Cheap flights from Phoenix-Mesa Gateway Airport from $54

Our data suggests that currently, the cheapest flights from Phoenix-Mesa Gateway Airport are being offered by Frontier, Allegiant Air, and Alaska Airlines. For example, Frontier flights from Phoenix-Mesa Gateway Airport to San Diego, start at $41, Allegiant Air flights from Phoenix-Mesa Gateway Airport to Omaha cost around $74, and Alaska Airlines flights from Phoenix-Mesa Gateway Airport to Portland are around $78.

Currently, the cheapest flight from Phoenix-Mesa Gateway Airport found by our users is for $57 to Kalispell. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $392 to travel from Phoenix-Mesa Gateway Airport to Kalispell.

Airlines including Allegiant Air, Frontier and Alaska Airlines frequently fly from Phoenix-Mesa Gateway Airport. You can view other airlines by performing a quick search in the form above.

Prices for flights from Phoenix-Mesa Gateway Airport were last updated today.

There are 4 operators available for flights from Phoenix-Mesa Gateway Airport as of September 2026.

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix-Mesa Gateway Airport.

The necessary travel and health documents for your Phoenix-Mesa Gateway Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.