$332 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 5/18. 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
Lisbon2 stops$545
Porto
Porto2 stops$666
Lisbon
Lisbon2 stops$545
Porto
Porto2 stops$666

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, Apr 20 - Thu, Apr 30
Delta Logo
12:09 pm - 11:15 am
BUF
-
LIS
18h 06m
2 stops
Delta Logo
11:55 am - 12:50 am
LIS
-
BUF
17h 55m
2 stops
$545Delta
Mon, Apr 20 - Thu, Apr 30
KLM Logo
7:00 am - 8:00 am
BUF
-
LIS
20h 00m
1 stop
KLM Logo
11:55 am - 12:50 am
LIS
-
BUF
17h 55m
2 stops
$569KLM
Sat, Apr 18 - Tue, Apr 28
British Airways Logo
10:44 am - 9:05 am
BUF
-
LIS
17h 21m
1 stop
British Airways Logo
11:05 am - 11:49 pm
LIS
-
BUF
17h 44m
1 stop
$596British Airways
Sat, Apr 18 - Tue, Apr 28
Multiple Airlines Logo
3:01 pm - 8:05 pm
BUF
-
LIS
24h 04m
2 stops
Multiple Airlines Logo
7:10 am - 9:36 pm
LIS
-
BUF
19h 26m
2 stops
$631Multiple Airlines
Sat, Apr 18 - Tue, Apr 28
Air France Logo
7:59 pm - 8:00 am
BUF
-
LIS
31h 01m
1 stop
Air France Logo
5:35 am - 6:51 pm
LIS
-
BUF
18h 16m
2 stops
$632Air France
Sat, Apr 18 - Tue, Apr 28
Air France Logo
7:59 pm - 8:00 am
BUF
-
LIS
31h 01m
1 stop
Air France Logo
5:35 am - 6:51 pm
LIS
-
BUF
18h 16m
2 stops
$642Air France
Sat, Apr 18 - Tue, Apr 28
Multiple Airlines Logo
3:01 pm - 8:05 pm
BUF
-
LIS
24h 04m
2 stops
Multiple Airlines Logo
7:10 am - 9:36 pm
LIS
-
BUF
19h 26m
2 stops
$651Multiple Airlines
Sat, Apr 18 - Tue, Apr 28
British Airways Logo
10:44 am - 9:05 am
BUF
-
LIS
17h 21m
1 stop
British Airways Logo
4:30 pm - 11:19 pm
LIS
-
BUF
35h 49m
2 stops
$659British Airways
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
7:45 pm - 11:15 am
BUF
-
OPO
34h 30m
2 stops
United Airlines Logo
12:05 pm - 8:43 pm
OPO
-
BUF
37h 38m
2 stops
$1,102United Airlines
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
6:55 pm - 9:45 am
BUF
-
OPO
9h 50m
1 stop
United Airlines Logo
6:00 am - 10:05 am
OPO
-
BUF
33h 05m
2 stops
$1,148United Airlines
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 February, when tickets cost $640 (return) on average. On the other hand, the most expensive months are June and August, when the average cost of round-trip tickets is $1,371 and $1,177 respectively.

Good to know

Low seasonAugust
Cheapest flight$332
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 1% 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 9352 reviews
7.1Entertainment
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

2.0 MediocreAnonymous, Feb 2026
IAH - GUA
Read more United Airlines reviews

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

First time flying Business with Tap, I think it was a very good experience. It beats many domestic US carriers, the food options were really great, authentic Portuguese food, wines & deserts. Next time will do the free 24-48 hour stopover in Lisbon or Porto for sure.

We upgraded to business class. Nice seat with lots of room but otherwise not impressive.

Delayed departure Madrid to Lisboa and my luggage no arrived

this flight was awful from pre-boarding to on the plane. There needs to be more coordination between TAP and My Way. We were in first class and I am handicapped. BY the time we got on the plane there was no place for our baggage and the crew did not handle the situation well. They gave us an argument and said that we'd have to have it checked. Then, after I complained they moved some people's bags to put our small carry ons several seats back of our seats which were in Row 4.

Late. Lack of updates. Rude hostesses. Terrible food. Lack of headphones.

Flight was delayed but crew gave little to no communication, then “began boarding” but really just had everyone stand up and wait for an hour without any news or updates, as if we were going to start boarding at any second. Total chaos. Seemed like this was their first time boarding a plane. When we arrived at our destination, we waited for over an hour for the baggage claim belt to even turn on. Probably waited at baggage claim for our luggage for close to two hours. Everyone was very confused and of course we all worried that the luggage was lost. Again, zero communication and everyone we asked just said “I don’t know.” So we were left wondering whether to wait, or file a missing baggage claim, or check the other baggage claim belts (which we did every fifteen-twenty minutes because we were just confused). Lack of communication throughout the experience was a huge issue.

The value is there, but the layovers in Lisbon were not great. The passport control was so bad that a 2 hour layover became very tight and on the return the Terminal was barebones which made it a long 3 hours.

From Casablanca to Lisbon our baggage 2 pound over they want me to pay $120 for 2 pound which unexpected we are two family 8 of us they counters lady her customer service is not good I fly frequently for my business next time fly with TAP Air I will think twice

Booked business with TAP from LAX to Cabo Verde - overall ok, but just doesn’t feel like business class. More of a budget airline

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

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

Information on your arrival and departure airports