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Cheap flights from Buffalo to Porto from $284

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 10/11. 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
8:55 pm - 9:30 amBUF  Buffalo-OPO Porto
31h 35m1 stop Newark
United Airlines Logo
6:00 am - 8:36 pmOPO  Porto-BUF Buffalo
19h 36m2 stops Frankfurt am Main Chicago O'Hare Intl
$722United Airlines
Mon, Nov 2 - Fri, Nov 6
United Airlines Logo
8:55 pm - 9:30 amBUF  Buffalo-OPO Porto
31h 35m1 stop Newark
United Airlines Logo
12:35 pm - 10:59 pmOPO  Porto-BUF Buffalo
15h 24m1 stop Newark
$732United Airlines
Mon, Nov 2 - Fri, Nov 6
United Airlines Logo
5:58 pm - 9:30 amBUF  Buffalo-OPO Porto
34h 32m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 8:36 pmOPO  Porto-BUF Buffalo
19h 36m2 stops Frankfurt am Main Chicago O'Hare Intl
$732United Airlines
Mon, Nov 2 - Fri, Nov 6
United Airlines Logo
7:52 pm - 9:30 amBUF  Buffalo-OPO Porto
32h 38m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
6:00 am - 9:42 amOPO  Porto-BUF Buffalo
32h 42m2 stops Frankfurt am Main Chicago O'Hare Intl
$732United Airlines
Mon, Nov 2 - Fri, Nov 6
British Airways Logo
6:47 pm - 7:10 pmBUF  Buffalo-OPO Porto
19h 23m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
8:20 am - 9:40 pmOPO  Porto-BUF Buffalo
18h 20m2 stops Madrid Barajas Chicago O'Hare Intl
$760British Airways
Fri, Nov 6 - Wed, Nov 11
Delta Logo
11:20 am - 9:05 amBUF  Buffalo-OPO Porto
16h 45m1 stop New York John F Kennedy Intl
Delta Logo
5:00 am - 11:59 pmOPO  Porto-BUF Buffalo
23h 59m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$769Delta
Fri, Nov 6 - Wed, Nov 11
Iberia Logo
6:56 pm - 11:45 amBUF  Buffalo-OPO Porto
35h 49m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
8:40 pm - 8:56 pmOPO  Porto-BUF Buffalo
29h 16m2 stops Madrid Barajas Boston Logan Intl
$1,014Iberia
Sat, Sep 12 - Sat, Sep 19
Turkish Airlines Logo
7:50 pm - 9:40 amBUF  Buffalo-OPO Porto
32h 50m2 stops New York John F Kennedy Intl Istanbul
Turkish Airlines Logo
4:40 pm - 11:50 pmOPO  Porto-BUF Buffalo
36h 10m2 stops Istanbul New York John F Kennedy Intl
$1,154Turkish Airlines
Wed, Sep 16 - Thu, Oct 8
Delta Logo
10:00 am - 10:55 amBUF  Buffalo-OPO Porto
19h 55m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
5:00 am - 7:08 pmOPO  Porto-BUF Buffalo
19h 08m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$1,196Delta
Tue, Sep 1 - Mon, Sep 7
TAP AIR PORTUGAL Logo
9:15 am - 7:00 pmBUF  Buffalo-OPO Porto
28h 45m2 stops New York John F Kennedy Intl Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
5:50 pm - 12:08 amOPO  Porto-BUF Buffalo
11h 18m1 stop Boston Logan Intl
$1,200TAP AIR PORTUGAL
Tue, Sep 1 - Mon, Sep 7

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Turkish Airlines flights from Buffalo to Porto

Our best Turkish Airlines deals on Buffalo to Porto flight tickets
Turkish Airlines
Sep 16
BUF7:50 pmBuffalo
32h 50m
2 stops
OPO9:40 amPorto
Oct 8
OPO4:40 pmPorto
36h 10m
2 stops
BUF11:50 pmBuffalo
$1,154
Turkish Airlines
Dec 24
BUF6:10 amBuffalo
22h 45m
2 stops
OPO9:55 amPorto
Jan 3
OPO4:25 pmPorto
28h 36m
2 stops
BUF4:01 pmBuffalo
$2,300

United Airlines flights from Buffalo to Porto

Our best United Airlines deals on Buffalo to Porto flight tickets
United Airlines
Nov 2
BUF8:55 pmBuffalo
31h 35m
1 stop
OPO9:30 amPorto
Nov 6
OPO6:00 amPorto
19h 36m
2 stops
BUF8:36 pmBuffalo
$722
United Airlines
Nov 2
BUF7:52 pmBuffalo
32h 38m
2 stops
OPO9:30 amPorto
Nov 6
OPO6:00 amPorto
32h 42m
2 stops
BUF9:42 amBuffalo
$732
United Airlines
Nov 6
BUF6:00 amBuffalo
22h 30m
1 stop
OPO9:30 amPorto
Nov 11
OPO12:35 pmPorto
15h 24m
1 stop
BUF10:59 pmBuffalo
$782

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 August 6, 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 Buffalo - OPO Porto

BUFOPO

Buffalo

Mon 11/2

8:55 pm-9:30 am

1 stop31h 35m

Porto

Fri 11/6

6:00 am-8:36 pm

2 stops19h 36m

$722

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Mon 11/2

8:55 pm-9:30 am

1 stop31h 35m

Porto

Fri 11/6

12:35 pm-10:59 pm

1 stop15h 24m

$732

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Mon 11/2

5:58 pm-9:30 am

2 stops34h 32m

Porto

Fri 11/6

6:00 am-8:36 pm

2 stops19h 36m

$732

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Mon 11/2

7:52 pm-9:30 am

2 stops32h 38m

Porto

Fri 11/6

6:00 am-9:42 am

2 stops32h 42m

$732
Quickest round-trip

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Fri 11/6

6:47 pm-7:10 pm

2 stops19h 23m

Porto

Wed 11/11

8:20 am-9:40 pm

2 stops18h 20m

$760

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Fri 11/6

11:20 am-9:05 am

1 stop16h 45m

Porto

Wed 11/11

5:00 am-11:59 pm

2 stops23h 59m

$769

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Sat 9/12

6:56 pm-11:45 am

2 stops35h 49m

Porto

Sat 9/19

8:40 pm-8:56 pm

2 stops29h 16m

$1,014

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Wed 9/16

7:50 pm-9:40 am

2 stops32h 50m

Porto

Thu 10/8

4:40 pm-11:50 pm

2 stops36h 10m

$1,154

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Tue 9/1

10:00 am-10:55 am

2 stops19h 55m

Porto

Mon 9/7

5:00 am-7:08 pm

2 stops19h 08m

$1,196

BuffaloPorto

BUF Buffalo - OPO Porto

BUFOPO

Buffalo

Tue 9/1

9:15 am-7:00 pm

2 stops28h 45m

Porto

Mon 9/7

5:50 pm-12:08 am

1 stop11h 18m

$1,200

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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

19h 23m

Direct flights

None
The fastest flight from Buffalo to Porto takes 19h 23m
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 19h 23m, 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
Pinhao
Esposende
Lamego
Chaves
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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