San Diego (SAN) → Denver (DEN)
About San Diego to Denver Flights
Discover the best flights from San Diego to Denver, covering 1,371 km in approximately 2h 13m. San Diego (SAN) to Denver (DEN) is one of the busy short-haul routes within United States. With 4 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from San Diego to Denver.
12-Month Price History
Flight prices from San Diego to Denver vary significantly throughout the year. February typically offers the best deals with average prices around $216, while July sees the highest prices, averaging $363. Savvy travelers can save up to 40% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
75 days
For best prices
Booking Tips
For the best prices on San Diego to Denver flights, we recommend booking 78 days in advance. Domestic flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
Frontier Airlines F9 | $270 | - | - |
Southwest Airlines WN | $340 | - | - |
SkyWest Airlines OO | $410 | $1240 | $2290 |
United Airlines UA | $450 | $1300 | $2200 |
Frontier Airlines
F9
Economy
$270
Business
-
First
-
Southwest Airlines
WN
Economy
$340
Business
-
First
-
SkyWest Airlines
OO
Economy
$410
Business
$1240
First
$2290
United Airlines
UA
Economy
$450
Business
$1300
First
$2200
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Los Angeles → Denver
Los Angeles International (LAX) to Denver International (DEN)
Distance: 1,385 km
Average price: $308
Tijuana → Denver
Tijuana International (TIJ) to Denver International (DEN)
Distance: 1,369 km
Average price: $397
Don't Forget Travel Insurance!
Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to Denver, United States.
- Medical coverage up to $250,000
- Trip interruption & delays covered
- Lost luggage protection included
From just $45/month • Works in 180+ countries • COVID-19 coverage included
Trusted by 100,000+ travelers
Frequently Asked Questions
How long is the flight from San Diego to Denver?
The flight time from San Diego (SAN) to Denver (DEN) is approximately 2 hours and 13 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between San Diego and Denver?
The aerial distance between San Diego and Denver is 1,371 kilometers (852 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from San Diego to Denver?
Several airlines operate flights between San Diego and Denver, including United Airlines, Southwest Airlines, Frontier Airlines and 1 more airlines. Direct flights are available on this route.
What is the cheapest month to fly from San Diego to Denver?
Based on historical data, February typically offers the lowest airfares for flights from San Diego to Denver. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Denver?
For the best prices on San Diego to Denver flights, we recommend booking 75 days in advance. Domestic flights can sometimes offer good last-minute deals, but advance booking is usually cheaper.
Do I need a visa to travel from San Diego to Denver?
Visa requirements depend on your nationality and the purpose of your visit. Since this is a domestic flight, no visa is required for citizens.
What is the time difference between San Diego and Denver?
San Diego operates on America/Los_Angeles time zone, while Denver is in the America/Denver time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.