$33 Cheap flight deals from San Francisco (SJC) to Castle Rock (DEN)

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

This Weekend's Flight Deals from San Francisco to Castle Rock

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Feb 22 - Tue, Feb 24
SFO
San Francisco Intl.
DEN
Denver Intl.
$194 Roundtrip, found 2 days ago
$194
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Feb 22 from San Francisco Intl. to Denver Intl., returning Tue, Feb 24, priced at $194 found 2 days ago
Sun, Feb 22 - Thu, Feb 26
SJC
Norman Y. Mineta San Jose Intl.
DEN
Denver Intl.
$204 Roundtrip, found 5 hours ago
$204
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sun, Feb 22 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Thu, Feb 26, priced at $204 found 5 hours ago
Sat, Feb 21 - Wed, Feb 25
OAK
Oakland Intl.
DEN
Denver Intl.
$303 Roundtrip, found 4 days ago
$303
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sat, Feb 21 from Oakland Intl. to Denver Intl., returning Wed, Feb 25, priced at $303 found 4 days ago

Airfares from $33 One Way, $61 Round Trip from San Francisco to Castle Rock

Prices starting at $61 for return flights and $33 for one-way flights to Castle Rock were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 18 - Wed, Apr 22
SFO
San Francisco
DEN
Denver
$61 Roundtrip, found 5 days ago
$61
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Apr 18 from San Francisco to Denver, returning Wed, Apr 22, priced at $61 found 5 days ago
Mon, Apr 27 - Mon, May 4
SJC
San Jose
DEN
Denver
$160 Roundtrip, found 5 hours ago
$160
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, Apr 27 from San Jose to Denver, returning Mon, May 4, priced at $160 found 5 hours ago
Wed, Apr 15 - Tue, Apr 21
SFO
San Francisco
DEN
Denver
$167 Roundtrip, found 3 days ago
$167
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Apr 15 from San Francisco to Denver, returning Tue, Apr 21, priced at $167 found 3 days ago
Fri, Apr 17 - Sat, Apr 18
SFO
San Francisco
DEN
Denver
$177 Roundtrip, found 3 days ago
$177
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Fri, Apr 17 from San Francisco to Denver, returning Sat, Apr 18, priced at $177 found 3 days ago
Wed, Apr 15 - Tue, Apr 21
OAK
Oakland
DEN
Denver
$178 Roundtrip, found 3 days ago
$178
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Apr 15 from Oakland to Denver, returning Tue, Apr 21, priced at $178 found 3 days ago

Castle Rock economy flight packages

Price found within the past 48 hours. Click for updated prices.
Gravity Haus Denver
3.5-star property

Gravity Haus Denver

8.8/10 Excellent! (184 reviews)

Apr 5 - Apr 10

5 night stay

San Francisco (SFO) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $754, price is now $510 per person
$510
per person
found 1 day ago
Easy check in and great rooms! Great beds and strong water pressure in shower! The food at the in house restaurant is 5 star!

Reviewed on Jul 26, 2024

Limelight Hotel Aspen
4.0-star property

Limelight Hotel Aspen

9.6/10 Exceptional! (1,003 reviews)

Mar 23 - Mar 26

3 night stay

San Francisco (SFO) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $2,085, price is now $1,358 per person
$1,358
per person
found 1 day ago
Everyone and everything was amazing. Staff were nice and friendly, the room was spotless every day and you can’t say enough about how amazing the breakfast is. In a town where a good bang for your buck is hard to come by, the Limelight is a fantastic option regardless of your price point.

Reviewed on Dec 8, 2025

Limelight Hotel Snowmass
4.0-star property

Limelight Hotel Snowmass

9.6/10 Exceptional! (757 reviews)

Mar 23 - Mar 26

3 night stay

San Francisco (SFO) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,457, price is now $963 per person
$963
per person
found 1 day ago
I had a fabulous stay at the property as a last minute booking. Great breakfast buffet in the morning and I was also able to bring my dog. I loved the convenience of Base Village. There is a lot of construction on the lot behind so be prepared to wake up early. Only issue is that I didn’t receive room service nor towels during my stay. Perhaps it’s a standard these days from an environmental standpoint but hadn’t experienced the lack of that service in the Aspen/Snowmass area before. Otherwise, I would definitely stay again.

Reviewed on Jun 25, 2024

Don't see what you're looking for?
See all available trips from San Francisco to Castle Rock
View all trips

More About Flying To Castle Rock from San Francisco

Route Information for Flights from San Francisco to Castle Rock

Origin Airport IATA Code
SJC
Destination Airport IATA Code
DEN
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

San Francisco to Castle Rock

Looking for guaranteed low prices on San Francisco to Castle Rock flights? Orbitz is your source and much more. From cutting-edge mobile tools to great deals, Orbitz makes it easy to book your dream vacation.

Frequent Flyers Earn Miles

Earn frequent flyer miles or points on Orbitz flights from San Francisco to Castle Rock. When booking your San Francisco to Castle Rock flights, have your frequent flyer number on hand and add it where prompted. Your Orbitz account can store your number for future use, meaning you never miss out on your rewards.

Book Orbitz on the Go

With the Orbitz mobile apps for Android and iPhone, you no longer have to be sitting at your desk to book San Francisco to Castle Rock flights. With a few easy clicks, you can book your flights, research hotel rooms, and check your flight status and other important flight information.

Easily Plan Your Vacation

Not only does Orbitz offer great prices on flights from San Francisco to Castle Rock, but you will also find fantastic deals on hotels, cruises, and vacation activities. Never miss out on that dream trip or waste hours waiting in long lines—you can buy tickets to attraction in advance with Orbitz to guarantee admission to your favorite places.

Best Deals At Your Fingertips

Orbitz combines low prices on San Francisco to Castle Rock flights with discounts on quality hotels. Using Orbitz’s Display Matrix, you can see all your options and savings easily. With our low price guarantee, you know you have the best deals at your fingertips.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.