How many flights from Denver to San Diego are non-stop?

Across the trailing 90 days, approximately 65.1% of flights from Denver to San Diego have been non-stop. For flights that include stopovers, travelers typically experience one stop. This indicates that direct options are frequently available for this route. The majority of available flights historically offer the convenience of a direct journey.

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

The median flight time for a direct flight from Denver to San Diego is 2 hours and 25 minutes. This route covers a distance of 1371 kilometers. For flights that include one stop, the median travel time increases significantly to 6 hours and 2 minutes. Travelers can expect a considerably shorter journey when opting for non-stop service.

Are there frequently good prices on flights from Denver to San Diego?

Historically, good prices on flights from Denver to San Diego are observed frequently. This route consistently offers favorable deals to travelers. The availability of competitive pricing makes it a popular option for those looking to fly between these two cities. Travelers can often find attractive fares when planning their trips.

Flights From Denver

To San Diego

Cheap Flights from Denver to San Diego

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

Deals from

Denver

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

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

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

Today’s best flight deals from Denver to San Diego

Explore current cheapest deals departing from Denver to San Diego

2026-09-08 – 2026-09-15
DEN - San Diego
71% AI deal score
$121
$86
Round trip
2026-09-15 – 2026-09-16
DEN - San Diego
72% AI deal score
$128
$86
Round trip
2026-10-10 – 2026-10-20
DEN - San Diego
65% AI deal score
$107
$86
Round trip
2026-10-20 – 2026-10-24
DEN - San Diego
72% AI deal score
$125
$86
Round trip
2026-08-25 – 2026-08-29
DEN - San Diego
75% AI deal score
$152
$87
Round trip
2026-08-25 – 2026-08-26
DEN - San Diego
76% AI deal score
$154
$87
Round trip
2026-09-16 – 2026-09-22
DEN - San Diego
71% AI deal score
$121
$87
Round trip
2026-09-09 – 2026-09-15
DEN - San Diego
71% AI deal score
$121
$87
Round trip
2026-09-08 – 2026-09-12
DEN - San Diego
71% AI deal score
$128
$87
Round trip
2026-09-09 – 2026-09-12
DEN - San Diego
71% AI deal score
$128
$87
Round trip

Denver to San Diego: Overview

Insights for flights from Denver to San Diego

Right now, 15% of recent fares for flights from Denver to San Diego are classified as a good price. Current fares are above the typical level for this route. Prices typically range from $83–$327, with a median of $174 over the last 90 days. New deals appear almost daily, offering frequent opportunities to find cheap flights from Denver to San Diego.

When considering the cheapest time to fly from Denver to San Diego, the data indicates that April and May are the most affordable months, both with a median fare of $56. November also presents a good option, with a median fare of $89.

A typical journey from Denver to San Diego takes about 2h 25m. This duration reflects the median flight time for all itineraries, including those with connections. For direct flights from Denver to San Diego, the flight time is also approximately 2h 25m.

A meaningful share of itineraries between Denver and San Diego are non-stop, with 65.1% of recent fares being direct flights. For the remaining itineraries that include connections, most involve one stopover.

How much is a round trip from Denver to San Diego

Regular price: $112 - $374

Prices are currently below the regular range.

The regular price range for flights from Denver to San Diego is $112 to $374. The current lowest deal is $86 with Frontier Airlines for travel from Aug 25-Aug 26.

now $86

Low $112

High $374

The cheapest time to fly from Denver to San Diego

Flights from Denver to San Diego are generally lower priced from March to December. The cheapest month to fly is May, with a median price of $56. The most expensive month is January, with a median price of $294.

May

Cheapest

Flights from $56

January

Most Expensive

Flights from $294

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Denver to San Diego

Frontier Airlines

Last-minute flights going from Denver to San Diego

Sat, Aug 8

⌛ Last-Minute

DEN - San Diego

Denver (DEN) - San Diego (SAN)

Frontier Airlines

$303

$163

One-way

Mon, Aug 10

⌛ Last-Minute

DEN - San Diego

Denver (DEN) - San Diego (SAN)

Frontier Airlines

$285

$157

One-way

Tue, Aug 11

⌛ Last-Minute

DEN - San Diego

Denver (DEN) - San Diego (SAN)

Frontier Airlines

$278

$155

One-way

Tue, Aug 11

⌛ Last-Minute

DEN - San Diego

Denver (DEN) - San Diego (SAN)

Frontier Airlines

$279

$156

One-way

Wed, Aug 12

⌛ Last-Minute

DEN - San Diego

Denver (DEN) - San Diego (SAN)

Frontier Airlines

$236

$120

One-way

Wed, Aug 12

⌛ Last-Minute

DEN - San Diego

Denver (DEN) - San Diego (SAN)

Frontier Airlines

$260

$126

One-way

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

4 nights

Aug 20 - Aug 24

$264 → $111

58%

3 nights

Aug 22 - Aug 25

$264 → $117

56%

4 nights

Aug 18 - Aug 22

$266 → $122

54%

4 nights

Aug 8 - Aug 12

$303 → $163

46%

Popular Airports to fly from Denver to San Diego

Denver - San Diego route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Denver to San Diego are above the typical level at $86.

📅 Best time to fly

Fly in May for the best prices

Historically, May is the cheapest month to fly, with a median price of $56.

⏱️ Flight duration

Direct flights take 2h 25m

The typical direct flight from Denver to San Diego takes 2 hours and 25 minutes.

✈️ Airlines & availability

65.1% of flights are direct

65.1% of recent flights from Denver to San Diego are direct, with frequent deals.

🏆 Airline highlight

Frontier Airlines offers direct flights

Frontier Airlines provides direct flights on this route, with deals available.

🎯 Booking tip

Deals are frequent on this route

Deals for flights from Denver to San Diego are frequent, appearing often.

Denver main airports to depart from

Denver International (DEN)

Cheapest

Denver International Airport is a great option for flights from Denver to San Diego.

📍 ~30 km from city center (reachable by car or train)

💸 Flights from ~$80

San Diego main airports to arrive at

San Diego International (SAN)

Cheapest

San Diego International Airport is the primary airport for flights arriving in San Diego from Denver.

📍 ~3 km from city center (reachable by car)

💸 Flights from ~$80

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) terminal.

📍 ~30 km from San Diego (reachable by car)

💸 Flights from ~$354

Business & First Class Flight Deals to San Diego

76% AI deal score

$641

$439

Save $202

Frequently Asked Questions About Flights to San Diego

Historically, the optimal booking window for flights from Denver to San Diego is typically between 28 and 59 days prior to departure. During this period, the average price observed was $128. Booking within 0-6 days of departure generally sees prices around $200, while booking 7-13 days out averages $137. Prices tend to be higher for bookings made more than 60 days in advance, averaging $183.

A good deal for a flight from Denver to San Diego is considered to be $83 or less, based on historical data across the trailing quarter. The median price for this route has been $174. Prices can range significantly, with 75% of observed prices being $327 or less. Therefore, if you find a fare at or below $83, it represents a particularly favorable price.

Historically, the cheapest months to fly from Denver to San Diego are April and May, both with a median price of $56. November also offers competitive pricing, with a median of $89. The annual median price for this route is $174. While November is listed as a cheapest month, it was also the most expensive month in the trailing 270 days, indicating price variability.

Related routes

More routes from Denver

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Flights to San Diego from other cities

Flights from Dallas to San Diego Flights from Detroit to San Diego Flights from Dublin to San Diego Flights from El Paso to San Diego Flights from Fresno to San Diego Flights from Hong Kong to San Diego Flights from Honolulu to San Diego Flights from Houston to San Diego Flights from Indianapolis to San Diego Flights from Las Vegas to San Diego Flights from Los Angeles to San Diego Flights from Spokane to San Diego

Denver to San Diego: Overview

Insights for flights from Denver to San Diego

How much is a round trip from Denver to San Diego

Regular price: $112 - $374

Prices are currently below the regular range.

The regular price range for flights from Denver to San Diego is $112 to $374. The current lowest deal is $86 with Frontier Airlines for travel from Aug 25-Aug 26.

now $86

Low $112

High $374

The cheapest time to fly from Denver to San Diego

May

Cheapest

Flights from $56

January

Most Expensive

Flights from $294

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec