S$126 Cheap Flights from Denver to San Diego

View S$126 flight on Sat, 23 May, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at S$126 for one-way flights and S$278 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$278 Return, found 3 days ago
S$278
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$278 found 3 days ago
United
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$328 Return, found 3 days ago
S$328
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$328 found 3 days ago
American Airlines
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$336 Return, found 3 days ago
S$336
Return
found 3 days ago
Select American Airlines flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$336 found 3 days ago
United
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$354 Return, found 3 days ago
S$354
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$354 found 3 days ago
American Airlines
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$362 Return, found 3 days ago
S$362
Return
found 3 days ago
Select American Airlines flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$362 found 3 days ago
American Airlines
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$373 Return, found 3 days ago
S$373
Return
found 3 days ago
Select American Airlines flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$373 found 3 days ago
Delta
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$380 Return, found 3 days ago
S$380
Return
found 3 days ago
Select Delta flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$380 found 3 days ago
American Airlines
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$399 Return, found 3 days ago
S$399
Return
found 3 days ago
Select American Airlines flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$399 found 3 days ago
United
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$401 Return, found 3 days ago
S$401
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$401 found 3 days ago
United
Sat, 2 May - Sun, 3 May
DEN
Denver
SAN
San Diego
S$405 Return, found 3 days ago
S$405
Return
found 3 days ago
Select United flight, departing Sat, 2 May from Denver to San Diego, returning Sun, 3 May, priced at S$405 found 3 days ago

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

April is typically the cheapest month to fly

From S$72 - S$132 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 S$278. 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
S$277
Distance
1363 km
Average flight time
1 hour 27 mins

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