AirHint found the following cheapest return flights from Houston (IAH) to Waterloo (YKF) in July 2025 (see full year).

Return flights

22 Jul - 29 Jul	Spirit Airlines
16 Jul - 30 Jul	WestJet
15 Jul - 17 Jul	WestJet
21 Jul - 06 Aug	WestJet
10 Jul - 15 Jul	WestJet
18 Jul - 23 Jul	WestJet
10 Jul - 31 Jul	WestJet
03 Jul - 08 Jul	WestJet
04 Jul - 08 Jul	WestJet
14 Jul - 21 Jul	WestJet
04 Jul - 07 Jul	WestJet

Also check the deals for one-way flights from Houston to Waterloo in July.

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 Waterloo in July from $382

Return flights