Fares on the Hanoi to Bangkok route vary noticeably by season and demand. Right now the lowest available price is €73 with Clickavia. Non-stop flights are available, making it a convenient option if you want to skip layovers. Booking further in advance typically unlocks lower prices, especially around school holidays and peak travel months. The calendar below maps out the cheapest and most expensive months so you can plan before committing to dates.
Prices to Bangkok are typically lowest in the shoulder months shown in the calendar above. Searching for mid-week flights and avoiding school holiday windows can meaningfully cut costs on this route. If you're open on destination, use the interactive map from Hanoi to compare Bangkok against nearby alternatives - you may find a cheaper fare to a similar destination.
Thailand's capital is one of the world's most visited cities - a vast, frenetic metropolis of ornate Buddhist temples, street food markets, rooftop bars, and hypermodern shopping malls existing in improbable proximity. Suvarnabhumi (BKK) is Southeast Asia's second busiest airport; Don Mueang (DMK) handles additional low-cost traffic.