$377 Find Cheap Flights from Buffalo to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Portugal departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Buffalo to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$840
Porto
Porto1 stop$890
Funchal
Funchal2 stops$981
Lisbon
Lisbon1 stop$840
Porto
Porto1 stop$890
Funchal
Funchal2 stops$981

Book Cheap Buffalo to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Portugal

Mon, Oct 12 - Thu, Oct 22
KLM Logo
7:00 am - 8:00 am
BUF
-
LIS
20h 00m
1 stop
KLM Logo
11:55 am - 11:50 pm
LIS
-
BUF
16h 55m
2 stops
$840KLM
Mon, Oct 12 - Thu, Oct 22
Delta Logo
11:15 am - 8:50 am
BUF
-
LIS
16h 35m
2 stops
Delta Logo
5:00 am - 6:58 pm
LIS
-
BUF
18h 58m
2 stops
$844Delta
Mon, Oct 12 - Thu, Oct 22
American Airlines Logo
7:40 pm - 3:45 pm
BUF
-
LIS
15h 05m
2 stops
American Airlines Logo
11:05 am - 4:53 pm
LIS
-
BUF
10h 48m
1 stop
$847American Airlines
Mon, Oct 12 - Thu, Oct 22
American Airlines Logo
10:44 am - 9:05 am
BUF
-
LIS
17h 21m
1 stop
American Airlines Logo
11:05 am - 4:53 pm
LIS
-
BUF
10h 48m
1 stop
$850American Airlines
Mon, Oct 12 - Thu, Oct 22
American Airlines Logo
6:05 am - 9:05 am
BUF
-
LIS
22h 00m
1 stop
American Airlines Logo
11:05 am - 4:53 pm
LIS
-
BUF
10h 48m
1 stop
$856American Airlines
Sun, Aug 16 - Sun, Aug 23
United Airlines Logo
7:04 pm - 6:55 am
BUF
-
OPO
30h 51m
1 stop
United Airlines Logo
12:15 pm - 9:14 am
OPO
-
BUF
49h 59m
2 stops
$890United Airlines
Sun, Aug 16 - Mon, Aug 24
Multiple Airlines Logo
3:50 pm - 10:25 am
BUF
-
OPO
13h 35m
1 stop
Multiple Airlines Logo
5:00 am - 3:11 pm
OPO
-
BUF
15h 11m
2 stops
$891Multiple Airlines
Sun, Aug 16 - Sat, Aug 22
United Airlines Logo
10:42 am - 9:45 am
BUF
-
OPO
18h 03m
1 stop
United Airlines Logo
11:20 am - 11:18 pm
OPO
-
BUF
16h 58m
2 stops
$902United Airlines
Sun, Aug 16 - Mon, Aug 24
Multiple Airlines Logo
7:15 pm - 3:30 pm
BUF
-
OPO
15h 15m
2 stops
Multiple Airlines Logo
5:00 am - 3:11 pm
OPO
-
BUF
15h 11m
2 stops
$969Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
TAP AIR PORTUGAL Logo
2:30 pm - 12:10 am
BUF
-
FNC
28h 40m
2 stops
TAP AIR PORTUGAL Logo
9:55 pm - 8:24 pm
FNC
-
BUF
27h 29m
2 stops
$981TAP AIR PORTUGAL
Booking Insights

KAYAK's insights & trends for Buffalo to Portugal flights

Get data-powered insights and trends into flights from Buffalo to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Buffalo to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to Portugal is October, when tickets cost $505 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,183 and $1,004 respectively.

Good to know

Low seasonJanuary
Cheapest flight$377
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Buffalo to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Buffalo to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Buffalo to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Buffalo to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Buffalo to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Buffalo to Portugal

 
Need help choosing which airline to fly with from Buffalo to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9683 reviews
7.3Comfort
8.1Crew
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

10.0 ExcellentEirene, May 2026
EWR - LHR
Read more United Airlines reviews

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

The flight crew were absolute rock stars. When they came to the gate they looked like royalty, so chic. They also were extremely kind. Food was good and I loved the lack of plastic waste. The flight was lovely and smooth.

We were unable to check in due to technical problems on TAP’s end. The flight was delayed forty minutes with no reason given. We received timely notice of the flight delay. We were also notified of a gate change. The new gate was at a different terminal. When we got to the new terminal, we learned that we had to go back to the old terminal first to check in. This information should have been included along with the gate change notification. Also unexplained, the steward skipped us when offering breakfast.

They left our luggage uncovered on tarmac in pouring rain during an hour delay of departure! At our final destination, we found ALL OF OUR CLOTHES/SHOES soaked all the way through!! Our 1st connection plane was a great business class accommodation but only 50 minutes long. Our 2nd connection from Lisbon (another delay with luggage uncovered on tarmac) had only the extra legroom and mediocre food in business class - no entertainment and no extra comfort seating. Will not use TAP Air Portugal again!

The food left a lot to be desired. The crew was great

Horrible experience at tbe check in ladie she was very racist ,she doesn't speak portuguese too and forced me to check in my carrion bag and I saw everyone with carrion bag inside anda lot of space ,she was rude unprofessional

Departed late. Flight crew some of the most professional I have ever experienced. First time we’ve flown this airline

No difference between business class and normal same seat everything same, waste of money

They allowed me to book the flight, which took quite an effort to find the best option for us, and then 2 months later, cancelled it because they didn't think 90 minutes was enough time to get between connections. Why let me book the flight in the first place? I am somewhat disappointed in Kayak and will be choosing other options in the future

Absolutely unacceptable level of service for a Business class: lousy drink and food options, disgusting food (inedible meat, watery rice, etc...), pathetic level of attentiveness from staff, Business class restrooms were not accessible for long periods because blocked of by staff...overall extremely disappointing, will NEVER fly Business on TAP again.

Everything you need to know for your flight from Buffalo to Portugal

Information on your arrival and departure airports