AirHint found the following cheapest return flights from Houston (HOU) to Denver (DEN) in May 2026 (see full year).

Return flights

11 May - 18 May	United	direct
12 May - 16 May	United	direct
23 May - 26 May	United	direct
09 May - 09 May	United	direct
30 May - 10 Jun	United	direct
18 May - 27 May	Southwest Airlines	direct
29 May - 03 Jun	United	direct
28 May - 31 May	United	direct
24 May - 27 May	United	direct
21 May - 23 May	United	direct
17 May - 22 May	United	direct
29 May - 31 May	United	direct

Also check the deals for one-way flights from Houston to Denver in May.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Houston to Denver in May from $198

Return flights