Travel with Axel,
get the best price.

Route overview: Houston to Denver (DEN) flight deals

Houston → Denver

Jun 19, 2027 · 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.

June 2027

Jun 19, 2027 · One wayFrontier AirlinesNonstop$85.00 Jun 19, 2027 · One wayAmerican AirlinesUp to 1 stop each way$185.00 Jun 19, 2027 – Jun 20, 2027 · 1 nightFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 20, 2027 · 1 nightAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 21, 2027 · 2 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 21, 2027 · 2 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 22, 2027 · 3 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 22, 2027 · 3 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 23, 2027 · 4 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 23, 2027 · 4 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 24, 2027 · 5 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 24, 2027 · 5 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 25, 2027 · 6 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 25, 2027 · 6 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 26, 2027 · 7 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 26, 2027 · 7 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 27, 2027 · 8 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 27, 2027 · 8 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 28, 2027 · 9 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 28, 2027 · 9 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 29, 2027 · 10 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 29, 2027 · 10 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jun 30, 2027 · 11 nightsFrontier AirlinesNonstop$160.00 Jun 19, 2027 – Jun 30, 2027 · 11 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$347.50 Jun 19, 2027 – Jul 1, 2027 · 12 nightsFrontier AirlinesNonstop$172.00 Jun 19, 2027 – Jul 1, 2027 · 12 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$373.75 Jun 19, 2027 – Jul 2, 2027 · 13 nightsFrontier AirlinesNonstop$172.00 Jun 19, 2027 – Jul 2, 2027 · 13 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$373.75 Jun 19, 2027 – Jul 3, 2027 · 14 nightsFrontier AirlinesNonstop$172.00 Jun 19, 2027 – Jul 3, 2027 · 14 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$373.75

Flights for your trip

  1. Sat, Jun 19 · One way

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

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sat, Jun 19 · One way

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

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sat, Jun 19 – Sun, Jun 20

    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

    Availability is checked when you select these flights.

  4. Sat, Jun 19 – Sun, Jun 20

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Sat, Jun 19 – Mon, Jun 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

    Availability is checked when you select these flights.

  6. Sat, Jun 19 – Mon, Jun 21

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Sat, Jun 19 – Tue, Jun 22

    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

    Availability is checked when you select these flights.

  8. Sat, Jun 19 – Tue, Jun 22

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    3:42 pmDEN
    2h 28m
    Nonstop
    7:10 pmIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Sat, Jun 19 – Wed, Jun 23

    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

    Availability is checked when you select these flights.

  10. Sat, Jun 19 – Wed, Jun 23

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Sat, Jun 19 – Fri, Jun 25

    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

    Availability is checked when you select these flights.

  12. Sat, Jun 19 – Fri, Jun 25

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Sat, Jun 19 – Sat, Jun 26

    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

    Availability is checked when you select these flights.

  14. Sat, Jun 19 – Sat, Jun 26

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Sat, Jun 19 – Sun, Jun 27

    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

    Availability is checked when you select these flights.

  16. Sat, Jun 19 – Sun, Jun 27

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Sat, Jun 19 – Tue, Jun 29

    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

    Availability is checked when you select these flights.

  18. Sat, Jun 19 – Tue, Jun 29

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    3:42 pmDEN
    2h 28m
    Nonstop
    7:10 pmIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Sat, Jun 19 – Wed, Jun 30

    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

    Availability is checked when you select these flights.

  20. Sat, Jun 19 – Wed, Jun 30

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Sat, Jun 19 – Thu, Jul 1

    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

    Availability is checked when you select these flights.

  22. Sat, Jun 19 – Thu, Jul 1

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    4:21 pmDEN
    2h 29m
    Nonstop
    7:50 pmIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Sat, Jun 19 – Sat, Jul 3

    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

    Availability is checked when you select these flights.

  24. Sat, Jun 19 – Sat, Jul 3

    American Airlines
    6:00 amIAH
    4h 49m
    DFW · 1h 1m
    9:49 amDEN
    United Airlines
    5:00 amDEN
    2h 27m
    Nonstop
    8:27 amIAH

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

IAH ⇄ DEN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Frontier Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeJun 18, 2027 · Return optionsJun 20, 2027 · Return optionsHotels in Denver 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)
2027-06-19 · one wayFrontier AirlinesF93229Axel-exclusive $85.002026-10-29T01:10:09Z
2027-06-19 · one wayAmerican AirlinesAA2551 + AA2357Axel-exclusive $185.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-20Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-20American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-21Frontier AirlinesF93229 / F92996Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-21American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-22Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-22American Airlines / United AirlinesAA2551 + AA2357 / UA1912Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-23Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-23American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-24Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-24American Airlines / United AirlinesAA2551 + AA2357 / UA588Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-25Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-25American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-26Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-26American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-27Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-27American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-28Frontier AirlinesF93229 / F92996Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-28American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-29Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-29American Airlines / United AirlinesAA2551 + AA2357 / UA1912Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-06-30Frontier AirlinesF93229 / F93206Axel-exclusive $160.002026-10-29T01:10:09Z
2027-06-19 → 2027-06-30American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $347.502026-10-29T01:10:09Z
2027-06-19 → 2027-07-01Frontier AirlinesF93229 / F93206Axel-exclusive $172.002026-10-29T01:10:09Z
2027-06-19 → 2027-07-01American Airlines / United AirlinesAA2551 + AA2357 / UA588Axel-exclusive $373.752026-10-29T01:10:09Z
2027-06-19 → 2027-07-02Frontier AirlinesF93229 / F93206Axel-exclusive $172.002026-10-29T01:10:09Z
2027-06-19 → 2027-07-02American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $373.752026-10-29T01:10:09Z
2027-06-19 → 2027-07-03Frontier AirlinesF93229 / F93206Axel-exclusive $172.002026-10-29T01:10:09Z
2027-06-19 → 2027-07-03American Airlines / United AirlinesAA2551 + AA2357 / UA320Axel-exclusive $373.752026-10-29T01:10:09Z

Route overview: Houston to Denver (DEN) flight deals

2027-06-19 · one way · Axel-exclusive $85.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.

2027-06-19 · one way · Axel-exclusive $185.00

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.

2027-06-19 → 2027-06-20 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-20 05:36:00 → IAH 2027-06-20 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-20 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-20 05:00:00 → IAH 2027-06-20 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-06-21 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F92996: DEN 2027-06-21 21:18:00 → IAH 2027-06-22 00:42:00; nonstop; 144 minutes. Local airport times.

2027-06-19 → 2027-06-21 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-21 05:00:00 → IAH 2027-06-21 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-06-22 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-22 05:36:00 → IAH 2027-06-22 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-22 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA1912: DEN 2027-06-22 15:42:00 → IAH 2027-06-22 19:10:00; nonstop; 148 minutes. Local airport times.

2027-06-19 → 2027-06-23 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-23 05:36:00 → IAH 2027-06-23 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-23 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-23 05:00:00 → IAH 2027-06-23 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-06-25 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-25 05:36:00 → IAH 2027-06-25 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-25 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-25 05:00:00 → IAH 2027-06-25 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-06-26 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-26 05:36:00 → IAH 2027-06-26 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-26 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-26 05:00:00 → IAH 2027-06-26 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-06-27 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-27 05:36:00 → IAH 2027-06-27 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-27 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-27 05:00:00 → IAH 2027-06-27 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-06-29 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-29 05:36:00 → IAH 2027-06-29 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-29 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA1912: DEN 2027-06-29 15:42:00 → IAH 2027-06-29 19:10:00; nonstop; 148 minutes. Local airport times.

2027-06-19 → 2027-06-30 · Axel-exclusive $160.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-06-30 05:36:00 → IAH 2027-06-30 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-06-30 · Axel-exclusive $347.50

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-06-30 05:00:00 → IAH 2027-06-30 08:27:00; nonstop; 147 minutes. Local airport times.

2027-06-19 → 2027-07-01 · Axel-exclusive $172.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-07-01 05:36:00 → IAH 2027-07-01 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-07-01 · Axel-exclusive $373.75

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA588: DEN 2027-07-01 16:21:00 → IAH 2027-07-01 19:50:00; nonstop; 149 minutes. Local airport times.

2027-06-19 → 2027-07-03 · Axel-exclusive $172.00

  • Frontier Airlines F93229: IAH 2027-06-19 06:26:00 → DEN 2027-06-19 08:05:00; nonstop; 159 minutes. Local airport times.
  • Frontier Airlines F93206: DEN 2027-07-03 05:36:00 → IAH 2027-07-03 09:14:00; nonstop; 158 minutes. Local airport times.

2027-06-19 → 2027-07-03 · Axel-exclusive $373.75

  • American Airlines AA2551 / AA2357: IAH 2027-06-19 06:00:00 → DEN 2027-06-19 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2551: IAH 2027-06-19 06:00:00 → DFW 2027-06-19 07:33:00; layover at DFW: 61 minutes.
    • AA2357: DFW 2027-06-19 08:34:00 → DEN 2027-06-19 09:49:00.
  • United Airlines UA320: DEN 2027-07-03 05:00:00 → IAH 2027-07-03 08:27:00; nonstop; 147 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Houston (IAH) to Denver (DEN) · Jun 19, 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 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.