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 $138 round trip and CA $69 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Jan 10 - Sun, Jan 11
DEN
Denver
SAN
San Diego
CA $138 Roundtrip, found 2 days ago
CA $138
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Jan 10 from Denver to San Diego, returning Sun, Jan 11, priced at CA $138 found 2 days ago
Wed, Dec 31 - Wed, Jan 7
DEN
Denver
SAN
San Diego
CA $167 Roundtrip, found 5 days ago
CA $167
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Dec 31 from Denver to San Diego, returning Wed, Jan 7, priced at CA $167 found 5 days ago
Sat, Jan 24 - Sat, Jan 31
DEN
Denver
SAN
San Diego
CA $168 Roundtrip, found 6 days ago
CA $168
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Denver to San Diego, returning Sat, Jan 31, priced at CA $168 found 6 days ago
Wed, Dec 31 - Wed, Jan 7
DEN
Denver
SAN
San Diego
CA $261 Roundtrip, found 5 days ago
CA $261
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Dec 31 from Denver to San Diego, returning Wed, Jan 7, priced at CA $261 found 5 days ago
Wed, Dec 31 - Wed, Jan 7
DEN
Denver
SAN
San Diego
CA $291 Roundtrip, found 5 days ago
CA $291
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Dec 31 from Denver to San Diego, returning Wed, Jan 7, priced at CA $291 found 5 days ago
Sat, Jan 10 - Sun, Jan 11
DEN
Denver
SAN
San Diego
CA $357 Roundtrip, found 2 days ago
CA $357
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Jan 10 from Denver to San Diego, returning Sun, Jan 11, priced at CA $357 found 2 days ago
Sat, Jan 10 - Sun, Jan 11
DEN
Denver
SAN
San Diego
CA $380 Roundtrip, found 2 days ago
CA $380
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Jan 10 from Denver to San Diego, returning Sun, Jan 11, priced at CA $380 found 2 days ago
Fri, Dec 26 - Fri, Jan 2
DEN
Denver
SAN
San Diego
CA $382 Roundtrip, found 1 day ago
CA $382
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 26 from Denver to San Diego, returning Fri, Jan 2, priced at CA $382 found 1 day ago
Wed, Dec 31 - Wed, Jan 7
DEN
Denver
SAN
San Diego
CA $385 Roundtrip, found 5 days ago
CA $385
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Dec 31 from Denver to San Diego, returning Wed, Jan 7, priced at CA $385 found 5 days ago
Fri, Dec 26 - Fri, Jan 2
DEN
Denver
SAN
San Diego
CA $387 Roundtrip, found 1 day ago
CA $387
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 26 from Denver to San Diego, returning Fri, Jan 2, priced at CA $387 found 1 day 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.