Cheap Flight Tickets from Denver (DEN) to San Diego (SAN), Starting at $212

Good to Know: Cheapest and Fastest DEN - SAN Flights

Useful information for finding best airline tickets from Denver International to San Diego International on your next trip.

Cheapest Round Trip Flight

$212

F9 Frontier Airlines • 1 stop • 25h 12m

Oct 07 – Oct 12

The cheapest round trip flight from Denver to San Diego (DEN-SAN-DEN) is currently $212

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Cheapest Direct Flight

$244

WN Southwest Airlines • nonstop • 3h 45m

Oct 08

The cheapest nonstop flight from Denver to San Diego (DEN-SAN) is currently $244

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Fastest Flight

3h 42m

The fastest nonstop flight from Denver to San Diego (DEN-SAN) takes 3h 42m

Top Airlines Flying from Denver to San Diego

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Denver (DEN) to San Diego (SAN)

Compare and book low fare round-trip air tickets from Denver to San Diego. Ideal for travelers with confirmed return itineraries.

Oct 07 - Oct 12, Economy
F9
Denver → San Diego
25h 12m
- • 1 stop
F9
Denver → San Diego
3h 53m
- • nonstop
$212
Frontier Airlines
Oct 07 - Oct 12, Economy
AA
Denver → San Diego
9h 2m
4:53 PM - 9:35 PM • 1 stop
UA
Denver → San Diego
9h 9m
2:24 PM - 9:13 PM • 1 stop
$251
American Airlines
Oct 07 - Oct 12, Economy
WN
Denver → San Diego
7h 10m
3:40 PM - 7:10 PM • 1 stop
WN
Denver → San Diego
3h 45m
8:15 PM - 11:40 PM • nonstop
$262
Southwest Airlines
Oct 07 - Oct 12, Economy
WN
Denver → San Diego
8h 45m
12:40 PM - 5:05 PM • 1 stop
WN
Denver → San Diego
3h 45m
8:15 PM - 11:40 PM • nonstop
$272
Southwest Airlines
Oct 08 - Oct 13, Economy
DL
Denver → San Diego
10h 22m
6:25 PM - 11:47 PM • 1 stop
UA
Denver → San Diego
11h 45m
2:24 PM - 10:29 PM • 1 stop
$303
Delta Airlines
Oct 08 - Oct 13, Economy
AA
Denver → San Diego
5h 45m
- • 1 stop
AA
Denver → San Diego
23h 33m
- • 1 stop
$471
American Airlines

Fly from Denver to San Diego with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Denver to San Diego? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Denver to San Diego Flights

What are the airports in Denver?
DEN
What’s the most popular airline flying from DEN to SAN?
The most popular airline flying from Denver to San Diego are
Can I fly from DEN to SAN non-stop?
Yes, you can fly DEN to SAN non-stop on
Which airlines fly nonstop between Denver and San Diego?
The non-stop flights between Denver and San Diego are .
What’s the earliest departure time from DEN to SAN Airport?
The earliest flight leaves DEN at 7:43 am and lands in SAN - San Diego International
What are the airports in San Diego?
SAN
Can I make changes to my Denver to San Diego flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DEN to SAN?
Read the fare rules of the Denver to San Diego air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Denver and San Diego?
operate flights between Denver and San Diego
How long does a flight from Denver to San Diego take?
It takes approximately 2 hour to fly non-stop from DEN to SAN, which is 852.82 miles by air.
Which airlines provide the cheapest flights from Denver (DEN) to San Diego (SAN) ?
In the past couple of days, the cheapest tickets to SAN from DEN were found on AA : USD 251
Do I need a passport to fly between DEN and SAN?
No
What’s the latest departure time from DEN to SAN ?
The last flight leaves DEN at 7:0800 pm

Essential Information for Booking Flights from Denver (DEN) - AI Insights

What's the cheapest airline from den to san?
You can find budget-friendly flights from Denver (DEN) to San Diego (SAN) on Frontier Airlines. For a round-trip Premium Economy ticket, book in advance to secure Low Fares. Consider booking at least 25 days prior to your desired travel date for the best Savings.
What's the popular airline to fly from den to san?
Southwest Airlines offers budget-friendly flights from Denver (DEN) to San Diego (SAN), providing enhanced comfort in their Premium Economy cabin. For a round-trip journey, consider booking at least 25 days in advance to secure the best airfares. With Southwest Airlines as your preferred airline, you can enjoy affordable fares and convenient travel options for your next weekend getaway or summer vacation.
What's the cheapest day of the week to fly from den to san?
The cheapest day to fly from Denver International Airport (DEN) to San Diego International Airport (SAN) is Sunday. Flying on Sundays can result in budget-friendly flights, making it a great option for travelers like you who are looking for affordable airfares.
What's the cheapest month to fly from den to san?
The cheapest month to fly from Denver (DEN) to San Diego (SAN) is November. Flying during this time can result in budget-friendly flights, making it an ideal option for travelers looking for savings on airfares. With a round-trip ticket and premium economy class, you can enjoy enhanced comfort with more legroom and amenities.
Which airline/airlines fly from den to san?
Alaska Airlines and United Airlines offer direct flights from Denver International Airport (DEN) to San Diego International Airport (SAN). For a premium economy experience, consider booking with Alaska Airlines. You can find affordable airfares on websites like Skyscanner or Google Flights.
What is the cheapest airline to fly from Denver International Airport (DEN) to San Diego International Airport (SAN)?
Frontier Airlines (F9)
How far in advance can I book flights for a round trip from DEN to SAN?
You can book flights up to 25 days in advance.
Can I find affordable airfare options on your website for weekend getaways?
Yes, our website offers affordable airfare options for weekend getaways.
Do you offer any discounts or promotions for booking flights in July?
We offer discounts and promotions for booking flights in July.
What is the best way to compare airfares and find the cheapest flights between airports?
You can use our website to compare airfares and find the cheapest flights between airports.

Denver (DEN) to San Diego (SAN): Airport Information

Origin Airport Denver International , Denver, US
Destination Airport San Diego International , San Diego, US
Distance 853 miles

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