Cheapest one-way flights from New York to Bangkok in September from $361

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

One-Way flights

25 Sep Frontier Airlines
23 Sep Korean Air
30 Sep Korean Air
24 Sep Korean Air
22 Sep Korean Air
18 Sep Korean Air
11 Sep Korean Air
15 Sep Korean Air
10 Sep Korean Air
16 Sep Korean Air

Also check the deals for return flights from New York 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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