What is the most punctual flight time for Denver to San Diego flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

Alaska Airlines, Southwest, and United Airlines are the most popular carriers operating from Denver Intl to San Diego

How many flights depart from Denver to San Diego on average per week?

As of November 2026, there are 167 flights per week flying from Denver to San Diego. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How often are flights from Denver to San Diego delayed?

Historically, on average around 21% of flights between Denver and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

How many flights depart from Denver to San Diego on average per day?

23 flights are operational daily from Denver to San Diego as of November 2026. The most popular departure time for this route is 11:00, with 34% of flights per day taking off in the afternoon.

Which airline has the best punctuality record on Denver to San Diego flights?

According to our data, Alaska Airlines have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

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

Prices for flights from Denver Intl Airport to San Diego Airport are updated daily.

How old do you have to be to fly from Denver Intl 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to San Diego Airport.

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

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

R1 313 Cheap Flights from Denver to San Diego in 2026/27

Find the cheapest flights from Denver to San Diego

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

13:45 - 15:16DEN Denver Intl-SAN San Diego

2h 31mdirect

18:39 - 22:15SAN San Diego-DEN Denver Intl

2h 36mdirect

R2 526Alaska Airlines

Thu, Jan 21 - Thu, Jan 21

20:00 - 21:50DEN Denver Intl-SAN San Diego

2h 50mdirect

6:45 - 10:16SAN San Diego-DEN Denver Intl

2h 31mdirect

R2 609Alaska Airlines

Wed, Nov 25 - Thu, Nov 26

6:10 - 7:40DEN Denver Intl-SAN San Diego

2h 30mdirect

12:35 - 17:40SAN San Diego-DEN Denver Intl

4h 05m1 stop Santa Barbara

R2 708Southwest

Fri, Dec 4 - Fri, Dec 4

15:50 - 20:00DEN Denver Intl-SAN San Diego

5h 10m1 stop Las Vegas Harry Reid Intl

21:05 - 0:30SAN San Diego-DEN Denver Intl

2h 25mdirect

R2 775Southwest

Wed, Nov 25 - Wed, Nov 25

15:20 - 18:45DEN Denver Intl-SAN San Diego

4h 25m1 stop Fresno Airterminal

8:30 - 13:30SAN San Diego-DEN Denver Intl

4h 00m1 stop Tucson

R2 791Southwest

Sun, Jan 31 - Thu, Feb 4

16:55 - 19:55DEN Denver Intl-SAN San Diego

4h 00m1 stop Tucson

8:30 - 13:25SAN San Diego-DEN Denver Intl

3h 55m1 stop Albuquerque

R2 858Southwest

Sun, Dec 6 - Sun, Dec 13

15:40 - 18:45DEN Denver Intl-SAN San Diego

4h 05m1 stop Tucson

7:15 - 14:00SAN San Diego-DEN Denver Intl

5h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

R2 958Southwest

Fri, Jan 22 - Sat, Jan 30

7:40 - 9:10DEN Denver Intl-SAN San Diego

2h 30mdirect

6:45 - 10:19SAN San Diego-DEN Denver Intl

2h 34mdirect

R2 991United Airlines

Fri, Nov 20 - Sun, Nov 22

17:45 - 20:50DEN Denver Intl-SAN San Diego

4h 05m1 stop Albuquerque

6:15 - 12:50SAN San Diego-DEN Denver Intl

5h 35m2 stops Las Vegas Harry Reid Intl Colorado Springs

R3 024Southwest

Mon, Dec 21 - Fri, Dec 25

19:59 - 21:46DEN Denver Intl-SAN San Diego

2h 47mdirect

6:45 - 10:16SAN San Diego-DEN Denver Intl

2h 31mdirect

R3 107Alaska Airlines

Thu, Nov 19 - Tue, Nov 24

Cheap last-minute flights

Enter your travel dates to find the best prices.

18:45 - 22:43DEN Denver Intl-SAN San Diego

4h 58m1 stop Los Angeles

11:05 - 19:04SAN San Diego-DEN Denver Intl

6h 59m1 stop Los Angeles

R4 603Delta

Fri, Nov 6 - Wed, Nov 25

8:30 - 12:15DEN Denver Intl-SAN San Diego

4h 45m1 stop Reno

15:00 - 20:45SAN San Diego-DEN Denver Intl

4h 45m1 stop Oakland

R4 785Southwest

Mon, Nov 9 - Sat, Nov 14

8:50 - 13:00DEN Denver Intl-SAN San Diego

5h 10m2 stops Colorado Springs Phoenix Sky Harbor Intl

15:00 - 20:45SAN San Diego-DEN Denver Intl

4h 45m1 stop Oakland

R4 868Southwest

Tue, Nov 10 - Sat, Nov 14

12:53 - 18:04DEN Denver Intl-SAN San Diego

6h 11m1 stop Salt Lake City

15:59 - 23:59SAN San Diego-DEN Denver Intl

7h 00m1 stop Los Angeles

R4 935Delta

Tue, Nov 10 - Thu, Nov 19

8:50 - 13:00DEN Denver Intl-SAN San Diego

5h 10m2 stops Colorado Springs Phoenix Sky Harbor Intl

17:25 - 22:30SAN San Diego-DEN Denver Intl

4h 05m1 stop Phoenix Sky Harbor Intl

R4 952Southwest

Tue, Nov 10 - Mon, Nov 16

8:30 - 12:15DEN Denver Intl-SAN San Diego

4h 45m1 stop Reno

9:15 - 16:35SAN San Diego-DEN Denver Intl

6h 20m2 stops Oakland Boise Air Term. Gowen Fld

R5 284Southwest

Mon, Nov 9 - Sat, Nov 14

8:50 - 13:00DEN Denver Intl-SAN San Diego

5h 10m2 stops Colorado Springs Phoenix Sky Harbor Intl

14:10 - 19:00SAN San Diego-DEN Denver Intl

3h 50m1 stop Phoenix Sky Harbor Intl

R5 865Southwest

Tue, Nov 10 - Thu, Nov 12

10:45 - 15:56DEN Denver Intl-SAN San Diego

6h 11m1 stop Salt Lake City

9:43 - 17:10SAN San Diego-DEN Denver Intl

6h 27m1 stop Salt Lake City

R5 932Delta

Thu, Nov 5 - Sat, Nov 14

7:40 - 9:10DEN Denver Intl-SAN San Diego

2h 30mdirect

8:45 - 12:10SAN San Diego-DEN Denver Intl

2h 25mdirect

R6 264United Airlines

Tue, Nov 10 - Sat, Nov 14

13:25 - 14:55DEN Denver Intl-SAN San Diego

2h 30mdirect

12:37 - 20:00SAN San Diego-DEN Denver Intl

6h 23m1 stop San Francisco

R6 364United Airlines

Tue, Nov 10 - Sat, Nov 14

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Alaska Airlines flights from Denver to San Diego

Our best Alaska Airlines deals on Denver to San Diego flight tickets

Alaska Airlines

Jan 21

DEN13:45Denver Intl

2h 31m

SAN15:16San Diego

Jan 21

SAN18:39San Diego

2h 36m

DEN22:15Denver Intl

R2 526

Alaska Airlines

Nov 25

DEN20:00Denver Intl

2h 50m

SAN21:50San Diego

Nov 26

SAN6:45San Diego

2h 31m

DEN10:16Denver Intl

R2 609

Alaska Airlines

Nov 19

DEN19:59Denver Intl

2h 47m

SAN21:46San Diego

Nov 24

SAN6:45San Diego

2h 31m

DEN10:16Denver Intl

R3 107

Delta flights from Denver to San Diego

Our best Delta deals on Denver to San Diego flight tickets

Delta

Dec 7

DEN12:52Denver Intl

7h 14m

1 stop

SAN19:06San Diego

Dec 15

SAN13:36San Diego

5h 56m

1 stop

DEN20:32Denver Intl

R3 273

Delta

Nov 16

DEN8:10Denver Intl

5h 14m

1 stop

SAN12:24San Diego

Nov 19

SAN11:05San Diego

6h 47m

1 stop

DEN18:52Denver Intl

R3 938

Delta

Dec 13

DEN6:45Denver Intl

4h 42m

1 stop

SAN10:27San Diego

Dec 16

SAN16:11San Diego

6h 51m

1 stop

DEN0:02Denver Intl

R4 104

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Thu 21/1

13:45-15:16

Nonstop2h 31m

San Diego

Thu 21/1

18:39-22:15

Nonstop2h 36m

R2 526

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Wed 25/11

20:00-21:50

Nonstop2h 50m

San Diego

Thu 26/11

6:45-10:16

Nonstop2h 31m

R2 609

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Fri 4/12

6:10-7:40

Nonstop2h 30m

San Diego

Fri 4/12

12:35-17:40

1 stop4h 05m

R2 708

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Wed 25/11

15:50-20:00

1 stop5h 10m

San Diego

Wed 25/11

21:05-0:30

Nonstop2h 25m

R2 775

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Sun 31/1

15:20-18:45

1 stop4h 25m

San Diego

Thu 4/2

8:30-13:30

1 stop4h 00m

R2 791

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Sun 6/12

16:55-19:55

1 stop4h 00m

San Diego

Sun 13/12

8:30-13:25

1 stop3h 55m

R2 858

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Fri 22/1

15:40-18:45

1 stop4h 05m

San Diego

Sat 30/1

7:15-14:00

2 stops5h 45m

R2 958

Fastest return journey

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Fri 20/11

7:40-9:10

Nonstop2h 30m

San Diego

Sun 22/11

6:45-10:19

Nonstop2h 34m

R2 991

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Mon 21/12

17:45-20:50

1 stop4h 05m

San Diego

Fri 25/12

6:15-12:50

2 stops5h 35m

R3 024

DenverSan Diego

DEN Denver Intl - SAN San Diego

DENSAN

Denver Intl

Thu 19/11

19:59-21:46

Nonstop2h 47m

San Diego

Tue 24/11

6:45-10:16

Nonstop2h 31m

R3 107

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver 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

Delays

Other information

What is the typical price of a round-trip flight between Denver and San Diego?

Prices are currently low for flights on this route.

Typical prices usually range from R3 190 to R5 334.
The lowest price recently found on this route was R2 526.

What is the cheapest month to fly to San Diego?

The month of February is, on average, the cheapest month to fly to San Diego from Denver, with most prices found around R2 027. The month of January is another great option to travel to San Diego, with average flight prices from Denver averaging around R2 243.

What is the cheapest Denver Intl to San Diego flight route?

Fly from Denver Intl to San Diego for the best Denver Intl - San Diego flight prices

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

You are more likely to see cheaper flights to San Diego from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around R3 445 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Denver for as low as R2 708 on momondo.

What cabin class options are available on Denver to San Diego flights?

There is only 1 cabin class available to choose from on Denver to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of November 2026, prices for Denver to San Diego flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from Denver to San Diego

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

Estimated return price

Cheap Denver to San Diego (DEN to SAN) flight deals and tips

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

Best price found	R1 313
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from Denver in the past 72 hours is R1 313. The best return flight deal from Denver to San Diego found on momondo in the last 72 hours is R2 526.

Direct flights go from Denver to San Diego every day.

There is 1 airport in San Diego. From Denver there are direct flights to San Diego (SAN).

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Frequently asked questions about flying from Denver to San Diego

How far is Denver Intl to San Diego by plane?
A flight from Denver Intl to San Diego will travel around 1339,5 km.
When did momondo last update prices for flights from Denver Intl Airport to San Diego Airport?
Prices for flights from Denver Intl Airport to San Diego Airport are updated daily.
How old do you have to be to fly from Denver Intl 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Denver to San Diego?
momondo data reveals that the most frequently booked plane model on the route from Denver to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets), representing 16,74% of all bookings. The subsequent popular models are Airbus A321neo at 16,68%, Boeing 737 MAX 8 at 12,00%, and Airbus A321-100/200 at 11,17%.

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to San Diego for you.

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

momondo does allow users to show only those flights to San Diego from Denver which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to San Diego from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Denver to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.