Cheap Flights From Denver Intl. (DEN) To San Diego Intl. (SAN)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Denver (DEN) to San Diego (SAN)

The cheapest flights to San Diego Intl. found within the past 7 days were CA $189 round trip and CA $95 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Oct. 18 - Sat, Oct. 25
DEN
Denver
SAN
San Diego
CA $189 Roundtrip, found 4 days ago
CA $189
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Denver to San Diego, returning Sat, Oct. 25, priced at CA $189 found 4 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $304 Roundtrip, found 3 days ago
CA $304
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $304 found 3 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $324 Roundtrip, found 3 days ago
CA $324
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $324 found 3 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $330 Roundtrip, found 3 days ago
CA $330
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $330 found 3 days ago
Thu, Sep. 18 - Sun, Sep. 21
DEN
Denver
SAN
San Diego
CA $339 Roundtrip, found 5 days ago
CA $339
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Sep. 18 from Denver to San Diego, returning Sun, Sep. 21, priced at CA $339 found 5 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $373 Roundtrip, found 3 days ago
CA $373
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $373 found 3 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $374 Roundtrip, found 3 days ago
CA $374
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $374 found 3 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $380 Roundtrip, found 3 days ago
CA $380
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $380 found 3 days ago
Thu, Sep. 18 - Sun, Sep. 21
DEN
Denver
SAN
San Diego
CA $392 Roundtrip, found 5 days ago
CA $392
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Sep. 18 from Denver to San Diego, returning Sun, Sep. 21, priced at CA $392 found 5 days ago
Fri, Aug. 29 - Sun, Aug. 31
DEN
Denver
SAN
San Diego
CA $395 Roundtrip, found 3 days ago
CA $395
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Aug. 29 from Denver to San Diego, returning Sun, Aug. 31, priced at CA $395 found 3 days ago

Frequently asked questions

Are there direct flights from Denver Airport to San Diego Airport?
Sometimes, it's the journey that counts; other times, the magic is in the destination. But if you just want to get to where you're going fast, multiple airlines advertise direct flights from Denver Airport to San Diego Airport, including Southwest Airlines and United Airlines.
What airlines fly from Denver Airport to San Diego Airport?
You can take your pick from a few airlines with direct flights between Denver and San Diego County. Southwest Airlines (WN) is one of the most reliable. This carrier operates around 178 flights each month. If that's not enough for you, have a look at the deals on offer from United Airlines (UA). This carrier operates 152 flights every month. Between the two, you're sure to find the flight to suit your travel plans.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.