$399+ Cheap flights from Buffalo (BUF) to San José (SJO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJO
Jul 29 — Aug 51
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to San José with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Buffalo to San José
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Best
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Cheapest flights from Buffalo to San JoséExplore the most affordable flight options available from Buffalo to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.
Explore the most affordable flight options available from Buffalo to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.
This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:56 pm
BUF
- SJO
2 stops19h 04m
American Airlines
Wed 11/117:00 am
SJO
- BUF
2 stops14h 53m
American Airlines
Deal found 6/24![American Airlines logo]()
$399
This Avianca deal was found by Cheapflights users on 6/29. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:30 pm
BUF
- SJO
2 stops15h 05m
Multiple Airlines
Wed 12/95:00 am
SJO
- BUF
2 stops12h 14m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 6/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:20 pm
BUF
- SJO
2 stops18h 01m
American Airlines
Wed 12/93:06 pm
SJO
- BUF
1 stop8h 01m
American Airlines
Deal found 6/29![American Airlines logo]()
$431
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:59 pm
BUF
- SJO
2 stops19h 04m
American Airlines
Fri 8/281:29 pm
SJO
- BUF
1 stop26h 33m
American Airlines
Deal found 6/28![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:49 pm
BUF
- SJO
1 stop21h 37m
American Airlines
Tue 8/251:03 pm
SJO
- BUF
2 stops21h 03m
American Airlines
Deal found 6/24![American Airlines logo]()
$443
This American Airlines deal was found by Cheapflights users on 6/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:20 pm
BUF
- SJO
2 stops19h 19m
American Airlines
Fri 12/181:31 pm
SJO
- BUF
1 stop9h 28m
American Airlines
Deal found 6/27![American Airlines logo]()
$463
Best flights from Buffalo to San JoséDiscover carefully curated flight deals from Buffalo to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 29, 2026.
Discover carefully curated flight deals from Buffalo to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 29, 2026.
This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:56 pm
BUF
- SJO
2 stops19h 04m
American Airlines
Wed 11/111:23 pm
SJO
- BUF
1 stop9h 45m
American Airlines
Deal found 6/24![American Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:45 pm
BUF
- SJO
2 stops18h 40m
United Airlines
Wed 10/287:45 am
SJO
- BUF
2 stops24h 01m
United Airlines
Deal found 6/28![United Airlines logo]()
$529
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:59 pm
BUF
- SJO
2 stops19h 04m
American Airlines
Fri 8/281:29 pm
SJO
- BUF
1 stop26h 33m
American Airlines
Deal found 6/28![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
BUF
- SJO
1 stop8h 52m
American Airlines
Wed 8/262:56 pm
SJO
- BUF
2 stops19h 10m
American Airlines
Deal found 6/25![American Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am
BUF
- SJO
2 stops14h 37m
United Airlines
Mon 9/211:25 pm
SJO
- BUF
2 stops18h 03m
United Airlines
Deal found 6/27![United Airlines logo]()
$529
Last-minute flights from Buffalo to San JoséDiscover last-minute flight deals from Buffalo to San José. Data last updated June 29, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to San José. Data last updated June 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 6/276:15 am
BUF
- SJO
2 stops29h 56m
United Airlines
Wed 7/17:55 am
SJO
- BUF
2 stops24h 05m
United Airlines
Deal found 6/24![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 6/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:00 am
BUF
- SJO
2 stops18h 39m
United Airlines
Thu 7/3012:30 am
SJO
- BUF
2 stops38h 11m
United Airlines
Deal found 6/28![United Airlines logo]()
$616
This Avianca deal was found by Cheapflights users on 6/25. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:50 pm
BUF
- SJO
2 stops18h 40m
Multiple Airlines
Fri 7/314:35 pm
SJO
- BUF
2 stops13h 17m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$672
This KAYAK deal was found by Cheapflights users on 6/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:40 pm
BUF
- SJO
2 stops25h 55m
GOL
Sun 7/1211:41 pm
SJO
- BUF
1 stop21h 09m
GOL
Deal found 6/25![GOL logo]()
$652
This Expedia deal was found by Cheapflights users on 6/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:55 pm
BUF
- SJO
2 stops25h 30m
Multiple Airlines
Tue 7/143:10 pm
SJO
- BUF
2 stops21h 49m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$628
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:15 am
BUF
- SJO
2 stops16h 20m
American Airlines
Thu 7/166:00 am
SJO
- BUF
2 stops15h 59m
American Airlines
Deal found 6/28![American Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:57 am
BUF
- SJO
2 stops37h 42m
United Airlines
Thu 7/1611:13 am
SJO
- BUF
2 stops20h 47m
United Airlines
Deal found 6/27![United Airlines logo]()
$632
This Avianca deal was found by Cheapflights users on 6/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:32 pm
BUF
- SJO
2 stops18h 58m
Multiple Airlines
Sun 8/24:35 pm
SJO
- BUF
2 stops13h 17m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$525
This Faresmojo deal was found by Cheapflights users on 6/28. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:55 pm
BUF
- SJO
1 stop19h 05m
JetBlue
Sun 8/212:00 pm
SJO
- BUF
1 stop9h 55m
JetBlue
Deal found 6/28![JetBlue logo]()
$545
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:01 am
BUF
- SJO
1 stop17h 37m
American Airlines
Sun 8/26:00 am
SJO
- BUF
2 stops15h 53m
American Airlines
Deal found 6/28![American Airlines logo]()
$623
One-way flights from Buffalo to San JoséSearch for one-way flight options from Buffalo to San José. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
Search for one-way flight options from Buffalo to San José. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
This FlightHub deal was found by Cheapflights users on 6/27. 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.
Tue 8/48:37 pm
BUF
- SJO
1 stop18h 20m
JetBlue
Deal found 6/27![JetBlue logo]()
$475
Find flight deals from Buffalo to San José
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to San José (SJO). 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 June 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (American Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $506 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to San José 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 June 29, 2026.
Use the filters below to find and compare flights from Buffalo to San José that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloSan José
BUF - SJO
BUFSJO
Buffalo
Mon 10/26
7:56 pm-1:00 pm
2 stops19h 04m
San José Juan Santamaria Intl
Wed 11/11
1:23 pm-12:08 am
1 stop9h 45m
$399
BuffaloSan José
BUF - SJO
BUFSJO
Buffalo
Tue 8/18
6:59 pm-12:03 pm
2 stops19h 04m
San José Juan Santamaria Intl
Fri 8/28
1:29 pm-6:02 pm
1 stop26h 33m
$439
Quickest round-trip
BuffaloSan José
BUF - SJO
BUFSJO
Buffalo
Tue 8/18
7:00 am-1:52 pm
1 stop8h 52m
San José Juan Santamaria Intl
Wed 8/26
2:56 pm-12:06 pm
2 stops19h 10m
$474
BuffaloSan José
BUF - SJO
BUFSJO
Buffalo
Sat 10/24
5:45 pm-10:25 am
2 stops18h 40m
San José Juan Santamaria Intl
Wed 10/28
7:45 am-9:46 am
2 stops24h 01m
$529
BuffaloSan José
BUF - SJO
BUFSJO
Buffalo
Wed 9/16
7:00 am-7:37 pm
2 stops14h 37m
San José Juan Santamaria Intl
Mon 9/21
1:25 pm-9:28 am
2 stops18h 03m
$529
Cheapest one-way
Quickest one-way
BuffaloSan José
BUF - SJO
BUFSJO
Buffalo
Tue 8/4
8:37 pm-12:57 pm
1 stop18h 20m
$475
Sorted by cheapest first
Compare providers for flights from Buffalo to San José
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 San José in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-San José flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-San José flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-San José flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-San José 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-San José 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 San José
Have a flexible travel schedule? Discover the best time to fly to San José from Buffalo with our price prediction graph.
BUF-SJO
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 San José
What is the cheapest month to book a flight from Buffalo to San José?
Currently, September is the cheapest month in which you can book a flight from Buffalo to San José (average of $344). Flying from Buffalo to San José in December is currently the most expensive (average of $778). 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.
How much does it cost to fly round-trip from Buffalo to San José?
Reviews of airlines servicing San José
Get insights into the airlines that provide service to San José. 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 San José. Reviews last updated June 29, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Buffalo to San José by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Buffalo to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San José?
Book flights to San José if you plan to visit one of these locationsAlajuela
Jacó
Heredia
Dominical
Manuel Antonio
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Complete your trip
Complete your trip to San José by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Buffalo to San José, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Buffalo and San José flights
Browse other Buffalo and San José flight options. Last updated on June 29, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on June 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San José
Explore flights to San José departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 29, 2026.
Top 5 airlines flying from Buffalo to San José
Discover the top 5 airlines that operate flights from Buffalo to San José. 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 June 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$251 | Average$520 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$259 | Average$487 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$305 | Average$508 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$369 | Average$628 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$470 | Average$725 | FlexibilityNo cancel fee | On-time63% |