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Route overview: San Juan to Denver (DEN) flight deals

San Juan → Denver

Dec 22, 2026 · choose your return date

SJU → DEN1 adulteconomyOne way and round trips

30 flight options · 3 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.

December 2026

Dec 22, 2026 · One wayFrontier AirlinesUp to 1 stop each way$252.00 Dec 22, 2026 · One wayUnited AirlinesNonstop$469.00 Dec 22, 2026 – Dec 23, 2026 · 1 nightFrontier AirlinesUp to 1 stop each way$462.00 Dec 22, 2026 – Dec 23, 2026 · 1 nightUnited AirlinesNonstop$854.00 Dec 22, 2026 – Dec 24, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$462.00 Dec 22, 2026 – Dec 24, 2026 · 2 nightsSouthwest AirlinesUp to 1 stop each way$721.00 Dec 22, 2026 – Dec 25, 2026 · 3 nightsFrontier AirlinesUp to 1 stop each way$462.00 Dec 22, 2026 – Dec 25, 2026 · 3 nightsUnited AirlinesNonstop$854.00 Dec 22, 2026 – Dec 26, 2026 · 4 nightsFrontier AirlinesUp to 1 stop each way$462.00 Dec 22, 2026 – Dec 26, 2026 · 4 nightsUnited AirlinesNonstop$854.00 Dec 22, 2026 – Dec 27, 2026 · 5 nightsFrontier AirlinesUp to 1 stop each way$462.00 Dec 22, 2026 – Dec 27, 2026 · 5 nightsUnited AirlinesNonstop$854.00 Dec 22, 2026 – Dec 28, 2026 · 6 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Dec 28, 2026 · 6 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Dec 29, 2026 · 7 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Dec 29, 2026 · 7 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Dec 30, 2026 · 8 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Dec 30, 2026 · 8 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Dec 31, 2026 · 9 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Dec 31, 2026 · 9 nightsSouthwest AirlinesUp to 1 stop each way$708.13 Dec 22, 2026 – Jan 1, 2027 · 10 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Jan 1, 2027 · 10 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Jan 2, 2027 · 11 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Jan 2, 2027 · 11 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Jan 3, 2027 · 12 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Jan 3, 2027 · 12 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Jan 4, 2027 · 13 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Jan 4, 2027 · 13 nightsUnited AirlinesNonstop$838.75 Dec 22, 2026 – Jan 5, 2027 · 14 nightsFrontier AirlinesUp to 1 stop each way$453.75 Dec 22, 2026 – Jan 5, 2027 · 14 nightsUnited AirlinesNonstop$838.75

Flights for your trip

  1. Tue, Dec 22 · One way

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN

    One-way total · 1 adult · Taxes included

  2. Tue, Dec 22 · One way

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN

    One-way total · 1 adult · Taxes included

  3. Tue, Dec 22 – Wed, Dec 23

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  4. Tue, Dec 22 – Wed, Dec 23

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    9:46 amDEN
    5h 39m
    Nonstop
    6:25 pmSJU

    Round-trip total · 1 adult · Taxes included

  5. Tue, Dec 22 – Thu, Dec 24

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  6. Tue, Dec 22 – Thu, Dec 24

    Southwest Airlines
    5:35 amSJU
    9h 20m
    MCO · 2h
    11:55 amDEN
    Southwest Airlines
    1:35 pmDEN
    7h 45m
    FLL · 1h 20m
    12:20 am+1SJU

    Round-trip total · 1 adult · Taxes included

  7. Tue, Dec 22 – Fri, Dec 25

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  8. Tue, Dec 22 – Fri, Dec 25

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  9. Tue, Dec 22 – Sat, Dec 26

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  10. Tue, Dec 22 – Sat, Dec 26

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  11. Tue, Dec 22 – Mon, Dec 28

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    10:43 amDEN
    8h 37m
    CLT · 1h 46m
    10:20 pmSJU

    Round-trip total · 1 adult · Taxes included

  12. Tue, Dec 22 – Mon, Dec 28

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  13. Tue, Dec 22 – Tue, Dec 29

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  14. Tue, Dec 22 – Tue, Dec 29

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  15. Tue, Dec 22 – Wed, Dec 30

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  16. Tue, Dec 22 – Wed, Dec 30

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    9:46 amDEN
    5h 39m
    Nonstop
    6:25 pmSJU

    Round-trip total · 1 adult · Taxes included

  17. Tue, Dec 22 – Fri, Jan 1

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  18. Tue, Dec 22 – Fri, Jan 1

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  19. Tue, Dec 22 – Sat, Jan 2

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  20. Tue, Dec 22 – Sat, Jan 2

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  21. Tue, Dec 22 – Sun, Jan 3

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    10:43 amDEN
    8h 37m
    CLT · 1h 46m
    10:20 pmSJU

    Round-trip total · 1 adult · Taxes included

  22. Tue, Dec 22 – Sun, Jan 3

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

  23. Tue, Dec 22 – Tue, Jan 5

    Frontier Airlines
    2:24 pmSJU
    10h 33m
    ATL · 2h 25m
    9:57 pmDEN
    Frontier Airlines
    3:34 pmDEN
    8h 15m
    MIA · 1h 48m
    2:49 am+1SJU

    Round-trip total · 1 adult · Taxes included

  24. Tue, Dec 22 – Tue, Jan 5

    United Airlines
    2:21 pmSJU
    6h 46m
    Nonstop
    6:07 pmDEN
    United Airlines
    8:45 pmDEN
    5h 36m
    Nonstop
    5:21 am+1SJU

    Round-trip total · 1 adult · Taxes included

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1 of 24

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SJU ⇄ DEN

Economy

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Explore this route

All dates for this routeDec 21, 2026 · Return optionsDec 23, 2026 · Return optionsHotels in Denver with Axel
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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)
2026-12-22 · one wayUnited AirlinesUA1368Axel-exclusive $469.002026-10-29T01:23:02Z
2026-12-22 · one wayFrontier AirlinesF92081 + F93599Axel-exclusive $252.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-23United AirlinesUA1368 / UA1339Axel-exclusive $854.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-23Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $462.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-24Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $462.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-24Southwest AirlinesWN4666 + WN1785 / WN4488 + WN1192Axel-exclusive $721.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-25United AirlinesUA1368 / UA1439Axel-exclusive $854.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-25Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $462.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-26United AirlinesUA1368 / UA1439Axel-exclusive $854.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-26Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $462.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-27United AirlinesUA1368 / UA1439Axel-exclusive $854.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-27Frontier AirlinesF92081 + F93599 / F91362 + F93004Axel-exclusive $462.002026-10-29T01:23:02Z
2026-12-22 → 2026-12-28United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-28Frontier AirlinesF92081 + F93599 / F91362 + F93004Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-29United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-29Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-30United AirlinesUA1368 / UA1339Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-30Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-31Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2026-12-31Southwest AirlinesWN4666 + WN1785 / WN4488 + WN1192Axel-exclusive $708.132026-10-29T01:23:02Z
2026-12-22 → 2027-01-01United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-01Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-02United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-02Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-03United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-03Frontier AirlinesF92081 + F93599 / F91362 + F93004Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-04United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-04Frontier AirlinesF92081 + F93599 / F91362 + F93004Axel-exclusive $453.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-05United AirlinesUA1368 / UA1439Axel-exclusive $838.752026-10-29T01:23:02Z
2026-12-22 → 2027-01-05Frontier AirlinesF92081 + F93599 / F91520 + F93378Axel-exclusive $453.752026-10-29T01:23:02Z

Route overview: San Juan to Denver (DEN) flight deals

2026-12-22 · one way · Axel-exclusive $252.00

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.

2026-12-22 · one way · Axel-exclusive $469.00

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.

2026-12-22 → 2026-12-23 · Axel-exclusive $462.00

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2026-12-23 15:34:00 → SJU 2026-12-24 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2026-12-23 15:34:00 → MIA 2026-12-23 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2026-12-23 23:09:00 → SJU 2026-12-24 02:49:00.

2026-12-22 → 2026-12-23 · Axel-exclusive $854.00

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1339: DEN 2026-12-23 09:46:00 → SJU 2026-12-23 18:25:00; nonstop; 339 minutes. Local airport times.

2026-12-22 → 2026-12-24 · Axel-exclusive $462.00

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2026-12-24 15:34:00 → SJU 2026-12-25 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2026-12-24 15:34:00 → MIA 2026-12-24 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2026-12-24 23:09:00 → SJU 2026-12-25 02:49:00.

2026-12-22 → 2026-12-24 · Axel-exclusive $721.00

  • Southwest Airlines WN4666 / WN1785: SJU 2026-12-22 05:35:00 → DEN 2026-12-22 11:55:00; 1 stop(s) via MCO; 560 minutes. Local airport times.
    • WN4666: SJU 2026-12-22 05:35:00 → MCO 2026-12-22 07:45:00; layover at MCO: 120 minutes.
    • WN1785: MCO 2026-12-22 09:45:00 → DEN 2026-12-22 11:55:00.
  • Southwest Airlines WN4488 / WN1192: DEN 2026-12-24 13:35:00 → SJU 2026-12-25 00:20:00; 1 stop(s) via FLL; 465 minutes. Local airport times.
    • WN4488: DEN 2026-12-24 13:35:00 → FLL 2026-12-24 19:15:00; layover at FLL: 80 minutes.
    • WN1192: FLL 2026-12-24 20:35:00 → SJU 2026-12-25 00:20:00.

2026-12-22 → 2026-12-25 · Axel-exclusive $462.00

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2026-12-25 15:34:00 → SJU 2026-12-26 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2026-12-25 15:34:00 → MIA 2026-12-25 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2026-12-25 23:09:00 → SJU 2026-12-26 02:49:00.

2026-12-22 → 2026-12-25 · Axel-exclusive $854.00

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2026-12-25 20:45:00 → SJU 2026-12-26 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2026-12-26 · Axel-exclusive $462.00

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2026-12-26 15:34:00 → SJU 2026-12-27 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2026-12-26 15:34:00 → MIA 2026-12-26 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2026-12-26 23:09:00 → SJU 2026-12-27 02:49:00.

2026-12-22 → 2026-12-26 · Axel-exclusive $854.00

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2026-12-26 20:45:00 → SJU 2026-12-27 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2026-12-28 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91362 / F93004: DEN 2026-12-28 10:43:00 → SJU 2026-12-28 22:20:00; 1 stop(s) via CLT; 517 minutes. Local airport times.
    • F91362: DEN 2026-12-28 10:43:00 → CLT 2026-12-28 15:56:00; layover at CLT: 106 minutes.
    • F93004: CLT 2026-12-28 17:42:00 → SJU 2026-12-28 22:20:00.

2026-12-22 → 2026-12-28 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2026-12-28 20:45:00 → SJU 2026-12-29 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2026-12-29 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2026-12-29 15:34:00 → SJU 2026-12-30 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2026-12-29 15:34:00 → MIA 2026-12-29 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2026-12-29 23:09:00 → SJU 2026-12-30 02:49:00.

2026-12-22 → 2026-12-29 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2026-12-29 20:45:00 → SJU 2026-12-30 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2026-12-30 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2026-12-30 15:34:00 → SJU 2026-12-31 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2026-12-30 15:34:00 → MIA 2026-12-30 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2026-12-30 23:09:00 → SJU 2026-12-31 02:49:00.

2026-12-22 → 2026-12-30 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1339: DEN 2026-12-30 09:46:00 → SJU 2026-12-30 18:25:00; nonstop; 339 minutes. Local airport times.

2026-12-22 → 2027-01-01 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2027-01-01 15:34:00 → SJU 2027-01-02 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2027-01-01 15:34:00 → MIA 2027-01-01 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2027-01-01 23:09:00 → SJU 2027-01-02 02:49:00.

2026-12-22 → 2027-01-01 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2027-01-01 20:45:00 → SJU 2027-01-02 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2027-01-02 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2027-01-02 15:34:00 → SJU 2027-01-03 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2027-01-02 15:34:00 → MIA 2027-01-02 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2027-01-02 23:09:00 → SJU 2027-01-03 02:49:00.

2026-12-22 → 2027-01-02 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2027-01-02 20:45:00 → SJU 2027-01-03 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2027-01-03 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91362 / F93004: DEN 2027-01-03 10:43:00 → SJU 2027-01-03 22:20:00; 1 stop(s) via CLT; 517 minutes. Local airport times.
    • F91362: DEN 2027-01-03 10:43:00 → CLT 2027-01-03 15:56:00; layover at CLT: 106 minutes.
    • F93004: CLT 2027-01-03 17:42:00 → SJU 2027-01-03 22:20:00.

2026-12-22 → 2027-01-03 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2027-01-03 20:45:00 → SJU 2027-01-04 05:21:00; nonstop; 336 minutes. Local airport times.

2026-12-22 → 2027-01-05 · Axel-exclusive $453.75

  • Frontier Airlines F92081 / F93599: SJU 2026-12-22 14:24:00 → DEN 2026-12-22 21:57:00; 1 stop(s) via ATL; 633 minutes. Local airport times.
    • F92081: SJU 2026-12-22 14:24:00 → ATL 2026-12-22 17:53:00; layover at ATL: 145 minutes.
    • F93599: ATL 2026-12-22 20:18:00 → DEN 2026-12-22 21:57:00.
  • Frontier Airlines F91520 / F93378: DEN 2027-01-05 15:34:00 → SJU 2027-01-06 02:49:00; 1 stop(s) via MIA; 495 minutes. Local airport times.
    • F91520: DEN 2027-01-05 15:34:00 → MIA 2027-01-05 21:21:00; layover at MIA: 108 minutes.
    • F93378: MIA 2027-01-05 23:09:00 → SJU 2027-01-06 02:49:00.

2026-12-22 → 2027-01-05 · Axel-exclusive $838.75

  • United Airlines UA1368: SJU 2026-12-22 14:21:00 → DEN 2026-12-22 18:07:00; nonstop; 406 minutes. Local airport times.
  • United Airlines UA1439: DEN 2027-01-05 20:45:00 → SJU 2027-01-06 05:21:00; nonstop; 336 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: San Juan (SJU) to Denver (DEN) · Dec 22, 2026 · 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 San Juan to Denver (DEN) 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.