Find the best flight deals to Mexico — including fare sales, error fares, and weekly alerts for $150–$400 roundtrip from the US.
Best Months: May–November, January
Avg Price: $150–$400 roundtrip from the US
Top Airlines: Southwest, Volaris, Frontier, Spirit
Airports: CUN (Cancun), MEX (Mexico City), SJD (Cabo), PVR (Puerto Vallarta)
We find cheap flights every week — including error fares, flash sales, and deals you won't see anywhere else.
Budget carriers like Volaris, Frontier, and Spirit regularly offer roundtrip fares under $200 from southern US cities. Southwest also competes aggressively on Mexico routes with fares from $99 roundtrip during sales.
May through November (rainy season) offers the lowest fares, especially to beach destinations. January also sees deals after the holiday rush. Avoid December, Easter week, and spring break for the cheapest flights.
Yes, US citizens need a valid passport book to fly to Mexico. A passport card only works for land and sea crossings, not air travel. Make sure your passport is valid for the duration of your stay.