AirHint found the following cheapest return flights from Houston (IAH) to Chicago (MDW) in March 2026 (see full year).
Return flights
| 13 Mar - 20 Mar | Frontier Airlines | direct | |
| 18 Mar - 20 Mar | Frontier Airlines | ||
| 19 Mar - 22 Mar | Frontier Airlines | ||
| 14 Mar - 21 Mar | Frontier Airlines |
Also check the deals for one-way flights from Houston to Chicago in March.
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