S$135 Cheap Flights from San Diego to Denver

View S$135 flight on Sat, 13 Sep, 2025Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Denver Intl. Airport (DEN)

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Cheap Flights from San Diego to Denver (SAN-DEN)

Prices were available within the past 7 days and start at S$135 for one-way flights and S$275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$275 Return, found 6 days ago
S$275
Return
found 6 days ago
Select United flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$275 found 6 days ago
Delta
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$280 Return, found 6 days ago
S$280
Return
found 6 days ago
Select Delta flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$280 found 6 days ago
United
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$282 Return, found 6 days ago
S$282
Return
found 6 days ago
Select United flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$282 found 6 days ago
Delta
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$287 Return, found 6 days ago
S$287
Return
found 6 days ago
Select Delta flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$287 found 6 days ago
Delta
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$288 Return, found 6 days ago
S$288
Return
found 6 days ago
Select Delta flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$288 found 6 days ago
United
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$293 Return, found 6 days ago
S$293
Return
found 6 days ago
Select United flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$293 found 6 days ago
United
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$298 Return, found 6 days ago
S$298
Return
found 6 days ago
Select United flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$298 found 6 days ago
United
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$305 Return, found 6 days ago
S$305
Return
found 6 days ago
Select United flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$305 found 6 days ago
United
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$305 Return, found 6 days ago
S$305
Return
found 6 days ago
Select United flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$305 found 6 days ago
American Airlines
Sat, 13 Sep - Mon, 15 Sep
SAN
San Diego
DEN
Denver
S$338 Return, found 6 days ago
S$338
Return
found 6 days ago
Select American Airlines flight, departing Sat, 13 Sep from San Diego to Denver, returning Mon, 15 Sep, priced at S$338 found 6 days ago

Find the cheapest month to fly from San Diego (SAN) to Denver (DEN)

September is typically the cheapest month to fly

From S$62 - S$153 per traveller.

Graph displaying average flight prices per month

San Diego to Denver route information
Origin airport
San Diego Intl.
Destination airport
Denver Intl.
Return price
S$275
Distance
1363 km
Average flight time
3 hours 24 mins

Perfect flights from San Diego to Denver

Your Journey from San Diego to Denver

Start your unforgettable journey with Expedia. Our broad selection of flights from San Diego to Denver caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including United, Delta, American Airlines. Our selection of flights from San Diego Intl. to Denver Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with San Diego to Denver Flights

Experience the joy of finding cheap flights from San Diego Intl. to Denver Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$135 and roundtrip prices from S$275*.
 

Pre-Flight Essentials

Ensure a smooth journey from San Diego to Denver with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Denver

Picture yourself stepping off the plane in Denver and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your San Diego to Denver Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from San Diego to Denver.
 

Beyond the Flight – Exploring Denver

With Expedia, your adventure extends beyond the flight. Explore Denver at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from San Diego to Denver with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from San Diego to Denver with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from San Diego Airport to Denver Intl. Airport (DEN)?
The lowest price advertised for a round-trip flight between San Diego Intl. Airport (SAN) and Denver Intl. Airport (DEN) is S$275. But you better move fast. This price is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Diego Airport to Denver Intl. Airport (DEN)?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from San Diego Airport to DEN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SAN to DEN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SAN to Denver Intl. Airport (DEN)?
A flight distance of just 1,350 kilometres separates San Diego and Denver. Once you're up in the skies, you won't have time to do much more than listen to a few songs on your travel playlist.
Which airlines fly direct from San Diego Intl. Airport (SAN) to DIA airport?
Many people like to fly with Southwest Airlines (WN) from San Diego Intl. Airport (SAN) to Denver Airport. It offers 191 monthly flights, so you can pick a flight time that works for you. Offering 152 flights a month along this route, United Airlines (UA) is another traveller favourite.
Are San Diego Intl. Airport (SAN) to Denver Intl. Airport (DEN) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from SAN to DEN last minute could save you some cash. However, it might cost you a whole lot more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

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