Menu

Cheap flights from Denver to San Diego (DEN - SAN)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Denver to San Diego are usually found in August or January, booked 15 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

How to find the cheapest flight from
Denver (DEN) to San Diego (SAN)

DEN - SAN
Price
$136 - $233
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches

Popular in

December

High demand for flights, 23% potential price rise

Cheapest in

August

Best time to find cheap flights, 25% potential price drop

Round-trip from

$136

From Denver to San Diego

One-way from

$70

One-way flight from Denver to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Denver to San Diego?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 29% on your flight compared to booking on days when demand is much higher.

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

Travelers have found it’s best to book a flight 17 days in advance to save up to 27% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 17 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Denver to San Diego 1-2 weeks in advance for as low as $73, or $98 for flights within the next 24 hours.

What is the cheapest month to fly from Denver to San Diego?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, July can be a great choice for travel to San Diego. Flights to San Diego from Denver in July are about $80 on average during July, but can be found for as low as $44.

When is the cheapest time to fly from Denver to San Diego (DEN - SAN)?

It’s typically best to fly out from Denver to San Diego in the morning. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from Denver to San Diego in January, February 2021

The best prices found for DEN to SAN flights for January, February
26 Feb - 2 Mar
$68pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
25 Feb - 28 Feb
$69pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
25 Feb - 6 Mar
$70pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Denver to San Diego 2021 flight deals

Cheap flights to San Diego from Denver found for this year
27 Mar - 3 Apr
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
6 Mar - 13 Mar
$63pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
26 Feb - 2 Mar
$68pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Non-stop flights to San Diego from Denver

Save time with Denver to San Diego direct flight deals
27 Mar - 3 Apr
$62pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
6 Mar - 13 Mar
$63pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
26 Feb - 2 Mar
$68pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Denver to San Diego

Late deals on round-trip flights to San Diego from Denver, departing today and this week
23 Jan - 6 Feb
$76pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
21 Jan - 1 Feb
$77pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
21 Jan - 24 Jan
$79pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to San Diego from Denver

The cheapest one-way flights from Denver to San Diego
1:02 am - 1:20 pm
American Airlines
2 Stops
13h 18m
DEN - SAN
American Airlines
7:40 am - 3:08 pm
Spirit Airlines
3 Stops
32h 28m
DEN - SAN
Spirit Airlines
$73
Gotogate
1:30 am - 9:58 am
Frontier
2 Stops
9h 28m
DEN - SAN
Frontier
$84
Gotogate

Related info for your journey

Useful info, stats and facts about Denver to San Diego flights.

Flight FAQs

From Denver to San Diego

Are flight prices decreasing from Denver to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Denver and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Denver Intl to San Diego to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Denver Intl to San Diego. Policies will vary by airline.

Which airlines flying from Denver Intl to San Diego have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, Frontier, and Spirit Airlines flying from Denver Intl to San Diego have implemented new flexible cancellation policies.

Can I find flights from Denver to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Denver to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $62, but on average you can expect to pay $76.

Are there nonstop flights from Denver to San Diego for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Denver to San Diego under $100. A good price for a nonstop flight from Denver to San Diego is less than $77.

Are there last-minute flights available from Denver to San Diego for under $100?

There are currently 20+ open flights from Denver to San Diego within the next 7 days for less than $100.

What days are nonstop flights available from Denver to San Diego?

You can find nonstop flights on the following days: Thursday.

How popular is this flight route?

Within the past month, 283 users have taken a look at flights from Denver Intl to San Diego.

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

Travelers can expect 1 flight from Denver Intl to San Diego on average per day.
Morning (6am - Noon) - 100% of flight departures

Does it rain more in Denver or San Diego?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Denver is typically less than San Diego. We can gather that this will continue over the next 5 days.

Is Denver weather warmer or cooler than San Diego?

Our data indicates that the weather will be 90 °F on average in the month of July. The temperature in San Diego is typically colder than in Denver. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Denver to San Diego?

Airlines like Frontier fly from Denver to San Diego in about 2h 22m. The time it takes to get you to your destination is usually consistent. The distance from Denver to San Diego is about 856 mi. All flights are typically nonstop.

What is the cheapest airline to fly from Denver to San Diego round-trip?

Frontier, at $62, was found to be the cheapest airline from Denver to San Diego.. Frontier is priced at 65% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Denver to San Diego one-way?

One-way options have recently been found by users for as low as $38 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $44 and American Airlines from $66 one-way.

Alternative routes for Denver to San Diego

Destination information for San Diego

Things to know before you go. Useful info for your trip from Denver to San Diego
Flight duration
2h 29m
Average temperature for January in San Diego
68.0 °F
Avg rainfall for January in San Diego
2.7 ″

Airports servicing Denver

Airports servicing San Diego

Top 6 airlines flying from Denver to San Diego

The chart below displays the airlines Cheapflights users traveling from Denver to San Diego choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$82 $145 No cancel fee N/A
American Airlines
$57 $160 No cancel fee 71%
Spirit Airlines
$69 $166 No cancel fee 65%
Frontier
$77 $178 No cancel fee 62%
United Airlines
$97 $246 No cancel fee 69%
Southwest
$101 $324 No cancel fee 63%

Hourly flight availability from Denver to San Diego

Morning 6 AM to noon 48% of DEN to SAN departures
Evening 6 PM to midnight 36% of DEN to SAN departures
Afternoon Noon to 6 PM 15% of DEN to SAN departures
Early morning Midnight to 6 AM 1% of DEN to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Denver to San Diego
Sunday
9 daily flights
Monday
8 daily flights
Tuesday
9 daily flights
Wednesday
9 daily flights
Thursday
9 daily flights
Friday
8 daily flights
Saturday
6 daily flights
Home North America USA California San Diego Cheap flights from Denver to San Diego