Cheapest one-way flights from Phoenix to Bangkok in September from $336

AirHint found the following cheapest one-way flights from Phoenix (PHX) to Bangkok (BKK) in September 2025 (see full year).

One-Way flights

26 Sep Frontier Airlines
24 Sep Frontier Airlines
27 Sep Frontier Airlines
30 Sep Japan Airlines
28 Sep Delta

Also check the deals for return flights from Phoenix to Bangkok in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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