Flights Bangkok to Siem Reap (BKK-REP): Airlines, THB Fares

Bangkok to Siem Reap is a short, tourism-driven route — Siem Reap being the gateway town to the Angkor temple complex, one of Southeast Asia’s most visited sites. At around 21 flights a week and barely an hour in the air, it is an easy connection, carrying mostly visitors heading to Angkor, alongside regional and business travel.

Block time is about one hour. Demand on this route follows Cambodia’s tourism calendar closely, with the cooler, drier months drawing the largest numbers and firmest fares.

Corridor profile

Airlines & baggage

Airlines on this route

Three carriers fly BKK-REP: Thai Airways on the full-service side, with Thai AirAsia and Cambodia Angkor Air covering the route as well. Thai Airways includes checked baggage and a fuller cabin; Thai AirAsia prices the seat low and charges baggage and extras separately. On a one-hour hop, many travellers fly with cabin baggage only — compare the all-in cost once you have added whatever you need to check.

Fare trends

BKK-REP fares move with Cambodia’s tourism season. The cool, dry months are the busiest and dearest, and seats can firm up around the year-end peak — six to ten weeks of lead time is sensible for that window. Outside the season, fares ease and three to six weeks usually finds a good THB price. Travelling light keeps the cost down on a route this short.

Seasonality & best time to book

Bangkok–Siem Reap fares move with demand. The cheapest windows fall outside school holidays, Songkran and New Year; book 4–8 weeks ahead for normal dates.

About Siem Reap

Siem Reap is the town that serves the Angkor Archaeological Park — the vast complex of temples, including Angkor Wat, built by the Khmer Empire and now a UNESCO World Heritage Site. The town itself has grown around that traffic, with a wide range of places to stay, eat and rest between temple visits. For travellers from Bangkok it is a focused, accessible trip: a short flight, a world-significant site, and a town geared entirely to making the visit easy.

FAQ

Which airlines fly Bangkok to Siem Reap?

The BKK-REP route is operated by Thai AirAsia, Cambodia Angkor Air and Thai Airways. Compare baggage, alliances and fares in the table above.

How long and how often is the BKK-REP flight?

Block time is ~1.0h, with ~21 flights per week across all carriers.

When is BKK-REP cheapest to book?

Book 4–8 weeks ahead; avoid Songkran, school holidays and peak season to save 15–30%.

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Related

• BKK airport
• REP airport