Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to San Diego from $23

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to San Diego departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Denver to San Diego

Cheap round-trip flights

These are some of the best round-trip flight deals from Denver to San Diego that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Denver to San Diego.

Cheap last minute flights

Planning a quick getaway from Denver to San Diego? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Diego, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Denver to San Diego

Find recent round-trip train or bus tickets from Denver to San Diego.

All round-trip flight deals from Denver to San Diego

The cheapest plane tickets from Denver to San Diego found on KAYAK recently.
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
12:48 pm - 4:16 pmSAN-DEN
2h 28mnonstop
$51Frontier
Find Deal
mié., feb. 26 - sáb., mar. 1
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$52Frontier
Find Deal
sáb., mar. 1 - mié., mar. 5
10:05 am - 11:48 amDEN-SAN
2h 43mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$53Frontier
Find Deal
mié., feb. 19 - mar., feb. 25
10:05 am - 11:48 amDEN-SAN
2h 43mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$56Frontier
Find Deal
mié., feb. 19 - mié., feb. 26
10:15 pm - 11:52 pmDEN-SAN
2h 37mnonstop
12:48 pm - 4:16 pmSAN-DEN
2h 28mnonstop
$57Frontier
Find Deal
mar., feb. 11 - mié., feb. 12
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
6:15 am - 2:31 pmSAN-DEN
7h 16m1 stop
jue., feb. 20 - dom., feb. 23
10:15 am - 2:59 pmDEN-SAN
5h 44m1 stop
6:15 am - 12:19 pmSAN-DEN
5h 04m1 stop
$172United Airlines
Find Deal
mié., feb. 19 - mar., feb. 25
10:15 pm - 9:17 amDEN-SAN
12h 02m1 stop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
vie., ene. 31 - dom., feb. 2
6:25 am - 2:24 pmDEN-SAN
8h 59m1 stop
1:25 pm - 12:17 amSAN-DEN
9h 52m1 stop
$203Delta
Find Deal
mié., feb. 19 - mié., feb. 26
6:05 pm - 11:58 pmDEN-SAN
6h 53m1 stop
5:45 pm - 11:00 pmSAN-DEN
4h 15m1 stop
$217Delta
Find Deal
mar., feb. 18 - dom., feb. 23
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
$23Frontier
Find Deal
mar., feb. 25
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
$24Frontier
Find Deal
mié., feb. 26
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
$28Frontier
Find Deal
mié., feb. 19
10:15 am - 2:59 pmDEN-SAN
5h 44m1 stop
$84United Airlines
Find Deal
mié., feb. 19
9:40 pm - 11:10 pmDEN-SAN
2h 30mnonstop
$99Southwest
Find Deal
lun., mar. 17
11:37 am - 3:39 pmDEN-SAN
5h 02m1 stop
$100American Airlines
Find Deal
mié., feb. 19
6:25 am - 2:24 pmDEN-SAN
8h 59m1 stop
$102Delta
Find Deal
mié., feb. 19
10:15 am - 2:59 pmDEN-SAN
5h 44m1 stop
$104United Airlines
Find Deal
jue., feb. 20
5:40 am - 9:10 amDEN-SAN
4h 30m1 stop
$109Delta
Find Deal
sáb., feb. 22
5:20 am - 9:00 amDEN-SAN
4h 40m1 stop
$163Southwest
Find Deal
dom., mar. 30
10:15 pm - 11:52 pmDEN-SAN
2h 37mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$177Frontier
Find Deal
sáb., ene. 25 - jue., ene. 30
10:51 am - 8:48 pmDEN-SAN
10h 57m1 stop
4:06 pm - 7:33 pmSAN-DEN
2h 27mnonstop
$204Frontier
Find Deal
dom., ene. 26 - jue., feb. 20
5:50 pm - 10:18 pmDEN-SAN
29h 28m3 stops
7:41 pm - 1:30 pmSAN-DEN
16h 49m3 stops
dom., ene. 26 - jue., feb. 20
5:50 pm - 10:18 pmDEN-SAN
29h 28m3 stops
6:05 pm - 11:54 amSAN-DEN
16h 49m1 stop
dom., ene. 26 - jue., feb. 20
6:00 am - 9:32 amDEN-SAN
4h 32m1 stop
10:15 am - 9:15 pmSAN-DEN
10h 00m2 stops
$460United Airlines
Find Deal
dom., ene. 26 - lun., ene. 27
2:07 pm - 7:25 pmDEN-SAN
6h 18m1 stop
6:15 am - 11:29 pmSAN-DEN
16h 14m2 stops
$570Alaska Airlines
Find Deal
dom., ene. 26 - jue., feb. 20
4:45 pm - 8:20 amDEN-SAN
16h 35m2 stops
6:20 am - 1:07 pmSAN-DEN
5h 47m1 stop
$627Alaska Airlines
Find Deal
vie., ene. 24 - lun., ene. 27
7:17 pm - 10:16 amDEN-SAN
15h 59m2 stops
8:51 pm - 8:56 amSAN-DEN
11h 05m2 stops
$665United Airlines
Find Deal
mié., ene. 22 - dom., ene. 26
5:40 am - 9:10 amDEN-SAN
4h 30m1 stop
6:15 am - 11:37 amSAN-DEN
4h 22m1 stop
$882Delta
Find Deal
vie., ene. 24 - mar., ene. 28
2:55 pm - 7:09 pmDEN-SAN
5h 14m1 stop
10:58 am - 6:02 pmSAN-DEN
6h 04m1 stop
$1,107Delta
Find Deal
mié., ene. 22 - dom., ene. 26
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
12:48 pm - 4:16 pmSAN-DEN
2h 28mnonstop
$51Frontier
Find Deal
mié., feb. 26 - sáb., mar. 1
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$52Frontier
Find Deal
sáb., mar. 1 - mié., mar. 5
10:05 am - 11:48 amDEN-SAN
2h 43mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$53Frontier
Find Deal
mié., feb. 19 - mar., feb. 25
10:05 am - 11:48 amDEN-SAN
2h 43mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$56Frontier
Find Deal
mié., feb. 19 - mié., feb. 26
9:55 pm - 11:25 pmDEN-SAN
2h 30mnonstop
8:50 pm - 12:10 amSAN-DEN
2h 20mnonstop
$177Southwest
Find Deal
sáb., mar. 1 - dom., mar. 2
9:40 pm - 11:10 pmDEN-SAN
2h 30mnonstop
7:55 pm - 11:15 pmSAN-DEN
2h 20mnonstop
$197Southwest
Find Deal
lun., mar. 31 - jue., abr. 3
9:05 pm - 10:40 pmDEN-SAN
2h 35mnonstop
7:00 am - 10:28 amSAN-DEN
2h 28mnonstop
$282United Airlines
Find Deal
sáb., mar. 15 - mié., mar. 19
7:40 pm - 9:10 pmDEN-SAN
2h 30mnonstop
8:35 am - 12:03 pmSAN-DEN
2h 28mnonstop
$307United Airlines
Find Deal
lun., feb. 3 - sáb., feb. 8
6:45 am - 8:25 amDEN-SAN
2h 40mnonstop
11:20 am - 2:45 pmSAN-DEN
2h 25mnonstop
$309Southwest
Find Deal
lun., mar. 17 - lun., mar. 17
8:00 am - 9:30 amDEN-SAN
2h 30mnonstop
4:11 pm - 7:39 pmSAN-DEN
2h 28mnonstop
$347United Airlines
Find Deal
dom., feb. 2 - dom., feb. 2

Frontier flights from Denver to San Diego

Our best Frontier deals on Denver to San Diego flight tickets
Frontier
Feb 26
DEN10:43 pmDenver Intl
2h 37m
SAN12:20 amSan Diego
Mar 1
SAN12:48 pmSan Diego
2h 28m
DEN4:16 pmDenver Intl
Frontier
Mar 1
DEN10:43 pmDenver Intl
2h 37m
SAN12:20 amSan Diego
Mar 5
SAN6:25 amSan Diego
2h 31m
DEN9:56 amDenver Intl
Frontier
Feb 19
DEN10:05 amDenver Intl
2h 43m
SAN11:48 amSan Diego
Feb 25
SAN6:25 amSan Diego
2h 31m
DEN9:56 amDenver Intl

Alaska Airlines flights from Denver to San Diego

Our best Alaska Airlines deals on Denver to San Diego flight tickets
Alaska Airlines
Feb 4
DEN7:00 amDenver Intl
27h 17m
2 stops
SAN9:17 amSan Diego
Feb 7
SAN6:20 amSan Diego
5h 47m
1 stop
DEN1:07 pmDenver Intl
Alaska Airlines
Feb 1
DEN12:04 pmDenver Intl
8h 08m
1 stop
SAN7:12 pmSan Diego
Feb 8
SAN7:55 pmSan Diego
18h 54m
2 stops
DEN3:49 pmDenver Intl
Alaska Airlines
Feb 3
DEN2:07 pmDenver Intl
20h 10m
2 stops
SAN9:17 amSan Diego
Feb 6
SAN6:20 amSan Diego
5h 47m
1 stop
DEN1:07 pmDenver Intl

See travel insights to San Diego from

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

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of May, then departing from Denver during the month April is also very affordable. Most momondo users find prices during this month for around $139.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Denver to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $145. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $228. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $160. Flights at noon are often more expensive with an average ticket price of $286.

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 to San Diego?

You are more likely to see cheaper flights to San Diego from Denver when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $172 when searching 5 weeks out.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 $129 on momondo.

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

There are 4 cabin classes available to choose from on Denver Intl 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 January 2025, prices for Denver to San Diego flights are approximately 3% more expensive 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 round-trip 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

$23

Fastest flight time

2h 24m

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 $23. The best round-trip flight deal from Denver to San Diego found on momondo in the last 72 hours is $51.
The fastest flight from Denver to San Diego takes 2h 24m
Direct flights go from Denver to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is Denver Intl to San Diego by plane?

    Denver Intl and San Diego are 832.3 mi apart from one another. By plane, this route typically takes 2h 24m.

  • 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 were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to San Diego Airport?

  • How old do you have to be to fly from Denver Intl Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Denver to San Diego?

  • What is the most popular airline from Denver to San Diego?


Best airlines flying from Denver to San Diego

Compare and see reviews for airlines that fly from Denver to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $56Free CancellationRating
6.0
3,443 reviews
Search Frontier flights
United AirlinesPriceFrom $154Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
SouthwestPriceFrom $158Free CancellationRating
8.1
4,662 reviews
Search Southwest flights
DeltaPriceFrom $196Free CancellationRating
8.0
8,521 reviews
Search Delta flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Denver to San Diego

    Southwest is one of the most popular airlines flying from Denver to San Diego, operating 53 flights/week on average for this route. A good Southwest flight deal for Denver to San Diego starts from $158 round-trip, up to an average price of $263. Our users have rated Southwest at 8.1/10.

  • United Airlines Flights From Denver to San Diego

    Across 8,984 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Denver to San Diego about 33 times each week, with ticket deals ranging from $154 to $305. Price data is based on momondo searches in the last 72 hours.


Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
Coronado
El Cajon
Julian
La Mesa
National City
Lemon Grove
San Ysidro
Alpine
Borrego Springs
Imperial Beach
Poway
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Denver 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 Denver.

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

Yes. All flights to San Diego from Denver on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Denver to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Denver to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
dom. 1/26
dom. 2/2
Email me momondo's favorite deals

Find better results for your trip to the United States