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Route overview: Denver to San Francisco (SFO) flight deals

Denver → San Francisco

Dec 27, 2026 · return Jan 2, 2027

DEN → SFO1 adulteconomyRound trip

12 flight options · 5 airlines

Nonstop flights

Sun, Dec 27 – Sat, Jan 2

Frontier Airlines
10:29 pmDEN
2h 51m
Nonstop
12:20 am+1SFO
Frontier Airlines
9:23 pmSFO
2h 35m
Nonstop
12:58 am+1DEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

Southwest Airlines
8:35 amDEN
2h 45m
Nonstop
10:20 amSFO
Southwest Airlines
5:50 amSFO
2h 30m
Nonstop
9:20 amDEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

United Airlines
5:00 amDEN
2h 48m
Nonstop
6:48 amSFO
United Airlines
9:24 pmSFO
2h 36m
Nonstop
1:00 am+1DEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

Frontier Airlines
8:35 amDEN
2h 53m
Nonstop
10:28 amSFO
Frontier Airlines
9:23 pmSFO
2h 35m
Nonstop
12:58 am+1DEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

Southwest Airlines
12:40 pmDEN
2h 45m
Nonstop
2:25 pmSFO
Southwest Airlines
5:50 amSFO
2h 30m
Nonstop
9:20 amDEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

United Airlines
3:37 pmDEN
2h 47m
Nonstop
5:24 pmSFO
United Airlines
9:24 pmSFO
2h 36m
Nonstop
1:00 am+1DEN

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 27 – Sat, Jan 2

Alaska Airlines
1:54 pmDEN
5h 12m
SAN · 1h
6:06 pmSFO
Southwest Airlines
5:50 amSFO
2h 30m
Nonstop
9:20 amDEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

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

Sun, Dec 27 – Sat, Jan 2

United Airlines
11:22 amDEN
4h 59m
MRY · 1h 22m
3:21 pmSFO
United Airlines
9:24 pmSFO
2h 36m
Nonstop
1:00 am+1DEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

United Airlines
11:15 amDEN
4h 50m
ONT · 1h 2m
3:05 pmSFO
United Airlines
9:24 pmSFO
2h 36m
Nonstop
1:00 am+1DEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

United Airlines
11:25 amDEN
5h 2m
FAT · 1h 14m
3:27 pmSFO
United Airlines
9:24 pmSFO
2h 36m
Nonstop
1:00 am+1DEN

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Sat, Jan 2

United Airlines
11:16 amDEN
5h 13m
SMF · 1h 14m
3:29 pmSFO
United Airlines
9:24 pmSFO
2h 36m
Nonstop
1:00 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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Explore this route

All dates for this routeDec 26, 2026 → Jan 1, 2027Dec 28, 2026 → Jan 3, 2027
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Denver to San Francisco (SFO) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-27 → 2027-01-02Frontier AirlinesF93439 / F94310$204.602026-10-29T01:05:09Z
2026-12-27 → 2027-01-02Southwest AirlinesWN2104 / WN4578$334.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02United AirlinesUA2367 / UA301$365.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02Alaska Airlines / Southwest AirlinesAS1342 + AS1435 / WN4578$367.302026-10-29T01:05:09Z
2026-12-27 → 2027-01-02Delta Air LinesDL1553 + DL1088 / DL1088 + DL1667$427.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02Frontier AirlinesF91229 / F94310$204.602026-10-29T01:05:09Z
2026-12-27 → 2027-01-02Southwest AirlinesWN1792 / WN4578$334.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02United AirlinesUA2633 / UA301$365.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02United AirlinesUA1204 + UA4758 / UA301$378.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02United AirlinesUA430 + UA1375 / UA301$378.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02United AirlinesUA335 + UA5427 / UA301$378.802026-10-29T01:05:09Z
2026-12-27 → 2027-01-02United AirlinesUA1415 + UA5323 / UA301$378.802026-10-29T01:05:09Z

2026-12-27 → 2027-01-02 · $204.60

  • Frontier Airlines F93439: DEN 2026-12-27 22:29:00 → SFO 2026-12-28 00:20:00; nonstop; 171 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-01-02 21:23:00 → DEN 2027-01-03 00:58:00; nonstop; 155 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $334.80

  • Southwest Airlines WN2104: DEN 2026-12-27 08:35:00 → SFO 2026-12-27 10:20:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN4578: SFO 2027-01-02 05:50:00 → DEN 2027-01-02 09:20:00; nonstop; 150 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $365.80

  • United Airlines UA2367: DEN 2026-12-27 05:00:00 → SFO 2026-12-27 06:48:00; nonstop; 168 minutes. Local airport times.
  • United Airlines UA301: SFO 2027-01-02 21:24:00 → DEN 2027-01-03 01:00:00; nonstop; 156 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $367.30

  • Alaska Airlines AS1342 / AS1435: DEN 2026-12-27 13:54:00 → SFO 2026-12-27 18:06:00; 1 stop(s) via SAN; 312 minutes. Local airport times.
    • AS1342: DEN 2026-12-27 13:54:00 → SAN 2026-12-27 15:25:00; layover at SAN: 60 minutes.
    • AS1435: SAN 2026-12-27 16:25:00 → SFO 2026-12-27 18:06:00.
  • Southwest Airlines WN4578: SFO 2027-01-02 05:50:00 → DEN 2027-01-02 09:20:00; nonstop; 150 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $427.80

  • Delta Air Lines DL1553 / DL1088: DEN 2026-12-27 12:29:00 → SFO 2026-12-27 16:14:00; 1 stop(s) via SLC; 285 minutes. Local airport times.
    • DL1553: DEN 2026-12-27 12:29:00 → SLC 2026-12-27 14:06:00; layover at SLC: 64 minutes.
    • DL1088: SLC 2026-12-27 15:10:00 → SFO 2026-12-27 16:14:00.
  • Delta Air Lines DL1088 / DL1667: SFO 2027-01-02 17:15:00 → DEN 2027-01-02 23:09:00; 1 stop(s) via SLC; 294 minutes. Local airport times.
    • DL1088: SFO 2027-01-02 17:15:00 → SLC 2027-01-02 20:05:00; layover at SLC: 90 minutes.
    • DL1667: SLC 2027-01-02 21:35:00 → DEN 2027-01-02 23:09:00.

2026-12-27 → 2027-01-02 · $204.60

  • Frontier Airlines F91229: DEN 2026-12-27 08:35:00 → SFO 2026-12-27 10:28:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-01-02 21:23:00 → DEN 2027-01-03 00:58:00; nonstop; 155 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $334.80

  • Southwest Airlines WN1792: DEN 2026-12-27 12:40:00 → SFO 2026-12-27 14:25:00; nonstop; 165 minutes. Local airport times.
  • Southwest Airlines WN4578: SFO 2027-01-02 05:50:00 → DEN 2027-01-02 09:20:00; nonstop; 150 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $365.80

  • United Airlines UA2633: DEN 2026-12-27 15:37:00 → SFO 2026-12-27 17:24:00; nonstop; 167 minutes. Local airport times.
  • United Airlines UA301: SFO 2027-01-02 21:24:00 → DEN 2027-01-03 01:00:00; nonstop; 156 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $378.80

  • United Airlines UA1204 / UA4758: DEN 2026-12-27 11:22:00 → SFO 2026-12-27 15:21:00; 1 stop(s) via MRY; 299 minutes. Local airport times.
    • UA1204: DEN 2026-12-27 11:22:00 → MRY 2026-12-27 13:03:00; layover at MRY: 82 minutes.
    • UA4758: MRY 2026-12-27 14:25:00 → SFO 2026-12-27 15:21:00.
  • United Airlines UA301: SFO 2027-01-02 21:24:00 → DEN 2027-01-03 01:00:00; nonstop; 156 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $378.80

  • United Airlines UA430 / UA1375: DEN 2026-12-27 11:15:00 → SFO 2026-12-27 15:05:00; 1 stop(s) via ONT; 290 minutes. Local airport times.
    • UA430: DEN 2026-12-27 11:15:00 → ONT 2026-12-27 12:33:00; layover at ONT: 62 minutes.
    • UA1375: ONT 2026-12-27 13:35:00 → SFO 2026-12-27 15:05:00.
  • United Airlines UA301: SFO 2027-01-02 21:24:00 → DEN 2027-01-03 01:00:00; nonstop; 156 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $378.80

  • United Airlines UA335 / UA5427: DEN 2026-12-27 11:25:00 → SFO 2026-12-27 15:27:00; 1 stop(s) via FAT; 302 minutes. Local airport times.
    • UA335: DEN 2026-12-27 11:25:00 → FAT 2026-12-27 13:01:00; layover at FAT: 74 minutes.
    • UA5427: FAT 2026-12-27 14:15:00 → SFO 2026-12-27 15:27:00.
  • United Airlines UA301: SFO 2027-01-02 21:24:00 → DEN 2027-01-03 01:00:00; nonstop; 156 minutes. Local airport times.

2026-12-27 → 2027-01-02 · $378.80

  • United Airlines UA1415 / UA5323: DEN 2026-12-27 11:16:00 → SFO 2026-12-27 15:29:00; 1 stop(s) via SMF; 313 minutes. Local airport times.
    • UA1415: DEN 2026-12-27 11:16:00 → SMF 2026-12-27 13:01:00; layover at SMF: 74 minutes.
    • UA5323: SMF 2026-12-27 14:15:00 → SFO 2026-12-27 15:29:00.
  • United Airlines UA301: SFO 2027-01-02 21:24:00 → DEN 2027-01-03 01:00:00; nonstop; 156 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Denver (DEN) to San Francisco (SFO) · Dec 27, 2026 · return Jan 2, 2027: 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.
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  • 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 Francisco (SFO) 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.