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$149+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to San Diego are usually found in January or September, 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 June 12, 2025.

Round-trip from

$291
(JetBlue)

One-way from

$149
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$416
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. 4% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This JetBlue deal was found by Cheapflights users on 6/10. 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 8/219:49 amBUF - SAN
1 stop12h 29mJetBlue
Tue 8/268:29 pmSAN - BUF
1 stop9h 35mJetBlue
Deal found 6/10$291
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/147:41 pmBUF - SAN
1 stop7h 00mDelta
Tue 8/1910:40 pmSAN - BUF
1 stop6h 42mDelta
Deal found 6/10$297
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/182:11 pmBUF - SAN
1 stop12h 41mFrontier
Fri 8/226:25 amSAN - BUF
1 stop6h 35mFrontier
Deal found 6/10$301
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/131:04 pmBUF - SAN
2 stops9h 34mAmerican Airlines
Mon 8/1810:45 pmSAN - BUF
1 stop9h 19mAmerican Airlines
Deal found 6/9$302
This Southwest deal was found by Cheapflights users on 6/11. 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 8/131:20 pmBUF - SAN
1 stop11h 25mSouthwest
Wed 8/206:15 pmSAN - BUF
2 stops10h 40mSouthwest
Deal found 6/11$308
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 10/145:55 pmBUF - SAN
1 stop7h 19mUnited Airlines
Sat 10/1811:08 amSAN - BUF
2 stops8h 38mUnited Airlines
Deal found 6/12$323
This Sun Country Air deal was found by Cheapflights users on 6/12. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2411:23 amBUF - SAN
1 stop8h 26mSun Country Air
Thu 7/315:25 pmSAN - BUF
1 stop14h 13mSun Country Air
Deal found 6/12$365
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/611:41 amBUF - SAN
2 stops22h 32mMultiple Airlines
Sun 7/136:15 amSAN - BUF
2 stops25h 35mMultiple Airlines
Deal found 6/10$395
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1511:43 amBUF - SAN
2 stops11h 57mAlaska Airlines
Tue 11/1811:45 amSAN - BUF
2 stops21h 12mAlaska Airlines
Deal found 6/9$457

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 June 12, 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

Thu 8/21

9:49 am-7:18 pm

1 stop12h 29m

San Diego

Tue 8/26

8:29 pm-9:04 am

1 stop9h 35m

$291

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 8/14

7:41 pm-11:41 pm

1 stop7h 00m

San Diego

Tue 8/19

10:40 pm-8:22 am

1 stop6h 42m

$297

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Mon 8/18

2:11 pm-11:52 pm

1 stop12h 41m

San Diego

Fri 8/22

6:25 am-4:00 pm

1 stop6h 35m

$301

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 8/13

1:04 pm-7:38 pm

2 stops9h 34m

San Diego

Mon 8/18

10:45 pm-11:04 am

1 stop9h 19m

$302

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 8/13

1:20 pm-9:45 pm

1 stop11h 25m

San Diego

Wed 8/20

6:15 pm-7:55 am

2 stops10h 40m

$308

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 7/24

11:23 am-4:49 pm

1 stop8h 26m

San Diego

Thu 7/31

5:25 pm-10:38 am

1 stop14h 13m

$365

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 7/6

11:41 am-7:13 am

2 stops22h 32m

San Diego

Sun 7/13

6:15 am-10:50 am

2 stops25h 35m

$395

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 8/14

10:50 am-4:28 pm

1 stop8h 38m

San Diego

Wed 8/20

10:54 am-10:56 pm

2 stops9h 02m

$402

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 6/24

5:31 am-11:20 am

1 stop8h 49m

San Diego

Sat 6/28

7:05 pm-12:06 pm

2 stops14h 01m

$642

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 9/10

7:35 am-12:27 pm

1 stop7h 52m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 18 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 June 9, 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 June 12, 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.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Buffalo to San Diego 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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 $291. Other airlines that can offer you cheap pricing are Delta, from $297, and Frontier, from $301. Users have found that JetBlue is 33% 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 ($149), Southwest ($154), and JetBlue ($156).

  • 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 Buffalo?

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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$273FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$256Average$300FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$298Average$443FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$406FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$340Average$493FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$346Average$460FlexibilityNo cancel feeOn-time63%

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