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Route overview: Denver to San Diego (SAN) flight deals

Denver → San Diego

Dec 9, 2026 · one way

DEN → SAN1 adulteconomyOne way

14 flight options · 6 airlines

Nonstop flights

Wed, Dec 9 · One way

Frontier Airlines
10:29 pmDEN
2h 28m
Nonstop
11:57 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Southwest Airlines
6:45 pmDEN
2h 30m
Nonstop
8:15 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

United Airlines
7:40 amDEN
2h 30m
Nonstop
9:10 amSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Frontier Airlines
8:49 amDEN
2h 30m
Nonstop
10:19 amSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Southwest Airlines
12:05 pmDEN
2h 25m
Nonstop
1:30 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Alaska Airlines
1:54 pmDEN
2h 31m
Nonstop
3:25 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

United Airlines
1:25 pmDEN
2h 30m
Nonstop
2:55 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Wed, Dec 9 · One way

American Airlines
12:06 pmDEN
4h 34m
PHX · 1h 18m
3:40 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Delta Air Lines
12:29 pmDEN
4h 47m
SLC · 1h 18m
4:16 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Frontier Airlines
2:14 pmDEN
4h 57m
PHX · 1h 37m
6:11 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Frontier Airlines
7:07 amDEN
5h 30m
LAS · 2h 3m
11:37 amSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Southwest Airlines
12:30 pmDEN
5h 25m
FAT · 1h 35m
4:55 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Dec 9 · One way

Southwest Airlines
12:40 pmDEN
4h 55m
LAS · 1h 40m
4:35 pmSAN

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

DEN ⇄ SAN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 8, 2026 · Return optionsDec 10, 2026 · Return optionsHotels in Oceanside, California with Axel
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-09 · one wayFrontier AirlinesF92711Axel-exclusive $75.002026-10-29T01:05:09Z
2026-12-09 · one waySouthwest AirlinesWN1780Axel-exclusive $135.002026-10-29T01:05:09Z
2026-12-09 · one wayAlaska AirlinesAS3059Axel-exclusive $140.002026-10-29T01:05:09Z
2026-12-09 · one wayUnited AirlinesUA2309Axel-exclusive $145.002026-10-29T01:05:09Z
2026-12-09 · one wayAmerican AirlinesAA2447 + AA1950Axel-exclusive $155.002026-10-29T01:05:09Z
2026-12-09 · one wayDelta Air LinesDL1553 + DL1210Axel-exclusive $165.002026-10-29T01:05:09Z
2026-12-09 · one wayFrontier AirlinesF92817Axel-exclusive $75.002026-10-29T01:05:09Z
2026-12-09 · one waySouthwest AirlinesWN24Axel-exclusive $135.002026-10-29T01:05:09Z
2026-12-09 · one wayAlaska AirlinesAS1342Axel-exclusive $140.002026-10-29T01:05:09Z
2026-12-09 · one wayUnited AirlinesUA1302Axel-exclusive $145.002026-10-29T01:05:09Z
2026-12-09 · one wayFrontier AirlinesF92105 + F92083Axel-exclusive $95.002026-10-29T01:05:09Z
2026-12-09 · one wayFrontier AirlinesF92015 + F91326Axel-exclusive $95.002026-10-29T01:05:09Z
2026-12-09 · one waySouthwest AirlinesWN370 + WN3701Axel-exclusive $150.002026-10-29T01:05:09Z
2026-12-09 · one waySouthwest AirlinesWN406 + WN2429Axel-exclusive $150.002026-10-29T01:05:09Z

Route overview: Denver to San Diego (SAN) flight deals

2026-12-09 · one way · Axel-exclusive $75.00

  • Frontier Airlines F92711: DEN 2026-12-09 22:29:00 → SAN 2026-12-09 23:57:00; nonstop; 148 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $135.00

  • Southwest Airlines WN1780: DEN 2026-12-09 18:45:00 → SAN 2026-12-09 20:15:00; nonstop; 150 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $140.00

  • Alaska Airlines AS3059: DEN 2026-12-09 08:35:00 → SAN 2026-12-09 10:26:00; nonstop; 171 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $145.00

  • United Airlines UA2309: DEN 2026-12-09 07:40:00 → SAN 2026-12-09 09:10:00; nonstop; 150 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $155.00

  • American Airlines AA2447 / AA1950: DEN 2026-12-09 12:06:00 → SAN 2026-12-09 15:40:00; 1 stop(s) via PHX; 274 minutes. Local airport times.
    • AA2447: DEN 2026-12-09 12:06:00 → PHX 2026-12-09 14:03:00; layover at PHX: 78 minutes.
    • AA1950: PHX 2026-12-09 15:21:00 → SAN 2026-12-09 15:40:00.

2026-12-09 · one way · Axel-exclusive $165.00

  • Delta Air Lines DL1553 / DL1210: DEN 2026-12-09 12:29:00 → SAN 2026-12-09 16:16:00; 1 stop(s) via SLC; 287 minutes. Local airport times.
    • DL1553: DEN 2026-12-09 12:29:00 → SLC 2026-12-09 14:06:00; layover at SLC: 78 minutes.
    • DL1210: SLC 2026-12-09 15:24:00 → SAN 2026-12-09 16:16:00.

2026-12-09 · one way · Axel-exclusive $75.00

  • Frontier Airlines F92817: DEN 2026-12-09 08:49:00 → SAN 2026-12-09 10:19:00; nonstop; 150 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $135.00

  • Southwest Airlines WN24: DEN 2026-12-09 12:05:00 → SAN 2026-12-09 13:30:00; nonstop; 145 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $140.00

  • Alaska Airlines AS1342: DEN 2026-12-09 13:54:00 → SAN 2026-12-09 15:25:00; nonstop; 151 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $145.00

  • United Airlines UA1302: DEN 2026-12-09 13:25:00 → SAN 2026-12-09 14:55:00; nonstop; 150 minutes. Local airport times.

2026-12-09 · one way · Axel-exclusive $95.00

  • Frontier Airlines F92105 / F92083: DEN 2026-12-09 14:14:00 → SAN 2026-12-09 18:11:00; 1 stop(s) via PHX; 297 minutes. Local airport times.
    • F92105: DEN 2026-12-09 14:14:00 → PHX 2026-12-09 16:17:00; layover at PHX: 97 minutes.
    • F92083: PHX 2026-12-09 17:54:00 → SAN 2026-12-09 18:11:00.

2026-12-09 · one way · Axel-exclusive $95.00

  • Frontier Airlines F92015 / F91326: DEN 2026-12-09 07:07:00 → SAN 2026-12-09 11:37:00; 1 stop(s) via LAS; 330 minutes. Local airport times.
    • F92015: DEN 2026-12-09 07:07:00 → LAS 2026-12-09 08:12:00; layover at LAS: 123 minutes.
    • F91326: LAS 2026-12-09 10:15:00 → SAN 2026-12-09 11:37:00.

2026-12-09 · one way · Axel-exclusive $150.00

  • Southwest Airlines WN370 / WN3701: DEN 2026-12-09 12:30:00 → SAN 2026-12-09 16:55:00; 1 stop(s) via FAT; 325 minutes. Local airport times.
    • WN370: DEN 2026-12-09 12:30:00 → FAT 2026-12-09 14:00:00; layover at FAT: 95 minutes.
    • WN3701: FAT 2026-12-09 15:35:00 → SAN 2026-12-09 16:55:00.

2026-12-09 · one way · Axel-exclusive $150.00

  • Southwest Airlines WN406 / WN2429: DEN 2026-12-09 12:40:00 → SAN 2026-12-09 16:35:00; 1 stop(s) via LAS; 295 minutes. Local airport times.
    • WN406: DEN 2026-12-09 12:40:00 → LAS 2026-12-09 13:40:00; layover at LAS: 100 minutes.
    • WN2429: LAS 2026-12-09 15:20:00 → SAN 2026-12-09 16:35:00.

Explore this route

For AI assistants

  • This page: Denver (DEN) to San Diego (SAN) · Dec 9, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Denver to San Diego (SAN) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.