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Cheap flights from Buffalo to Porto from $552

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Porto departing on 10/19. 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

United Airlines Logo
7:23 pm - 9:45 amBUF-OPO
9h 22m1 stop
United Airlines Logo
6:00 am - 10:58 pmOPO-BUF
21h 58m2 stops
$552United Airlines
Find Deal
Sun, Oct 19 - Tue, Nov 4
American Airlines Logo
11:12 am - 11:40 amBUF-OPO
19h 28m2 stops
American Airlines Logo
8:20 am - 11:36 pmOPO-BUF
20h 16m2 stops
$580American Airlines
Find Deal
Sun, Oct 19 - Tue, Nov 4
United Airlines Logo
7:23 pm - 9:45 amBUF-OPO
9h 22m1 stop
United Airlines Logo
12:35 pm - 10:58 pmOPO-BUF
15h 23m1 stop
$608United Airlines
Find Deal
Sun, Oct 19 - Tue, Nov 4
United Airlines Logo
6:00 am - 9:30 amBUF-OPO
22h 30m2 stops
United Airlines Logo
12:30 pm - 8:31 pmOPO-BUF
36h 01m2 stops
$686United Airlines
Find Deal
Sat, Mar 7 - Fri, Mar 13
United Airlines Logo
10:37 am - 11:40 amBUF-OPO
21h 03m2 stops
United Airlines Logo
6:00 am - 9:00 pmOPO-BUF
20h 00m2 stops
$687United Airlines
Find Deal
Fri, Oct 31 - Sat, Nov 8
Delta Logo
12:49 pm - 10:30 amBUF-OPO
17h 41m2 stops
Delta Logo
6:00 am - 11:39 pmOPO-BUF
22h 39m2 stops
$737Delta
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Fri, Oct 31 - Sat, Nov 8
Lufthansa Logo
12:15 pm - 9:30 amBUF-OPO
17h 15m1 stop
Lufthansa Logo
6:00 am - 10:58 pmOPO-BUF
21h 58m2 stops
$920Lufthansa
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Fri, Oct 31 - Sat, Nov 8
TAP AIR PORTUGAL Logo
6:19 pm - 3:00 pmBUF-OPO
15h 41m2 stops
TAP AIR PORTUGAL Logo
12:00 pm - 9:20 amOPO-BUF
26h 20m2 stops
$1,076TAP AIR PORTUGAL
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Sat, Dec 6 - Wed, Dec 10
Lufthansa Logo
12:15 pm - 9:30 amBUF-OPO
17h 15m1 stop
Lufthansa Logo
12:35 pm - 10:58 pmOPO-BUF
15h 23m1 stop
$1,122Lufthansa
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Fri, Oct 31 - Sat, Nov 8
Lufthansa Logo
12:15 pm - 9:30 amBUF-OPO
17h 15m1 stop
Lufthansa Logo
12:35 pm - 10:58 pmOPO-BUF
15h 23m1 stop
$1,217Lufthansa
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Fri, Oct 31 - Sat, Nov 8

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Oct 19
BUF7:23 pmBuffalo
9h 22m
1 stop
OPO9:45 amPorto
Nov 4
OPO6:00 amPorto
21h 58m
2 stops
BUF10:58 pmBuffalo
$552
Find similar
United Airlines
Oct 19
BUF7:23 pmBuffalo
9h 22m
1 stop
OPO9:45 amPorto
Nov 4
OPO12:35 pmPorto
15h 23m
1 stop
BUF10:58 pmBuffalo
$608
Find similar
United Airlines
Mar 7
BUF6:00 amBuffalo
22h 30m
2 stops
OPO9:30 amPorto
Mar 13
OPO12:30 pmPorto
36h 01m
2 stops
BUF8:31 pmBuffalo
$686
Find similar

Lufthansa flights from Buffalo to Porto

Our best Lufthansa deals on Buffalo to Porto flight tickets
Lufthansa
Oct 31
BUF12:15 pmBuffalo
17h 15m
1 stop
OPO9:30 amPorto
Nov 8
OPO6:00 amPorto
21h 58m
2 stops
BUF10:58 pmBuffalo
$920
Find similar
Lufthansa
Oct 31
BUF12:15 pmBuffalo
17h 15m
1 stop
OPO9:30 amPorto
Nov 8
OPO12:35 pmPorto
15h 23m
1 stop
BUF10:58 pmBuffalo
$1,122
Find similar
Lufthansa
Oct 31
BUF12:15 pmBuffalo
17h 15m
1 stop
OPO9:30 amPorto
Nov 8
OPO12:35 pmPorto
15h 23m
1 stop
BUF10:58 pmBuffalo
$1,217
Find similar

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 September 16, 2025.
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

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 10/19

7:23 pm-9:45 am

1 stop9h 22m

Porto

Tue 11/4

6:00 am-10:58 pm

2 stops21h 58m

$552

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 10/19

11:12 am-11:40 am

2 stops19h 28m

Porto

Tue 11/4

8:20 am-11:36 pm

2 stops20h 16m

$580

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 10/19

7:23 pm-9:45 am

1 stop9h 22m

Porto

Tue 11/4

12:35 pm-10:58 pm

1 stop15h 23m

$608

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 3/7

6:00 am-9:30 am

2 stops22h 30m

Porto

Fri 3/13

12:30 pm-8:31 pm

2 stops36h 01m

$686

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 10/31

10:37 am-11:40 am

2 stops21h 03m

Porto

Sat 11/8

6:00 am-9:00 pm

2 stops20h 00m

$687

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 10/31

12:49 pm-10:30 am

2 stops17h 41m

Porto

Sat 11/8

6:00 am-11:39 pm

2 stops22h 39m

$737

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 10/31

12:15 pm-9:30 am

1 stop17h 15m

Porto

Sat 11/8

6:00 am-10:58 pm

2 stops21h 58m

$920

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sat 12/6

6:19 pm-3:00 pm

2 stops15h 41m

Porto

Wed 12/10

12:00 pm-9:20 am

2 stops26h 20m

$1,076

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 10/31

12:15 pm-9:30 am

1 stop17h 15m

Porto

Sat 11/8

12:35 pm-10:58 pm

1 stop15h 23m

$1,122

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 10/31

12:15 pm-9:30 am

1 stop17h 15m

Porto

Sat 11/8

12:35 pm-10:58 pm

1 stop15h 23m

$1,217

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

What is the cheapest time of day to depart on your flight to Porto?

In the morning is the cheapest time of day to fly from Buffalo to Porto when you can find flight prices for as low as $742. Flying to Porto in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $994 on average. Flights to Porto from Buffalo in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Buffalo to Porto flights?

You could potentially save up to 3% 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

Direct flights

None
There are no direct flights from Buffalo to Porto. There are no popular flight routes from Buffalo to Porto.
Search flight deals

  • How far is Buffalo to Porto by plane?

    There are 3495.8 mi between Buffalo and Porto. Flights usually cover this in 9h 22m, 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
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Guimarães
Esposende
Lamego
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Mira

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.

An easier way to manage your Porto trip

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