$358 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 4/26. 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$496
Porto
Porto1 stop$863
Funchal
Funchal2 stops$835
Lisbon
Lisbon1 stop$496
Porto
Porto1 stop$863
Funchal
Funchal2 stops$835

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

Tue, Feb 3 - Wed, Feb 11
KLM Logo
7:00 am - 8:00 amBUF-LIS
20h 00m1 stop
KLM Logo
5:00 am - 4:59 pmLIS-BUF
16h 59m2 stops
$496KLM
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Sun, Feb 8 - Sun, Feb 15
Delta Logo
2:54 pm - 8:00 amBUF-LIS
12h 06m1 stop
Delta Logo
10:00 am - 7:19 pmLIS-BUF
14h 19m1 stop
$497Delta
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Tue, Feb 3 - Wed, Feb 11
Multiple Airlines Logo
7:45 pm - 3:10 pmBUF-LIS
14h 25m2 stops
Multiple Airlines Logo
11:25 am - 12:16 amLIS-BUF
17h 51m2 stops
$500Multiple Airlines
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Tue, Feb 3 - Wed, Feb 11
KLM Logo
11:51 am - 8:00 amBUF-LIS
15h 09m1 stop
KLM Logo
10:00 am - 12:16 amLIS-BUF
19h 16m1 stop
$506KLM
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Thu, Jan 8 - Wed, Jan 14
American Airlines Logo
4:01 pm - 9:05 amBUF-LIS
12h 04m1 stop
American Airlines Logo
11:05 am - 11:41 pmLIS-BUF
17h 36m2 stops
$510American Airlines
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Wed, Dec 3 - Wed, Dec 10
United Airlines Logo
10:10 am - 10:15 amBUF-LIS
19h 05m1 stop
United Airlines Logo
5:00 am - 7:04 pmLIS-BUF
19h 04m2 stops
$526United Airlines
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Wed, Dec 3 - Wed, Dec 10
United Airlines Logo
10:10 am - 10:15 amBUF-LIS
19h 05m1 stop
United Airlines Logo
5:00 am - 7:04 pmLIS-BUF
19h 04m2 stops
$527United Airlines
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Fri, Dec 5 - Tue, Dec 9
TAP AIR PORTUGAL Logo
11:48 am - 9:10 amBUF-FNC
16h 22m2 stops
TAP AIR PORTUGAL Logo
6:15 pm - 6:39 pmFNC-BUF
29h 24m2 stops
$835TAP AIR PORTUGAL
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Sat, Dec 6 - Sat, Dec 13
TAP AIR PORTUGAL Logo
10:38 am - 8:25 pmBUF-FNC
28h 47m2 stops
TAP AIR PORTUGAL Logo
4:10 am - 9:30 pmFNC-BUF
46h 20m2 stops
$912TAP AIR PORTUGAL
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Wed, Apr 29 - Wed, May 6
Multiple Airlines Logo
5:29 pm - 10:10 amBUF-OPO
11h 41m1 stop
Multiple Airlines Logo
6:10 pm - 9:39 amOPO-BUF
20h 29m1 stop
$1,019Multiple Airlines
Find Deal
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 $604 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,371 and $1,275 respectively.

Good to know

Low seasonJuly
Cheapest flight$358
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 2% increase in price.
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.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally in the afternoon, when round-trip flights cost $916 on average. Morning departures are around 7% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,163.

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 9017 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

4.0 OkayThomas, Nov 2025SFO - KOA
Read more United Airlines reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

TAP‘s flight attendants seem to be among the least ambitious of all the international flight crews we’ve flown with. . When we left US and went to Portugal, and when we returned from Portugal, flight attendants were not very visible. Then did not offer frequent water breaks and when we had to go back to request water, I was almost an imposition. Meal quality was just average. The dinners were fine. Breakfast wraps were presented soggy.

Did not enjoy the meal provided. The aircraft was dirty. For instance, the screen seemed to have been cleaned with a dirty rag. Disgusting.

The business class seats were smaller and closer together than other airlines.

Boarding- Good Seat Comfort - OK Crew - Good Food - Mediocre On Time - Very Good

Didn't like much. Wheelchair assistance was almost nonexistent. No one at TAP check in process helpful. On the plane, stewards were not friendly and disorganized. Food was terrible for 8 hr flight. We were skipped at snack time and even though we tried to get attention using overhead call system no one even looked up at us to acknowledge. Being at the back of first section and by the lavatory we only were able to request when they came to pick up everyone else's garbage and they were nonchalant...no apology or even choice. The 1/2 half bread with slice of cheese was a waste. Deplaning was horrible but I'll blame lisbon airport for that. Plane left late at made good time still arrived about 15 behind schedule and for using remote deplaning and bus to terminal took another 20 min to gate. Those with connections were highly stressed. Took us 2 hrs from landing to get to ground transportation and exit airport. And that was with wheelchair assistance.

Bad boarding, threat to force bag check mid journey, lines, late, buses, more waiting awful end to end.

Check in was excellent thanks to the team at the check in counter. I was disappointed to see that one has to pay for coffee on the flight. This is the first time I have seen that after 60 years of flying.

Our steward Margarida who served us from Lisbon to Boston was absolutely fantastic! She deserves a raise. Conscientious and thorough as well as showing appropriate attention for every need.

An old airplane with very uncomfortable seats in the Comfort “class! Small, narrow, and hard seat. Entertainment options are inferior, old movies. Boarding started at the back of the airplane, as we entered the aircraft last instead of after business class, risking the possibility that the comfort section would not have room for carry-on in the overhead bin. The food was ok. White wine was terrible. Overall, the flight felt worse than cheap airliners, and the price was as high as premium carriers.

I will avoid TAP if I can, the ground experience was very poor with bad behaviour from the ground crew and it was only a bit better on the aircraft.

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

Information on your arrival and departure airports