Bangkok-Siem Reap Flights: How to Find Cheap Fares (2026)

Among the short-haul routes out of Bangkok, Bangkok-Siem Reap is one of the most overlooked by Thai travelers — even though the flight time is shorter than Vietnam or Laos, and the destination has a UNESCO World Heritage temple complex less than half an hour from downtown. The main reason most people haven't been is simply not realizing direct flights exist.

How long is the direct Bangkok-Siem Reap flight

A direct flight from Bangkok to Siem Reap Angkor Airport takes only about 1 hour 5 minutes to 1 hour 15 minutes — shorter than routes to Vietnam or Myanmar that a lot of travelers are more used to, since the actual distance is closer than most people assume. With a flight time this short, even a 2-3 day weekend trip is worth the travel time.

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Which airlines fly this route

Unlike popular routes such as Tokyo or Singapore, where multiple carriers compete for passengers, Bangkok-Siem Reap has noticeably fewer airline options. That means fares don't swing as wildly as they do on more competitive routes — a plus for predictability, but a minus if seats sell out and there's no backup carrier to fall back on. If your travel dates fall on a holiday or long weekend, book earlier than you would for other routes.

How far ahead should you book

With a limited number of flights per day, booking around 6-8 weeks ahead tends to get the best fares on this route. That's different from neighboring routes with more frequent flights, where booking closer to departure is still somewhat viable. On the Siem Reap route, waiting until close to your travel date usually means a steeper price jump than you'd expect, especially around holidays shared by both Thailand and Cambodia.

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When fares tend to drop

Siem Reap's best weather falls roughly November through February, the peak season when travelers from around the world arrive to see Angkor Wat, pushing fares higher than usual. March through May runs hot, and the rainy stretch from June to October sees a clear drop in visitor numbers. Fares during these off-peak windows tend to be noticeably cheaper — and Siem Reap's rain usually comes in short afternoon bursts, much like Thailand, rather than ruining a full day of sightseeing the way many travelers assume.

Once you land in Siem Reap, where to go first

The newer Siem Reap Angkor Airport sits noticeably farther from downtown than the old airport did, with the ride into town taking roughly 45 minutes to an hour by taxi or hotel transfer — quite different from before, when the old airport was just a few minutes from the center. Budget extra time and arrange a hotel pickup in advance, especially for late-night arrivals, since airport taxis on hand may be more limited than you'd expect.

How close are Angkor Wat and the other temples

Angkor Wat sits only about 20-30 minutes from downtown Siem Reap by tuk-tuk or taxi, making it easy to plan an early sunrise visit and still be back at your hotel by mid-afternoon — no need to leave at 4am like some far-flung day trips require. Other temples in the Angkor complex, like Bayon or Ta Prohm, sit at similar distances. Many visitors hire a tuk-tuk driver for the full day to loop through several temples in one trip, which works out cheaper than calling a ride for each stop if you're planning a full day of sightseeing.

Getting ready to fly to Siem Reap

Cambodia runs on the US dollar alongside the local riel for everyday transactions — most shops and hotels in tourist areas already accept dollars, though it's worth carrying some small local currency for shops outside the main tourist zones. For visa requirements and entry documents, always check the latest conditions with the embassy or official government site before you travel, since rules can change without much notice.

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Compare real-time fares on the Bangkok-Siem Reap route — tap Search flights to check schedules and prices before booking through Trip.com.