RM391 Cheap Flights from Denver (DEN) to San Diego (SAN)

View RM391 flight on Fri, 15 May 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at RM391 for one-way flights and RM781 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 15 May - Sat, 23 May
DEN
Denver
SAN
San Diego
RM781 Return, found 3 days ago
RM781
Return
found 3 days ago
Select Delta flight, departing Fri, 15 May from Denver to San Diego, returning Sat, 23 May, priced at RM781 found 3 days ago
United
Mon, 11 May - Fri, 15 May
DEN
Denver
SAN
San Diego
RM858 Return, found 5 days ago
RM858
Return
found 5 days ago
Select United flight, departing Mon, 11 May from Denver to San Diego, returning Fri, 15 May, priced at RM858 found 5 days ago
Delta
Fri, 15 May - Sat, 23 May
DEN
Denver
SAN
San Diego
RM861 Return, found 3 days ago
RM861
Return
found 3 days ago
Select Delta flight, departing Fri, 15 May from Denver to San Diego, returning Sat, 23 May, priced at RM861 found 3 days ago
American Airlines
Mon, 11 May - Fri, 15 May
DEN
Denver
SAN
San Diego
RM916 Return, found 5 days ago
RM916
Return
found 5 days ago
Select American Airlines flight, departing Mon, 11 May from Denver to San Diego, returning Fri, 15 May, priced at RM916 found 5 days ago
United
Mon, 11 May - Fri, 15 May
DEN
Denver
SAN
San Diego
RM936 Return, found 5 days ago
RM936
Return
found 5 days ago
Select United flight, departing Mon, 11 May from Denver to San Diego, returning Fri, 15 May, priced at RM936 found 5 days ago
United
Fri, 15 May - Sat, 23 May
DEN
Denver
SAN
San Diego
RM939 Return, found 3 days ago
RM939
Return
found 3 days ago
Select United flight, departing Fri, 15 May from Denver to San Diego, returning Sat, 23 May, priced at RM939 found 3 days ago
Delta
Sun, 10 May - Sat, 16 May
DEN
Denver
SAN
San Diego
RM946 Return, found 6 days ago
RM946
Return
found 6 days ago
Select Delta flight, departing Sun, 10 May from Denver to San Diego, returning Sat, 16 May, priced at RM946 found 6 days ago
Delta
Fri, 15 May - Sat, 23 May
DEN
Denver
SAN
San Diego
RM982 Return, found 3 days ago
RM982
Return
found 3 days ago
Select Delta flight, departing Fri, 15 May from Denver to San Diego, returning Sat, 23 May, priced at RM982 found 3 days ago
American Airlines
Mon, 11 May - Fri, 15 May
DEN
Denver
SAN
San Diego
RM995 Return, found 5 days ago
RM995
Return
found 5 days ago
Select American Airlines flight, departing Mon, 11 May from Denver to San Diego, returning Fri, 15 May, priced at RM995 found 5 days ago
Delta
Fri, 15 May - Sat, 23 May
DEN
Denver
SAN
San Diego
RM1,000 Return, found 3 days ago
RM1,000
Return
found 3 days ago
Select Delta flight, departing Fri, 15 May from Denver to San Diego, returning Sat, 23 May, priced at RM1,000 found 3 days ago

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McClellan-Palomar CLD. Average driving time to city centre is 38 minutes. Flights from RM 1,330
CLD
McClellan-Palomar
Average driving time to city centre38 min
Flights from RM 1,330

Find the cheapest month to fly from Denver (DEN) to San Diego (SAN)

April is typically the cheapest month to fly

From RM 226 - RM 411 per traveller.

Frequently asked questions

How much is a flight from Denver Intl. Airport (DEN) to San Diego Airport?
Round-trip journeys between DIA airport and SAN start from RM781. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DIA airport to SAN?
Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Denver Airport to San Diego Intl. Airport (SAN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for DEN to San Diego Intl. Airport (SAN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DIA airport to San Diego Intl. Airport (SAN)?
A flight distance of just 1,350 kilometres separates Denver and San Diego. Once you're in the air, you won't have time to do much more than listen to some short podcasts.
Which airlines fly direct from Denver Intl. Airport (DEN) to San Diego Airport?
Southwest Airlines (WN) is one of the preferred choices for travellers jetting between DIA airport and San Diego Airport. Choose from the 191 flights it operates on this route each month. Operating 152 flights each month along this route, United Airlines (UA) is another good option.
Are DIA airport to SAN flight tickets cheaper when they're purchased at the last minute?
Airline tickets from Denver Airport to SAN are available up to 12 months before departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's not something you should count on. Also, booking your flights ahead of time means you'll have more options — and you can avoid ending up with the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

Travel information

Origin airport
Denver Intl.
Destination airport
San Diego Intl.
Return price
RM781
Distance
1363 km
Average flight time
1 hour 27 mins

Explore a world of travel with Expedia

*Available to Expedia members.