$376 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 3/12. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$494
Porto
Porto2 stops$492
Funchal
Funchal2 stops$835
Lisbon
Lisbon2 stops$494
Porto
Porto2 stops$492
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

Thu, Feb 5 - Tue, Feb 17
KLM Logo
12:14 pm - 10:25 am
BUF
-
OPO
17h 11m2 stops
KLM Logo
5:00 am - 7:00 pm
OPO
-
BUF
19h 00m2 stops
$492KLM
Tue, Feb 3 - Wed, Feb 11
British Airways Logo
11:21 am - 9:45 pm
BUF
-
LIS
29h 24m2 stops
British Airways Logo
11:05 am - 10:55 pm
LIS
-
BUF
16h 50m1 stop
$494British Airways
Tue, Feb 3 - Wed, Feb 11
Multiple Airlines Logo
7:45 pm - 3:10 pm
BUF
-
LIS
14h 25m2 stops
Multiple Airlines Logo
5:00 am - 5:54 pm
LIS
-
BUF
17h 54m2 stops
$500Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
American Airlines Logo
11:50 am - 8:50 am
BUF
-
LIS
16h 00m1 stop
American Airlines Logo
6:30 am - 11:48 pm
LIS
-
BUF
22h 18m2 stops
$504American Airlines
Thu, Feb 5 - Tue, Feb 17
American Airlines Logo
7:00 am - 7:40 am
BUF
-
OPO
19h 40m2 stops
American Airlines Logo
8:20 am - 10:21 pm
OPO
-
BUF
19h 01m2 stops
$510American Airlines
Sun, Feb 8 - Sun, Feb 15
United Airlines Logo
9:55 am - 8:10 am
BUF
-
LIS
17h 15m2 stops
United Airlines Logo
5:00 am - 9:01 pm
LIS
-
BUF
21h 01m2 stops
$577United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
9:55 am - 11:40 am
BUF
-
OPO
20h 45m2 stops
United Airlines Logo
6:00 am - 8:29 pm
OPO
-
BUF
19h 29m2 stops
$704United Airlines
Thu, Jan 29 - Mon, Feb 2
TAP AIR PORTUGAL Logo
10:00 am - 8:25 pm
BUF
-
FNC
29h 25m2 stops
TAP AIR PORTUGAL Logo
9:15 pm - 11:47 pm
FNC
-
BUF
31h 32m2 stops
$835TAP AIR PORTUGAL
Fri, May 1 - Mon, May 11
TAP AIR PORTUGAL Logo
5:29 pm - 2:30 pm
BUF
-
OPO
40h 01m2 stops
TAP AIR PORTUGAL Logo
6:05 pm - 9:39 am
OPO
-
BUF
20h 34m1 stop
$917TAP AIR PORTUGAL
Fri, May 1 - Mon, May 11
Multiple Airlines Logo
2:00 pm - 9:45 am
BUF
-
OPO
14h 45m1 stop
Multiple Airlines Logo
6:05 pm - 9:39 am
OPO
-
BUF
20h 34m1 stop
$1,342Multiple 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 $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 $1,161 respectively.

Good to know

Low seasonJuly
Cheapest flight$376
Best time to beat the crowds but there is an average 8% 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 9095 reviews
6.6Food
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

10.0 ExcellentMichele, Dec 2025
RSW - ORD
Read more United Airlines reviews

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

I like the price. I dislike the website where I wanted to ask questions about the unusual high prices of the luggage fees. I called the toll free number from the United States and I cannot get through. You should test your own toll free website for info and you will know what I am writing about.

Wonderful just hope the had more direct flights to Boston

Boarding process was fast and efficient. Short flight but on time and well organized. I would certainly fly TAP again.

Very borderline, low budget airline without low budget prices There are no counts of soda, everything is dispensed enlarged bottles and poured into tiny cups about 70 mL so in order to keep hydrated you have to take 3-4 cups at a time. Also, there was only one food item offered, pasta, they ran out of chicken right away. Snack was very poor. It was called tuna sandwich, which is truly borderline. The flight attend attendance seemed to be overworked and tired.

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.

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

Information on your arrival and departure airports