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

Denver → San Francisco

Feb 4, 2027 · choose your return date

DEN → SFO1 adulteconomyOne way and round trips

30 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

February 2027

Feb 4, 2027 · One wayFrontier AirlinesNonstop$80.75 Feb 4, 2027 · One waySouthwest AirlinesNonstop$133.00 Feb 4, 2027 – Feb 5, 2027 · 1 nightFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 5, 2027 · 1 nightSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 6, 2027 · 2 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 6, 2027 · 2 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 7, 2027 · 3 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 7, 2027 · 3 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 8, 2027 · 4 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 8, 2027 · 4 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 9, 2027 · 5 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 9, 2027 · 5 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 10, 2027 · 6 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 10, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$261.25 Feb 4, 2027 – Feb 11, 2027 · 7 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 11, 2027 · 7 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 12, 2027 · 8 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 12, 2027 · 8 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 13, 2027 · 9 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 13, 2027 · 9 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 14, 2027 · 10 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 14, 2027 · 10 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 15, 2027 · 11 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 15, 2027 · 11 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 16, 2027 · 12 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 16, 2027 · 12 nightsSouthwest AirlinesNonstop$256.50 Feb 4, 2027 – Feb 17, 2027 · 13 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 17, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$261.25 Feb 4, 2027 – Feb 18, 2027 · 14 nightsFrontier AirlinesNonstop$156.76 Feb 4, 2027 – Feb 18, 2027 · 14 nightsSouthwest AirlinesNonstop$256.50

Flights for your trip

  1. Thu, Feb 4 · One way

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO

    One-way total · 1 adult · Taxes included

  2. Thu, Feb 4 · One way

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO

    One-way total · 1 adult · Taxes included

  3. Thu, Feb 4 – Fri, Feb 5

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    8:10 pmSFO
    2h 36m
    Nonstop
    11:46 pmDEN

    Round-trip total · 1 adult · Taxes included

  4. Thu, Feb 4 – Fri, Feb 5

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  5. Thu, Feb 4 – Sat, Feb 6

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    9:23 pmSFO
    2h 35m
    Nonstop
    12:58 am+1DEN

    Round-trip total · 1 adult · Taxes included

  6. Thu, Feb 4 – Sat, Feb 6

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    5:50 amSFO
    2h 30m
    Nonstop
    9:20 amDEN

    Round-trip total · 1 adult · Taxes included

  7. Thu, Feb 4 – Sun, Feb 7

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    9:23 pmSFO
    2h 35m
    Nonstop
    12:58 am+1DEN

    Round-trip total · 1 adult · Taxes included

  8. Thu, Feb 4 – Sun, Feb 7

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    2:20 pmSFO
    2h 40m
    Nonstop
    6:00 pmDEN

    Round-trip total · 1 adult · Taxes included

  9. Thu, Feb 4 – Mon, Feb 8

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    6:02 amSFO
    2h 38m
    Nonstop
    9:40 amDEN

    Round-trip total · 1 adult · Taxes included

  10. Thu, Feb 4 – Mon, Feb 8

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  11. Thu, Feb 4 – Wed, Feb 10

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    6:02 amSFO
    2h 38m
    Nonstop
    9:40 amDEN

    Round-trip total · 1 adult · Taxes included

  12. Thu, Feb 4 – Wed, Feb 10

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    6:10 amSFO
    4h 50m
    BUR · 1h 5m
    12:00 pmDEN

    Round-trip total · 1 adult · Taxes included

  13. Thu, Feb 4 – Thu, Feb 11

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    8:10 pmSFO
    2h 36m
    Nonstop
    11:46 pmDEN

    Round-trip total · 1 adult · Taxes included

  14. Thu, Feb 4 – Thu, Feb 11

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  15. Thu, Feb 4 – Fri, Feb 12

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    8:10 pmSFO
    2h 36m
    Nonstop
    11:46 pmDEN

    Round-trip total · 1 adult · Taxes included

  16. Thu, Feb 4 – Fri, Feb 12

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  17. Thu, Feb 4 – Sun, Feb 14

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    9:23 pmSFO
    2h 35m
    Nonstop
    12:58 am+1DEN

    Round-trip total · 1 adult · Taxes included

  18. Thu, Feb 4 – Sun, Feb 14

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    2:20 pmSFO
    2h 40m
    Nonstop
    6:00 pmDEN

    Round-trip total · 1 adult · Taxes included

  19. Thu, Feb 4 – Mon, Feb 15

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    6:02 amSFO
    2h 38m
    Nonstop
    9:40 amDEN

    Round-trip total · 1 adult · Taxes included

  20. Thu, Feb 4 – Mon, Feb 15

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  21. Thu, Feb 4 – Tue, Feb 16

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    9:23 pmSFO
    2h 35m
    Nonstop
    12:58 am+1DEN

    Round-trip total · 1 adult · Taxes included

  22. Thu, Feb 4 – Tue, Feb 16

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

  23. Thu, Feb 4 – Thu, Feb 18

    Frontier Airlines
    10:42 pmDEN
    2h 53m
    Nonstop
    12:35 am+1SFO
    Frontier Airlines
    8:10 pmSFO
    2h 36m
    Nonstop
    11:46 pmDEN

    Round-trip total · 1 adult · Taxes included

  24. Thu, Feb 4 – Thu, Feb 18

    Southwest Airlines
    8:40 amDEN
    2h 50m
    Nonstop
    10:30 amSFO
    Southwest Airlines
    8:00 amSFO
    2h 30m
    Nonstop
    11:30 amDEN

    Round-trip total · 1 adult · Taxes included

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1 of 24

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 routeFeb 3, 2027 · Return optionsFeb 5, 2027 · Return optionsHotels in San Francisco 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.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-02-04 · one wayFrontier AirlinesF93439Axel-exclusive $80.752026-10-29T01:05:09Z
2027-02-04 · one waySouthwest AirlinesWN2104Axel-exclusive $133.002026-10-29T01:05:09Z
2027-02-04 → 2027-02-05Frontier AirlinesF93439 / F93440Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-05Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-06Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-06Southwest AirlinesWN2104 / WN4578Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-07Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-07Southwest AirlinesWN2104 / WN3845Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-08Frontier AirlinesF93439 / F91230Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-08Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-09Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-09Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-10Frontier AirlinesF93439 / F91230Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-10Southwest AirlinesWN2104 / WN3839 + WN2776Axel-exclusive $261.252026-10-29T01:05:09Z
2027-02-04 → 2027-02-11Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-11Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-12Frontier AirlinesF93439 / F93440Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-12Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-13Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-13Southwest AirlinesWN2104 / WN4578Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-14Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-14Southwest AirlinesWN2104 / WN3845Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-15Frontier AirlinesF93439 / F91230Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-15Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-16Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-16Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z
2027-02-04 → 2027-02-17Frontier AirlinesF93439 / F91230Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-17Southwest AirlinesWN2104 / WN3839 + WN2776Axel-exclusive $261.252026-10-29T01:05:09Z
2027-02-04 → 2027-02-18Frontier AirlinesF93439 / F94310Axel-exclusive $156.762026-10-29T01:05:09Z
2027-02-04 → 2027-02-18Southwest AirlinesWN2104 / WN3428Axel-exclusive $256.502026-10-29T01:05:09Z

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

2027-02-04 · one way · Axel-exclusive $80.75

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.

2027-02-04 · one way · Axel-exclusive $133.00

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.

2027-02-04 → 2027-02-05 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F93440: SFO 2027-02-05 20:10:00 → DEN 2027-02-05 23:46:00; nonstop; 156 minutes. Local airport times.

2027-02-04 → 2027-02-05 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-05 08:00:00 → DEN 2027-02-05 11:30:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-06 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-02-06 21:23:00 → DEN 2027-02-07 00:58:00; nonstop; 155 minutes. Local airport times.

2027-02-04 → 2027-02-06 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN4578: SFO 2027-02-06 05:50:00 → DEN 2027-02-06 09:20:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-07 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-02-07 21:23:00 → DEN 2027-02-08 00:58:00; nonstop; 155 minutes. Local airport times.

2027-02-04 → 2027-02-07 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3845: SFO 2027-02-07 14:20:00 → DEN 2027-02-07 18:00:00; nonstop; 160 minutes. Local airport times.

2027-02-04 → 2027-02-08 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F91230: SFO 2027-02-08 06:02:00 → DEN 2027-02-08 09:40:00; nonstop; 158 minutes. Local airport times.

2027-02-04 → 2027-02-08 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-08 08:00:00 → DEN 2027-02-08 11:30:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-10 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F91230: SFO 2027-02-10 06:02:00 → DEN 2027-02-10 09:40:00; nonstop; 158 minutes. Local airport times.

2027-02-04 → 2027-02-10 · Axel-exclusive $261.25

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3839 / WN2776: SFO 2027-02-10 06:10:00 → DEN 2027-02-10 12:00:00; 1 stop(s) via BUR; 290 minutes. Local airport times.
    • WN3839: SFO 2027-02-10 06:10:00 → BUR 2027-02-10 07:35:00; layover at BUR: 65 minutes.
    • WN2776: BUR 2027-02-10 08:40:00 → DEN 2027-02-10 12:00:00.

2027-02-04 → 2027-02-11 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-02-11 20:10:00 → DEN 2027-02-11 23:46:00; nonstop; 156 minutes. Local airport times.

2027-02-04 → 2027-02-11 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-11 08:00:00 → DEN 2027-02-11 11:30:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-12 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F93440: SFO 2027-02-12 20:10:00 → DEN 2027-02-12 23:46:00; nonstop; 156 minutes. Local airport times.

2027-02-04 → 2027-02-12 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-12 08:00:00 → DEN 2027-02-12 11:30:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-14 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-02-14 21:23:00 → DEN 2027-02-15 00:58:00; nonstop; 155 minutes. Local airport times.

2027-02-04 → 2027-02-14 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3845: SFO 2027-02-14 14:20:00 → DEN 2027-02-14 18:00:00; nonstop; 160 minutes. Local airport times.

2027-02-04 → 2027-02-15 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F91230: SFO 2027-02-15 06:02:00 → DEN 2027-02-15 09:40:00; nonstop; 158 minutes. Local airport times.

2027-02-04 → 2027-02-15 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-15 08:00:00 → DEN 2027-02-15 11:30:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-16 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-02-16 21:23:00 → DEN 2027-02-17 00:58:00; nonstop; 155 minutes. Local airport times.

2027-02-04 → 2027-02-16 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-16 08:00:00 → DEN 2027-02-16 11:30:00; nonstop; 150 minutes. Local airport times.

2027-02-04 → 2027-02-18 · Axel-exclusive $156.76

  • Frontier Airlines F93439: DEN 2027-02-04 22:42:00 → SFO 2027-02-05 00:35:00; nonstop; 173 minutes. Local airport times.
  • Frontier Airlines F94310: SFO 2027-02-18 20:10:00 → DEN 2027-02-18 23:46:00; nonstop; 156 minutes. Local airport times.

2027-02-04 → 2027-02-18 · Axel-exclusive $256.50

  • Southwest Airlines WN2104: DEN 2027-02-04 08:40:00 → SFO 2027-02-04 10:30:00; nonstop; 170 minutes. Local airport times.
  • Southwest Airlines WN3428: SFO 2027-02-18 08:00:00 → DEN 2027-02-18 11:30:00; nonstop; 150 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Denver (DEN) to San Francisco (SFO) · Feb 4, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • 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 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.