S$121 Cheap Flights from San Diego to Denver

View S$121 flight on Mon, 23 Feb, 2026Opens 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$121 for one-way flights and S$241 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 23 Feb - Thu, 26 Feb
SAN
San Diego
DEN
Denver
S$241 Return, found 6 days ago
S$241
Return
found 6 days ago
Select United flight, departing Mon, 23 Feb from San Diego to Denver, returning Thu, 26 Feb, priced at S$241 found 6 days ago
United
Mon, 23 Feb - Thu, 26 Feb
SAN
San Diego
DEN
Denver
S$248 Return, found 6 days ago
S$248
Return
found 6 days ago
Select United flight, departing Mon, 23 Feb from San Diego to Denver, returning Thu, 26 Feb, priced at S$248 found 6 days ago
Delta
Mon, 23 Feb - Thu, 26 Feb
SAN
San Diego
DEN
Denver
S$253 Return, found 6 days ago
S$253
Return
found 6 days ago
Select Delta flight, departing Mon, 23 Feb from San Diego to Denver, returning Thu, 26 Feb, priced at S$253 found 6 days ago
Delta
Thu, 5 Feb - Mon, 9 Feb
SAN
San Diego
DEN
Denver
S$255 Return, found 7 hours ago
S$255
Return
found 7 hours ago
Select Delta flight, departing Thu, 5 Feb from San Diego to Denver, returning Mon, 9 Feb, priced at S$255 found 7 hours ago
United
Thu, 5 Feb - Mon, 9 Feb
SAN
San Diego
DEN
Denver
S$269 Return, found 7 hours ago
S$269
Return
found 7 hours ago
Select United flight, departing Thu, 5 Feb from San Diego to Denver, returning Mon, 9 Feb, priced at S$269 found 7 hours ago
Delta
Thu, 5 Feb - Mon, 9 Feb
SAN
San Diego
DEN
Denver
S$276 Return, found 7 hours ago
S$276
Return
found 7 hours ago
Select Delta flight, departing Thu, 5 Feb from San Diego to Denver, returning Mon, 9 Feb, priced at S$276 found 7 hours ago
United
Mon, 23 Feb - Thu, 26 Feb
SAN
San Diego
DEN
Denver
S$279 Return, found 6 days ago
S$279
Return
found 6 days ago
Select United flight, departing Mon, 23 Feb from San Diego to Denver, returning Thu, 26 Feb, priced at S$279 found 6 days ago
Delta
Thu, 5 Feb - Mon, 9 Feb
SAN
San Diego
DEN
Denver
S$285 Return, found 7 hours ago
S$285
Return
found 7 hours ago
Select Delta flight, departing Thu, 5 Feb from San Diego to Denver, returning Mon, 9 Feb, priced at S$285 found 7 hours ago
United
Mon, 23 Feb - Thu, 26 Feb
SAN
San Diego
DEN
Denver
S$286 Return, found 6 days ago
S$286
Return
found 6 days ago
Select United flight, departing Mon, 23 Feb from San Diego to Denver, returning Thu, 26 Feb, priced at S$286 found 6 days ago
United
Mon, 23 Feb - Thu, 26 Feb
SAN
San Diego
DEN
Denver
S$291 Return, found 6 days ago
S$291
Return
found 6 days ago
Select United flight, departing Mon, 23 Feb from San Diego to Denver, returning Thu, 26 Feb, priced at S$291 found 6 days ago

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

February is typically the cheapest month to fly

From S$62 - S$140 per traveller.
San Diego to Denver route information
Origin airport
San Diego Intl.
Destination airport
Denver Intl.
Return price
S$241
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$121 and roundtrip prices from S$241*.
 

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$241. 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

*Available to Expedia members.