What is the cheapest airline that flies from Buffalo to San Diego?

Delta, United Airlines, and JetBlue are the most popular carriers operating from Buffalo to San Diego

When did momondo last update prices for flights from Buffalo Airport to San Diego Airport?

Prices for flights from Buffalo Airport to San Diego Airport were last updated today.

How many operators does momondo search for flights from Buffalo Airport to San Diego Airport?

The number of operators available for flights from Buffalo Airport to San Diego Airport is 1 as of December 2025.

How old do you have to be to fly from Buffalo Airport to San Diego Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 177 Cheap Flights from Buffalo to San Diego in 2025/26

1 adult

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Find the cheapest flights from Buffalo to San Diego

Round-trip

One-way

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Cheap round-trip flights

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10:45 a.m. - 5:28 p.m.

BUF

SAN

9h 43m2 stops

9:00 a.m. - 10:31 p.m.

SAN

BUF

10h 31m2 stops

C$ 355United Airlines

Tue, 20 Jan - Sat, 24 Jan

9:55 a.m. - 5:28 p.m.

BUF

SAN

10h 33m2 stops

6:30 a.m. - 7:25 p.m.

SAN

BUF

9h 55m2 stops

C$ 357United Airlines

Sat, 17 Jan - Thu, 22 Jan

10:25 a.m. - 8:20 p.m.

BUF

SAN

12h 55m1 stop

9:00 p.m. - 9:02 a.m.

SAN

BUF

9h 02m1 stop

C$ 374JetBlue

Tue, 3 Feb - Wed, 4 Feb

1:59 p.m. - 11:05 p.m.

BUF

SAN

12h 06m2 stops

9:00 a.m. - 8:29 p.m.

SAN

BUF

8h 29m2 stops

C$ 393United Airlines

Fri, 9 Jan - Tue, 13 Jan

5:44 p.m. - 11:02 p.m.

BUF

SAN

8h 18m1 stop

10:30 p.m. - 11:18 a.m.

SAN

BUF

9h 48m1 stop

C$ 418Delta

Wed, 25 Feb - Tue, 3 Mar

12:50 p.m. - 7:44 p.m.

BUF

SAN

9h 54m1 stop

8:50 p.m. - 9:35 a.m.

SAN

BUF

9h 45m1 stop

C$ 427JetBlue

Tue, 31 Mar - Tue, 14 Apr

7:00 a.m. - 2:18 p.m.

BUF

SAN

10h 18m1 stop

9:00 p.m. - 9:28 a.m.

SAN

BUF

9h 28m1 stop

C$ 428JetBlue

Mon, 2 Feb - Mon, 16 Feb

1:59 p.m. - 10:37 p.m.

BUF

SAN

11h 38m2 stops

9:00 a.m. - 8:29 p.m.

SAN

BUF

8h 29m2 stops

C$ 431United Airlines

Wed, 7 Jan - Fri, 9 Jan

7:00 a.m. - 11:38 a.m.

BUF

SAN

7h 38m1 stop

11:03 a.m. - 11:10 p.m.

SAN

BUF

9h 07m2 stops

C$ 480United Airlines

Wed, 4 Mar - Thu, 12 Mar

9:55 a.m. - 3:40 p.m.

BUF

SAN

8h 45m1 stop

6:30 a.m. - 8:29 p.m.

SAN

BUF

10h 59m2 stops

C$ 484United Airlines

Tue, 3 Feb - Wed, 4 Feb

United Airlines flights from Buffalo to San Diego

Our best United Airlines deals on Buffalo to San Diego flight tickets

United Airlines

20 Jan

BUF10:45 a.m.Buffalo

9h 43m

2 stops

SAN5:28 p.m.San Diego

24 Jan

SAN9:00 a.m.San Diego

10h 31m

2 stops

BUF10:31 p.m.Buffalo

C$ 355

Find similar

United Airlines

17 Jan

BUF9:55 a.m.Buffalo

10h 33m

2 stops

SAN5:28 p.m.San Diego

22 Jan

SAN6:30 a.m.San Diego

9h 55m

2 stops

BUF7:25 p.m.Buffalo

C$ 357

Find similar

United Airlines

9 Jan

BUF1:59 p.m.Buffalo

12h 06m

2 stops

SAN11:05 p.m.San Diego

13 Jan

SAN9:00 a.m.San Diego

8h 29m

2 stops

BUF8:29 p.m.Buffalo

C$ 393

Find similar

Delta flights from Buffalo to San Diego

Our best Delta deals on Buffalo to San Diego flight tickets

Delta

25 Feb

BUF5:44 p.m.Buffalo

8h 18m

1 stop

SAN11:02 p.m.San Diego

3 Mar

SAN10:30 p.m.San Diego

9h 48m

1 stop

BUF11:18 a.m.Buffalo

C$ 418

Find similar

Delta

5 Mar

BUF10:27 a.m.Buffalo

10h 23m

2 stops

SAN5:50 p.m.San Diego

9 Mar

SAN10:10 p.m.San Diego

8h 29m

1 stop

BUF9:39 a.m.Buffalo

C$ 581

Find similar

Delta

2 Feb

BUF5:44 p.m.Buffalo

7h 47m

1 stop

SAN10:31 p.m.San Diego

16 Feb

SAN6:50 a.m.San Diego

13h 07m

2 stops

BUF10:57 p.m.Buffalo

C$ 606

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 20/1

10:45 a.m.-5:28 p.m.

2 stops9h 43m

San Diego

Sat 24/1

9:00 a.m.-10:31 p.m.

2 stops10h 31m

C$ 355

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 17/1

9:55 a.m.-5:28 p.m.

2 stops10h 33m

San Diego

Thu 22/1

6:30 a.m.-7:25 p.m.

2 stops9h 55m

C$ 357

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/2

10:25 a.m.-8:20 p.m.

1 stop12h 55m

San Diego

Wed 4/2

9:00 p.m.-9:02 a.m.

1 stop9h 02m

C$ 374

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Fri 9/1

1:59 p.m.-11:05 p.m.

2 stops12h 06m

San Diego

Tue 13/1

9:00 a.m.-8:29 p.m.

2 stops8h 29m

C$ 393

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 25/2

5:44 p.m.-11:02 p.m.

1 stop8h 18m

San Diego

Tue 3/3

10:30 p.m.-11:18 a.m.

1 stop9h 48m

C$ 418

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 31/3

12:50 p.m.-7:44 p.m.

1 stop9h 54m

San Diego

Tue 14/4

8:50 p.m.-9:35 a.m.

1 stop9h 45m

C$ 427

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Mon 2/2

7:00 a.m.-2:18 p.m.

1 stop10h 18m

San Diego

Mon 16/2

9:00 p.m.-9:28 a.m.

1 stop9h 28m

C$ 428

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 7/1

1:59 p.m.-10:37 p.m.

2 stops11h 38m

San Diego

Fri 9/1

9:00 a.m.-8:29 p.m.

2 stops8h 29m

C$ 431

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 4/3

7:00 a.m.-11:38 a.m.

1 stop7h 38m

San Diego

Thu 12/3

11:03 a.m.-11:10 p.m.

2 stops9h 07m

C$ 480

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/2

9:55 a.m.-3:40 p.m.

1 stop8h 45m

San Diego

Wed 4/2

6:30 a.m.-8:29 p.m.

2 stops10h 59m

C$ 484

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to San Diego?

In general, October is the cheapest month to fly from Buffalo to San Diego. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 488. If you are unable to visit San Diego during the month of October, then departing from Buffalo during the month September is also very affordable. Most momondo users find prices during this month for around C$ 514.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart on your flight to San Diego is on a Wednesday when prices can be found for as low as C$ 439. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Friday is C$ 839.

What is the cheapest time of day to depart on your flight to San Diego?

Flying to San Diego from Buffalo in the evening is the least expensive time of day to depart. momondo users have found prices as low as C$ 352 when looking at flights departing in the evening. Flights to San Diego are more costly in the morning, with an average ticket price of C$ 719. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around C$ 603 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Buffalo for as low as C$ 481 on momondo.

How have Buffalo to San Diego flight prices changed over time?

As of December 2025, prices for Buffalo to San Diego flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buffalo to San Diego (BUF to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to San Diego

Fastest flight time	8h 39m
Direct flights	None

The fastest flight from Buffalo to San Diego takes 8h 39m

There are no direct flights from Buffalo to San Diego. There are no popular flight routes from Buffalo to San Diego.

Search flight deals

How far is Buffalo to San Diego by plane?
The straight-line distance from Buffalo to San Diego is 3511.1 km. 7h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Buffalo Airport to San Diego Airport?
Prices for flights from Buffalo Airport to San Diego Airport were last updated today.
How many operators does momondo search for flights from Buffalo Airport to San Diego Airport?
The number of operators available for flights from Buffalo Airport to San Diego Airport is 1 as of December 2025.
How old do you have to be to fly from Buffalo Airport to San Diego Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Buffalo to San Diego?
Based on momondo bookings for flights between Buffalo and San Diego, the leading plane model is Boeing 737 MAX 8, making up 100.00% of the total bookings.
What is the most popular airline from Buffalo to San Diego?
Based on momondo bookings for flights between Buffalo and San Diego, the leading airline is Southwest, making up 100% of the total bookings.

Best airlines flying from Buffalo to San Diego

Compare and see reviews for airlines that fly from Buffalo to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom C$ 526	Free Cancellation	Rating 8.0 4,251 reviews		Search Southwest flights

El Cajon

Borrego Springs

Coronado

Chula Vista

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to San Diego?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Buffalo.

Can I find flights from Buffalo to San Diego with flexible booking policies on momondo?

Yes. All flights to San Diego from Buffalo on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Buffalo to San Diego?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from Buffalo.

I’m not ready to book a flight from Buffalo to San Diego right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Buffalo to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.