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Cheap flights from Denver to San Diego from $28

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 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 to San Diego

The cheapest plane tickets to San Diego found on KAYAK recently.
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
12:01 pm - 3:28 pmSAN-DEN
2h 27mnonstop
$57Frontier
Find Deal
Tue, Jan 7 - Sat, Jan 11
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
3:58 pm - 7:26 pmSAN-DEN
2h 28mnonstop
$58Frontier
Find Deal
Wed, Jan 15 - Sat, Jan 18
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
2:32 pm - 5:58 pmSAN-DEN
2h 26mnonstop
$60Frontier
Find Deal
Wed, Jan 8 - Tue, Jan 14
10:43 pm - 12:14 amDEN-SAN
2h 31mnonstop
4:00 pm - 11:58 pmSAN-DEN
6h 58m1 stop
Wed, Apr 2 - Wed, Apr 9
10:43 pm - 12:20 amDEN-SAN
2h 37mnonstop
7:20 am - 9:20 pmSAN-DEN
13h 00m2 stops
Tue, Feb 18 - Tue, Feb 25
7:40 pm - 9:10 pmDEN-SAN
2h 30mnonstop
7:00 am - 10:28 amSAN-DEN
2h 28mnonstop
$197United Airlines
Find Deal
Fri, Feb 7 - Mon, Feb 10
9:40 am - 11:15 amDEN-SAN
2h 35mnonstop
6:30 pm - 9:50 pmSAN-DEN
2h 20mnonstop
$198Southwest
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Thu, Jan 30 - Thu, Jan 30
6:50 am - 10:18 amDEN-SAN
4h 28m1 stop
5:45 pm - 11:00 pmSAN-DEN
4h 15m1 stop
$216Delta
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Wed, Jan 8 - Wed, Jan 15
8:00 am - 9:30 amDEN-SAN
2h 30mnonstop
7:00 am - 10:28 amSAN-DEN
2h 28mnonstop
$237United Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 19
6:50 am - 10:18 amDEN-SAN
4h 28m1 stop
10:58 am - 5:58 pmSAN-DEN
6h 00m1 stop
$247Delta
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Mon, Feb 24 - Tue, Feb 25
9:22 am - 11:01 amDEN-SAN
2h 39mnonstop
$28Frontier
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Sat, Jan 25
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
$29Frontier
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Wed, Jan 8
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
$30Frontier
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Wed, Jan 8
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
$32Frontier
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Tue, Jan 14
6:00 am - 10:15 amDEN-SAN
5h 15m1 stop
$88United Airlines
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Tue, Feb 18
11:37 am - 3:39 pmDEN-SAN
5h 02m1 stop
$99American Airlines
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Tue, Feb 18
10:15 am - 2:59 pmDEN-SAN
5h 44m1 stop
$104United Airlines
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Thu, Feb 20
6:05 pm - 11:58 pmDEN-SAN
6h 53m1 stop
$128Delta
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Thu, Jan 16
7:00 am - 1:35 pmDEN-SAN
7h 35m2 stops
$139Southwest
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Thu, Jan 30
7:00 am - 1:35 pmDEN-SAN
7h 35m2 stops
$169Southwest
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Wed, Feb 12
10:26 pm - 9:16 amDEN-SAN
11h 50m1 stop
9:17 pm - 7:24 amSAN-DEN
9h 07m1 stop
$238Frontier
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Tue, Dec 24 - Thu, Jan 2
10:21 pm - 9:16 amDEN-SAN
11h 55m1 stop
9:41 pm - 7:39 amSAN-DEN
8h 58m1 stop
$279Frontier
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Sun, Dec 22 - Sat, Jan 4
10:21 pm - 9:56 amDEN-SAN
12h 35m1 stop
9:10 pm - 3:54 amSAN-DEN
5h 44m1 stop
$285Frontier
Find Deal
Mon, Dec 23 - Thu, Dec 26
10:26 pm - 9:16 amDEN-SAN
11h 50m1 stop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$286Frontier
Find Deal
Tue, Dec 24 - Thu, Jan 2
11:31 am - 5:19 pmDEN-SAN
6h 48m1 stop
10:16 am - 6:32 pmSAN-DEN
7h 16m1 stop
Tue, Dec 24 - Wed, Dec 25
11:31 am - 5:19 pmDEN-SAN
6h 48m1 stop
7:16 pm - 9:08 amSAN-DEN
12h 52m2 stops
Tue, Dec 24 - Mon, Dec 30
11:45 am - 6:11 pmDEN-SAN
7h 26m2 stops
3:36 pm - 10:50 pmSAN-DEN
6h 14m1 stop
$732United Airlines
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Tue, Dec 24 - Thu, Dec 26
3:55 pm - 5:20 pmDEN-SAN
2h 25mnonstop
8:15 pm - 11:40 pmSAN-DEN
2h 25mnonstop
$811Southwest
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Fri, Dec 20 - Fri, Dec 20
11:31 am - 1:01 pmDEN-SAN
2h 30mnonstop
6:47 pm - 10:15 pmSAN-DEN
2h 28mnonstop
$817United Airlines
Find Deal
Fri, Dec 20 - Mon, Dec 23
6:29 pm - 10:29 pmDEN-SAN
5h 00m1 stop
6:15 am - 11:42 amSAN-DEN
4h 27m1 stop
$831Delta
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Tue, Dec 24 - Fri, Dec 27
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
2:32 pm - 5:58 pmSAN-DEN
2h 26mnonstop
$58Frontier
Find Deal
Wed, Jan 8 - Wed, Jan 15
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
2:32 pm - 5:58 pmSAN-DEN
2h 26mnonstop
$60Frontier
Find Deal
Wed, Jan 8 - Tue, Jan 14
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$63Frontier
Find Deal
Wed, Jan 8 - Sat, Jan 11
10:15 pm - 11:49 pmDEN-SAN
2h 34mnonstop
12:01 pm - 3:28 pmSAN-DEN
2h 27mnonstop
$68Frontier
Find Deal
Tue, Jan 7 - Sat, Jan 11
9:22 am - 11:01 amDEN-SAN
2h 39mnonstop
6:25 am - 9:56 amSAN-DEN
2h 31mnonstop
$69Frontier
Find Deal
Sat, Jan 18 - Sun, Jan 19
7:40 pm - 9:10 pmDEN-SAN
2h 30mnonstop
7:00 am - 10:28 amSAN-DEN
2h 28mnonstop
$197United Airlines
Find Deal
Fri, Feb 7 - Mon, Feb 10
9:40 am - 11:15 amDEN-SAN
2h 35mnonstop
6:30 pm - 9:50 pmSAN-DEN
2h 20mnonstop
$198Southwest
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Thu, Jan 30 - Thu, Jan 30
9:40 am - 11:15 amDEN-SAN
2h 35mnonstop
4:40 pm - 8:00 pmSAN-DEN
2h 20mnonstop
$238Southwest
Find Deal
Tue, Jan 7 - Tue, Jan 7
6:00 am - 7:22 amDEN-SAN
2h 22mnonstop
2:34 pm - 6:01 pmSAN-DEN
2h 27mnonstop
$307United Airlines
Find Deal
Thu, Jun 5 - Mon, Jun 9
9:00 pm - 10:30 pmDEN-SAN
2h 30mnonstop
4:11 pm - 7:39 pmSAN-DEN
2h 28mnonstop
$441United Airlines
Find Deal
Wed, Jan 8 - Sat, Jan 11

Frontier flights from Denver to San Diego

Our best Frontier deals on Denver to San Diego flight tickets
Frontier
Jan 7
DEN10:15 pmDenver Intl
2h 34m
SAN11:49 pmSan Diego
Jan 11
SAN12:01 pmSan Diego
2h 27m
DEN3:28 pmDenver Intl
Frontier
Jan 15
DEN10:15 pmDenver Intl
2h 34m
SAN11:49 pmSan Diego
Jan 18
SAN3:58 pmSan Diego
2h 28m
DEN7:26 pmDenver Intl
Frontier
Jan 8
DEN10:15 pmDenver Intl
2h 34m
SAN11:49 pmSan Diego
Jan 14
SAN2:32 pmSan Diego
2h 26m
DEN5:58 pmDenver Intl

United Airlines flights from Denver to San Diego

Our best United Airlines deals on Denver to San Diego flight tickets
United Airlines
Feb 7
DEN7:40 pmDenver Intl
2h 30m
SAN9:10 pmSan Diego
Feb 10
SAN7:00 amSan Diego
2h 28m
DEN10:28 amDenver Intl
United Airlines
Jan 18
DEN8:00 amDenver Intl
2h 30m
SAN9:30 amSan Diego
Jan 19
SAN7:00 amSan Diego
2h 28m
DEN10:28 amDenver Intl
United Airlines
Jan 17
DEN9:00 pmDenver Intl
2h 30m
SAN10:30 pmSan Diego
Jan 20
SAN6:30 pmSan Diego
2h 28m
DEN9:58 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 typical price of a round-trip flight between Denver and San Diego?

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 $138.

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?

Most flyers found that booking tickets 56 days in advance of their planned departure date is the best time to get cheap flights to San Diego. During this timeframe, flight prices are around $172. However, in the past 72 hours, people saw flights from Denver for as low as $104.

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.

Can stopping save me money on Denver to San Diego flights?

You could potentially save up to 82% on your flight if you consider stops on a Denver to San Diego flight.

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

As of December 2024, prices for Denver to San Diego flights are approximately 80% 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

$28

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 $28. The best round-trip flight deal from Denver to San Diego found on momondo in the last 72 hours is $57.
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
6.1
3,475 reviews
Search Frontier flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
9,043 reviews
Search United Airlines flights
SouthwestPriceFrom $158Free CancellationRating
8.1
4,821 reviews
Search Southwest flights
DeltaPriceFrom $196Free CancellationRating
8.0
8,600 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 11 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 $266. Our users have rated Southwest at 8.1/10.

  • United Airlines Flights From Denver to San Diego

    Across 9,048 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Denver to San Diego about 19 times each week, with ticket deals ranging from $150 to $303. Price data is based on momondo searches in the last 72 hours.


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.


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