Can I fly direct from San Antonio to San Diego?

Direct flights from San Antonio to San Diego are available, though they represent a smaller portion of the total routes. Historically, approximately 20% of flights on this route have been direct. For connecting flights, the median number of stopovers across the trailing 90 days was 2. Travelers should consider this when planning their journey.

How long does it take to fly from San Antonio to San Diego?

A direct flight from San Antonio to San Diego typically takes about 3 hours and 0 minutes. For flights with one stop, the median duration is considerably longer, averaging 7 hours and 32 minutes. The total air distance between these two cities is approximately 1814 kilometers. Travelers should account for these differences in travel time when planning their trip.

How often do cheap flights from San Antonio to San Diego come up?

Based on historical data from the trailing 30 days, cheap flights from San Antonio to San Diego are classified as a regular occurrence. This suggests that travelers have consistent opportunities to find good deals on this route. While specific frequencies can vary, the route generally offers a steady stream of favorable pricing.

Flights From San Antonio

To San Diego

Cheap Flights from San Antonio to San Diego

Browse current best options from San Antonio. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

San Antonio

RatePunk searches hundreds of travel sites at once for deals on flights to San Diego

Prices updated 7 days ago

483 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Oct 26, 2026.)

Today’s best flight deals from San Antonio to San Diego

Explore current cheapest deals departing from San Antonio to San Diego

2026-11-18 – 2026-12-10
SAT - San Diego
74% AI deal score
$248
$183
Round trip
2026-11-17 – 2026-12-10
SAT - San Diego
74% AI deal score
$247
$185
Round trip
2026-11-18 – 2026-12-15
SAT - San Diego
74% AI deal score
$248
$185
Round trip
2026-11-18 – 2026-12-02
SAT - San Diego
74% AI deal score
$259
$187
Round trip
2026-11-17 – 2026-12-15
SAT - San Diego
74% AI deal score
$247
$187
Round trip
2026-11-18 – 2026-12-05
SAT - San Diego
74% AI deal score
$250
$187
Round trip
2026-11-18 – 2026-12-09
SAT - San Diego
74% AI deal score
$248
$187
Round trip
2026-11-18 – 2026-12-08
SAT - San Diego
74% AI deal score
$248
$187
Round trip
2026-11-18 – 2026-12-11
SAT - San Diego
73% AI deal score
$248
$188
Round trip
2026-11-18 – 2026-12-12
SAT - San Diego
73% AI deal score
$248
$188
Round trip

San Antonio to San Diego: Overview

Insights for flights from San Antonio to San Diego

Flights from San Antonio to San Diego cover a distance of 1,814 kilometers, classifying this as a medium-haul route. This means you can expect a journey that is longer than a short hop but typically shorter than an intercontinental flight. New deals for this route show up several times a week, so keeping an eye on prices can be beneficial.

For those looking for cheap flights from San Antonio to San Diego, prices typically range from $438 to $1,006, with a median fare of $660. Right now, current fares are below the typical level, and about 1% of recent fares were classified as a good price.

If you are wondering when is the cheapest time to fly from San Antonio to San Diego, the data indicates that December and January are the most affordable months, both with a median fare of $387. August also offers competitive pricing, with a median fare of $568.

Most itineraries for this route connect at least once, with only 0.2% of recent fares being non-stop. For connecting flights, the typical number of stopovers is 2. This means that while direct flights from San Antonio to San Diego are rare, you will find numerous options with connections.

A typical journey from San Antonio to San Diego takes about 3h 0m, including connections. However, for connecting itineraries, the median journey time extends to approximately 13h 13m, reflecting the time spent on layovers.

How much is a round trip from San Antonio to San Diego

Regular price: $270 - $388

Prices for flights from San Antonio to San Diego are currently below the regular range.

The regular price range for flights from San Antonio to San Diego is typically between $270 and $388. The current lowest deal is $168 with Frontier Airlines for travel from Dec 2-Dec 7.

now $168

Low $270

High $388

The cheapest time to fly from San Antonio to San Diego

The cheapest month to fly from San Antonio to San Diego is January, with a median price of $387. The most expensive month is July, with a median price of $1073. Prices are generally lower from January to December.

January

Cheapest

Flights from $387

July

Most Expensive

Flights from $1,073

Jan

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from San Antonio to San Diego

Frontier Airlines

Last-minute flights going from San Antonio to San Diego

Tue, Nov 3

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$291

$220

One-way

Sat, Nov 7

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$269

$221

One-way

Sat, Nov 7

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$269

$221

One-way

Mon, Nov 9

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$313

$292

One-way

Tue, Nov 10

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$251

$220

One-way

Tue, Nov 10

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$250

$220

One-way

Biggest price drops on these dates for flights from San Antonio to San Diego

1 night

Dec 2 - Dec 3

$360 → $172

52%

5 nights

Dec 2 - Dec 7

$351 → $168

52%

2 nights

Dec 2 - Dec 4

$360 → $178

51%

3 nights

Dec 7 - Dec 10

$356 → $177

50%

Popular Airports to fly from San Antonio to San Diego

San Antonio - San Diego route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from San Antonio to San Diego are below the typical level for this route.

📅 Best time to fly

Fly in December or January for the best prices

Historically, the cheapest months to fly from San Antonio to San Diego are December and January.

⏱️ Flight duration

Direct flights take 3h 0m

The median flight time for direct flights from San Antonio to San Diego is 3h 0m.

✈️ Airlines & availability

Connecting flights are dominant for this route

Only 20% of recent flights from San Antonio to San Diego are direct, with connecting flights dominant.

🏆 Airline highlight

Frontier Airlines offers the most direct deals

Frontier Airlines has 75 direct deals, more than any other airline on this route.

🎯 Booking tip

Deals appear regularly for this route

Deals for flights from San Antonio to San Diego appear regularly, typically every 30 days.

San Antonio main airports to depart from

San Antonio International (SAT)

Cheapest

San Antonio International Airport is a convenient choice for flights from San Antonio to San Diego.

📍 ~12 km from city center (reachable by car)

💸 Flights from ~$223

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is a convenient arrival choice for flights from San Antonio.

📍 ~3 km from San Diego (reachable by car)

💸 Flights from ~$210

Airports nearby San Diego used as alternative

Tijuana International (TIJ)

Tijuana International (TIJ) is a convenient alternative for Mexico-bound travelers via the Cross Border Xpress (CBX).

📍 ~25 km from San Diego (reachable by car and CBX)

💸 Flights from ~$276

Business & First Class Flight Deals to San Diego

Discover luxury on the budget with premium cabin class on flights from San Antonio to San Diego.

Elite

Best Elite deals to San Diego

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From SAT

Elite

Dec 09

San Diego, United States

84% AI deal score

$1,498

$802

Save $696

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 07

San Diego, United States

84% AI deal score

$1,492

$802

Save $690

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 10

San Diego, United States

84% AI deal score

$1,500

$802

Save $698

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 12

San Diego, United States

84% AI deal score

$1,525

$808

Save $717

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 13

San Diego, United States

84% AI deal score

$1,550

$813

Save $737

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 05

San Diego, United States

82% AI deal score

$1,275

$808

Save $467

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 09

San Diego, United States

82% AI deal score

$1,287

$813

Save $474

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 11

San Diego, United States

82% AI deal score

$1,526

$894

Save $632

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 03

San Diego, United States

80% AI deal score

$1,483

$934

Save $549

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Nov 19

San Diego, United States

79% AI deal score

$1,879

$1,184

Save $695

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 02

San Diego, United States

79% AI deal score

$1,424

$978

Save $446

Alaska Airlines, Inc.

Business Class

From SAT

Elite

Dec 04

San Diego, United States

78% AI deal score

$1,269

$940

Save $329

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to San Diego

Historically, the best prices for flights from San Antonio to San Diego are found when booking 28-59 days in advance. During this period, the average price was around $725. Booking within 0-6 days of departure typically saw prices rise to an average of $1236. Even further out, 60+ days in advance, the average price was about $1270, indicating that booking too early might not secure the lowest fare.

Across the trailing quarter, a good price for a flight from San Antonio to San Diego was considered to be $438 or less. The median price for this route during the same period was $660. Fares around $1006 or higher were in the more expensive range. These figures are based on a 90-day analysis of flight prices.

Historically, the cheapest months to fly from San Antonio to San Diego are December and January, both with a median price of $387. August also shows a relatively lower median price of $568. The annual median price for this route is $660, indicating that these months offer significant savings compared to the yearly average. These insights are based on a 270-day analysis of flight prices.

Related routes

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Flights to San Diego from other cities

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San Antonio to San Diego: Overview

Insights for flights from San Antonio to San Diego

How much is a round trip from San Antonio to San Diego

Regular price: $270 - $388

Prices for flights from San Antonio to San Diego are currently below the regular range.

The regular price range for flights from San Antonio to San Diego is typically between $270 and $388. The current lowest deal is $168 with Frontier Airlines for travel from Dec 2-Dec 7.

now $168

Low $270

High $388

The cheapest time to fly from San Antonio to San Diego

January

Cheapest

Flights from $387

July

Most Expensive

Flights from $1,073

Jan

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from San Antonio to San Diego

Frontier Airlines

Last-minute flights going from San Antonio to San Diego

Tue, Nov 3

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$291

$220

One-way

Sat, Nov 7

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$269

$221

One-way

Sat, Nov 7

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$269

$221

One-way

Mon, Nov 9

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$313

$292

One-way

Tue, Nov 10

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$251

$220

One-way

Tue, Nov 10

⌛ Last-Minute

SAT - San Diego

San Antonio (SAT) - San Diego (SAN)

Frontier Airlines

$250

$220

One-way

Biggest price drops on these dates for flights from San Antonio to San Diego

1 night

Dec 2 - Dec 3

$360 → $172

52%

5 nights

Dec 2 - Dec 7

$351 → $168

52%

2 nights

Dec 2 - Dec 4

$360 → $178

51%

3 nights

Dec 7 - Dec 10

$356 → $177

50%

Popular Airports to fly from San Antonio to San Diego

San Antonio - San Diego route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from San Antonio to San Diego are below the typical level for this route.

📅 Best time to fly

Fly in December or January for the best prices

Historically, the cheapest months to fly from San Antonio to San Diego are December and January.

⏱️ Flight duration

Direct flights take 3h 0m

The median flight time for direct flights from San Antonio to San Diego is 3h 0m.

✈️ Airlines & availability

Connecting flights are dominant for this route

Only 20% of recent flights from San Antonio to San Diego are direct, with connecting flights dominant.

🏆 Airline highlight

Frontier Airlines offers the most direct deals

Frontier Airlines has 75 direct deals, more than any other airline on this route.

🎯 Booking tip

Deals appear regularly for this route

Deals for flights from San Antonio to San Diego appear regularly, typically every 30 days.

San Antonio main airports to depart from

San Antonio International (SAT)

Cheapest

San Antonio International Airport is a convenient choice for flights from San Antonio to San Diego.

📍 ~12 km from city center (reachable by car)

💸 Flights from ~$223

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is a convenient arrival choice for flights from San Antonio.

📍 ~3 km from San Diego (reachable by car)

💸 Flights from ~$210

Airports nearby San Diego used as alternative

Tijuana International (TIJ)

Tijuana International (TIJ) is a convenient alternative for Mexico-bound travelers via the Cross Border Xpress (CBX).

San Diego, United States

78% AI deal score

$1,269

$940

Save $329

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to San Diego

Cheap Flights from San Antonio to San Diego

Today’s best flight deals from San Antonio to San Diego

San Antonio to San Diego: Overview

Insights for flights from San Antonio to San Diego

How much is a round trip from San Antonio to San Diego

The cheapest time to fly from San Antonio to San Diego

Direct flights from San Antonio to San Diego

Last-minute flights going from San Antonio to San Diego

Biggest price drops on these dates for flights from San Antonio to San Diego

Popular Airports to fly from San Antonio to San Diego

San Antonio - San Diego route insights

Recent fares are below the typical level

Fly in December or January for the best prices

Direct flights take 3h 0m

Connecting flights are dominant for this route

Frontier Airlines offers the most direct deals

Deals appear regularly for this route

San Antonio main airports to depart from

San Diego main airports to arrive at

Airports nearby San Diego used as alternative

Business & First Class Flight Deals to San Diego

Best Elite deals to San Diego

Dec 09

Dec 07

Dec 10

Dec 12

Dec 13

Dec 05

Dec 09

Dec 11

Dec 03

Nov 19

Dec 02

Dec 04

Frequently Asked Questions About Flights to San Diego

How early should I book San Antonio to San Diego flights to get the cheapest price?

What's a cheap fare from San Antonio to San Diego?

When is the cheapest time of year to fly from San Antonio to San Diego?

Can I fly direct from San Antonio to San Diego?

How long does it take to fly from San Antonio to San Diego?

How often do cheap flights from San Antonio to San Diego come up?

Related routes

More routes from San Antonio

Flights to San Diego from other cities

San Antonio to San Diego: Overview

Insights for flights from San Antonio to San Diego

How much is a round trip from San Antonio to San Diego

The cheapest time to fly from San Antonio to San Diego

Direct flights from San Antonio to San Diego

Last-minute flights going from San Antonio to San Diego

Biggest price drops on these dates for flights from San Antonio to San Diego

Popular Airports to fly from San Antonio to San Diego

San Antonio - San Diego route insights

Recent fares are below the typical level

Fly in December or January for the best prices

Direct flights take 3h 0m

Connecting flights are dominant for this route

Frontier Airlines offers the most direct deals

Deals appear regularly for this route

San Antonio main airports to depart from

San Diego main airports to arrive at

Airports nearby San Diego used as alternative

Business & First Class Flight Deals to San Diego

Best Elite deals to San Diego

Dec 09

Dec 07

Dec 10

Dec 12

Dec 13

Dec 05

Dec 09

Dec 11

Dec 03

Nov 19

Dec 02

Dec 04

Frequently Asked Questions About Flights to San Diego

How early should I book San Antonio to San Diego flights to get the cheapest price?

What's a cheap fare from San Antonio to San Diego?

When is the cheapest time of year to fly from San Antonio to San Diego?