How popular is this Denver to San Diego flight route?

Within the past month, 140 users have taken a look at flights from Denver Intl to San Diego.

What are the cheapest airlines flying from Denver to San Diego round-trip?

According to our current data, Frontier ($116), Southwest ($203), and Alaska Airlines ($216) offers the cheapest pricing from Denver to San Diego. Frontier is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $68. Hawaiian Airlines flights start at $98 while deals on United Airlines start at $104 one-way.

What are the cheapest flights from Denver to San Diego?

Looking for the cheapest flight from Denver to San Diego? While on average our users pay $268, our data indicates the cheapest price to be $29. The most popular route (Denver Intl - San Diego), is priced around $156.

What are the most reliable airlines from Denver to San Diego?

The top 3 most reliable airlines when flying from Denver to San Diego are United Airlines (83%), Air Canada (81%) and Frontier (80%).

What are the most popular airlines that fly from Denver to San Diego?

Before booking your flight from Denver to San Diego check out the most popular airlines for this route: American Airlines, Delta or Frontier.

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

Departing on a Friday is a good option for securing a great price. You can expect to save up to 61% when planning your travel around this day of the week.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 57 days in advance, which can save you up to 100% on flights from Denver to San Diego compared to booking the week you need them. Waiting 57 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $158. For sooner than that we have options available in the next 3 days from $298.

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

May is one of the best times of the year to fly to San Diego from Denver. Prices for May average $175 per person but you can even find prices for as low as $49. The most expensive prices can be found in the month of March. Opting for a May flight can save you 32% on your journey compared to booking in March

Most accurate provider : When it comes to deals on Denver-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-San Diego flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Denver-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airports do I use to fly from Denver to San Diego?

San Diego is the airport most travelers will use when flying to San Diego from Denver Intl. Booking flights from Denver Intl (DEN) to San Diego (SAN) should be relatively easy as there are 14 daily flights to San Diego from 5 different airlines. 2h 17m is how long a flight from Denver to San Diego will take if you book a nonstop flight.

Can I find deals for flights from Denver to San Diego that include hotel bookings?

Yes. In addition to deals on Denver to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Denver to San Diego?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to San Diego.

Can I find deals for business class flights from Denver to San Diego?

Yes. Cheapflights offers flight deals from Denver to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$59+ Flights from Denver to San Diego

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Find cheap flights from Denver to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to San Diego are usually found in May or April, booked 61 days in advance, depart on a Saturday or Tuesday and return on a Friday

Cheap flight deals from Denver to San Diego

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$116 (Cheapflightsfares)
One-way from	$68 (Kiwi.com)
Popular in	March
Cheapest in	May
Average price	$233
Good round-trip deal	$125 or less
Good one-way deal	$80 or less

Provider with most accurate pricing for Denver Intl-San Diego flight deals.

Search Deals

Provider most trusted by Cheapflights users for Denver Intl-San Diego flights.

Search Deals

From Denver Intl to San Diego

Search Deals

One-way flight from Denver Intl to San Diego

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Denver Intl to San Diego.

Search Deals

Price to beat on a one-way flight from Denver Intl to San Diego.

Search Deals

Find flight deals from Denver to San Diego

Cheapest flights from Denver to San Diego
Explore the most affordable flight options available from Denver to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Tue 4/2910:46 amDEN - SAN

Nonstop2h 24mFrontier

Wed 4/301:10 pmSAN - DEN

Nonstop2h 36mFrontier

Deal found 3/27

$116

Thu 6/58:20 pmDEN - SAN

Nonstop2h 20mSouthwest

Tue 6/106:00 pmSAN - DEN

1 stop3h 45mSouthwest

Deal found 3/27

$203

Fri 5/167:59 pmDEN - SAN

1 stop4h 59mMultiple Airlines

Tue 5/206:15 amSAN - DEN

2 stops10h 54mMultiple Airlines

Deal found 3/26

$208

Sat 5/246:25 pmDEN - SAN

1 stop5h 05mDelta

Thu 5/296:15 amSAN - DEN

1 stop4h 49mDelta

Deal found 3/27

$217

Tue 4/297:00 amDEN - SAN

1 stop7h 00mAlaska Airlines

Wed 4/308:25 amSAN - DEN

2 stops11h 50mAlaska Airlines

Deal found 3/27

$235

Fri 5/235:40 pmDEN - SAN

1 stop7h 01mUnited Airlines

Tue 5/276:15 amSAN - DEN

1 stop7h 04mUnited Airlines

Deal found 3/27

$302

Best flights from Denver to San Diego
Discover carefully curated flight deals from Denver to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Tue 4/2910:46 amDEN - SAN

Nonstop2h 24mFrontier

Wed 4/301:10 pmSAN - DEN

Nonstop2h 36mFrontier

Deal found 3/27

$116

Sat 5/243:48 pmDEN - SAN

Nonstop2h 32mMultiple Airlines

Wed 5/281:39 pmSAN - DEN

1 stop9h 26mMultiple Airlines

Deal found 3/27

$193

Sat 5/248:50 pmDEN - SAN

Nonstop2h 25mSouthwest

Thu 5/291:00 pmSAN - DEN

1 stop4h 35mSouthwest

Deal found 3/27

$203

Wed 5/287:05 pmDEN - SAN

1 stop5h 54mAlaska Airlines

Tue 6/31:39 pmSAN - DEN

1 stop9h 26mAlaska Airlines

Deal found 3/27

$216

Sat 5/246:25 pmDEN - SAN

1 stop5h 05mDelta

Thu 5/296:15 amSAN - DEN

1 stop4h 49mDelta

Deal found 3/27

$217

Thu 7/246:47 pmDEN - SAN

1 stop4h 08mAmerican Airlines

Mon 7/289:50 amSAN - DEN

1 stop7h 15mAmerican Airlines

Deal found 3/26

$297

Sun 9/78:00 amDEN - SAN

Nonstop2h 17mUnited Airlines

Wed 9/174:10 pmSAN - DEN

Nonstop2h 23mUnited Airlines

Deal found 3/27

$307

Last-minute flights from Denver to San Diego
Discover last-minute flight deals from Denver to San Diego. Data last updated March 28, 2025 and is based on user searches.

Tue 4/111:00 amDEN - SAN

1 stop6h 21mFrontier

Fri 4/1812:19 pmSAN - DEN

Nonstop2h 30mFrontier

Deal found 3/27

$142

Thu 4/36:55 amDEN - SAN

1 stop4h 16mDelta

Fri 4/186:15 amSAN - DEN

1 stop5h 41mDelta

Deal found 3/27

$297

Thu 4/39:05 pmDEN - SAN

Nonstop2h 28mUnited Airlines

Fri 4/188:45 amSAN - DEN

Nonstop2h 26mUnited Airlines

Deal found 3/27

$342

Thu 4/312:44 pmDEN - SAN

1 stop9h 02mAlaska Airlines

Wed 4/168:15 amSAN - DEN

2 stops9h 46mAlaska Airlines

Deal found 3/27

$395

Sat 4/53:16 pmDEN - SAN

1 stop5h 00mMultiple Airlines

Mon 4/79:21 pmSAN - DEN

2 stops15h 32mMultiple Airlines

Deal found 3/27

$338

Tue 4/1511:10 amDEN - SAN

2 stops8h 55mSouthwest

Mon 4/215:35 pmSAN - DEN

1 stop4h 15mSouthwest

Deal found 3/27

$278

Sun 4/271:24 pmDEN - SAN

1 stop6h 04mMultiple Airlines

Wed 4/308:25 amSAN - DEN

2 stops11h 50mMultiple Airlines

Deal found 3/26

$213

Tue 4/2910:46 amDEN - SAN

Nonstop2h 24mFrontier

Wed 4/301:10 pmSAN - DEN

Nonstop2h 36mFrontier

Deal found 3/27

$116

Tue 4/297:00 amDEN - SAN

1 stop7h 00mAlaska Airlines

Wed 4/308:25 amSAN - DEN

2 stops11h 50mAlaska Airlines

Deal found 3/27

$235

One-way flights from Denver to San Diego
Search for one-way flight options from Denver to San Diego. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Sat 4/2610:46 amDEN - SAN

Nonstop2h 24mFrontier

Deal found 3/26

$68

Sat 4/266:37 pmDEN - SAN

1 stop6h 22mHawaiian Airlines

Deal found 3/26

$98

Wed 4/29:57 amDEN - SAN

1 stop14h 54mMultiple Airlines

Deal found 3/26

$100

Tue 6/34:00 pmDEN - SAN

1 stop5h 36mUnited Airlines

Deal found 3/26

$104

Fri 4/256:37 pmDEN - SAN

1 stop6h 22mAlaska Airlines

Deal found 3/26

$108

Tue 5/273:35 pmDEN - SAN

1 stop4h 10mDelta

Deal found 3/26

$109

Tue 4/1511:10 amDEN - SAN

2 stops8h 55mSouthwest

Deal found 3/27

$139

Sun 4/611:16 amDEN - SAN

1 stop5h 22mAmerican Airlines

Deal found 3/27

$284

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Tue 4/29

10:46 am-12:10 pm

Nonstop2h 24m

San Diego

Wed 4/30

1:10 pm-4:46 pm

Nonstop2h 36m

$116

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Thu 6/5

8:20 pm-9:40 pm

Nonstop2h 20m

San Diego

Tue 6/10

6:00 pm-10:45 pm

1 stop3h 45m

$203

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Fri 5/16

7:59 pm-11:58 pm

1 stop4h 59m

San Diego

Tue 5/20

6:15 am-6:09 pm

2 stops10h 54m

$208

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Sat 5/24

6:25 pm-10:30 pm

1 stop5h 05m

San Diego

Thu 5/29

6:15 am-12:04 pm

1 stop4h 49m

$217

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Tue 4/29

7:00 am-1:00 pm

1 stop7h 00m

San Diego

Wed 4/30

8:25 am-9:15 pm

2 stops11h 50m

$235

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Fri 5/23

5:40 pm-11:41 pm

1 stop7h 01m

San Diego

Tue 5/27

6:15 am-2:19 pm

1 stop7h 04m

$302

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Thu 6/19

6:47 pm-9:50 pm

1 stop4h 03m

San Diego

Sun 6/22

12:49 pm-6:07 pm

1 stop4h 18m

$332

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 5/21

9:58 pm-11:26 pm

Nonstop2h 28m

$59

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Tue 6/3

4:00 pm-8:36 pm

1 stop5h 36m

$104

DenverSan Diego

DEN - SAN

DENSAN

Denver Intl

Wed 5/28

7:05 pm-11:59 pm

1 stop5h 54m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 14 results

Compare providers for flights from Denver to San Diego

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to San Diego in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*2 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*3 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Denver-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-San Diego flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Denver-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Denver to San Diego flights

Cheapflights partnered with top experts to bring you the best recommendations for your Denver to San Diego trip

Airports

DEN

For a quick security experience at DEN, reserve a time online for general screening. It's available for all travelers, not just TSA PreCheck users.

SAN

Use the free San Diego Flyer shuttle for easy transport between SAN and Old Town Transit Center. It's a convenient and cost-effective option.

Our travel experts

Blane Bachelor

Expert on SAN

Emily Zemler

Expert on DEN

Best time to book a flight from Denver to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Denver with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to San Diego

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

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to San Diego?

Currently, August is the cheapest month in which you can book a flight from Denver to San Diego (average of $286). Flying from Denver to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to SAN?

When flying from Denver to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 47% versus a flight at noon.

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

Travelers seeking maximum savings on their Denver to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Denver to San Diego

The most flights from DEN to SAN are scheduled on a Thursday (25 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in San Diego by month

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

To help decide which airline to fly from Denver to San Diego, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest

8.1

Very good

4,273 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines

8.0

Very good

9,798 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta

8.0

Very good

7,896 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Hawaiian Airlines

7.9

Good

2,336 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines

7.4

Good

8,603 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

What airports do I use to fly from Denver to San Diego?
San Diego is the airport most travelers will use when flying to San Diego from Denver Intl. Booking flights from Denver Intl (DEN) to San Diego (SAN) should be relatively easy as there are 14 daily flights to San Diego from 5 different airlines. 2h 17m is how long a flight from Denver to San Diego will take if you book a nonstop flight.
How popular is this Denver to San Diego flight route?
Within the past month, 140 users have taken a look at flights from Denver Intl to San Diego.
What are the cheapest airlines flying from Denver to San Diego round-trip?
According to our current data, Frontier ($116), Southwest ($203), and Alaska Airlines ($216) offers the cheapest pricing from Denver to San Diego. Frontier is 33% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Denver to San Diego one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $68. Hawaiian Airlines flights start at $98 while deals on United Airlines start at $104 one-way.
What are the most reliable airlines from Denver to San Diego?
The top 3 most reliable airlines when flying from Denver to San Diego are United Airlines (83%), Air Canada (81%) and Frontier (80%).
What are the cheapest flights from Denver to San Diego?
Looking for the cheapest flight from Denver to San Diego? While on average our users pay $268, our data indicates the cheapest price to be $29. The most popular route (Denver Intl - San Diego), is priced around $156.
Can I find deals for flights from Denver to San Diego that include hotel bookings?
Yes. In addition to deals on Denver to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Denver to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to San Diego.
Can I find deals for business class flights from Denver to San Diego?
Yes. Cheapflights offers flight deals from Denver to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Denver to San Diego?
Currently, August is the cheapest month in which you can book a flight from Denver to San Diego (average of $286). Flying from Denver to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Other flights to San Diego

Top 5 airlines flying from Denver to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$57	Average$139	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$156	Average$304	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$173	Average$275	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$196	Average$296	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$197	Average$281	FlexibilityNo cancel fee	On-time71%

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$59+ Cheap flights from Denver to San Diego (DEN - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to San Diego with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Denver Intl to San Diego are usually found in May or April, booked 61 days in advance, depart on a Saturday or Tuesday and return on a Friday

Cheap flight deals from Denver to San Diego

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Denver to San Diego

Cheapest flights from Denver to San DiegoExplore the most affordable flight options available from Denver to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from Denver to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to San Diego that are best for you.

Compare providers for flights from Denver to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to San Diego in March.

The best insider tips for Denver to San Diego flights

Cheapflights partnered with top experts to bring you the best recommendations for your Denver to San Diego trip

Airports

DEN

SAN

Our travel experts

Best time to book a flight from Denver to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Denver with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Denver to San Diego

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to San Diego. Price data was last updated on March 21, 2025.

What is the cheapest month to book a flight from Denver to San Diego?

What is the cheapest time of day to fly from DEN to SAN?

Find hourly flight availability from Denver to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to San Diego. Price data was last updated on March 23, 2025.

Weekly flight availability from Denver to San Diego

Explore weekly flight availability from Denver to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2025.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

Reviews of airlines servicing San Diego

Related info for your journey

Find useful and relevant information for your journey from Denver to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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How popular is this Denver to San Diego flight route?

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Can I find deals for flights from Denver to San Diego that include hotel bookings?

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Alternative routes for Denver to San Diego

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Top 5 airlines flying from Denver to San Diego

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Cheapest flights from Denver to San Diego
Explore the most affordable flight options available from Denver to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.