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Denver → San Francisco

Dec 21, 2026 · return Dec 31, 2026

DEN → SFO1 adulteconomyRound trip

12 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Thu, Dec 31

Frontier Airlines
10:52 pmDEN
2h 51m
Nonstop
12:43 am+1SFO
Frontier Airlines
8:10 pmSFO
2h 36m
Nonstop
11:46 pmDEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Southwest Airlines
8:35 amDEN
2h 45m
Nonstop
10:20 amSFO
Southwest Airlines
8:00 amSFO
2h 30m
Nonstop
11:30 amDEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
3:37 pmDEN
2h 47m
Nonstop
5:24 pmSFO
United Airlines
8:54 pmSFO
2h 36m
Nonstop
12:30 am+1DEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Frontier Airlines
5:35 pmDEN
2h 56m
Nonstop
7:31 pmSFO
Frontier Airlines
8:10 pmSFO
2h 36m
Nonstop
11:46 pmDEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Southwest Airlines
5:35 pmDEN
2h 45m
Nonstop
7:20 pmSFO
Southwest Airlines
8:00 amSFO
2h 30m
Nonstop
11:30 amDEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
5:00 amDEN
2h 48m
Nonstop
6:48 amSFO
United Airlines
8:54 pmSFO
2h 36m
Nonstop
12:30 am+1DEN

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Thu, Dec 31

Alaska Airlines
1:54 pmDEN
5h 12m
SAN · 1h
6:06 pmSFO
Southwest Airlines
8:00 amSFO
2h 30m
Nonstop
11:30 amDEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Delta Air Lines
12:29 pmDEN
4h 45m
SLC · 1h 4m
4:14 pmSFO
Delta Air Lines
5:15 pmSFO
4h 54m
SLC · 1h 30m
11:09 pmDEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
11:16 amDEN
5h 13m
SMF · 1h 14m
3:29 pmSFO
United Airlines
8:54 pmSFO
2h 36m
Nonstop
12:30 am+1DEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
11:22 amDEN
4h 59m
MRY · 1h 22m
3:21 pmSFO
United Airlines
8:54 pmSFO
2h 36m
Nonstop
12:30 am+1DEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
11:25 amDEN
5h 2m
FAT · 1h 14m
3:27 pmSFO
United Airlines
8:54 pmSFO
2h 36m
Nonstop
12:30 am+1DEN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
11:15 amDEN
4h 50m
ONT · 1h 2m
3:05 pmSFO
United Airlines
8:54 pmSFO
2h 36m
Nonstop
12:30 am+1DEN

Round-trip total · 1 adult · Taxes included

Make this trip yours

DEN ⇄ SFO

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 → 2026-12-31Frontier AirlinesF93439 / F94310$210.382026-10-29T01:05:09Z
2026-12-21 → 2026-12-31Southwest AirlinesWN2104 / WN3428$344.252026-10-29T01:05:09Z
2026-12-21 → 2026-12-31United AirlinesUA2633 / UA301$376.132026-10-29T01:05:09Z
2026-12-21 → 2026-12-31Alaska Airlines / Southwest AirlinesAS1342 + AS1435 / WN3428$376.752026-10-29T01:05:09Z
2026-12-21 → 2026-12-31Delta Air LinesDL1553 + DL1088 / DL1088 + DL1667$439.882026-10-29T01:05:09Z
2026-12-21 → 2026-12-31Frontier AirlinesF91093 / F94310$210.382026-10-29T01:05:09Z
2026-12-21 → 2026-12-31Southwest AirlinesWN1817 / WN3428$344.252026-10-29T01:05:09Z
2026-12-21 → 2026-12-31United AirlinesUA2367 / UA301$376.132026-10-29T01:05:09Z
2026-12-21 → 2026-12-31United AirlinesUA1415 + UA5323 / UA301$389.132026-10-29T01:05:09Z
2026-12-21 → 2026-12-31United AirlinesUA1204 + UA4758 / UA301$389.132026-10-29T01:05:09Z
2026-12-21 → 2026-12-31United AirlinesUA335 + UA5427 / UA301$389.132026-10-29T01:05:09Z
2026-12-21 → 2026-12-31United AirlinesUA430 + UA1375 / UA301$389.132026-10-29T01:05:09Z

2026-12-21 → 2026-12-31 · $210.38

  • Frontier Airlines F93439: DEN 2026-12-21 22:52:00 → SFO 2026-12-22 00:43:00; nonstop; 171 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2026-12-31 20:10:00 → DEN 2026-12-31 23:46:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $344.25

  • Southwest Airlines WN2104: DEN 2026-12-21 08:35:00 → SFO 2026-12-21 10:20:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2026-12-31 08:00:00 → DEN 2026-12-31 11:30:00; nonstop; 150 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $376.13

  • United Airlines UA2633: DEN 2026-12-21 15:37:00 → SFO 2026-12-21 17:24:00; nonstop; 167 minutes. Local airport times.
  • United Airlines UA301: SFO 2026-12-31 20:54:00 → DEN 2027-01-01 00:30:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $376.75

  • Alaska Airlines AS1342 / AS1435: DEN 2026-12-21 13:54:00 → SFO 2026-12-21 18:06:00; 1 stop(s) via SAN; 312 minutes. Local airport times.
    • AS1342: DEN 2026-12-21 13:54:00 → SAN 2026-12-21 15:25:00; layover at SAN: 60 minutes.
    • AS1435: SAN 2026-12-21 16:25:00 → SFO 2026-12-21 18:06:00.
  • Southwest Airlines WN3428: SFO 2026-12-31 08:00:00 → DEN 2026-12-31 11:30:00; nonstop; 150 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $439.88

  • Delta Air Lines DL1553 / DL1088: DEN 2026-12-21 12:29:00 → SFO 2026-12-21 16:14:00; 1 stop(s) via SLC; 285 minutes. Local airport times.
    • DL1553: DEN 2026-12-21 12:29:00 → SLC 2026-12-21 14:06:00; layover at SLC: 64 minutes.
    • DL1088: SLC 2026-12-21 15:10:00 → SFO 2026-12-21 16:14:00.
  • Delta Air Lines DL1088 / DL1667: SFO 2026-12-31 17:15:00 → DEN 2026-12-31 23:09:00; 1 stop(s) via SLC; 294 minutes. Local airport times.
    • DL1088: SFO 2026-12-31 17:15:00 → SLC 2026-12-31 20:05:00; layover at SLC: 90 minutes.
    • DL1667: SLC 2026-12-31 21:35:00 → DEN 2026-12-31 23:09:00.

2026-12-21 → 2026-12-31 · $210.38

  • Frontier Airlines F91093: DEN 2026-12-21 17:35:00 → SFO 2026-12-21 19:31:00; nonstop; 176 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2026-12-31 20:10:00 → DEN 2026-12-31 23:46:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $344.25

  • Southwest Airlines WN1817: DEN 2026-12-21 17:35:00 → SFO 2026-12-21 19:20:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2026-12-31 08:00:00 → DEN 2026-12-31 11:30:00; nonstop; 150 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $376.13

  • United Airlines UA2367: DEN 2026-12-21 05:00:00 → SFO 2026-12-21 06:48:00; nonstop; 168 minutes. Local airport times.
  • United Airlines UA301: SFO 2026-12-31 20:54:00 → DEN 2027-01-01 00:30:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $389.13

  • United Airlines UA1415 / UA5323: DEN 2026-12-21 11:16:00 → SFO 2026-12-21 15:29:00; 1 stop(s) via SMF; 313 minutes. Local airport times.
    • UA1415: DEN 2026-12-21 11:16:00 → SMF 2026-12-21 13:01:00; layover at SMF: 74 minutes.
    • UA5323: SMF 2026-12-21 14:15:00 → SFO 2026-12-21 15:29:00.
  • United Airlines UA301: SFO 2026-12-31 20:54:00 → DEN 2027-01-01 00:30:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $389.13

  • United Airlines UA1204 / UA4758: DEN 2026-12-21 11:22:00 → SFO 2026-12-21 15:21:00; 1 stop(s) via MRY; 299 minutes. Local airport times.
    • UA1204: DEN 2026-12-21 11:22:00 → MRY 2026-12-21 13:03:00; layover at MRY: 82 minutes.
    • UA4758: MRY 2026-12-21 14:25:00 → SFO 2026-12-21 15:21:00.
  • United Airlines UA301: SFO 2026-12-31 20:54:00 → DEN 2027-01-01 00:30:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $389.13

  • United Airlines UA335 / UA5427: DEN 2026-12-21 11:25:00 → SFO 2026-12-21 15:27:00; 1 stop(s) via FAT; 302 minutes. Local airport times.
    • UA335: DEN 2026-12-21 11:25:00 → FAT 2026-12-21 13:01:00; layover at FAT: 74 minutes.
    • UA5427: FAT 2026-12-21 14:15:00 → SFO 2026-12-21 15:27:00.
  • United Airlines UA301: SFO 2026-12-31 20:54:00 → DEN 2027-01-01 00:30:00; nonstop; 156 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $389.13

  • United Airlines UA430 / UA1375: DEN 2026-12-21 11:15:00 → SFO 2026-12-21 15:05:00; 1 stop(s) via ONT; 290 minutes. Local airport times.
    • UA430: DEN 2026-12-21 11:15:00 → ONT 2026-12-21 12:33:00; layover at ONT: 62 minutes.
    • UA1375: ONT 2026-12-21 13:35:00 → SFO 2026-12-21 15:05:00.
  • United Airlines UA301: SFO 2026-12-31 20:54:00 → DEN 2027-01-01 00:30:00; nonstop; 156 minutes. Local airport times.

More dates for this route