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Cheap flights from Buffalo to Porto from $447

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 2/16. 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 - 9:30 amBUF-OPO
22h 30m2 stops
United Airlines Logo
12:00 pm - 11:26 pmOPO-BUF
16h 26m2 stops
$727United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
6:45 pm - 9:30 amBUF-OPO
10h 45m1 stop
United Airlines Logo
6:00 am - 5:00 pmOPO-BUF
16h 00m2 stops
$773United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
6:45 pm - 9:30 amBUF-OPO
10h 45m1 stop
Lufthansa Logo
12:35 pm - 10:37 pmOPO-BUF
15h 02m1 stop
$983Lufthansa
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Fri, Mar 27 - Tue, Mar 31
TAP AIR PORTUGAL Logo
6:05 am - 10:00 pmBUF-OPO
34h 55m2 stops
TAP AIR PORTUGAL Logo
4:55 pm - 8:29 amOPO-BUF
43h 34m2 stops
$1,010TAP AIR PORTUGAL
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Sun, Dec 14 - Sat, Mar 21
TAP AIR PORTUGAL Logo
5:30 pm - 5:00 pmBUF-OPO
19h 30m2 stops
TAP AIR PORTUGAL Logo
6:00 pm - 7:12 pmOPO-BUF
30h 12m2 stops
$1,178TAP AIR PORTUGAL
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Fri, Oct 31 - Tue, Nov 4
TAP AIR PORTUGAL Logo
10:08 am - 7:00 pmBUF-OPO
27h 52m2 stops
TAP AIR PORTUGAL Logo
8:05 pm - 9:35 amOPO-BUF
41h 30m2 stops
$1,274TAP AIR PORTUGAL
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Wed, Dec 17 - Fri, Mar 27
Multiple Airlines Logo
3:58 pm - 11:45 amBUF-OPO
14h 47m2 stops
Multiple Airlines Logo
12:25 pm - 10:44 pmOPO-BUF
39h 19m2 stops
$1,984Multiple Airlines
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Fri, Dec 26 - Sat, Jan 3
Multiple Airlines Logo
2:50 pm - 9:15 pmBUF-OPO
25h 25m3 stops
Multiple Airlines Logo
9:55 pm - 11:54 pmOPO-BUF
30h 59m3 stops
$2,631Multiple Airlines
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Fri, Dec 26 - Sat, Jan 3

TAP AIR PORTUGAL flights from Buffalo to Porto

Our best TAP AIR PORTUGAL deals on Buffalo to Porto flight tickets
TAP AIR PORTUGAL
Dec 14
BUF6:05 amBuffalo
34h 55m
2 stops
OPO10:00 pmPorto
Mar 21
OPO4:55 pmPorto
43h 34m
2 stops
BUF8:29 amBuffalo
$1,010
Find similar
TAP AIR PORTUGAL
Oct 30
BUF5:30 pmBuffalo
19h 30m
2 stops
OPO5:00 pmPorto
Nov 4
OPO6:00 pmPorto
30h 12m
2 stops
BUF7:12 pmBuffalo
$1,107
Find similar
TAP AIR PORTUGAL
Oct 31
BUF5:30 pmBuffalo
19h 30m
2 stops
OPO5:00 pmPorto
Nov 4
OPO6:00 pmPorto
30h 12m
2 stops
BUF7:12 pmBuffalo
$1,178
Find similar

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Mar 27
BUF7:00 amBuffalo
22h 30m
2 stops
OPO9:30 amPorto
Mar 31
OPO12:00 pmPorto
16h 26m
2 stops
BUF11:26 pmBuffalo
$727
Find similar
United Airlines
Mar 27
BUF6:45 pmBuffalo
10h 45m
1 stop
OPO9:30 amPorto
Mar 31
OPO6:00 amPorto
16h 00m
2 stops
BUF5:00 pmBuffalo
$773
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 October 22, 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

Fri 3/27

7:00 am-9:30 am

2 stops22h 30m

Porto

Tue 3/31

12:00 pm-11:26 pm

2 stops16h 26m

$727

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/27

6:45 pm-9:30 am

1 stop10h 45m

Porto

Tue 3/31

6:00 am-5:00 pm

2 stops16h 00m

$773

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/27

6:45 pm-9:30 am

1 stop10h 45m

Porto

Tue 3/31

12:35 pm-10:37 pm

1 stop15h 02m

$983

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 12/14

6:05 am-10:00 pm

2 stops34h 55m

Porto

Sat 3/21

4:55 pm-8:29 am

2 stops43h 34m

$1,010

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 10/31

5:30 pm-5:00 pm

2 stops19h 30m

Porto

Tue 11/4

6:00 pm-7:12 pm

2 stops30h 12m

$1,178

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 12/17

10:08 am-7:00 pm

2 stops27h 52m

Porto

Fri 3/27

8:05 pm-9:35 am

2 stops41h 30m

$1,274

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 12/26

3:58 pm-11:45 am

2 stops14h 47m

Porto

Sat 1/3

12:25 pm-10:44 pm

2 stops39h 19m

$1,984

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 12/26

2:50 pm-9:15 pm

3 stops25h 25m

Porto

Sat 1/3

9:55 pm-11:54 pm

3 stops30h 59m

$2,631

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 2/16

12:25 pm-10:30 am

2 stops17h 05m

$447

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 2/13

4:33 pm-7:00 pm

2 stops21h 27m

$498

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

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.
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  • How far is Buffalo to Porto by plane?

    There are 3495.8 mi between Buffalo and Porto. Flights usually cover this in 10h 45m, 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
Aveiro
Braga
Matosinhos
Esposende
Lamego
Guimarães
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
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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