18h 03m
2 stops
BUF7:03 pmBuffalo
$1,287

Lufthansa flights from Buffalo to Porto

Our best Lufthansa deals on Buffalo to Porto flight tickets
Lufthansa
Jun 22
BUF7:00 pmBuffalo
30h 15m
1 stop
OPO6:15 amPorto
Jul 1
OPO12:35 pmPorto
14h 56m
1 stop
BUF10:31 pmBuffalo
$1,292
Lufthansa
Aug 8
BUF6:00 amBuffalo
19h 55m
1 stop
OPO6:55 amPorto
Aug 15
OPO12:35 pmPorto
15h 37m
1 stop
BUF11:12 pmBuffalo
$1,390

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 June 3, 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

Fri 7/17

6:00 am-6:55 am

1 stop19h 55m

Porto

Fri 7/24

6:00 am-7:03 pm

2 stops18h 03m

$989

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 7/17

6:15 am-6:55 am

2 stops19h 40m

Porto

Fri 7/24

6:00 am-7:03 pm

2 stops18h 03m

$993

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 8/8

7:59 pm-3:25 pm

2 stops14h 26m

Porto

Sat 8/15

11:45 am-11:59 pm

2 stops17h 14m

$1,151

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 6/22

7:00 am-7:00 am

2 stops19h 00m

Porto

Wed 7/1

11:05 am-11:59 pm

2 stops17h 54m

$1,283

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 6/22

7:00 pm-6:15 am

1 stop30h 15m

Porto

Wed 7/1

6:00 am-7:03 pm

2 stops18h 03m

$1,287

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 6/22

7:00 pm-6:15 am

1 stop30h 15m

Porto

Wed 7/1

12:35 pm-10:31 pm

1 stop14h 56m

$1,292
Quickest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 7/17

6:40 pm-9:45 am

1 stop10h 05m

Porto

Fri 7/24

12:35 pm-10:30 pm

1 stop14h 55m

$1,361

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 8/8

6:00 am-6:55 am

1 stop19h 55m

Porto

Sat 8/15

12:35 pm-11:12 pm

1 stop15h 37m

$1,390

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 8/8

7:00 am-7:00 am

3 stops19h 00m

Porto

Sat 8/15

11:20 am-9:28 am

3 stops27h 08m

$2,832
Cheapest one-way

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 10/1

3:53 pm-10:30 am

1 stop13h 37m

$450

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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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 14% 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 26m

Direct flights

None
The fastest flight from Buffalo to Porto takes 14h 26m
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 26m, 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
Chaves
Esposende
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
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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