Denver to San Diego nonstop
Yes: Southwest, United, Alaska, Frontier and SkyWest fly direct from Denver (DEN) to San Diego (SAN) about 17 times a day, year-round.
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Denver to San Diego in numbers
Measured from US DOT filings, not estimated from distance.
- Distance and flight time
- 853 miles nonstop, about 2 hr 15 min gate to gate. Flight time is an estimate from the great-circle distance; the filings carry distance, not scheduled elapsed time.
- Seasonality
- Flew every month of the last year: busiest in June 2026 (122 flights a week), quietest in September 2025 (95 flights a week).
- Sep 2025: 95 flights a week
- Oct 2025: 120 flights a week
- Nov 2025: 120 flights a week
- Dec 2025: 121 flights a week
- Jan 2026: 113 flights a week
- Feb 2026: 115 flights a week
- Mar 2026: 120 flights a week
- Apr 2026: 118 flights a week
- May 2026: 116 flights a week
- Jun 2026: 122 flights a week
- Jul 2026: 122 flights a week
- Aug 2026: 122 flights a week
Flights a week by month, Sep 2025 to Aug 2026, from US DOT on-time filings. - Who operates the flights
- Southwest 40%, United 33%, Alaska 11%, Frontier 11%, SkyWest 5% (regional operator) of departures, counted across the August 2026 and February 2026 US DOT on-time filings.
- Fares
- Half of the 8,743 tickets in the US DOT fare survey for Q2 2025 sold between $100 and $225 one way, median $150. The survey runs a couple of quarters behind, so read it as the shape of the route's pricing rather than today's quote.
- Jul to Sep (Q3 2024): median $150 one way, middle half $100 to $225, 10,125 tickets
- Oct to Dec (Q4 2024): median $150 one way, middle half $100 to $225, 8,961 tickets
- Jan to Mar (Q1 2025): median $150 one way, middle half $100 to $225, 7,812 tickets
- Apr to Jun (Q2 2025): median $150 one way, middle half $100 to $225, 8,743 tickets
Fares held steady through the year: a median of $150 one way in every quarter of the DOT ticket survey (Q3 2024 to Q2 2025). Bars show the middle half of one-way fares; the mark is the median.
Flying the other way? San Diego to Denver nonstop.
Other airports near Denver with nonstops to San Diego
Within about 100 miles of Denver International Airport
Also nonstop from Denver (DEN)
Busiest other routes out of the same airport
- Phoenix (PHX) about 23 times a day
- Seattle (SEA) about 21 times a day
- Los Angeles (LAX) about 21 times a day
- Salt Lake City (SLC) about 21 times a day
- Chicago (ORD) about 18 times a day
- Las Vegas (LAS) about 18 times a day
- Dallas/Fort Worth (DFW) about 17 times a day
- Minneapolis (MSP) about 17 times a day
Staying in San Diego?
Sort out where you'll sleep and what you'll do once you land.
Exploring San Diego on foot? Take the free GPS audio walking tour
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