AirHint found the following cheapest return flights from Houston (HOU) to Quito (UIO) in August 2025 (see full year).

Return flights

03 Aug - 06 Aug	Avianca
04 Aug - 11 Aug	Avianca
06 Aug - 03 Sep	Avianca
03 Aug - 27 Aug	Spirit Airlines
16 Aug - 23 Aug	Spirit Airlines
03 Aug - 26 Aug	Avianca
07 Aug - 12 Aug	Avianca
05 Aug - 12 Aug	Avianca
06 Aug - 03 Sep	United	direct
03 Aug - 27 Aug	United	direct
03 Aug - 26 Aug	United	direct
16 Aug - 23 Aug	United	direct

Also check the deals for one-way flights from Houston to Quito in August.

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 Quito in August from $502

Return flights