AirHint found the following cheapest return flights from Houston (HOU) to Chicago (MDW) in March 2026 (see full year).
Return flights
| 13 Mar - 20 Mar | Frontier Airlines | direct | |
| 09 Mar - 12 Mar | Frontier Airlines | ||
| 26 Mar - 31 Mar | Southwest Airlines | direct | |
| 26 Mar - 29 Mar | Delta | ||
| 12 Mar - 15 Mar | Southwest Airlines | direct |
Also check the deals for one-way flights from Houston to Chicago in March.
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