Cheap flights from Buffalo to San Diego from C$ 249
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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAN
5 Dec — 12 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Buffalo to San Diego are usually found in October or September, booked 54 days in advance, depart on a Wednesday or Saturday and return on a Monday
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 5 November 2025.
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 5 November 2025.
Fri 5/127:59 p.m.BUF - SAN
1 stop19h 03mDelta
Mon 15/1210:15 p.m.SAN - BUF
1 stop14h 00mDelta
Deal found 4/11C$ 483
Mon 24/119:14 a.m.BUF - SAN
1 stop8h 01mDelta
Wed 3/127:10 a.m.SAN - BUF
1 stop14h 06mDelta
Deal found 4/11C$ 490
Mon 24/116:00 a.m.BUF - SAN
2 stops8h 30mSouthwest
Wed 3/126:30 a.m.SAN - BUF
1 stop6h 20mSouthwest
Deal found 4/11C$ 504
Tue 2/1212:10 p.m.BUF - SAN
1 stop9h 45mSouthwest
Tue 9/1210:20 a.m.SAN - BUF
2 stops8h 40mSouthwest
Deal found 5/11C$ 543
Wed 10/127:40 a.m.BUF - SAN
2 stops10h 40mSouthwest
Fri 12/127:45 a.m.SAN - BUF
2 stops9h 05mSouthwest
Deal found 5/11C$ 563
Mon 22/121:59 p.m.BUF - SAN
2 stops11h 33mUnited Airlines
Mon 29/127:00 a.m.SAN - BUF
1 stop6h 54mUnited Airlines
Deal found 5/11C$ 597
Tue 2/1212:10 p.m.BUF - SAN
1 stop9h 45mSouthwest
Tue 16/128:40 a.m.SAN - BUF
2 stops9h 00mSouthwest
Deal found 5/11C$ 598
Fri 5/123:40 p.m.BUF - SAN
2 stops9h 45mSouthwest
Mon 15/128:40 a.m.SAN - BUF
2 stops9h 00mSouthwest
Deal found 4/11C$ 604
Thu 25/1210:29 a.m.BUF - SAN
1 stop8h 26mUnited Airlines
Tue 30/129:30 p.m.SAN - BUF
1 stop9h 16mUnited Airlines
Deal found 5/11C$ 611
Fri 5/126:12 a.m.BUF - SAN
1 stop7h 14mDelta
Sun 7/1210:30 p.m.SAN - BUF
1 stop9h 34mDelta
Deal found 4/11C$ 615
Best flights from Buffalo to San Diego
Discover carefully curated flight deals from Buffalo to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 5 November 2025.
Thu 26/25:20 p.m.BUF - SAN
1 stop9h 05mSouthwest
Mon 2/36:50 a.m.SAN - BUF
1 stop8h 50mSouthwest
Deal found 4/11C$ 483
Fri 5/127:59 p.m.BUF - SAN
1 stop19h 03mDelta
Mon 15/1210:15 p.m.SAN - BUF
1 stop14h 00mDelta
Deal found 4/11C$ 483
Tue 13/11:59 p.m.BUF - SAN
2 stops9h 43mUnited Airlines
Sat 17/19:00 a.m.SAN - BUF
2 stops8h 29mUnited Airlines
Deal found 4/11C$ 521
Tue 13/112:10 p.m.BUF - SAN
1 stop9h 25mSouthwest
Sat 17/110:40 a.m.SAN - BUF
1 stop8h 25mSouthwest
Deal found 4/11C$ 483
Mon 24/119:14 a.m.BUF - SAN
1 stop8h 01mDelta
Wed 3/127:10 a.m.SAN - BUF
1 stop14h 06mDelta
Deal found 4/11C$ 490
Tue 3/36:03 a.m.BUF - SAN
1 stop7h 30mDelta
Wed 4/310:05 p.m.SAN - BUF
1 stop8h 43mDelta
Deal found 3/11C$ 497
Mon 24/116:00 a.m.BUF - SAN
2 stops8h 30mSouthwest
Wed 3/126:30 a.m.SAN - BUF
1 stop6h 20mSouthwest
Deal found 4/11C$ 504
Mon 19/15:44 p.m.BUF - SAN
1 stop7h 49mDelta
Thu 22/110:00 p.m.SAN - BUF
1 stop8h 53mDelta
Deal found 4/11C$ 497
Last-minute flights from Buffalo to San Diego
Discover last-minute flight deals from Buffalo to San Diego. Data last updated 5 November 2025 and is based on user searches.
Mon 24/119:14 a.m.BUF - SAN
1 stop8h 01mDelta
Wed 3/127:10 a.m.SAN - BUF
1 stop14h 06mDelta
Deal found 4/11C$ 490
Mon 24/116:00 a.m.BUF - SAN
2 stops8h 30mSouthwest
Wed 3/126:30 a.m.SAN - BUF
1 stop6h 20mSouthwest
Deal found 4/11C$ 504
Tue 2/1212:10 p.m.BUF - SAN
1 stop9h 45mSouthwest
Tue 9/1210:20 a.m.SAN - BUF
2 stops8h 40mSouthwest
Deal found 5/11C$ 543
Tue 2/1212:10 p.m.BUF - SAN
1 stop9h 45mSouthwest
Tue 16/128:40 a.m.SAN - BUF
2 stops9h 00mSouthwest
Deal found 5/11C$ 598
Fri 5/127:59 p.m.BUF - SAN
1 stop19h 03mDelta
Mon 15/1210:15 p.m.SAN - BUF
1 stop14h 00mDelta
Deal found 4/11C$ 483
Fri 5/123:40 p.m.BUF - SAN
2 stops9h 45mSouthwest
Mon 15/128:40 a.m.SAN - BUF
2 stops9h 00mSouthwest
Deal found 4/11C$ 604
Fri 5/126:12 a.m.BUF - SAN
1 stop7h 14mDelta
Sun 7/1210:30 p.m.SAN - BUF
1 stop9h 34mDelta
Deal found 4/11C$ 615
Wed 10/127:40 a.m.BUF - SAN
2 stops10h 40mSouthwest
Fri 12/127:45 a.m.SAN - BUF
2 stops9h 05mSouthwest
Deal found 5/11C$ 563
Mon 22/121:59 p.m.BUF - SAN
2 stops11h 33mUnited Airlines
Mon 29/127:00 a.m.SAN - BUF
1 stop6h 54mUnited Airlines
Deal found 5/11C$ 597
Thu 25/1210:29 a.m.BUF - SAN
1 stop8h 26mUnited Airlines
Tue 30/129:30 p.m.SAN - BUF
1 stop9h 16mUnited Airlines
Deal found 5/11C$ 611
One-way flights from Buffalo to San Diego
Search for one-way flight options from Buffalo to San Diego. Find affordable one-way fares based on user searches. Data last updated 5 November 2025.
Thu 15/112:07 p.m.BUF - SAN
1 stop9h 53mDelta
Deal found 3/11C$ 249
Wed 18/27:00 a.m.BUF - SAN
2 stops11h 00mUnited Airlines
Deal found 3/11C$ 256
Sat 27/1210:29 a.m.BUF - SAN
1 stop8h 26mUnited Airlines
Deal found 3/11C$ 535
Tue 18/117:30 p.m.BUF - SAN
2 stops20h 15mUnited Airlines
Deal found 5/11C$ 614
Mon 29/125:24 a.m.BUF - SAN
1 stop9h 27mAlaska Airlines
Deal found 4/11C$ 648
Mon 29/126:30 a.m.BUF - SAN
2 stops17h 17mUnited Airlines
Deal found 4/11C$ 701
Mon 10/116:00 a.m.BUF - SAN
3 stops17h 05mUnited Airlines
Deal found 5/11C$ 766
Tue 2/126:00 a.m.BUF - SAN
3 stops17h 48mUnited Airlines
Deal found 3/11C$ 1,045
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 629,999 searches. Data last updated 5 November 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 26/2
5:20 p.m.-11:25 p.m.
1 stop9h 05m
San Diego
Mon 2/3
6:50 a.m.-6:40 p.m.
1 stop8h 50m
C$ 483
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Fri 5/12
7:59 p.m.-12:02 p.m.
1 stop19h 03m
San Diego
Mon 15/12
10:15 p.m.-3:15 p.m.
1 stop14h 00m
C$ 483
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Tue 13/1
12:10 p.m.-6:35 p.m.
1 stop9h 25m
San Diego
Sat 17/1
10:40 a.m.-10:05 p.m.
1 stop8h 25m
C$ 483
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Mon 24/11
9:14 a.m.-2:15 p.m.
1 stop8h 01m
San Diego
Wed 3/12
7:10 a.m.-12:16 a.m.
1 stop14h 06m
C$ 490
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Tue 3/3
6:03 a.m.-10:33 a.m.
1 stop7h 30m
San Diego
Wed 4/3
10:05 p.m.-9:48 a.m.
1 stop8h 43m
C$ 497
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Mon 19/1
5:44 p.m.-10:33 p.m.
1 stop7h 49m
San Diego
Thu 22/1
10:00 p.m.-9:53 a.m.
1 stop8h 53m
C$ 497
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Mon 24/11
6:00 a.m.-11:30 a.m.
2 stops8h 30m
San Diego
Wed 3/12
6:30 a.m.-3:50 p.m.
1 stop6h 20m
C$ 504
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Tue 13/1
1:59 p.m.-8:42 p.m.
2 stops9h 43m
San Diego
Sat 17/1
9:00 a.m.-8:29 p.m.
2 stops8h 29m
C$ 521
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Thu 15/1
12:07 p.m.-7:00 p.m.
1 stop9h 53m
C$ 249
BuffaloSan Diego
BUF - SAN
BUFSAN
Buffalo
Wed 18/2
7:00 a.m.-3:00 p.m.
2 stops11h 00m
C$ 256
Flights are sorted by cheapest round-trip flights first.
Deals found on 3/11
Showing 1-10 of 15 results
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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
Prices
More
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 31 October 2025.
Booking 53 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, June is the cheapest month in which you can book a flight from Buffalo to San Diego (average of C$ 139). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 403). 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 5 November 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 51% versus a flight in the morning.
What’s the top layover airport for flights from Buffalo to San Diego?
Share of one-stop round-trip flights from Buffalo to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (MDW) – chosen by Cheapflights users on 29% of one-stop itineraries from Buffalo to San Diego on Cheapflights.
What’s the fastest layover option from Buffalo to San Diego?
Shortest average travel time for 1-stop one-way flights from Buffalo to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 6h 45m.
What’s the fastest layover option from Buffalo to San Diego?
Shortest average travel time for 1-stop one-way flights from Buffalo to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 6h 45m.
Which airport typically offers the quickest layover for flights from Buffalo to San Diego?
Average layover duration for 1-stop one-way flights from Buffalo to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 1h 08m.
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 5 November 2025.
See what other customers who have flown with Southwest from Buffalo to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
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.
How long is the flight from Buffalo to San Diego?
There are many flights that can get you from Buffalo to San Diego in 13h 35m. Fly via Delta or Southwest to get the fastest option. The distance from Buffalo to San Diego is about 3526 km. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Buffalo to San Diego round-trip?
Currently priced at C$ 533, Southwest will fly you from Buffalo to San Diego and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Southwest is priced at 12% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Buffalo to San Diego one-way?
One-way options have recently been found by users for as low as C$ 249 on Delta. Other airlines that offer cheap prices include United Airlines from C$ 256 and Alaska Airlines from C$ 648 one-way.
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, June is the cheapest month in which you can book a flight from Buffalo to San Diego (average of C$ 139). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 403). 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.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 November 2025.
Discover the top airline 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 629,999 searches. Data last updated 5 November 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Buffalo to San Diego?
When you search for this flight from Buffalo to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Buffalo to San Diego?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Buffalo to San Diego.
Can Cheapflights find flights from Buffalo to San Diego with no change fees?
Yes, we can. To see specific flights from Buffalo to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Buffalo to San Diego become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Buffalo today and book when prices fit your budget.
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