Cheap flights from Colorado (CO) to San Diego (SAN)

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How to find the cheapest flight from
Colorado to San Diego (SAN)

All the information you need to plan the best null to SAN flight in 2022: compare Colorado to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
How far in advance should I book a flight from Colorado to San Diego?

To save up to 7% on this flight, we recommend booking at least 14 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 $164 1-2 weeks out and tickets from $186 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 December. Prices are generally better when you fly from Colorado to San Diego in August, with the cheapest ticket starting at $96.

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 flights from Colorado to San Diego in May, June 2022

The best prices found for Colorado to SAN flights for May, June
7 Jun - 8 Jun
$115pp
DEN
Denver Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl
1 Jun - 2 Jun
$120pp
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl
6 Jun - 7 Jun
$123pp
DEN
Denver Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl

Colorado to San Diego 2022 flight deals

Cheap flights to San Diego from Colorado found for this year
20 Aug - 27 Aug
$96pp
DEN
Denver Intl
Delta
 
1 STOP
SAN
San Diego
SAN
San Diego
Delta
 
1 STOP
DEN
Denver Intl
7 Jun - 8 Jun
$115pp
DEN
Denver Intl
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl
1 Jun - 2 Jun
$120pp
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl

Non-stop flights to San Diego from Colorado

Save time with Colorado to San Diego direct flight deals
29 May - 1 Jun
$180pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
29 May - 1 Jun
$185pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
29 May - 30 May
$188pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Last minute flights from Colorado to San Diego

Late deals on round-trip flights to San Diego from Colorado, departing today and this week
28 May - 1 Jun
$127pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl
28 May - 2 Jun
$129pp
DEN
Denver Intl
Multiple Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl
28 May - 2 Jun
$131pp
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
DEN
Denver Intl

One-way flights to San Diego from Colorado

The cheapest one-way flights from Colorado to San Diego
10:30 am - 2:14 pm
Delta
1 Stop
4h 44m
DEN - SAN
Delta
$48
Delta
3:40 pm - 6:58 pm
Spirit Airlines
1 Stop
4h 18m
DEN - SAN
Spirit Airlines
$79
FlightNetwork
4:37 pm - 4:23 am
Multiple Airlines
1 Stop
12h 46m
COS - SAN
Multiple Airlines
$91
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Colorado</span> to <span class="emphasized">San Diego</span> flights.

Flight FAQs

From Colorado to San Diego

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.

Which airlines flying from Colorado to San Diego have flexible cancellations due to COVID-19?

Some of our airline partners flying from Colorado to San Diego have new flexible policies in place due to COVID-19. Frontier, United Airlines, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Frontier with this kind of flexibility.

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 Delta for just $96, but on average you can expect to pay $137.

Are there nonstop flights from Colorado to San Diego for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Colorado to San Diego under $200. A good price for a nonstop flight from Colorado to San Diego is less than $208.

Are there last-minute flights available from Colorado to San Diego for under $200?

There are currently 20+ open flights from Colorado to San Diego within the next 7 days for less than $200.

What days are nonstop flights available from Colorado to San Diego?

You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

How popular is this Colorado to San Diego flight route?

This flight path from Colorado to San Diego was viewed by 163 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, 9 flights depart from Colorado to San Diego on average.
Morning (6am - Noon) - 78% of flight departures
Evening (6pm - Midnight) - 22% of flight departures

How long is the flight from Colorado to San Diego?

Delta, Frontier, and Spirit Airlines can get you from Colorado to San Diego in just under 4h 44m. Your travel time can differ by up to 5h 11m. The distance from Colorado to San Diego is about 856 mi. This flight may include one or multiple stops.

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

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $48. Frontier flights start at $54 while deals on Spirit Airlines start at $60 one-way.

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, Alaska Airlines or Delta.

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 $442, our data indicates the cheapest price to be $59. The most popular route (Denver Intl - San Diego), is priced around $96.

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: Air Canada (85%), Lufthansa (82%), Copa Airlines (79%).

What are the most popular routes from Colorado to San Diego?

While some choose either Colorado Springs - San Diego or Grand Junction Regnl - San Diego, Denver Intl - San Diego is the most popular route from Colorado to San Diego.

COVID Restrictions

View COVID Travel Restrictions for San Diego, CA

Do I need a COVID test to fly to San Diego from Colorado?

Information is based on travel restrictions for travel to San Diego within the United States

Most visitors from Colorado need to provide a negative COVID-19 test result and/or quarantine to enter San Diego.

COVID-19 testing requirements
Visitors from Colorado must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to San Diego.

Quarantine requirements
Visitors from Colorado are not required to quarantine after entering San Diego.

Do I need a test to fly back to Colorado from San Diego?

Returning to Colorado from San Diego

COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Colorado.

Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Colorado.

Hide COVID Travel Restrictions for San Diego, CA

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.

Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Colorado to San Diego.
Average temperature for May in San Diego
71.6 °F
Avg rainfall for May in San Diego
0.2 ″

Airports servicing

Colorado Springs (COS)
Denver (DEN)
Durango (DRO)
Vail Eagle County (EGE)
Loveland Northern Colorado (FNL)

Airports servicing San Diego

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.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$11 $22 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Spirit Airlines
$68 $134 No cancel fee 65%
Frontier
$75 $198 No cancel fee 62%
American Airlines
$75 $364 No cancel fee 71%
Delta
$87 $267 No cancel fee N/A
United Airlines
$98 $374 No cancel fee 69%
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