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

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The best prices from San Diego to Denver Intl are usually found in August or January, booked 16 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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

All the information you need to plan the best SAN to DEN flight in 2022: compare San Diego to Denver flight prices with the expected peak season, weather and rainfall in Denver.
SAN - DEN
Price
$136 - $247
DEN
Temperature
30.2 - 73.4 °F
DEN
Precipitation
0.5 - 2.3 inches

Popular in

December

High demand for flights, 30% potential price rise

Cheapest in

August

Best time to find cheap flights, 21% potential price drop

Round-trip from

$136

From San Diego to Denver Intl

One-way from

$64

One-way flight from San Diego to Denver Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from San Diego to Denver?

To save up to 8% on this flight, we recommend booking at least 16 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Diego to Denver from $158 1-2 weeks out and tickets from $177 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of August. Prices to Denver from San Diego average $172. You can even find prices in August for less than $172, as users have found deals to Denver from as low as $96. The month of December appears to be one of the more expensive times to travel to Denver from San Diego. Flying in the targeted month can save you up to 43%.

When is the cheapest time to fly from San Diego to Denver (SAN - DEN)?

It’s typically best to fly out from San Diego to Denver at noon. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Users have found that flying from San Diego to Denver on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Cheap flights from San Diego to Denver in January, February 2022

The best prices found for SAN to DEN flights for January, February
9 Feb - 14 Feb
$80pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
11 Feb - 15 Feb
$81pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
17 Feb - 22 Feb
$88pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

San Diego to Denver 2022 flight deals

Cheap flights to Denver from San Diego found for this year
9 Feb - 14 Feb
$80pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
11 Feb - 15 Feb
$81pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
4 Mar - 6 Mar
$82pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

Non-stop flights to Denver from San Diego

Save time with San Diego to Denver direct flight deals
9 Feb - 14 Feb
$80pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
11 Feb - 15 Feb
$81pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
4 Mar - 6 Mar
$82pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

Last minute flights from San Diego to Denver

Late deals on round-trip flights to Denver from San Diego, departing today and this week
5 Feb - 19 Feb
$90pp
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
5 Feb - 7 Feb
$92pp
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
2 Feb - 7 Feb
$98pp
SAN
San Diego
Frontier
 
1 STOP
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

One-way flights to Denver Intl from San Diego

The cheapest one-way flights from San Diego to Denver
2:45 am - 6:12 am
United Airlines
Nonstop
2h 27m
SAN - DEN
United Airlines
$64
United
2:33 pm - 7:31 pm
American Airlines
1 Stop
3h 58m
SAN - DEN
American Airlines
3:55 pm - 4:55 am
Multiple Airlines
1 Stop
12h 00m
SAN - DEN
Multiple Airlines
$76
Kiwi.com

Related info for your journey

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

Flight FAQs

From San Diego to Denver

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

You will need to book a flight from San Diego to Denver Intl if you want to fly from San Diego to Denver. At least 7 different airlines have flights from San Diego (SAN) to Denver Intl (DEN) on a regular basis. There are 17 flights to Denver from the San Diego airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SAN to DEN to be around 2h 13m.

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

Some of the carriers operating flights from San Diego to Denver Intl that may be offering flexible cancellation policies are Frontier, United Airlines, and Spirit Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from San Diego to Denver for under $100 on Cheapflights?

Yes, there are multiple flights from San Diego to Denver for under $100. The cheapest flight booked recently is on Frontier for just $80, but on average you can expect to pay $92.

Are there nonstop flights from San Diego to Denver for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from San Diego to Denver under $100. A good price for a nonstop flight from San Diego to Denver is less than $94.

Are there last-minute flights available from San Diego to Denver for under $100?

There are currently 20+ open flights from San Diego to Denver within the next 7 days for less than $100.

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

Nonstop flights can be found on the following days: Monday, Saturday.

How popular is this San Diego to Denver flight route?

This flight path from San Diego to Denver Intl was viewed by 228 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 San Diego to Denver on average per day?

On average 4 flights depart from San Diego to Denver per day.
Morning (6am - Noon) - 75% of flight departures
Afternoon (Noon - 6pm) - 25% of flight departures

How long is the flight from San Diego to Denver?

Frontier and Spirit Airlines can get you from San Diego to Denver in just under 2h 22m. Your travel time can differ by up to 5h 09m. There are 856 mi between San Diego and Denver. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Frontier, at $80, was found to be the cheapest airline from San Diego to Denver. An alternate airline flying to your destination would be Spirit Airlines. Frontier is priced at 53% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as $37 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $52 and United Airlines from $64 one-way.

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

The most popular airlines flying from San Diego to Denver are Major Airline, American Airlines and Delta. Something to consider prior to booking your flight.

What are the cheapest flights from San Diego to Denver?

While on average a flight from San Diego to Denver is generally $389, our data shows the cheapest flight currently is $47. When looking at the most popular route, (San Diego - Denver Intl), you can expect to pay $93 for that flight.

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

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 San Diego to Denver on time: SkyWest Airlines (100%), United Airlines (88%), Air Canada (84%).

COVID Restrictions

View COVID Travel Restrictions for Denver, CO

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

Information is based on travel restrictions for travel to Denver Intl within the United States

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

COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Denver Intl.

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

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

Returning to San Diego from Denver Intl

COVID-19 testing requirements
Visitors from Denver Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Diego.

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

Hide COVID Travel Restrictions for Denver, CO

Alternative routes for San Diego to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Denver

Things to know before you go - useful duration and weather info for your trip from San Diego to Denver.
Flight duration from SAN to DEN
2h 28m
Average temperature for January in Denver
46.4 °F
Avg rainfall for January in Denver
0.5 ″

Airports servicing San Diego

Airports servicing Denver

Top 6 airlines flying from San Diego to Denver Intl

The chart below displays the airlines Cheapflights users traveling from San Diego to Denver 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
American Airlines
$57 $177 No cancel fee 71%
Spirit Airlines
$63 $159 No cancel fee 65%
Frontier
$77 $174 No cancel fee 62%
Delta
$82 $161 No cancel fee N/A
United Airlines
$88 $240 No cancel fee 69%
Southwest
$130 $340 No cancel fee 63%

Hourly flight availability from San Diego to Denver

See what time of day planes typically take off from San Diego towards Denver.
Morning 6 AM to noon 60% of SAN to DEN departures
Afternoon Noon to 6 PM 20% of SAN to DEN departures
Early morning Midnight to 6 AM 15% of SAN to DEN departures
Evening 6 PM to midnight 5% of SAN to DEN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Diego to Denver
See how many times per day planes take to the skies headed from San Diego to Denver.
Sunday
17 daily flights
Monday
21 daily flights
Tuesday
16 daily flights
Wednesday
19 daily flights
Thursday
21 daily flights
Friday
19 daily flights
Saturday
7 daily flights
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