How to Get From Sihanoukville to Phnom Penh
Returning from the coast to the capital is quick thanks to the Phnom Penh–Sihanoukville Expressway, which opened in 2022 and cut the 230 km drive to around 4 hours. Buses, minivans, taxis and short flights all serve the route.
Our Recommendation
The expressway bus is the sweet spot for comfort and value. A private taxi on the expressway is fast for groups; flying saves little once transfers are counted.
🚀 All Transport Options
🚌 Expressway Bus
Duration
~4 hours
Cost
$10–$18
Frequency
Multiple daily
Giant Ibis and others use the modern expressway, making this far faster and smoother than the old National Road 4.
Insider Tips
- •Confirm the bus uses the expressway
- •Central Phnom Penh drop-off
- •Book Giant Ibis online
🚐 Private Taxi
Duration
3–3.5 hours
Cost
$55–$80
Frequency
On demand
Door-to-door on the expressway; fastest overland option and good value for 3–4 people.
Insider Tips
- •Confirm the expressway toll is included
- •Per-vehicle price
✈️ Domestic Flight
Duration
~40 min in the air
Cost
$50–$110
Frequency
Limited daily
Short flights operate to Phnom Penh (Techo). Once airport transfers and check-in are counted, the time saving over the expressway bus is modest.
Insider Tips
- •Weigh transfer time vs the fast bus
- •Book ahead for the best fares
📊 Quick Comparison
| Option | Duration | Cost | Comfort |
|---|---|---|---|
| 🚌 Expressway Bus | ~4 hours | $10–$18 | comfortable |
| 🚐 Private Taxi | 3–3.5 hours | $55–$80 | comfortable |
| ✈️ Domestic Flight | ~40 min in the air | $50–$110 | premium |
❓ Frequently Asked Questions
How long from Sihanoukville to Phnom Penh?
About 4 hours by bus on the expressway, or 3–3.5 hours by private taxi. The expressway (opened 2022) made this much faster than before.
Is the expressway worth it over the old road?
Yes — the Phnom Penh–Sihanoukville Expressway is a modern, smooth highway that cut journey times by 1–2 hours versus National Road 4.
🔗 Related Routes
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