Latest deals
Insights
When to book
FAQs
Price Alerts

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
6:00 am - 11:21 pm
OPO
-
BUF
22h 21m
2 stops
$717United Airlines
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
10:30 am - 9:30 am
BUF
-
OPO
18h 00m
2 stops
United Airlines Logo
12:35 pm - 9:29 am
OPO
-
BUF
25h 54m
2 stops
$721United Airlines
Sun, Nov 15 - Wed, Nov 18
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
Sun, Nov 15 - Wed, Nov 18
KLM Logo
10:00 am - 10:30 am
BUF
-
OPO
19h 30m
1 stop
KLM Logo
5:00 am - 6:55 pm
OPO
-
BUF
18h 55m
2 stops
$856KLM
Mon, Aug 10 - Tue, Aug 25
Multiple Airlines Logo
6:55 am - 7:00 am
BUF
-
OPO
19h 05m
2 stops
Multiple Airlines Logo
6:00 am - 11:44 pm
OPO
-
BUF
22h 44m
2 stops
$861Multiple Airlines
Mon, Aug 17 - Tue, Sep 1
Multiple Airlines Logo
7:59 pm - 3:25 pm
BUF
-
OPO
14h 26m
2 stops
Multiple Airlines Logo
5:00 am - 6:55 pm
OPO
-
BUF
18h 55m
2 stops
$862Multiple Airlines
Mon, Aug 10 - Tue, Aug 25
United Airlines Logo
6:00 am - 6:55 am
BUF
-
OPO
19h 55m
1 stop
United Airlines Logo
6:00 am - 6:58 pm
OPO
-
BUF
17h 58m
2 stops
$869United Airlines
Mon, Aug 17 - Tue, Sep 1
United Airlines Logo
6:00 am - 6:55 am
BUF
-
OPO
19h 55m
1 stop
United Airlines Logo
9:00 am - 6:58 pm
OPO
-
BUF
14h 58m
1 stop
$876United Airlines
Mon, Aug 10 - Tue, Aug 25
Delta Logo
10:20 am - 10:30 am
BUF
-
OPO
19h 10m
1 stop
Delta Logo
1:05 pm - 12:40 am
OPO
-
BUF
16h 35m
1 stop
$877Delta
Mon, Aug 17 - Tue, Sep 1
Multiple Airlines Logo
6:55 am - 7:00 am
BUF
-
OPO
19h 05m
2 stops
Multiple Airlines Logo
12:15 pm - 9:28 am
OPO
-
BUF
26h 13m
3 stops
$884Multiple Airlines
Mon, Aug 17 - Tue, Sep 1

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Buffalo to Porto

Our best Delta deals on Buffalo to Porto flight tickets
Delta
Aug 17
BUF10:20 amBuffalo
19h 10m
1 stop
OPO10:30 amPorto
Sep 1
OPO1:05 pmPorto
16h 35m
1 stop
BUF12:40 amBuffalo
$877
Delta
Aug 10
BUF10:00 amBuffalo
19h 30m
1 stop
OPO10:30 amPorto
Aug 17
OPO12:15 pmPorto
17h 25m
1 stop
BUF12:40 amBuffalo
$1,280

Air Canada flights from Buffalo to Porto

Our best Air Canada deals on Buffalo to Porto flight tickets
Air Canada
Aug 17
BUF6:55 amBuffalo
19h 05m
3 stops
OPO7:00 amPorto
Sep 1
OPO12:15 pmPorto
26h 13m
3 stops
BUF9:28 amBuffalo
$1,218
Air Canada
Aug 22
BUF6:55 amBuffalo
19h 05m
3 stops
OPO7:00 amPorto
Aug 29
OPO11:20 amPorto
27h 08m
3 stops
BUF9:28 amBuffalo
$1,457
Air Canada
Aug 10
BUF7:00 amBuffalo
19h 00m
3 stops
OPO7:00 amPorto
Aug 25
OPO12:15 pmPorto
26h 13m
3 stops
BUF9:28 amBuffalo
$1,575

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 11, 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

Sun 11/15

10:41 am-9:30 am

1 stop17h 49m

Porto

Wed 11/18

6:00 am-11:21 pm

2 stops22h 21m

$717

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 11/15

10:30 am-9:30 am

2 stops18h 00m

Porto

Wed 11/18

12:35 pm-9:29 am

2 stops25h 54m

$721

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Sun 11/15

10:41 am-9:30 am

1 stop17h 49m

Porto

Wed 11/18

12:35 pm-11:21 pm

1 stop15h 46m

$726

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/10

10:00 am-10:30 am

1 stop19h 30m

Porto

Tue 8/25

5:00 am-6:55 pm

2 stops18h 55m

$856

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/17

6:55 am-7:00 am

2 stops19h 05m

Porto

Tue 9/1

6:00 am-11:44 pm

2 stops22h 44m

$861
Quickest round-trip

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/10

7:59 pm-3:25 pm

2 stops14h 26m

Porto

Tue 8/25

5:00 am-6:55 pm

2 stops18h 55m

$862

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/17

6:00 am-6:55 am

1 stop19h 55m

Porto

Tue 9/1

6:00 am-6:58 pm

2 stops17h 58m

$869

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/10

6:00 am-6:55 am

1 stop19h 55m

Porto

Tue 8/25

9:00 am-6:58 pm

1 stop14h 58m

$876

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/17

10:20 am-10:30 am

1 stop19h 10m

Porto

Tue 9/1

1:05 pm-12:40 am

1 stop16h 35m

$877

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Mon 8/17

6:55 am-7:00 am

2 stops19h 05m

Porto

Tue 9/1

12:15 pm-9:28 am

3 stops26h 13m

$884

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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

28h 20m

Direct flights

None
The fastest flight from Buffalo to Porto takes 28h 20m
There are no direct flights from Buffalo to Porto. There are no popular flight routes from Buffalo to Porto.
Search flight deals

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 28h 20m, 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.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 8/10
Mon 8/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal