DEN

$49 Find Cheap Flights from California to Denver - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Denver departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from California to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from California to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from California to Denver

Thu, Sep 17 - Mon, Sep 21
Frontier Logo
6:15 am - 9:35 am
ONT
-
DEN
2h 20mnonstop
Frontier Logo
10:29 pm - 11:47 pm
DEN
-
ONT
2h 18mnonstop
$103Frontier
Thu, Aug 20 - Sat, Aug 22
Frontier Logo
6:00 am - 9:24 am
ONT
-
DEN
2h 24mnonstop
Frontier Logo
10:29 pm - 11:50 pm
DEN
-
ONT
2h 21mnonstop
$103Frontier
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
3:06 pm - 6:14 pm
LAS
-
DEN
2h 08mnonstop
United Airlines Logo
7:45 pm - 8:51 pm
DEN
-
LAS
2h 06mnonstop
$149United Airlines
Tue, Aug 25 - Tue, Sep 1
Southwest Logo
3:20 pm - 6:20 pm
LAS
-
DEN
2h 00mnonstop
Southwest Logo
7:55 pm - 8:55 pm
DEN
-
LAS
2h 00mnonstop
$149Southwest
Fri, Sep 18 - Sat, Sep 26
Southwest Logo
2:40 pm - 8:10 pm
SAN
-
DEN
4h 30m
1 stop
Southwest Logo
1:45 pm - 5:15 pm
DEN
-
SAN
4h 30m
1 stop
$152Southwest
Thu, Aug 20 - Tue, Sep 8
Multiple Airlines Logo
3:45 pm - 7:20 pm
SAN
-
DEN
2h 35mnonstop
Multiple Airlines Logo
6:17 am - 7:50 am
DEN
-
SAN
2h 33mnonstop
$156Multiple Airlines
Thu, Sep 24 - Mon, Sep 28
United Airlines Logo
8:45 am - 12:18 pm
SAN
-
DEN
2h 33mnonstop
United Airlines Logo
9:00 pm - 10:27 pm
DEN
-
SAN
2h 27mnonstop
$157United Airlines
Wed, Sep 2 - Sat, Sep 5
Alaska Airlines Logo
8:48 am - 12:20 pm
SAN
-
DEN
2h 32mnonstop
Alaska Airlines Logo
1:43 pm - 3:16 pm
DEN
-
SAN
2h 33mnonstop
$157Alaska Airlines
Mon, Oct 12 - Sun, Oct 25
Alaska Airlines Logo
8:19 pm - 11:59 pm
SAN
-
DEN
2h 40mnonstop
Alaska Airlines Logo
6:59 pm - 8:34 pm
DEN
-
SAN
2h 35mnonstop
$157Alaska Airlines
Fri, Oct 9 - Mon, Oct 12
Multiple Airlines Logo
3:54 pm - 11:59 pm
LAS
-
DEN
7h 05m
1 stop
Multiple Airlines Logo
6:23 am - 7:25 am
DEN
-
LAS
2h 02mnonstop
$159Multiple Airlines
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Good to know

Low season

January

Cheapest flight

$49
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Ontario to Denver

Flights from California to Denver: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from California to Denver 
Learn how KAYAK collects reviews and tips from users.
Verified travelerFlew with Delta
LAX
-
DEN
Apr 2025
It’s an easy short flight, so a quick recharge nap is nice. A neck pillow is recommended.
Verified travelerFlew with Lufthansa
PSP
-
DEN
Mar 2024
Palm Springs is beautiful airport, check in your tickets before arriving. Busy drop off but still manageable.
Verified travelerFlew with United Airlines
SFO
-
DEN
Mar 2024
Get TSA PRE and CLEAR. Life will be easy.
MichaelFlew with United Airlines
LAX
-
DEN
Mar 2024
Arrive early if you have carry-on luggage. Eat before you get on the plane.
BrianFlew with United Airlines
SBP
-
DEN
Jan 2024
Don’t arrive too early since it’s a small airport.

FAQs for booking flights from California to Denver

  • How does KAYAK find such low prices on flights from California to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from California is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from California to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to California with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Denver

Information on the airport you'll fly into in Denver

Denver (DEN)