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 $247 round trip and CA $125 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Sep 16 - Wed, Sep 16
DEN
Denver
SAN
San Diego
CA $247 Roundtrip, found 1 day ago
CA $247
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Denver to San Diego, returning Wed, Sep 16, priced at CA $247 found 1 day ago
Sat, Sep 5 - Wed, Sep 9
DEN
Denver
SAN
San Diego
CA $249 Roundtrip, found 7 hours ago
CA $249
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Denver to San Diego, returning Wed, Sep 9, priced at CA $249 found 7 hours ago
Sat, Sep 5 - Wed, Sep 9
DEN
Denver
SAN
San Diego
CA $253 Roundtrip, found 7 hours ago
CA $253
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Denver to San Diego, returning Wed, Sep 9, priced at CA $253 found 7 hours ago
Tue, Sep 1 - Wed, Sep 2
DEN
Denver
SAN
San Diego
CA $255 Roundtrip, found 1 day ago
CA $255
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Denver to San Diego, returning Wed, Sep 2, priced at CA $255 found 1 day ago
Thu, Sep 24 - Sat, Sep 26
DEN
Denver
SAN
San Diego
CA $262 Roundtrip, found 2 days ago
CA $262
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Sep 24 from Denver to San Diego, returning Sat, Sep 26, priced at CA $262 found 2 days ago
Sat, Aug 22 - Sun, Aug 23
DEN
Denver
SAN
San Diego
CA $263 Roundtrip, found 2 days ago
CA $263
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Denver to San Diego, returning Sun, Aug 23, priced at CA $263 found 2 days ago
Tue, Sep 1 - Mon, Sep 7
DEN
Denver
SAN
San Diego
CA $268 Roundtrip, found 1 day ago
CA $268
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Denver to San Diego, returning Mon, Sep 7, priced at CA $268 found 1 day ago
Fri, Aug 28 - Sat, Aug 29
DEN
Denver
SAN
San Diego
CA $269 Roundtrip, found 3 days ago
CA $269
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Aug 28 from Denver to San Diego, returning Sat, Aug 29, priced at CA $269 found 3 days ago
Thu, Oct 1 - Sun, Oct 4
DEN
Denver
SAN
San Diego
CA $276 Roundtrip, found 1 day ago
CA $276
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Oct 1 from Denver to San Diego, returning Sun, Oct 4, priced at CA $276 found 1 day ago
Mon, Oct 19 - Thu, Oct 22
DEN
Denver
SAN
San Diego
CA $278 Roundtrip, just found
CA $278
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Oct 19 from Denver to San Diego, returning Thu, Oct 22, priced at CA $278 just found

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.