Flights from Koh Samui to Siem Reap (USM to SAI)

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viaBangkok(BKK)

USM→BKK+1h 30mBKK→SAI

2h 30m

viaBangkok(DMK)

USM→DMK+1h 30mDMK→SAI

2h 32m

viaPhuket(HKT)

USM→HKT+1h 30mHKT→SAI

2h 50m

viaSingapore(SIN)

USM→SIN+1h 30mSIN→SAI

4h 15m

Frequently asked questions

Are there direct flights from Koh Samui to Siem Reap? Currently, there are no direct flights from USM to SAI. You may need to connect through another airport.

Related guides for this route

Sibling pages from across Flightmaps — fares, visa rules, country aggregations, and per-airline routes for Koh Samui → Siem Reap.

Try a nearby airport to Koh Samui

Flights to Siem Reap (SAI) from other airports within 350 km of Koh Samui. Often unlocks cheaper fares or better times.

KBV → SAI 201 km from USM Krabi → Siem Reap Thailand · 12 destinations HKT → SAI 251 km from USM Phuket → Siem Reap Thailand · 70 destinations HDY → SAI 293 km from USM Hat Yai → Siem Reap Thailand · 9 destinations

Or try a nearby airport to Siem Reap

Flights from Koh Samui (USM) to other airports within 350 km of Siem Reap.

USM → KTI 236 km from SAI Koh Samui → Phnom Penh Cambodia · 38 destinations USM → PKZ 258 km from SAI Koh Samui → Pakse Lao People's Democratic Republic · 5 destinations USM → KOS 316 km from SAI Koh Samui → Sihanoukville Cambodia · 10 destinations

Other flights from Koh Samui (USM)

Bangkok (BKK) Bangkok (DMK) Chengdu (TFU) Chiang Mai (CNX) Hong Kong (HKG) Krabi (KBV) Phuket (HKT) Singapore (SIN) All 9 destinations →

Other flights from Siem Reap (SAI)

Bangkok (BKK) Bangkok (DMK) Da Nang (DAD) Hanoi (HAN) Ho Chi Minh City (SGN) Kolkata (CCU) Kuala Lumpur (KUL) Kunming (KMG) All 14 destinations →

Flights from Koh Samui to Siem Reap (USM → SAI)