AirHint found the following cheapest return flights from Chicago (MDW) to Monterrey (MTY) in January 2026 (see full year).
Return flights
| 30 Jan - 01 Feb | Frontier Airlines | ||
| 23 Jan - 17 Feb | Delta | ||
| 29 Jan - 01 Feb | Delta | ||
| 19 Jan - 25 Jan | Frontier Airlines | ||
| 19 Jan - 26 Jan | Aeromexico | ||
| 24 Jan - 18 Feb | Delta |
Also check the deals for one-way flights from Chicago to Monterrey in January.
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