St Louis to Phoenix $180 round-trip, incl. all taxes
It's not every day we see a holiday weekend fare being sold for less than what it typically might cost on a regular ho-hum non-holiday weekend! Our next lowest find for this route weighs in at $262. Quite a difference.
Seats are limited, of course. Only for Labor Day weekend!
All products and services mentioned on Airfarewatchdog are independently selected by our team of expert travelers. If you buy something through our links, we may earn an affiliate commission.