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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
10:41 am - 9:30 am
BUF
-
OPO
17h 49m
1 stop
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$717United Airlines
Tue, Nov 3 - Fri, Nov 13
United Airlines Logo
10:32 am - 9:30 am
BUF
-
OPO
17h 58m
2 stops
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$721United Airlines
Tue, Nov 3 - Fri, Nov 13
United Airlines Logo
10:41 am - 9:30 am
BUF
-
OPO
17h 49m
1 stop
United Airlines Logo
12:35 pm - 11:21 pm
OPO
-
BUF
15h 46m
1 stop
$726United Airlines
Tue, Nov 3 - Fri, Nov 13
United Airlines Logo
7:00 pm - 6:15 am
BUF
-
OPO
30h 15m
1 stop
United Airlines Logo
12:15 pm - 9:28 am
OPO
-
BUF
50h 13m
2 stops
$875United Airlines
Mon, Aug 10 - Tue, Aug 25
United Airlines Logo
6:15 am - 9:45 am
BUF
-
OPO
22h 30m
2 stops
United Airlines Logo
6:00 am - 11:44 pm
OPO
-
BUF
22h 44m
2 stops
$880United Airlines
Mon, Aug 10 - Tue, Aug 25
Delta Logo
7:40 pm - 10:30 am
BUF
-
OPO
9h 50m
1 stop
Delta Logo
9:25 am - 11:59 pm
OPO
-
BUF
19h 34m
2 stops
$884Delta
Tue, Oct 6 - Fri, Oct 16
United Airlines Logo
6:00 am - 6:55 am
BUF
-
OPO
19h 55m
1 stop
United Airlines Logo
11:50 am - 4:56 pm
OPO
-
BUF
34h 06m
2 stops
$984United Airlines
Thu, Aug 27 - Thu, Sep 3
United Airlines Logo
10:30 am - 6:55 am
BUF
-
OPO
15h 25m
2 stops
United Airlines Logo
11:50 am - 4:56 pm
OPO
-
BUF
34h 06m
2 stops
$988United Airlines
Thu, Aug 27 - Thu, Sep 3
United Airlines Logo
10:53 am - 6:55 am
BUF
-
OPO
15h 02m
1 stop
United Airlines Logo
12:35 pm - 11:12 pm
OPO
-
BUF
15h 37m
1 stop
$1,004United Airlines
Thu, Aug 27 - Thu, Sep 3
United Airlines Logo
7:59 pm - 9:45 am
BUF
-
OPO
32h 46m
2 stops
United Airlines Logo
6:00 am - 4:56 pm
OPO
-
BUF
39h 56m
2 stops
$1,010United Airlines
Sat, Aug 29 - Sat, Sep 5

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United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Nov 3
BUF10:41 amBuffalo
17h 49m
1 stop
OPO9:30 amPorto
Nov 13
OPO12:35 pmPorto
25h 54m
2 stops
BUF9:29 amBuffalo
$717
United Airlines
Nov 3
BUF10:32 amBuffalo
17h 58m
2 stops
OPO9:30 amPorto
Nov 13
OPO12:35 pmPorto
25h 54m
2 stops
BUF9:29 amBuffalo
$721
United Airlines
Nov 3
BUF10:41 amBuffalo
17h 49m
1 stop
OPO9:30 amPorto
Nov 13
OPO12:35 pmPorto
15h 46m
1 stop
BUF11:21 pmBuffalo
$726

Lufthansa flights from Buffalo to Porto

Our best Lufthansa deals on Buffalo to Porto flight tickets
Lufthansa
Oct 6
BUF7:59 pmBuffalo
22h 26m
2 stops
OPO11:25 pmPorto
Oct 16
OPO12:35 pmPorto
31h 35m
1 stop
BUF3:10 pmBuffalo
$1,131
Lufthansa
Aug 10
BUF7:00 pmBuffalo
9h 45m
1 stop
OPO9:45 amPorto
Aug 17
OPO9:00 amPorto
19h 12m
1 stop
BUF11:12 pmBuffalo
$1,364

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 17, 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

Tue 11/3

10:41 am-9:30 am

1 stop17h 49m

Porto

Fri 11/13

12:35 pm-9:29 am

2 stops25h 54m

$717

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 11/3

10:32 am-9:30 am

2 stops17h 58m

Porto

Fri 11/13

12:35 pm-9:29 am

2 stops25h 54m

$721

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 11/3

10:41 am-9:30 am

1 stop17h 49m

Porto

Fri 11/13

12:35 pm-11:21 pm

1 stop15h 46m

$726

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/10

7:00 pm-6:15 am

1 stop30h 15m

Porto

Tue 8/25

12:15 pm-9:28 am

2 stops50h 13m

$875

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/10

6:15 am-9:45 am

2 stops22h 30m

Porto

Tue 8/25

6:00 am-11:44 pm

2 stops22h 44m

$880
Quickest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 10/6

7:40 pm-10:30 am

1 stop9h 50m

Porto

Fri 10/16

9:25 am-11:59 pm

2 stops19h 34m

$884

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 8/27

6:00 am-6:55 am

1 stop19h 55m

Porto

Thu 9/3

11:50 am-4:56 pm

2 stops34h 06m

$984

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 8/27

10:30 am-6:55 am

2 stops15h 25m

Porto

Thu 9/3

11:50 am-4:56 pm

2 stops34h 06m

$988

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 8/27

10:53 am-6:55 am

1 stop15h 02m

Porto

Thu 9/3

12:35 pm-11:12 pm

1 stop15h 37m

$1,004

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 8/29

7:59 pm-9:45 am

2 stops32h 46m

Porto

Sat 9/5

6:00 am-4:56 pm

2 stops39h 56m

$1,010

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 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

24h 00m

Direct flights

None
The fastest flight from Buffalo to Porto takes 24h 00m
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 24h 00m, 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
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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