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

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The best prices from San Diego International 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 International (SAN) to Denver (DEN)

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 International to Denver

One-way from

$68

One-way flight from San Diego International 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 International to Denver?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 28% on the overall cost on flights from San Diego International to Denver.

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

Travelers have found it’s best to book a flight 14 days in advance to save up to 12% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 14 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Diego International to Denver 1-2 weeks in advance for as low as $88, or $106 for flights within the next 24 hours.

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

Our data shows that August tends to be the cheapest month to fly to Denver from San Diego International. 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 International to Denver (SAN - DEN)?

It’s optimal to fly from San Diego International to Denver in the evening. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from San Diego International to Denver in January, February 2021

The best prices found for SAN to DEN flights for January, February
25 Feb - 28 Feb
$62pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
25 Feb - 8 Mar
$65pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
26 Feb - 9 Mar
$66pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

San Diego International to Denver 2021 flight deals

Cheap flights to Denver from San Diego International found for this year
25 Feb - 28 Feb
$62pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
18 Mar - 31 Mar
$63pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
2 Mar - 9 Mar
$64pp
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 International

Save time with San Diego International to Denver direct flight deals
25 Feb - 28 Feb
$62pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
18 Mar - 31 Mar
$63pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
2 Mar - 9 Mar
$64pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

Last minute flights from San Diego International to Denver

Late deals on round-trip flights to Denver from San Diego International, departing today and this week
27 Jan - 31 Jan
$67pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
28 Jan - 31 Jan
$68pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego
28 Jan - 4 Feb
$69pp
SAN
San Diego
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
SAN
San Diego

One-way flights to Denver from San Diego International

The cheapest one-way flights from San Diego International to Denver
7:04 am - 12:56 pm
Multiple Airlines
1 Stop
4h 52m
SAN - DEN
Multiple Airlines
$68
Gotogate
3:25 pm - 12:04 pm
Spirit Airlines
2 Stops
19h 39m
SAN - DEN
Spirit Airlines
$69
Gotogate
1:48 am - 1:08 pm
American Airlines
2 Stops
10h 20m
SAN - DEN
American Airlines

Related info for your journey

Useful info, stats and facts about San Diego International to Denver flights.

Flight FAQs

From San Diego International 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.

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

New policies can now be found on Delta to help keep travelers safe while flying. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from San Diego to Denver Intl. Policies will vary by airline.

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 International to Denver for under $100 on Cheapflights?

Yes, there are multiple flights from San Diego International to Denver for under $100. The cheapest flight booked recently is on Frontier for just $62, but on average you can expect to pay $73.

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

Cheapflights has at least 20 direct flights from San Diego International to Denver under $100. A good price for a nonstop flight from San Diego International to Denver is less than $73.

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

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

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.

Does it rain more in San Diego or Denver?

Expected rainfall in San Diego is less than in Denver. You can expect this to be the case over the next 12 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 International to Denver?

Departing from San Diego International to Denver will take you 2h 26m. Most flights are nonstop.

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

According to our current data, Frontier ($62), offers the cheapest pricing from San Diego International to Denver. Users have found that Frontier is 63% cheaper than the other options available to this destination.

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

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $27. Spirit Airlines flights start at $52 while deals on American Airlines start at $66 one-way.

Alternative routes for San Diego International to Denver

Destination information for Denver

Things to know before you go. Useful info for your trip from San Diego International to Denver
Flight duration
2h 30m
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 International to Denver

The chart below displays the airlines Cheapflights users traveling from San Diego International 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 International to Denver

Morning 6 AM to noon 57% of SAN to DEN departures
Afternoon Noon to 6 PM 27% of SAN to DEN departures
Early morning Midnight to 6 AM 16% of SAN to DEN departures
Evening 6 PM to midnight 0% of SAN to DEN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Diego International to Denver
Sunday
9 daily flights
Monday
10 daily flights
Tuesday
9 daily flights
Wednesday
10 daily flights
Thursday
9 daily flights
Friday
10 daily flights
Saturday
10 daily flights
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