$39+ 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 2/24. 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
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.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 Wednesday and return on a Thursday
Cheap flight deals from Denver to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 24, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $72 (Cheapflightsfares) |
One-way from | $39 (Frontier) |
Popular in | November |
Cheapest in | May |
Average price | $163 |
Good round-trip deal | $109 or less |
Good one-way deal | $118 or less |
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 January 24, 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 January 24, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Orbitz deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Denver to San Diego within your budget
Customize your flight search to find flights from Denver to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 24, 2025.
Fly from
Fly to
Route
Depart
Return
Price
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Fri 2/28
10:43 pm-12:20 am
Nonstop2h 37m
San Diego
Tue 3/4
6:25 am-9:56 am
Nonstop2h 31m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Wed 2/19
1:20 pm-7:18 pm
1 stop6h 58m
San Diego
Sun 2/23
6:15 am-2:31 pm
1 stop7h 16m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Sat 2/22
9:55 pm-11:25 pm
Nonstop2h 30m
San Diego
Mon 2/24
3:30 pm-6:50 pm
Nonstop2h 20m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Tue 2/25
7:46 am-12:03 pm
1 stop5h 17m
San Diego
Tue 2/25
4:30 pm-10:35 pm
1 stop5h 05m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Tue 2/18
2:50 pm-9:41 pm
1 stop7h 51m
San Diego
Tue 2/25
6:15 am-9:20 pm
2 stops14h 05m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Thu 2/20
5:40 am-12:29 pm
1 stop7h 49m
San Diego
Sun 2/23
5:45 pm-11:00 pm
1 stop4h 15m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Mon 2/24
10:43 pm-12:20 am
Nonstop2h 37m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Sun 3/16
6:15 am-7:45 am
Nonstop2h 30m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Thu 3/27
5:20 am-9:25 am
1 stop5h 05m
DenverSan Diego
DEN - SAN
DENSAN
Denver Intl
Thu 3/20
6:55 am-10:15 am
1 stop4h 20m
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
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.
Travel insights for flights from Denver to San Diego
Get recent, data-driven insights about flights from Denver to San Diego including ideal travel times, pricing trends, and more.
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 January 17, 2025.
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?
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 January 24, 2025.
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 46% versus a flight at noon.
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 January 21, 2025.
Travelers seeking maximum savings on their Denver to San Diego flight should consider departing on Tuesday evenings 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
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 January 24, 2025.
The most flights from DEN to SAN are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).
Rainfall in San Diego by month
Plan your trip to San Diego by taking into account the average rainfall totals 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
Plan your trip to San Diego by taking into account the average temperature totals 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
Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated January 24, 2025.
To help decide which airline to fly from Denver to San Diego, see what other customers have to say about Alaska Airlines, Frontier and Southwest. 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.
Overall
Comfort
Entertainment
Boarding
Food
Crew
Reviews
No issues. I needed pre boarding and I was able to get it without issue
Overall
Comfort
Entertainment
Boarding
Food
Crew
Reviews
No issues. I needed pre boarding and I was able to get it without issue
Overall
Comfort
Entertainment
Boarding
Food
Crew
Reviews
No issues. I needed pre boarding and I was able to get it without issue
Overall
Comfort
Entertainment
Boarding
Food
Crew
Reviews
No issues. I needed pre boarding and I was able to get it without issue
Overall
Comfort
Entertainment
Boarding
Food
Crew
Reviews
No issues. I needed pre boarding and I was able to get it without issue
Overall
Comfort
Entertainment
Boarding
Food
Crew
Reviews
No issues. I needed pre boarding and I was able to get it without issue
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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Alternative routes for Denver to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Denver to San Diego
Discover the top 5 airlines that operate flights from Denver to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 24, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$143 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$155 | Average$305 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$158 | Average$259 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$196 | Average$257 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$197 | Average$306 | FlexibilityNo cancel fee | On-time71% |