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

Delta, American Airlines, and Southwest 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 October 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$ 209 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

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:35 p.m. - 9:40 p.m.BUF-SAN

9h 05m1 stop

9:45 p.m. - 8:05 a.m.SAN-BUF

7h 20m1 stop

C$ 443Southwest

Find Deal

Sat, 17 Jan - Fri, 23 Jan

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$ 450United Airlines

Find Deal

Sun, 18 Jan - Thu, 22 Jan

6:00 a.m. - 6:21 p.m.BUF-SAN

15h 21m2 stops

12:40 p.m. - 10:33 p.m.SAN-BUF

6h 53m1 stop

C$ 456Delta

Find Deal

Wed, 17 Dec - Wed, 24 Dec

8:30 a.m. - 3:04 p.m.BUF-SAN

9h 34m2 stops

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

8h 29m2 stops

C$ 457United Airlines

Find Deal

Sun, 18 Jan - Thu, 22 Jan

12:18 p.m. - 7:11 p.m.BUF-SAN

9h 53m1 stop

9:05 p.m. - 9:20 a.m.SAN-BUF

9h 15m1 stop

C$ 481JetBlue

Find Deal

Fri, 5 Dec - Sun, 7 Dec

11:21 a.m. - 9:05 p.m.BUF-SAN

12h 44m1 stop

10:15 p.m. - 3:15 p.m.SAN-BUF

14h 00m1 stop

C$ 482Delta

Find Deal

Wed, 3 Dec - Mon, 8 Dec

7:00 a.m. - 12:47 p.m.BUF-SAN

8h 47m1 stop

9:05 p.m. - 9:20 a.m.SAN-BUF

9h 15m1 stop

C$ 484JetBlue

Find Deal

Thu, 13 Nov - Sun, 16 Nov

6:00 a.m. - 11:43 a.m.BUF-SAN

8h 43m1 stop

12:43 p.m. - 10:41 p.m.SAN-BUF

6h 58m1 stop

C$ 583American Airlines

Find Deal

Thu, 27 Nov - Tue, 2 Dec

10:07 a.m. - 6:25 p.m.BUF-SAN

11h 18m2 stops

1:22 p.m. - 11:39 p.m.SAN-BUF

7h 17m1 stop

C$ 643American Airlines

Find Deal

Tue, 2 Dec - Fri, 5 Dec

12:50 p.m. - 11:59 p.m.BUF-SAN

14h 09m2 stops

11:37 a.m. - 11:08 a.m.SAN-BUF

20h 31m2 stops

C$ 669Alaska Airlines

Find Deal

Sat, 15 Nov - Tue, 18 Nov

Southwest flights from Buffalo to San Diego

Our best Southwest deals on Buffalo to San Diego flight tickets

Southwest

17 Jan

BUF3:35 p.m.Buffalo

9h 05m

1 stop

SAN9:40 p.m.San Diego

23 Jan

SAN9:45 p.m.San Diego

7h 20m

1 stop

BUF8:05 a.m.Buffalo

C$ 443

Find similar

Southwest

12 Dec

BUF4:55 p.m.Buffalo

8h 15m

1 stop

SAN10:10 p.m.San Diego

22 Dec

SAN4:20 p.m.San Diego

12h 35m

1 stop

BUF7:55 a.m.Buffalo

C$ 516

Find similar

Southwest

12 Dec

BUF10:40 a.m.Buffalo

9h 45m

2 stops

SAN5:25 p.m.San Diego

22 Dec

SAN4:20 p.m.San Diego

12h 35m

1 stop

BUF7:55 a.m.Buffalo

C$ 524

Find similar

United Airlines flights from Buffalo to San Diego

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

United Airlines

18 Jan

BUF9:55 a.m.Buffalo

8h 45m

1 stop

SAN3:40 p.m.San Diego

22 Jan

SAN6:30 a.m.San Diego

10h 59m

2 stops

BUF8:29 p.m.Buffalo

C$ 450

Find similar

United Airlines

18 Jan

BUF8:30 a.m.Buffalo

9h 34m

2 stops

SAN3:04 p.m.San Diego

22 Jan

SAN9:00 a.m.San Diego

8h 29m

2 stops

BUF8:29 p.m.Buffalo

C$ 457

Find similar

United Airlines

19 Nov

BUF1:52 p.m.Buffalo

9h 00m

2 stops

SAN7:52 p.m.San Diego

24 Nov

SAN11:20 a.m.San Diego

8h 32m

1 stop

BUF10:52 p.m.Buffalo

C$ 491

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 17/1

3:35 p.m.-9:40 p.m.

1 stop9h 05m

San Diego

Fri 23/1

9:45 p.m.-8:05 a.m.

1 stop7h 20m

C$ 443

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 18/1

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

1 stop8h 45m

San Diego

Thu 22/1

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

2 stops10h 59m

C$ 450

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 17/12

6:00 a.m.-6:21 p.m.

2 stops15h 21m

San Diego

Wed 24/12

12:40 p.m.-10:33 p.m.

1 stop6h 53m

C$ 456

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 18/1

8:30 a.m.-3:04 p.m.

2 stops9h 34m

San Diego

Thu 22/1

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

2 stops8h 29m

C$ 457

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Fri 5/12

12:18 p.m.-7:11 p.m.

1 stop9h 53m

San Diego

Sun 7/12

9:05 p.m.-9:20 a.m.

1 stop9h 15m

C$ 481

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 3/12

11:21 a.m.-9:05 p.m.

1 stop12h 44m

San Diego

Mon 8/12

10:15 p.m.-3:15 p.m.

1 stop14h 00m

C$ 482

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 13/11

7:00 a.m.-12:47 p.m.

1 stop8h 47m

San Diego

Sun 16/11

9:05 p.m.-9:20 a.m.

1 stop9h 15m

C$ 484

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 27/11

6:00 a.m.-11:43 a.m.

1 stop8h 43m

San Diego

Tue 2/12

12:43 p.m.-10:41 p.m.

1 stop6h 58m

C$ 583

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 2/12

10:07 a.m.-6:25 p.m.

2 stops11h 18m

San Diego

Fri 5/12

1:22 p.m.-11:39 p.m.

1 stop7h 17m

C$ 643

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 15/11

12:50 p.m.-11:59 p.m.

2 stops14h 09m

San Diego

Tue 18/11

11:37 a.m.-11:08 a.m.

2 stops20h 31m

C$ 669

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$ 492. 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$ 523.

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$ 443. 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$ 846.

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$ 355 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$ 725. 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$ 513 on momondo.

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

As of October 2025, prices for Buffalo to San Diego flights are approximately 15% 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

Direct flights	None

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 05m 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 October 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$ 530	Free Cancellation	Rating 8.0 4,241 reviews		Search Southwest flights

El Cajon

Coronado

Borrego Springs

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.