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

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The best prices from San Diego to Denver 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 2021: compare San Diego to Denver flight prices with the expected peak season, weather and rainfall in Denver.
SAN - DEN
Price
$136 - $247
DEN
Temperature
44.6 - 89.6 °F
DEN
Rainfall
0.5 - 2.7 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

One-way from

$49

One-way flight from San Diego to Denver

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from San Diego to Denver?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

To save on the cost of your flight from San Diego to Denver, book at least 14 days before your planned departure. Booking around this time can save you about 12% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $88 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $106.

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

Our data shows that August tends to be the cheapest month to fly to Denver from San Diego. Users have commonly found prices around $98 for the month, but tickets can be as low as $36. Due to multiple factors, prepare for potentially higher prices in December.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 34% on flights from San Diego to Denver by exploring options for tickets at noon.

Cheap flights from San Diego to Denver in May, June 2021

The best prices found for SAN to DEN flights for May, June
19 May - 25 May
$73pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
19 May - 25 May
$78pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego
19 May - 25 May
$79pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego

San Diego to Denver 2021 flight deals

Cheap flights to Denver from San Diego found for this year
19 May - 25 May
$73pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
19 May - 25 May
$78pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego
19 May - 25 May
$79pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego

Non-stop flights to Denver from San Diego

Save time with San Diego to Denver direct flight deals
19 May - 25 May
$78pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego
19 May - 25 May
$79pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego
17 May - 18 May
$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
19 May - 25 May
$73pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
19 May - 25 May
$78pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego
19 May - 25 May
$79pp
SAN
San Diego
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
SAN
San Diego

One-way flights to Denver from San Diego

The cheapest one-way flights from San Diego to Denver
3:00 am - 6:08 am
United Airlines
Nonstop
2h 08m
SAN - DEN
United Airlines
$49
United
10:51 am - 6:04 pm
American Airlines
1 Stop
6h 13m
SAN - DEN
American Airlines
9:58 am - 3:41 pm
Spirit Airlines
1 Stop
4h 43m
SAN - DEN
Spirit Airlines
$81
FlyFar

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

Are flight prices decreasing from San Diego to Denver 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 San Diego and Denver 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.

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.

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 14 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 08m.

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 Multiple Airlines for just $73, 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 $100.

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?

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

How popular is this 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?

Per day, 10 flights depart from San Diego to Denver Intl on average.
Morning (6am - Noon) - 60% of flight departures
Afternoon (Noon - 6pm) - 40% of flight departures

Does it rain more in San Diego or Denver?

Expected rainfall in San Diego is more than in Denver. You can expect this to be the case over the next 3 days.

Is San Diego weather warmer or cooler than Denver?

With an average temperature of 90 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in Denver are hotter than in San Diego.

How long is the flight from San Diego to Denver?

There are many flights that can get you from San Diego to Denver in 2h 23m. Fly via Frontier to get the fastest option. The distance between San Diego and Denver is about 856 mi. Generally, flights for this route are nonstop.

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

Currently priced at $82, Frontier will fly you from San Diego to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Spirit Airlines for as low as $110. Users have found that Frontier is 52% cheaper than the other options available to this destination.

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 $33 on Frontier. Other airlines that offer cheap prices include United Airlines from $49 and Spirit Airlines from $69 one-way.

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
2h 25m
Average temperature for May in Denver
73.4 °F
Avg rainfall for May in Denver
1.9 ″

Airports servicing San Diego

Airports servicing Denver

Top 6 airlines flying from San Diego to Denver

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
Spirit Airlines
$63 $159 No cancel fee 65%
Delta
$82 $161 No cancel fee N/A
Frontier
$77 $174 No cancel fee 62%
American Airlines
$57 $177 No cancel fee 71%
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 43% of SAN to DEN departures
Afternoon Noon to 6 PM 31% of SAN to DEN departures
Early morning Midnight to 6 AM 21% 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
16 daily flights
Monday
17 daily flights
Tuesday
15 daily flights
Wednesday
15 daily flights
Thursday
17 daily flights
Friday
15 daily flights
Saturday
5 daily flights
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