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Phnom Penh to Siem Reap by bus or flight
Phnom Penh to Siem Reap
By bus: Giant Ibis, Larryta and other companies leave Phnom Penh through the day and overnight, about six hours to Siem Reap, from about USD 9 to USD 19 sold online for October 2026. Night sleepers arrive early in the morning. Flights from Techo International Airport (KTI) take under an hour, from about USD 88.
Phnom Penh to Siem Reap time and price
| Usual way | Bus or night sleeper bus |
|---|---|
| Typical time | About 6 h by bus; under 1 h flying |
| What it costs | Bus from about USD 9 |
| Where it arrives | Company terminals in central Siem Reap; Siem Reap Angkor International Airport (SAI) by air |
Leaving Phnom Penh
Most buses leave from their own company offices in central Phnom Penh, not from one bus station. Giant Ibis leaves from its terminal on Street 106, by the Night Market. Giant Ibis's night bus has no hotel pickup, so you make your own way there.
Arriving in Siem Reap
Giant Ibis ends at its terminal behind the Old Stadium, near Khmer Pub Street, where tuk-tuks wait. Other companies stop at their own offices in town, so check the drop-off on your ticket.
Flights land at Siem Reap Angkor International Airport (SAI), well outside town; the Siem Reap airport guide covers the shuttle bus and taxis.
Luggage, check-in and tickets
Giant Ibis's route page asks you to be there 30 minutes before departure and lists 20 kg of luggage; its general terms say 35 minutes and 25 kg. Go by what your ticket says. Its direct tickets are non-refundable but can be changed once with 24 hours' notice; a ticket bought through another seller follows that seller's conditions.
Siem Reap to Phnom Penh
By bus: the same companies run back from Siem Reap to Phnom Penh through the day and overnight, about six hours, with Giant Ibis at about USD 19 sold online for October 2026. Giant Ibis leaves from behind the Old Stadium and ends on Street 106 in central Phnom Penh.
Siem Reap to Phnom Penh time and price
| Usual way | Bus or night sleeper bus |
|---|---|
| Typical time | About 6 h |
| What it costs | Giant Ibis about USD 19 |
| Where it departs | Company terminals in central Siem Reap |
Leaving Siem Reap
Giant Ibis leaves from its terminal behind the Old Stadium, near Khmer Pub Street. On the day service its schedule mentions pickup from partner hotels; other companies board at their own offices.
Arriving in Phnom Penh
Giant Ibis arrives at its Street 106 terminal by the Night Market in central Phnom Penh. If you are flying out, Techo International Airport is about 20 km south of the centre, so leave time to get there.
Before you board
The day buses stop on the way; Giant Ibis's day schedule mentions a 30-minute break at Prey Pros. Wi-Fi on board can drop out in the countryside.
Six hours by road, day or night
Siem Reap is about 320 km north-west of Phnom Penh, and the bus takes about six hours. It is the usual way to go: for late October 2026, more than 250 departures by bus, van, taxi and air were on sale online for a single day.
Day or night. Day buses leave from early morning to early afternoon and arrive before dark. Night sleepers leave late in the evening and arrive around dawn. Giant Ibis's night bus has the fleet's only onboard toilet and makes no bathroom stops, only a short driver change in Kampong Thom. Its beds are 1.8 m long, with one 2 m bed at the back.
Vans are a little cheaper and sometimes quicker, but you have less room for bags and legs. The bus guide compares seats, sleepers and vans across Cambodia.
Flying takes under an hour, but you still have the drive out to Techo airport and in from Siem Reap's airport, so door to door it saves less time than it seems.
The boat. Cambodia River Express has sailed across the Tonle Sap at weekends while the water is high, 6 to 7 hours, and went boat-only in January 2026. No sailing was on sale for October 2026 and its website was offline, so confirm with the operator before planning on it; the ferry guide lists the river boats.
Phnom Penh to Siem Reap bus times
Giant Ibis timetable (operator):
- Phnom Penh to Siem Reap: 08:45, 09:45, 12:30; night 22:30, 23:00
- Siem Reap to Phnom Penh: 08:45, 09:45, 12:30; night 22:00, 22:30
Also on sale for October 2026:
- Larryta sleeper buses: 07:35, 10:10 and 13:10, about 6 hours
- Vans (Larryta, Cambolink21 and others): roughly hourly in the morning
- Overnight buses (Virak Buntham, Olongpich and others): from around midnight, arriving early morning
Bus and flight prices to Siem Reap
Sold online for late October 2026, one adult:
- Buses: from about USD 9
- Vans: from about USD 10
- Larryta sleeper: about USD 18
- Giant Ibis day bus: about USD 17 to 19
- Giant Ibis night bus: about USD 21
- Private taxi (up to 4 people): from about USD 70 per car
- Flights: from about USD 88
Prices change with the date and the seat, so check yours when you book.
Arriving in Siem Reap and going on
Most visitors come for Angkor. The Angkor Wat guide covers tickets and getting to the temples. For tuk-tuks and ride apps around town, see the tuk-tuk guide.
From Siem Reap, buses go on to Battambang in about three hours. The Siem Reap guide has the other connections, and the Phnom Penh guide has the onward routes from the capital, including the coast and Kampot.
Phnom Penh to Siem Reap: what people ask
How long is the bus from Phnom Penh to Siem Reap?
About six hours for the 320 km, day or night. Some vans take a little less.
How much is the bus from Phnom Penh to Siem Reap?
From about USD 9 sold online for late October 2026. Giant Ibis cost about USD 17 to 19 by day and about USD 21 at night; a Larryta sleeper about USD 18.
Is the night bus from Phnom Penh to Siem Reap a good idea?
It saves a day and a night's hotel: you leave late in the evening and arrive around dawn. Giant Ibis's night bus has beds, a toilet on board and no hotel pickup.
Can you take a boat from Phnom Penh to Siem Reap?
Only seasonally. Cambodia River Express has sailed at weekends while the water is high, in 6 to 7 hours, but no sailing was on sale for October 2026. The bus is the everyday way.
Is it better to fly from Phnom Penh to Siem Reap?
Only if time matters more than money. The flight is under an hour but costs from about USD 88, and both airports are a drive from the centre.
Where does the Giant Ibis bus leave from in Phnom Penh?
From its terminal on Street 106 by the Night Market. In Siem Reap it arrives behind the Old Stadium, near Khmer Pub Street.