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Route overview: Houston to Denver (DEN) flight deals

Houston → Denver

Dec 20, 2026 · choose your return date

IAH → 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 20, 2026 · One wayFrontier AirlinesNonstop$91.00 Dec 20, 2026 · One wayAmerican AirlinesUp to 1 stop each way$231.00 Dec 20, 2026 – Dec 21, 2026 · 1 nightFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 21, 2026 · 1 nightAmerican Airlines / Frontier AirlinesUp to 1 stop each way$301.00 Dec 20, 2026 – Dec 22, 2026 · 2 nightsFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 22, 2026 · 2 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$301.00 Dec 20, 2026 – Dec 23, 2026 · 3 nightsFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 23, 2026 · 3 nightsUnited AirlinesNonstop$427.00 Dec 20, 2026 – Dec 24, 2026 · 4 nightsFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 24, 2026 · 4 nightsUnited AirlinesNonstop$427.00 Dec 20, 2026 – Dec 25, 2026 · 5 nightsFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 25, 2026 · 5 nightsUnited AirlinesNonstop$427.00 Dec 20, 2026 – Dec 26, 2026 · 6 nightsFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 26, 2026 · 6 nightsUnited AirlinesNonstop$427.00 Dec 20, 2026 – Dec 27, 2026 · 7 nightsFrontier AirlinesNonstop$168.00 Dec 20, 2026 – Dec 27, 2026 · 7 nightsUnited AirlinesNonstop$427.00 Dec 20, 2026 – Dec 28, 2026 · 8 nightsFrontier AirlinesNonstop$165.00 Dec 20, 2026 – Dec 28, 2026 · 8 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$298.00 Dec 20, 2026 – Dec 29, 2026 · 9 nightsFrontier AirlinesNonstop$165.00 Dec 20, 2026 – Dec 29, 2026 · 9 nightsAmerican Airlines / Frontier AirlinesUp to 1 stop each way$298.00 Dec 20, 2026 – Dec 30, 2026 · 10 nightsFrontier AirlinesNonstop$165.00 Dec 20, 2026 – Dec 30, 2026 · 10 nightsUnited AirlinesNonstop$419.38 Dec 20, 2026 – Dec 31, 2026 · 11 nightsFrontier AirlinesNonstop$165.00 Dec 20, 2026 – Dec 31, 2026 · 11 nightsUnited AirlinesNonstop$419.38 Dec 20, 2026 – Jan 1, 2027 · 12 nightsFrontier AirlinesNonstop$160.80 Dec 20, 2026 – Jan 1, 2027 · 12 nightsUnited AirlinesNonstop$408.70 Dec 20, 2026 – Jan 2, 2027 · 13 nightsFrontier AirlinesNonstop$160.80 Dec 20, 2026 – Jan 2, 2027 · 13 nightsUnited AirlinesNonstop$408.70 Dec 20, 2026 – Jan 3, 2027 · 14 nightsFrontier AirlinesNonstop$160.80 Dec 20, 2026 – Jan 3, 2027 · 14 nightsUnited AirlinesNonstop$408.70

Flights for your trip

  1. Sun, Dec 20 · One way

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN

    One-way total · 1 adult · Taxes included

  2. Sun, Dec 20 · One way

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN

    One-way total · 1 adult · Taxes included

  3. Sun, Dec 20 – Mon, Dec 21

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  4. Sun, Dec 20 – Mon, Dec 21

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  5. Sun, Dec 20 – Tue, Dec 22

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  6. Sun, Dec 20 – Tue, Dec 22

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  7. Sun, Dec 20 – Wed, Dec 23

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    7:47 amDEN
    2h 30m
    Nonstop
    11:17 amIAH

    Round-trip total · 1 adult · Taxes included

  8. Sun, Dec 20 – Wed, Dec 23

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    8:53 pmDEN
    2h 22m
    Nonstop
    12:15 am+1IAH

    Round-trip total · 1 adult · Taxes included

  9. Sun, Dec 20 – Thu, Dec 24

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    5:36 amDEN
    2h 38m
    Nonstop
    9:14 amIAH

    Round-trip total · 1 adult · Taxes included

  10. Sun, Dec 20 – Thu, Dec 24

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    7:30 pmDEN
    2h 22m
    Nonstop
    10:52 pmIAH

    Round-trip total · 1 adult · Taxes included

  11. Sun, Dec 20 – Sat, Dec 26

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    8:59 pmDEN
    2h 23m
    Nonstop
    12:22 am+1IAH

    Round-trip total · 1 adult · Taxes included

  12. Sun, Dec 20 – Sat, Dec 26

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    8:53 pmDEN
    2h 22m
    Nonstop
    12:15 am+1IAH

    Round-trip total · 1 adult · Taxes included

  13. Sun, Dec 20 – Sun, Dec 27

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  14. Sun, Dec 20 – Sun, Dec 27

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    8:53 pmDEN
    2h 22m
    Nonstop
    12:15 am+1IAH

    Round-trip total · 1 adult · Taxes included

  15. Sun, Dec 20 – Mon, Dec 28

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  16. Sun, Dec 20 – Mon, Dec 28

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  17. Sun, Dec 20 – Wed, Dec 30

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    7:47 amDEN
    2h 30m
    Nonstop
    11:17 amIAH

    Round-trip total · 1 adult · Taxes included

  18. Sun, Dec 20 – Wed, Dec 30

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    8:53 pmDEN
    2h 22m
    Nonstop
    12:15 am+1IAH

    Round-trip total · 1 adult · Taxes included

  19. Sun, Dec 20 – Thu, Dec 31

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    5:36 amDEN
    2h 38m
    Nonstop
    9:14 amIAH

    Round-trip total · 1 adult · Taxes included

  20. Sun, Dec 20 – Thu, Dec 31

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    7:30 pmDEN
    2h 22m
    Nonstop
    10:52 pmIAH

    Round-trip total · 1 adult · Taxes included

  21. Sun, Dec 20 – Fri, Jan 1

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    8:59 pmDEN
    2h 23m
    Nonstop
    12:22 am+1IAH

    Round-trip total · 1 adult · Taxes included

  22. Sun, Dec 20 – Fri, Jan 1

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    8:53 pmDEN
    2h 22m
    Nonstop
    12:15 am+1IAH

    Round-trip total · 1 adult · Taxes included

  23. Sun, Dec 20 – Sun, Jan 3

    Frontier Airlines
    6:26 amIAH
    2h 39m
    Nonstop
    8:05 amDEN
    Frontier Airlines
    9:18 pmDEN
    2h 24m
    Nonstop
    12:42 am+1IAH

    Round-trip total · 1 adult · Taxes included

  24. Sun, Dec 20 – Sun, Jan 3

    United Airlines
    12:50 pmIAH
    2h 35m
    Nonstop
    2:25 pmDEN
    United Airlines
    8:53 pmDEN
    2h 22m
    Nonstop
    12:15 am+1IAH

    Round-trip total · 1 adult · Taxes included

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Make this trip yours

IAH ⇄ DEN

Economy

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Explore this route

All dates for this routeDec 19, 2026 · Return optionsDec 21, 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)
2026-12-20 · one wayFrontier AirlinesF93229Axel-exclusive $91.002026-10-29T01:10:09Z
2026-12-20 · one wayAmerican AirlinesAA2551 + AA2357Axel-exclusive $231.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-21Frontier AirlinesF93229 / F92996Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-21American Airlines / Frontier AirlinesAA2551 + AA2357 / F92996Axel-exclusive $301.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-22Frontier AirlinesF93229 / F92996Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-22American Airlines / Frontier AirlinesAA2551 + AA2357 / F92996Axel-exclusive $301.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-23Frontier AirlinesF93229 / F93206Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-23United AirlinesUA2168 / UA2419Axel-exclusive $427.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-24Frontier AirlinesF93229 / F93206Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-24United AirlinesUA2168 / UA475Axel-exclusive $427.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-25Frontier AirlinesF93229 / F92996Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-25United AirlinesUA2168 / UA2419Axel-exclusive $427.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-26Frontier AirlinesF93229 / F92996Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-26United AirlinesUA2168 / UA2419Axel-exclusive $427.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-27Frontier AirlinesF93229 / F92996Axel-exclusive $168.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-27United AirlinesUA2168 / UA2419Axel-exclusive $427.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-28Frontier AirlinesF93229 / F92996Axel-exclusive $165.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-28American Airlines / Frontier AirlinesAA2551 + AA2357 / F92996Axel-exclusive $298.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-29Frontier AirlinesF93229 / F92996Axel-exclusive $165.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-29American Airlines / Frontier AirlinesAA2551 + AA2357 / F92996Axel-exclusive $298.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-30Frontier AirlinesF93229 / F93206Axel-exclusive $165.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-30United AirlinesUA2168 / UA2419Axel-exclusive $419.382026-10-29T01:10:09Z
2026-12-20 → 2026-12-31Frontier AirlinesF93229 / F93206Axel-exclusive $165.002026-10-29T01:10:09Z
2026-12-20 → 2026-12-31United AirlinesUA2168 / UA475Axel-exclusive $419.382026-10-29T01:10:09Z
2026-12-20 → 2027-01-01Frontier AirlinesF93229 / F92996Axel-exclusive $160.802026-10-29T01:10:09Z
2026-12-20 → 2027-01-01United AirlinesUA2168 / UA2419Axel-exclusive $408.702026-10-29T01:10:09Z
2026-12-20 → 2027-01-02Frontier AirlinesF93229 / F92996Axel-exclusive $160.802026-10-29T01:10:09Z
2026-12-20 → 2027-01-02United AirlinesUA2168 / UA2419Axel-exclusive $408.702026-10-29T01:10:09Z
2026-12-20 → 2027-01-03Frontier AirlinesF93229 / F92996Axel-exclusive $160.802026-10-29T01:10:09Z
2026-12-20 → 2027-01-03United AirlinesUA2168 / UA2419Axel-exclusive $408.702026-10-29T01:10:09Z

Route overview: Houston to Denver (DEN) flight deals

2026-12-20 · one way · Axel-exclusive $91.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.

2026-12-20 · one way · Axel-exclusive $231.00

  • American Airlines AA2551 / AA2357: IAH 2026-12-20 06:00:00 → DEN 2026-12-20 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2026-12-20 06:00:00 → DFW 2026-12-20 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2026-12-20 08:34:00 → DEN 2026-12-20 09:49:00.

2026-12-20 → 2026-12-21 · Axel-exclusive $168.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2026-12-21 21:18:00 → IAH 2026-12-22 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $301.00

  • American Airlines AA2551 / AA2357: IAH 2026-12-20 06:00:00 → DEN 2026-12-20 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2026-12-20 06:00:00 → DFW 2026-12-20 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2026-12-20 08:34:00 → DEN 2026-12-20 09:49:00.
  • Frontier Airlines F92996: DEN 2026-12-21 21:18:00 → IAH 2026-12-22 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-22 · Axel-exclusive $168.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2026-12-22 21:18:00 → IAH 2026-12-23 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-22 · Axel-exclusive $301.00

  • American Airlines AA2551 / AA2357: IAH 2026-12-20 06:00:00 → DEN 2026-12-20 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2026-12-20 06:00:00 → DFW 2026-12-20 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2026-12-20 08:34:00 → DEN 2026-12-20 09:49:00.
  • Frontier Airlines F92996: DEN 2026-12-22 21:18:00 → IAH 2026-12-23 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-23 · Axel-exclusive $168.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2026-12-23 07:47:00 → IAH 2026-12-23 11:17:00; nonstop; 150 minutes. Local airport times.

2026-12-20 → 2026-12-23 · Axel-exclusive $427.00

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA2419: DEN 2026-12-23 20:53:00 → IAH 2026-12-24 00:15:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2026-12-24 · Axel-exclusive $168.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2026-12-24 05:36:00 → IAH 2026-12-24 09:14:00; nonstop; 158 minutes. Local airport times.

2026-12-20 → 2026-12-24 · Axel-exclusive $427.00

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA475: DEN 2026-12-24 19:30:00 → IAH 2026-12-24 22:52:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2026-12-26 · Axel-exclusive $168.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2026-12-26 20:59:00 → IAH 2026-12-27 00:22:00; nonstop; 143 minutes. Local airport times.

2026-12-20 → 2026-12-26 · Axel-exclusive $427.00

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA2419: DEN 2026-12-26 20:53:00 → IAH 2026-12-27 00:15:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2026-12-27 · Axel-exclusive $168.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2026-12-27 21:18:00 → IAH 2026-12-28 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-27 · Axel-exclusive $427.00

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA2419: DEN 2026-12-27 20:53:00 → IAH 2026-12-28 00:15:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2026-12-28 · Axel-exclusive $165.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2026-12-28 21:18:00 → IAH 2026-12-29 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-28 · Axel-exclusive $298.00

  • American Airlines AA2551 / AA2357: IAH 2026-12-20 06:00:00 → DEN 2026-12-20 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2026-12-20 06:00:00 → DFW 2026-12-20 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2026-12-20 08:34:00 → DEN 2026-12-20 09:49:00.
  • Frontier Airlines F92996: DEN 2026-12-28 21:18:00 → IAH 2026-12-29 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2026-12-30 · Axel-exclusive $165.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2026-12-30 07:47:00 → IAH 2026-12-30 11:17:00; nonstop; 150 minutes. Local airport times.

2026-12-20 → 2026-12-30 · Axel-exclusive $419.38

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA2419: DEN 2026-12-30 20:53:00 → IAH 2026-12-31 00:15:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2026-12-31 · Axel-exclusive $165.00

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2026-12-31 05:36:00 → IAH 2026-12-31 09:14:00; nonstop; 158 minutes. Local airport times.

2026-12-20 → 2026-12-31 · Axel-exclusive $419.38

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA475: DEN 2026-12-31 19:30:00 → IAH 2026-12-31 22:52:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2027-01-01 · Axel-exclusive $160.80

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2027-01-01 20:59:00 → IAH 2027-01-02 00:22:00; nonstop; 143 minutes. Local airport times.

2026-12-20 → 2027-01-01 · Axel-exclusive $408.70

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA2419: DEN 2027-01-01 20:53:00 → IAH 2027-01-02 00:15:00; nonstop; 142 minutes. Local airport times.

2026-12-20 → 2027-01-03 · Axel-exclusive $160.80

  • Frontier Airlines F93229: IAH 2026-12-20 06:26:00 → DEN 2026-12-20 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2027-01-03 21:18:00 → IAH 2027-01-04 00:42:00; nonstop; 144 minutes. Local airport times.

2026-12-20 → 2027-01-03 · Axel-exclusive $408.70

  • United Airlines UA2168: IAH 2026-12-20 12:50:00 → DEN 2026-12-20 14:25:00; nonstop; 155 minutes. Local airport times.
  • United Airlines UA2419: DEN 2027-01-03 20:53:00 → IAH 2027-01-04 00:15:00; nonstop; 142 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Houston (IAH) to Denver (DEN) · Dec 20, 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 Houston 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.