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

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

The cheapest flights to San Diego Intl. found within the past 7 days were CA $195 round trip and CA $93 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Apr 12 - Wed, Apr 15
DEN
Denver
SAN
San Diego
CA $195 Roundtrip, found 3 days ago
CA $195
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Apr 12 from Denver to San Diego, returning Wed, Apr 15, priced at CA $195 found 3 days ago
Sun, Apr 12 - Wed, Apr 15
DEN
Denver
SAN
San Diego
CA $211 Roundtrip, found 3 days ago
CA $211
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Apr 12 from Denver to San Diego, returning Wed, Apr 15, priced at CA $211 found 3 days ago
Thu, Apr 30 - Sun, May 3
DEN
Denver
SAN
San Diego
CA $221 Roundtrip, found 2 days ago
CA $221
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Apr 30 from Denver to San Diego, returning Sun, May 3, priced at CA $221 found 2 days ago
Thu, Apr 16 - Mon, Apr 20
DEN
Denver
SAN
San Diego
CA $225 Roundtrip, found 2 days ago
CA $225
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Apr 16 from Denver to San Diego, returning Mon, Apr 20, priced at CA $225 found 2 days ago
Sun, Apr 12 - Wed, Apr 15
DEN
Denver
SAN
San Diego
CA $254 Roundtrip, found 3 days ago
CA $254
Roundtrip
found 3 days ago
Select United flight, departing Sun, Apr 12 from Denver to San Diego, returning Wed, Apr 15, priced at CA $254 found 3 days ago
Thu, Apr 30 - Sun, May 3
DEN
Denver
SAN
San Diego
CA $263 Roundtrip, found 2 days ago
CA $263
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Apr 30 from Denver to San Diego, returning Sun, May 3, priced at CA $263 found 2 days ago
Sun, Apr 12 - Wed, Apr 15
DEN
Denver
SAN
San Diego
CA $282 Roundtrip, found 3 days ago
CA $282
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Apr 12 from Denver to San Diego, returning Wed, Apr 15, priced at CA $282 found 3 days ago
Fri, Apr 17 - Sun, Apr 19
DEN
Denver
SAN
San Diego
CA $284 Roundtrip, found 5 days ago
CA $284
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Apr 17 from Denver to San Diego, returning Sun, Apr 19, priced at CA $284 found 5 days ago
Thu, Apr 16 - Mon, Apr 20
DEN
Denver
SAN
San Diego
CA $285 Roundtrip, found 2 days ago
CA $285
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Apr 16 from Denver to San Diego, returning Mon, Apr 20, priced at CA $285 found 2 days ago
Sun, May 3 - Tue, May 5
DEN
Denver
SAN
San Diego
CA $297 Roundtrip, found 2 days ago
CA $297
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sun, May 3 from Denver to San Diego, returning Tue, May 5, priced at CA $297 found 2 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.

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*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.