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San Diego → Denver

Dec 21, 2026 · return Jan 4, 2027

SAN → DEN1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Mon, Jan 4

Frontier Airlines
5:29 pmSAN
2h 31m
Nonstop
9:00 pmDEN
Frontier Airlines
1:54 pmDEN
2h 27m
Nonstop
3:21 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
12:30 pmSAN
2h 20m
Nonstop
3:50 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
9:27 amSAN
2h 29m
Nonstop
12:56 pmDEN
Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
4:18 pmSAN
2h 27m
Nonstop
7:45 pmDEN
United Airlines
7:30 pmDEN
2h 30m
Nonstop
9:00 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Frontier Airlines
6:30 amSAN
2h 34m
Nonstop
10:04 amDEN
Frontier Airlines
1:54 pmDEN
2h 27m
Nonstop
3:21 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
9:15 amSAN
2h 25m
Nonstop
12:40 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
8:24 pmSAN
2h 35m
Nonstop
11:59 pmDEN
Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
8:40 amSAN
2h 26m
Nonstop
12:06 pmDEN
United Airlines
7:30 pmDEN
2h 30m
Nonstop
9:00 pmSAN

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Jan 4

American Airlines
4:30 pmSAN
5h 28m
PHX · 2h
10:58 pmDEN
American Airlines
12:06 pmDEN
4h 34m
PHX · 1h 18m
3:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
2:15 pmSAN
4h 55m
SMF · 1h
8:10 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
11:00 amSAN
5h 10m
BOI · 1h 15m
5:10 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
8:25 amSAN
4h 35m
SLC · 1h
2:00 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
6:20 pmSAN
4h 15m
LAS · 1h
11:35 pmDEN
Southwest Airlines
12:20 pmDEN
2h 20m
Nonstop
1:40 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
5:19 pmSAN
4h 39m
PHX · 1h 19m
10:58 pmDEN
Alaska Airlines
8:35 amDEN
2h 51m
Nonstop
10:26 amSAN

Round-trip total · 1 adult · Taxes included

Make this trip yours

SAN ⇄ DEN

Economy

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

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2027-01-04Frontier AirlinesF92422 / F92817$168.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN3699 / WN1778$306.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Alaska AirlinesAS1342 / AS3059$330.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04United AirlinesUA682 / UA540$336.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04American AirlinesAA1950 + AA4952 / AA2447 + AA1950$348.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Frontier AirlinesF92818 / F92817$168.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN3698 / WN1778$306.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Alaska AirlinesAS3060 / AS3059$330.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04United AirlinesUA2476 / UA540$336.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN4318 + WN1102 / WN1778$320.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN1733 + WN760 / WN1778$320.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN3752 + WN4527 / WN1778$320.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN1409 + WN1053 / WN1778$320.002026-10-29T01:08:43Z
2026-12-21 → 2027-01-04Alaska AirlinesAS2089 + AA4952 / AS3059$347.502026-10-29T01:08:43Z

2026-12-21 → 2027-01-04 · $168.00

  • Frontier Airlines F92422: SAN 2026-12-21 17:29:00 → DEN 2026-12-21 21:00:00; nonstop; 151 minutes. Local airport times.
  • Frontier Airlines F92817: DEN 2027-01-04 13:54:00 → SAN 2027-01-04 15:21:00; nonstop; 147 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $306.00

  • Southwest Airlines WN3699: SAN 2026-12-21 12:30:00 → DEN 2026-12-21 15:50:00; nonstop; 140 minutes. Local airport times.
  • Southwest Airlines WN1778: DEN 2027-01-04 12:20:00 → SAN 2027-01-04 13:40:00; nonstop; 140 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $330.00

  • Alaska Airlines AS1342: SAN 2026-12-21 09:27:00 → DEN 2026-12-21 12:56:00; nonstop; 149 minutes. Local airport times.
  • Alaska Airlines AS3059: DEN 2027-01-04 08:35:00 → SAN 2027-01-04 10:26:00; nonstop; 171 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $336.00

  • United Airlines UA682: SAN 2026-12-21 16:18:00 → DEN 2026-12-21 19:45:00; nonstop; 147 minutes. Local airport times.
  • United Airlines UA540: DEN 2027-01-04 19:30:00 → SAN 2027-01-04 21:00:00; nonstop; 150 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $348.00

  • American Airlines AA1950 / AA4952: SAN 2026-12-21 16:30:00 → DEN 2026-12-21 22:58:00; 1 stop(s) via PHX; 328 minutes. Local airport times.
    • AA1950: SAN 2026-12-21 16:30:00 → PHX 2026-12-21 18:59:00; layover at PHX: 120 minutes.
    • AA4952: PHX 2026-12-21 20:59:00 → DEN 2026-12-21 22:58:00.
  • American Airlines AA2447 / AA1950: DEN 2027-01-04 12:06:00 → SAN 2027-01-04 15:40:00; 1 stop(s) via PHX; 274 minutes. Local airport times.
    • AA2447: DEN 2027-01-04 12:06:00 → PHX 2027-01-04 14:03:00; layover at PHX: 78 minutes.
    • AA1950: PHX 2027-01-04 15:21:00 → SAN 2027-01-04 15:40:00.

2026-12-21 → 2027-01-04 · $168.00

  • Frontier Airlines F92818: SAN 2026-12-21 06:30:00 → DEN 2026-12-21 10:04:00; nonstop; 154 minutes. Local airport times.
  • Frontier Airlines F92817: DEN 2027-01-04 13:54:00 → SAN 2027-01-04 15:21:00; nonstop; 147 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $306.00

  • Southwest Airlines WN3698: SAN 2026-12-21 09:15:00 → DEN 2026-12-21 12:40:00; nonstop; 145 minutes. Local airport times.
  • Southwest Airlines WN1778: DEN 2027-01-04 12:20:00 → SAN 2027-01-04 13:40:00; nonstop; 140 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $330.00

  • Alaska Airlines AS3060: SAN 2026-12-21 20:24:00 → DEN 2026-12-21 23:59:00; nonstop; 155 minutes. Local airport times.
  • Alaska Airlines AS3059: DEN 2027-01-04 08:35:00 → SAN 2027-01-04 10:26:00; nonstop; 171 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $336.00

  • United Airlines UA2476: SAN 2026-12-21 08:40:00 → DEN 2026-12-21 12:06:00; nonstop; 146 minutes. Local airport times.
  • United Airlines UA540: DEN 2027-01-04 19:30:00 → SAN 2027-01-04 21:00:00; nonstop; 150 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $320.00

  • Southwest Airlines WN4318 / WN1102: SAN 2026-12-21 14:15:00 → DEN 2026-12-21 20:10:00; 1 stop(s) via SMF; 295 minutes. Local airport times.
    • WN4318: SAN 2026-12-21 14:15:00 → SMF 2026-12-21 15:50:00; layover at SMF: 60 minutes.
    • WN1102: SMF 2026-12-21 16:50:00 → DEN 2026-12-21 20:10:00.
  • Southwest Airlines WN1778: DEN 2027-01-04 12:20:00 → SAN 2027-01-04 13:40:00; nonstop; 140 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $320.00

  • Southwest Airlines WN1733 / WN760: SAN 2026-12-21 11:00:00 → DEN 2026-12-21 17:10:00; 1 stop(s) via BOI; 310 minutes. Local airport times.
    • WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; layover at BOI: 75 minutes.
    • WN760: BOI 2026-12-21 15:30:00 → DEN 2026-12-21 17:10:00.
  • Southwest Airlines WN1778: DEN 2027-01-04 12:20:00 → SAN 2027-01-04 13:40:00; nonstop; 140 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $320.00

  • Southwest Airlines WN3752 / WN4527: SAN 2026-12-21 08:25:00 → DEN 2026-12-21 14:00:00; 1 stop(s) via SLC; 275 minutes. Local airport times.
    • WN3752: SAN 2026-12-21 08:25:00 → SLC 2026-12-21 11:35:00; layover at SLC: 60 minutes.
    • WN4527: SLC 2026-12-21 12:35:00 → DEN 2026-12-21 14:00:00.
  • Southwest Airlines WN1778: DEN 2027-01-04 12:20:00 → SAN 2027-01-04 13:40:00; nonstop; 140 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $320.00

  • Southwest Airlines WN1409 / WN1053: SAN 2026-12-21 18:20:00 → DEN 2026-12-21 23:35:00; 1 stop(s) via LAS; 255 minutes. Local airport times.
    • WN1409: SAN 2026-12-21 18:20:00 → LAS 2026-12-21 19:40:00; layover at LAS: 60 minutes.
    • WN1053: LAS 2026-12-21 20:40:00 → DEN 2026-12-21 23:35:00.
  • Southwest Airlines WN1778: DEN 2027-01-04 12:20:00 → SAN 2027-01-04 13:40:00; nonstop; 140 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $347.50

  • Alaska Airlines AS2089 / AA4952: SAN 2026-12-21 17:19:00 → DEN 2026-12-21 22:58:00; 1 stop(s) via PHX; 279 minutes. Local airport times.
    • AS2089: SAN 2026-12-21 17:19:00 → PHX 2026-12-21 19:40:00; layover at PHX: 79 minutes.
    • AA4952: PHX 2026-12-21 20:59:00 → DEN 2026-12-21 22:58:00.
  • Alaska Airlines AS3059: DEN 2027-01-04 08:35:00 → SAN 2027-01-04 10:26:00; nonstop; 171 minutes. Local airport times.

More dates for this route