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$126+ Cheap flights from Buffalo to San Diego (BUF - SAN)

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 — SAN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to San Diego are usually found in November or January, booked 69 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from Buffalo to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to San Diego (SAN). 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 July 29, 2025.

Round-trip from

$244
(American Airlines)

One-way from

$126
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$461
From Buffalo to San Diego
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One-way flight from Buffalo to San Diego
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Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Buffalo to San Diego

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

This American Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/271:12 pmBUF - SAN
1 stop8h 20mAmerican Airlines
Sun 8/3110:45 pmSAN - BUF
1 stop9h 19mAmerican Airlines
Deal found 7/27$244
This FlightHub deal was found by Cheapflights users on 7/28. 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.
Fri 9/124:57 pmBUF - SAN
1 stop9h 56mFrontier
Sat 9/207:15 amSAN - BUF
1 stop29h 47mFrontier
Deal found 7/28$275
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/45:54 pmBUF - SAN
1 stop7h 08mUnited Airlines
Sat 9/69:02 amSAN - BUF
2 stops9h 14mUnited Airlines
Deal found 7/29$279
This JetBlue deal was found by Cheapflights users on 7/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:00 amBUF - SAN
1 stop11h 58mJetBlue
Thu 9/188:55 pmSAN - BUF
1 stop8h 58mJetBlue
Deal found 7/28$291
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:00 amBUF - SAN
1 stop9h 28mDelta
Wed 9/1012:09 pmSAN - BUF
1 stop8h 48mDelta
Deal found 7/29$297
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/193:40 pmBUF - SAN
2 stops9h 45mSouthwest
Wed 12/36:50 amSAN - BUF
1 stop7h 45mSouthwest
Deal found 7/27$302

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to San Diego 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 July 29, 2025.
Use the filters below to find and compare flights from Buffalo to San Diego that are best for you.

Fly from

Buffalo

Fly to

San Diego

Route

Depart

Return

Price

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 8/27

1:12 pm-6:32 pm

1 stop8h 20m

San Diego

Sun 8/31

10:45 pm-11:04 am

1 stop9h 19m

$244

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 8/26

5:54 pm-10:02 pm

1 stop7h 08m

San Diego

Tue 9/2

8:37 pm-9:53 am

2 stops10h 16m

$256

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Fri 9/12

4:57 pm-11:53 pm

1 stop9h 56m

San Diego

Sat 9/20

7:15 am-4:02 pm

1 stop29h 47m

$275

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 9/11

10:00 am-6:58 pm

1 stop11h 58m

San Diego

Thu 9/18

8:55 pm-8:53 am

1 stop8h 58m

$291

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 8/30

6:00 am-12:28 pm

1 stop9h 28m

San Diego

Wed 9/10

12:09 pm-11:57 pm

1 stop8h 48m

$297

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 9/16

5:50 am-2:00 pm

2 stops11h 10m

San Diego

Tue 11/4

10:20 am-10:00 pm

2 stops8h 40m

$314

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 10/4

1:00 pm-5:44 pm

1 stop7h 44m

$126

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 8/24

2:22 pm-7:41 pm

1 stop8h 19m

$139

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 8/21

7:05 am-1:40 pm

2 stops9h 35m

$154

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 9/10

7:40 am-2:00 pm

2 stops9h 20m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 results
1
2

Best time to book a flight from Buffalo to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego 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 San Diego

How far ahead should I book a flight from Buffalo to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to San Diego. Price data was last updated on July 25, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Buffalo to San Diego (average of $286). Flying from Buffalo to San Diego in March is currently the most expensive (average of $366). 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 SAN?

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

When flying from Buffalo to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight in the afternoon.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Buffalo to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

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

    Cheapflights users have booked flights from Buffalo to San Diego round-trip from $244. Other airlines that can offer you cheap pricing are United Airlines, from $256, and Frontier, from $275. Users have found that American Airlines is 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Buffalo to San Diego one-way?

    The cheapest airlines for a one-way flight from Buffalo to San Diego are American Airlines ($126), Frontier ($139), and United Airlines ($154).

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

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

  • How can I find direct flights from Buffalo to San Diego?

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

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

    Yes. Cheapflights offers flight deals from Buffalo to San Diego 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 San Diego?

    Currently, August is the cheapest month in which you can book a flight from Buffalo to San Diego (average of $286). Flying from Buffalo to San Diego in March is currently the most expensive (average of $366). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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Top 6 airlines flying from Buffalo to San Diego

Discover the top 6 airlines that operate flights from Buffalo to San Diego. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$285FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$259Average$304FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$285Average$443FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$406FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$326Average$450FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$342Average$501FlexibilityNo cancel feeOn-time69%

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