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)

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

To save on the cost of your flight from Colorado to San Diego, book at least 17 days before your planned departure. Booking around this time can save you about 27% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $73 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $98.

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

The best pricing can be found in the month of July. Prices to San Diego from Colorado average $80. You can even find prices in July for less than $80, as users have found deals to San Diego from as low as $44. The month of December appears to be one of the more expensive times to travel to San Diego from Colorado. Flying in the targeted month can save you up to 33%.

Cheap flights from Colorado to San Diego in February, March 2021

16 Mar - 18 Mar
$54pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
2 Mar - 7 Mar
$55pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
16 Mar - 18 Mar
$56pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Colorado to San Diego 2021 flight deals

7 Apr - 14 Apr
$47pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
16 Mar - 18 Mar
$54pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
2 Mar - 7 Mar
$55pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

Non-stop flights to San Diego from Colorado

7 Apr - 14 Apr
$47pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
16 Mar - 18 Mar
$54pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
16 Mar - 18 Mar
$56pp
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

7 Mar - 9 Mar
$56pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
6 Mar - 8 Mar
$57pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
6 Mar - 7 Mar
$67pp
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl

One-way flights to San Diego from Colorado

6:30 am - 7:55 am
United Airlines
Nonstop
2h 25m
DEN - SAN
United Airlines
$49
United
8:00 am - 3:23 pm
Spirit Airlines
1 Stop
8h 23m
DEN - SAN
Spirit Airlines
$54
FlyFar
7:45 am - 5:24 pm
Multiple Airlines
2 Stops
34h 39m
DEN - SAN
Multiple Airlines
$58
Gotogate

Related info for your journey

Flight FAQs

From Colorado to San Diego

Are flight prices decreasing from Colorado to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Colorado and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Colorado to San Diego to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Some of the new policies that have been implemented to accommodate travelers flying from Colorado to San Diego are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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. United Airlines, Frontier, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines 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 Frontier for just $47, but on average you can expect to pay $65.

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 $67.

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: Tuesday, Thursday.

How popular is this flight route?

This flight path from Colorado to San Diego was viewed by 283 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

When booking a flight from Colorado to San Diego, you may want to consider flying on Major Airline, American Airlines or Delta as they are the most popular for this route.

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

When deciding which route to take from Colorado to San Diego consider Denver Intl - San Diego, Colorado Springs - San Diego or Grand Junction Regnl - San Diego as they are the most popular.

What are the cheapest Flights from Colorado to San Diego?

While on average a flight from Colorado to San Diego is generally $405, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Denver Intl - San Diego), you can expect to pay $74 for that flight.

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

The top 3 most reliable airlines when flying from Colorado to San Diego are Copa Airlines (94%), Frontier (91%) and United Airlines (90%).

How long is the flight from Colorado to San Diego?

Airlines like Frontier, United Airlines, and American Airlines fly from Colorado to San Diego in about 2h 22m. The time it takes to get you to your destination can typically vary by up to 1h 09m. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest airline to fly from Colorado to San Diego round-trip?

Cheapflights users have booked flights from Colorado to San Diego round-trip from $47.

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

One-way options have recently been found by users for as low as $14 on Frontier. Other airlines that offer cheap prices include United Airlines from $49 and Spirit Airlines from $54 one-way.

Departure points for flights from Colorado to San Diego

Destination information for San Diego

Flight duration
2h 28m
Average temperature for March in San Diego
68.0 °F
Avg rainfall for March in San Diego
2.7 ″

Airports servicing

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

Airports servicing San Diego

Top 6 airlines flying from Colorado to San Diego

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$69 $166 No cancel fee 65%
Frontier
$77 $185 No cancel fee 62%
Delta
$82 $316 No cancel fee N/A
Southwest
$101 $324 No cancel fee 63%
American Airlines
$57 $339 No cancel fee 71%
United Airlines
$97 $377 No cancel fee 69%
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