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Cheap flights from Buffalo to Porto from $863

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 3/27. 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

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United Airlines Logo
6:45 pm - 9:30 amBUF-OPO
10h 45m1 stop
United Airlines Logo
6:00 am - 8:31 pmOPO-BUF
19h 31m2 stops
$863United Airlines
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Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:00 am - 9:30 amBUF-OPO
22h 30m2 stops
United Airlines Logo
6:00 am - 8:31 pmOPO-BUF
19h 31m2 stops
$867United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:00 am - 9:30 amBUF-OPO
22h 30m2 stops
United Airlines Logo
6:00 am - 6:14 pmOPO-BUF
17h 14m2 stops
$868United 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 - 10:36 pmOPO-BUF
15h 01m1 stop
$873Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
6:54 pm - 9:45 amBUF-OPO
9h 51m1 stop
United Airlines Logo
6:00 am - 6:14 pmOPO-BUF
17h 14m2 stops
$923United Airlines
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Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
10:50 am - 9:45 amBUF-OPO
17h 55m2 stops
United Airlines Logo
6:00 am - 8:31 pmOPO-BUF
19h 31m2 stops
$927United Airlines
Find Deal
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
10:50 am - 9:45 amBUF-OPO
17h 55m2 stops
United Airlines Logo
12:00 pm - 11:26 pmOPO-BUF
16h 26m2 stops
$928United Airlines
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Tue, Mar 31 - Tue, Apr 7
TAP AIR PORTUGAL Logo
12:25 pm - 5:00 pmBUF-OPO
23h 35m2 stops
TAP AIR PORTUGAL Logo
7:00 am - 10:57 pmOPO-BUF
20h 57m2 stops
$929TAP AIR PORTUGAL
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Wed, Apr 29 - Wed, May 6
Multiple Airlines Logo
5:29 pm - 10:10 amBUF-OPO
11h 41m1 stop
Multiple Airlines Logo
6:10 pm - 9:39 amOPO-BUF
20h 29m1 stop
$1,019Multiple Airlines
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Wed, Apr 29 - Wed, May 6
Lufthansa Logo
6:45 pm - 9:30 amBUF-OPO
10h 45m1 stop
Lufthansa Logo
12:35 pm - 10:36 pmOPO-BUF
15h 01m1 stop
$1,073Lufthansa
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Fri, Mar 27 - Tue, Mar 31

TAP AIR PORTUGAL flights from Buffalo to Porto

Our best TAP AIR PORTUGAL deals on Buffalo to Porto flight tickets
TAP AIR PORTUGAL
Apr 29
BUF12:25 pmBuffalo
23h 35m
2 stops
OPO5:00 pmPorto
May 6
OPO7:00 amPorto
20h 57m
2 stops
BUF10:57 pmBuffalo
$929
Find similar
TAP AIR PORTUGAL
Nov 17
BUF10:08 amBuffalo
21h 57m
2 stops
OPO1:05 pmPorto
Nov 21
OPO12:00 pmPorto
25h 59m
2 stops
BUF8:59 amBuffalo
$1,191
Find similar

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Mar 27
BUF6:45 pmBuffalo
10h 45m
1 stop
OPO9:30 amPorto
Mar 31
OPO6:00 amPorto
19h 31m
2 stops
BUF8:31 pmBuffalo
$863
Find similar
United Airlines
Mar 27
BUF7:00 amBuffalo
22h 30m
2 stops
OPO9:30 amPorto
Mar 31
OPO6:00 amPorto
19h 31m
2 stops
BUF8:31 pmBuffalo
$867
Find similar
United Airlines
Mar 27
BUF7:00 amBuffalo
22h 30m
2 stops
OPO9:30 amPorto
Mar 31
OPO6:00 amPorto
17h 14m
2 stops
BUF6:14 pmBuffalo
$868
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 November 13, 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

6:45 pm-9:30 am

1 stop10h 45m

Porto

Tue 3/31

6:00 am-8:31 pm

2 stops19h 31m

$863

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/27

7:00 am-9:30 am

2 stops22h 30m

Porto

Tue 3/31

6:00 am-8:31 pm

2 stops19h 31m

$867

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/27

7:00 am-9:30 am

2 stops22h 30m

Porto

Tue 3/31

6:00 am-6:14 pm

2 stops17h 14m

$868

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/27

6:45 pm-9:30 am

1 stop10h 45m

Porto

Tue 3/31

12:35 pm-10:36 pm

1 stop15h 01m

$873

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 3/31

6:54 pm-9:45 am

1 stop9h 51m

Porto

Tue 4/7

6:00 am-6:14 pm

2 stops17h 14m

$923

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 3/31

10:50 am-9:45 am

2 stops17h 55m

Porto

Tue 4/7

6:00 am-8:31 pm

2 stops19h 31m

$927

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Tue 3/31

10:50 am-9:45 am

2 stops17h 55m

Porto

Tue 4/7

12:00 pm-11:26 pm

2 stops16h 26m

$928

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 4/29

12:25 pm-5:00 pm

2 stops23h 35m

Porto

Wed 5/6

7:00 am-10:57 pm

2 stops20h 57m

$929

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 4/29

5:29 pm-10:10 am

1 stop11h 41m

Porto

Wed 5/6

6:10 pm-9:39 am

1 stop20h 29m

$1,019

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/27

6:45 pm-9:30 am

1 stop10h 45m

Porto

Tue 3/31

12:35 pm-10:36 pm

1 stop15h 01m

$1,073

Flights are sorted by cheapest round-trip flights first.

Sorted 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 1% 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 9h 51m, 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
Matosinhos
Braga
Lamego
Guimarães
Esposende
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.

An easier way to manage your Porto trip

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