Cheap flights from Phoenix (PHX)

American Airlines and Southwest hub at the heart of the Sun Belt

Phoenix Sky Harbor sits about 6 km east of downtown Phoenix and is one of the busiest airports in the U.S. American Airlines runs a major hub here, with Southwest operating its largest focus city. Delta, United, Alaska, Frontier and Spirit add competition. International service includes London, Frankfurt, Toronto and a deep network across Mexico. The airport is famous for its location inside city limits and convenient PHX Sky Train.

Why search this airport on Flightmussy

Airlines flying from Phoenix (PHX)

Major carriers: American, Southwest, Delta, United, Alaska Airlines. Low-cost carriers: Southwest, Frontier, Spirit, JetBlue.

Popular destinations from Phoenix (PHX)

Frequently asked questions

What is the cheapest month to fly from Phoenix?
Mid-August through September is the cheapest stretch at PHX — the desert summer dip when leisure demand collapses. A second softer period runs late January through February. Flightmussy's 12-month fare heatmap pinpoints the cheapest week, which can be 35% below winter-peak fares.
Which airlines fly out of PHX?
American Airlines runs a hub and Southwest operates a major focus base. Add Delta, United, Alaska, JetBlue, Frontier, Spirit, British Airways, Condor, Air Canada and Aeromexico. Flightmussy compares every operator in one no-signup search rather than hiding LCC fares behind separate filters.
Should I fly out of PHX or AZA?
PHX has by far the most options, while AZA (Phoenix-Mesa Gateway) is a small Allegiant-dominated airport in the East Valley with limited but cheap leisure routes. Flightmussy's multi-airport origin filter covers both in one search so you can compare fare and drive time.
Are there direct flights from PHX to London?
Yes — British Airways operates a daily nonstop to London Heathrow, and American Airlines adds seasonal frequencies. Condor flies to Frankfurt seasonally. Flightmussy compares all transatlantic options side-by-side and the 12-month heatmap surfaces the cheapest week of the year.

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Flightmussy runs its own 12-month forward fare scans across thousands of routes worldwide and publishes the data openly. Read the cheapest month to fly almost anywhere → — a global study of when fares are lowest — or browse the cheapest destinations from a city:

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