Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Buffalo to Porto from $399

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 3/18. 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
0 bags

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

Find the cheapest flights from Buffalo to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m1 stop
United Airlines Logo
6:00 am - 8:51 pm
OPO
-
BUF
19h 51m2 stops
$486United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m1 stop
United Airlines Logo
6:00 am - 5:51 pm
OPO
-
BUF
16h 51m2 stops
$487United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:07 am - 9:30 am
BUF
-
OPO
22h 23m2 stops
United Airlines Logo
6:00 am - 5:51 pm
OPO
-
BUF
16h 51m2 stops
$491United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:07 am - 9:30 am
BUF
-
OPO
22h 23m2 stops
United Airlines Logo
6:00 am - 5:51 pm
OPO
-
BUF
16h 51m2 stops
$492United Airlines
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
11:51 am - 10:25 am
BUF
-
OPO
17h 34m2 stops
Multiple Airlines Logo
5:00 am - 10:57 pm
OPO
-
BUF
22h 57m2 stops
$493Multiple Airlines
Thu, Feb 5 - Tue, Feb 17
Multiple Airlines Logo
11:51 am - 10:25 am
BUF
-
OPO
17h 34m2 stops
Multiple Airlines Logo
5:00 am - 5:31 pm
OPO
-
BUF
17h 31m2 stops
$494Multiple Airlines
Thu, Feb 5 - Tue, Feb 17
United Airlines Logo
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m1 stop
United Airlines Logo
12:35 pm - 9:02 pm
OPO
-
BUF
13h 27m1 stop
$495United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:25 pm - 9:30 am
BUF
-
OPO
10h 05m1 stop
United Airlines Logo
12:35 pm - 9:02 pm
OPO
-
BUF
13h 27m1 stop
$496United Airlines
Wed, Feb 25 - Sun, Mar 1
Lufthansa Logo
7:30 pm - 11:40 pm
BUF
-
OPO
24h 10m2 stops
Lufthansa Logo
12:35 pm - 11:56 pm
OPO
-
BUF
15h 21m1 stop
$504Lufthansa
Fri, Mar 20 - Thu, Mar 26
United Airlines Logo
6:07 am - 2:45 pm
BUF
-
OPO
28h 38m2 stops
United Airlines Logo
6:00 am - 11:42 pm
OPO
-
BUF
21h 42m2 stops
$507United Airlines
Thu, Mar 19 - Thu, Mar 26

Lufthansa flights from Buffalo to Porto

Our best Lufthansa deals on Buffalo to Porto flight tickets
Lufthansa
Mar 20
BUF7:30 pmBuffalo
24h 10m
2 stops
OPO11:40 pmPorto
Mar 26
OPO12:35 pmPorto
15h 21m
1 stop
BUF11:56 pmBuffalo
$504
Find similar
Lufthansa
Mar 16
BUF5:54 pmBuffalo
11h 36m
1 stop
OPO9:30 amPorto
Mar 31
OPO12:35 pmPorto
15h 58m
1 stop
BUF11:33 pmBuffalo
$532
Find similar
Lufthansa
Mar 20
BUF7:30 pmBuffalo
37h 20m
2 stops
OPO12:50 pmPorto
Apr 1
OPO6:20 amPorto
17h 29m
2 stops
BUF6:49 pmBuffalo
$533
Find similar

Delta flights from Buffalo to Porto

Our best Delta deals on Buffalo to Porto flight tickets
Delta
Mar 19
BUF2:59 pmBuffalo
27h 26m
2 stops
OPO10:25 pmPorto
Apr 1
OPO5:00 amPorto
22h 55m
2 stops
BUF10:55 pmBuffalo
$535
Find similar
Delta
Mar 19
BUF2:59 pmBuffalo
27h 26m
2 stops
OPO10:25 pmPorto
Mar 31
OPO5:00 amPorto
17h 09m
2 stops
BUF5:09 pmBuffalo
$536
Find similar
Delta
Mar 18
BUF3:56 pmBuffalo
14h 34m
2 stops
OPO10:30 amPorto
Mar 30
OPO4:20 pmPorto
27h 54m
2 stops
BUF3:14 pmBuffalo
$549
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 January 2, 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

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

6:00 am-8:51 pm

2 stops19h 51m

$486

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

6:00 am-5:51 pm

2 stops16h 51m

$487

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:07 am-9:30 am

2 stops22h 23m

Porto

Sun 3/1

6:00 am-5:51 pm

2 stops16h 51m

$491

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:07 am-9:30 am

2 stops22h 23m

Porto

Sun 3/1

6:00 am-5:51 pm

2 stops16h 51m

$492

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 2/5

11:51 am-10:25 am

2 stops17h 34m

Porto

Tue 2/17

5:00 am-10:57 pm

2 stops22h 57m

$493

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 2/5

11:51 am-10:25 am

2 stops17h 34m

Porto

Tue 2/17

5:00 am-5:31 pm

2 stops17h 31m

$494

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

12:35 pm-9:02 pm

1 stop13h 27m

$495

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Wed 2/25

6:25 pm-9:30 am

1 stop10h 05m

Porto

Sun 3/1

12:35 pm-9:02 pm

1 stop13h 27m

$496

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Fri 3/20

7:30 pm-11:40 pm

2 stops24h 10m

Porto

Thu 3/26

12:35 pm-11:56 pm

1 stop15h 21m

$504

BuffaloPorto

BUF - OPO

BUFOPO

Buffalo

Thu 3/19

6:07 am-2:45 pm

2 stops28h 38m

Porto

Thu 3/26

6:00 am-11:42 pm

2 stops21h 42m

$507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 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

Fastest flight time

9h 50m

Direct flights

None
The fastest flight from Buffalo to Porto takes 9h 50m
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 50m, 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
Matosinhos
Aveiro
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
Arcos de Valdevez
Pinhao
Ponte de Lima
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

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
Sun 2/1
Sun 2/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal