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$290+ Cheap flights from Buffalo (BUF) to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LIS
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheap flight deals from Buffalo to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$508
(United Airlines)

One-way from

$290
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,059
Provider with most accurate pricing for Buffalo-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Lisbon Humberto Delgado flights.
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From Buffalo to Lisbon Humberto Delgado
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One-way flight from Buffalo to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 2% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Buffalo to Lisbon

Cheapest flights from Buffalo to Lisbon
Explore the most affordable flight options available from Buffalo to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:09 pmBUF - LIS
2 stops39h 46mScandinavian Airlines
Wed 12/107:05 amLIS - BUF
2 stops22h 02mScandinavian Airlines
Deal found 9/26$540
This United Airlines deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amBUF - LIS
2 stops22h 20mUnited Airlines
Thu 11/205:00 amLIS - BUF
2 stops18h 46mUnited Airlines
Deal found 9/29$553
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:49 pmBUF - LIS
1 stop15h 06mTAP AIR PORTUGAL
Thu 11/205:15 pmLIS - BUF
1 stop21h 18mTAP AIR PORTUGAL
Deal found 9/28$719
This Priceline deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:08 amBUF - LIS
1 stop18h 47mTAP AIR PORTUGAL
Thu 11/2011:30 amLIS - BUF
1 stop15h 40mTAP AIR PORTUGAL
Deal found 9/29$735
This FlightHub deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:30 pmBUF - LIS
1 stop16h 45mTAP AIR PORTUGAL
Wed 11/1211:40 amLIS - BUF
1 stop12h 32mTAP AIR PORTUGAL
Deal found 9/27$769
This oojo deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:28 pmBUF - LIS
2 stops47h 57mTurkish Airlines
Thu 11/2011:30 amLIS - BUF
2 stops39h 45mTurkish Airlines
Deal found 9/27$771
This Justfly.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:49 pmBUF - LIS
1 stop9h 16mBritish Airways
Fri 11/711:05 amLIS - BUF
1 stop16h 44mBritish Airways
Deal found 9/29$784
This FlightHub deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:10 pmBUF - LIS
1 stop33h 00mLufthansa
Thu 11/205:00 amLIS - BUF
2 stops22h 58mLufthansa
Deal found 9/28$804
This FlightHub deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:00 amBUF - LIS
1 stop19h 10mTAP AIR PORTUGAL
Wed 11/511:40 amLIS - BUF
1 stop12h 32mTAP AIR PORTUGAL
Deal found 9/26$807
This Ovago deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:14 pmBUF - LIS
1 stop10h 51mBritish Airways
Fri 3/273:50 pmLIS - BUF
2 stops34h 37mBritish Airways
Deal found 9/27$818

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Lisbon 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, Cheapflights users made 2,558,603 searches. Data last updated September 29, 2025.
Use the filters below to find and compare flights from Buffalo to Lisbon that are best for you.

Fly from

Buffalo

Fly to

Lisbon

Route

Depart

Return

Price

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

8:30 am-8:10 am

2 stops18h 40m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-5:40 pm

2 stops17h 40m

$508

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Wed 3/18

10:20 am-11:35 am

2 stops21h 15m

Lisbon Humberto Delgado

Wed 4/1

5:05 am-5:00 pm

2 stops16h 55m

$524

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 2/3

11:15 am-4:05 pm

2 stops23h 50m

Lisbon Humberto Delgado

Wed 2/11

7:05 am-11:49 pm

2 stops21h 44m

$527

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 3/12

11:15 am-4:05 pm

2 stops24h 50m

Lisbon Humberto Delgado

Sun 3/22

4:55 pm-11:49 pm

2 stops34h 54m

$530

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 10/4

7:11 pm-9:10 am

2 stops56h 59m

$290

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Tue 10/7

10:00 am-10:10 am

1 stop19h 10m

$367

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Sat 10/4

9:33 am-5:40 am

1 stop15h 07m

$386

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 10/6

6:59 pm-6:40 pm

2 stops42h 41m

$399

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Thu 10/9

12:15 pm-7:50 pm

3 stops50h 35m

$514

BuffaloLisbon

BUF - LIS

BUFLIS

Buffalo

Mon 10/6

3:55 pm-10:05 am

1 stop13h 10m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 13 results
1
2

Compare providers for flights from Buffalo to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Lisbon in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Lisbon

What is the cheapest month to book a flight from Buffalo to Lisbon?

Currently, January is the cheapest month in which you can book a flight from Buffalo to Lisbon (average of $612). Flying from Buffalo to Lisbon in June is currently the most expensive (average of $1,126). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUF to LIS?

Find hourly flight availability from Buffalo to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Buffalo to Lisbon at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from Buffalo to Lisbon?

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated September 29, 2025.
Peruse reviews from past customers who have flown with United Airlines and TAP AIR PORTUGAL from Buffalo to Lisbon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
TAP AIR PORTUGAL
7.1
Good
1,997 reviews
United Airlines
7.4
Good
8,924 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buffalo to Lisbon?

    Departing from Buffalo to Lisbon will take you 18h 40m. The distance from Buffalo to Lisbon is about 3540 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Buffalo to Lisbon round-trip?

    Cheapflights users have booked flights from Buffalo to Lisbon round-trip from $628. Another airline that can offer you cheap pricing is TAP AIR PORTUGAL. These flights start at 38% lower than the current average price 3 months from now.

  • Can I find deals for flights from Buffalo to Lisbon that include hotel bookings?

    Yes. In addition to deals on Buffalo to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Lisbon.

  • Can I find deals for business class flights from Buffalo to Lisbon?

    Yes. Cheapflights offers flight deals from Buffalo to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Lisbon (average of $612). Flying from Buffalo to Lisbon in June is currently the most expensive (average of $1,126). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Oeiras
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Sesimbra
Colares

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Buffalo to Lisbon

Discover the top 2 airlines that operate flights from Buffalo to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$628Average$893FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$699Average$1,099FlexibilityNo cancel feeOn-timeN/A

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