Cheap flights from Colorado to San Diego (SAN) from $31
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
How far in advance should I book a flight from Colorado to San Diego?
To save up to 23% on this flight, we recommend booking at least 35 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Colorado to San Diego from $228 1-2 weeks out and tickets from $275 for flights departing within the next 72 hours.
What is the cheapest month to fly from Colorado to San Diego?
Flights from Colorado to San Diego lean towards being more expensive in June. Prices are generally better when you fly from Colorado to San Diego in January, with the cheapest ticket starting at $74.
When is the cheapest time to fly from Colorado to San Diego (CO - SAN)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to San Diego as you normally would.
Cheap Frontier flights from Colorado to San Diego
Find some of the cheapest Frontier flights traveling from Colorado to San Diego. Be sure to come back soon if the deals available don't appeal to you at this time.
Cheap United Airlines flights from Colorado to San Diego
Some of the best deals we've found on United Airlines flights traveling from Colorado to San Diego. Ensure the flight price, dates, time, and airline match your criteria before you book.
Cheap Colorado to San Diego flights in September & October 2023
The best prices found for Colorado to SAN flights for September, October
These are some of the most attractive deals on flights from Colorado to San Diego in 2023. Check back soon for alternative fares.
Colorado to San Diego 2023 flight deals
Cheap flights to San Diego from Colorado found for this year
These are some of the most attractive deals on flights from Colorado to San Diego in 2023. Check back soon for alternative fares.
Non-stop flights to San Diego from Colorado
Save time with Colorado to San Diego direct flight deals
To help reduce your travel time, choose from one of these non-stop flights from Colorado to San Diego. If you're looking for other options for flights from Colorado to San Diego, make sure to update the search form at the top of page.
Colorado to San Diego flights leaving soon
Late deals on return flights to San Diego from Colorado, departing today and this week
Consider one of these great deals we found on last-minute flights from Colorado to San Diego. Tip: verify your flight details before completing your reservation.
One-way flights to San Diego from Colorado
The cheapest one-way flights from Colorado to San Diego
Users traveling one-way from Colorado to San Diego can select one of these great deals. Users in need of a round-trip flight from Colorado to San Diego instead should update the search form at the top of page.
Find flights from Colorado to San Diego within your budget
Use the slider to find flights from Colorado to San Diego that fit your budget.
Fly from
Fly to
Budget
$48 - $68
Route
Depart
Return
Price
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
jue. 11/23
Nonstop2h 27m
San Diego
mar. 12/5
Nonstop2h 34m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
mar. 10/31
Nonstop2h 27m
San Diego
mié. 11/1
Nonstop2h 34m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
lun. 11/6
Nonstop2h 32m
San Diego
mar. 11/7
Nonstop2h 37m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
mié. 11/1
Nonstop2h 32m
San Diego
mié. 11/8
Nonstop2h 37m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
mar. 10/31
Nonstop2h 27m
San Diego
jue. 11/2
Nonstop2h 25m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
sáb. 11/4
Nonstop2h 27m
San Diego
mar. 11/7
1 stop6h 35m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
sáb. 12/9
1 stop3h 44m
San Diego
mié. 12/13
Nonstop2h 25m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
mié. 12/6
Nonstop2h 33m
San Diego
sáb. 12/9
1 stop7h 44m
Denver IntlSan Diego
DEN - SAN
DENSAN
Denver Intl
mar. 10/24
1 stop4h 13m
San Diego
sáb. 10/28
1 stop6h 02m
Reviews of airlines servicing San Diego
See what other customers who have flown with Frontier, United Airlines and American Airlines from Colorado to San Diego have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
The line at TSA took me 2.5-3 hours to get through and I was behind on my flight time by 20 minutes. I was told some flights would be delayed and they would wait but when I arrived the flight had already taken off. I showed up on time and even then 2 and a half hours was not enough time to make my flight. I had to rent a car and drive from Vegas to San Diego at 8:00pm. I just hoped the airport would have notified their passengers a lot better.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
The line at TSA took me 2.5-3 hours to get through and I was behind on my flight time by 20 minutes. I was told some flights would be delayed and they would wait but when I arrived the flight had already taken off. I showed up on time and even then 2 and a half hours was not enough time to make my flight. I had to rent a car and drive from Vegas to San Diego at 8:00pm. I just hoped the airport would have notified their passengers a lot better.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
The line at TSA took me 2.5-3 hours to get through and I was behind on my flight time by 20 minutes. I was told some flights would be delayed and they would wait but when I arrived the flight had already taken off. I showed up on time and even then 2 and a half hours was not enough time to make my flight. I had to rent a car and drive from Vegas to San Diego at 8:00pm. I just hoped the airport would have notified their passengers a lot better.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
The line at TSA took me 2.5-3 hours to get through and I was behind on my flight time by 20 minutes. I was told some flights would be delayed and they would wait but when I arrived the flight had already taken off. I showed up on time and even then 2 and a half hours was not enough time to make my flight. I had to rent a car and drive from Vegas to San Diego at 8:00pm. I just hoped the airport would have notified their passengers a lot better.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
The line at TSA took me 2.5-3 hours to get through and I was behind on my flight time by 20 minutes. I was told some flights would be delayed and they would wait but when I arrived the flight had already taken off. I showed up on time and even then 2 and a half hours was not enough time to make my flight. I had to rent a car and drive from Vegas to San Diego at 8:00pm. I just hoped the airport would have notified their passengers a lot better.
Food
Overall
Comfort
Boarding
Crew
Entertainment
Reviews
The line at TSA took me 2.5-3 hours to get through and I was behind on my flight time by 20 minutes. I was told some flights would be delayed and they would wait but when I arrived the flight had already taken off. I showed up on time and even then 2 and a half hours was not enough time to make my flight. I had to rent a car and drive from Vegas to San Diego at 8:00pm. I just hoped the airport would have notified their passengers a lot better.
Related info for your journey
Useful info, stats and facts about Colorado to San Diego flights.
What airport do you fly into for flights to San Diego from Colorado?
San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Colorado to San Diego.
Can I find flights from Colorado to San Diego for under $100 on Cheapflights?
Yes, there are multiple flights from Colorado to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $48, but on average you can expect to pay $60.
Are there nonstop flights from Colorado to San Diego for under $100 on Cheapflights?
Cheapflights has at least 20 direct flights from Colorado to San Diego under $100. A good price for a nonstop flight from Colorado to San Diego is less than $59.
Are there last-minute flights available from Colorado to San Diego for under $100?
There are currently 20+ open flights from Colorado to San Diego within the next 7 days for less than $100.
What days are nonstop flights available from Colorado to San Diego?
You can find nonstop flights on the following days: Sunday, Monday, Thursday, Friday, Saturday.
How popular is this Colorado to San Diego flight route?
This flight path from Colorado to San Diego was viewed by 31 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How many flights depart from Colorado to San Diego on average per day?
Per day, 43 flights depart from Colorado to San Diego on average.
Early Morning (Midnight to 6am) - 14% of flight departures
Morning (6am - Noon) - 30% of flight departures
Afternoon (Noon - 6pm) - 37% of flight departures
Evening (6pm - Midnight) - 19% of flight departures
How long is the flight from Colorado to San Diego?
Frontier and Spirit Airlines can get you from Colorado to San Diego in just under 2h 27m. Your travel time can differ by up to 1h 46m. The distance from Colorado to San Diego is about 856 mi. This flight may include one or multiple stops.
What are the most popular routes from Colorado to San Diego?
While some choose either Colorado Springs - San Diego or Durango La Plata County - San Diego, Denver Intl - San Diego is the most popular route from Colorado to San Diego.
What are the most popular airlines that fly from Colorado to San Diego?
Before booking your flight from Colorado to San Diego check out the most popular airlines for this route: American Airlines, Delta or Frontier.
What are the most reliable airlines from Colorado to San Diego?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Colorado to San Diego on time: United Airlines (82%), Air Canada (76%), Frontier (68%).
What are the cheapest flights from Colorado to San Diego?
Looking for the cheapest flight from Colorado to San Diego? While on average our users pay $291, our data indicates the cheapest price to be $34. The most popular route (Denver Intl - San Diego), is priced around $51.
What does DEN to SAN mean?
DEN stands for Denver Intl Airport, while SAN stands for San Diego Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Colorado Springs Airport (COS), Aspen Pitkin County Airport (ASE), Grand Junction Regnl Airport (GJT), Vail Eagle County Airport (EGE), Durango La Plata County Airport (DRO) are some additional IATA codes for airports related to your trip.
Flights to San Diego from Colorado
Departure points for flights from Colorado to San Diego
Select to see more specific information for flights to San Diego from all departure points in Colorado
Top 6 airlines flying from Colorado to San Diego
The chart below displays the airlines Cheapflights users traveling from Colorado to San Diego choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from Colorado to San Diego
See what time of day planes typically take off from Colorado to San Diego
| 4%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 37%of flight departures | Morning6 am to noon |
| 37%of flight departures | AfternoonNoon to 6 pm |
| 22%of flight departures | Evening6 pm to midnight |
Fly with Cheapflights
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How does Cheapflights help users find flights from Colorado to San Diego?
Deals for Colorado to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Colorado to San Diego?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Colorado to San Diego for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Colorado to San Diego with no change fees?
Yes, we can. To see specific flights from Colorado to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Colorado to San Diego become cheaper?
Yes, Cheapflights has a feature called Price Alert, which essentially offers users the ability to be notified when flight prices change. Track prices for your flight to San Diego from Colorado today and book when you’re ready!