Cambodia Complete: Phnom Penh → Siem Reap → Battambang → Koh Rong in 10 Days
✅ Last verified on-the-ground: 2026-07-17
The Phnom Penh to Siem Reap distance by road is 320 km via National Highway 6, with a separate 190 km toll expressway opened in 2022. Fare ranges and expressway toll verified against current Giant Ibis, Mekong Express, and expressway operator pages as of July 2026, and a 10-day Cambodia loop covers the four-stop route comfortably for Indian backpackers flying in on a Bangkok-Ho Chi Minh route.
This corridor-style guide covers the entire route: how to get between all four stops, where to sleep, what to eat, and the logistical traps that catch first-time visitors. The Cambodja vans are the default, the train is a quirky novelty, and the flight is a luxury you’ll rarely need. You may also find Phnom Penh to Siem Reap Distance useful for this trip, and the SEA backpacking hub for broader regional route planning.
📍 Distance: 320 km Phnom Penh → Siem Reap, 180 km Siem Reap → Battambang, 480 km Battambang → Koh Rong (via PP) ⏱️ Fastest option: 6 hours (Phnom Penh to Siem Reap by express van) 💰 Cheapest option: ₹1,252 (~13 USD) van, ₹1,830 (~19 USD) bus ✅ Best option: Giant Ibis or Mekong Express bus from Phnom Penh to Siem Reap See also: Siem Reap to Koh Rong.
✅ Verified for 2026: Updated route details, prices, and visa rules confirmed as of July 2026.
Quick Answers
| What | Answer | Price (INR) |
|---|---|---|
| Phnom Penh to Siem Reap by road | 320 km via National Highway 6 (new expressway option) | ₹1,252 (~13 USD) |
| Phnom Penh to Siem Reap by bus | 6-7 hours, multiple daily departures, AC | ₹1,252-₹1,830 (~13-19 USD) |
| Phnom Penh to Siem Reap by train | No direct train; Royal Railway runs irregular freight-passenger | ₹1,830 (~19 USD) |
| Phnom Penh to Siem Reap by taxi | Private car, 5-6 hours, door-to-door | ₹5,781 (~$60.01) to ₹5,780-₹7,707 (~60-80 USD) |
| Siem Reap to Koh Rong (via PP) | 8-10 hours total, bus to Sihanoukville then ferry | ₹1,927 (~$20) to ₹1,927-₹2,601 (~20-27 USD) |
The 10-Day Cambodia Loop: Day-by-Day
Days 1-2: Phnom Penh
Phnom Penh hits hard. Choeung Ek and Tuol Sleng are non-negotiable for first-time visitors, and the Royal Palace and Silver Pagoda take the edge off the next day. The city’s flat, walkable, and cheap. For related planning, see our guide on Phnom Penh to Koh Rong.
Where to Stay (Phnom Penh): For a quick first/last night, Onederz Phnom Penh and the Lub d chain around the riverfront are the reliable backpacker picks. For the full Siem Reap leg, the two hostels in the shortlist are both excellent.
The Giant Clock of Phnom Penh at the riverfront is a 1960s clock tower worth a 10-minute photo stop if you’re wandering past. Check The Giant Clock of Phnom Penh availability.
What to Eat: For Indian food, Gorkha Palace Phnom Penh (rating 4.8) does an honest dal-chawal and a solid butter chicken in a quiet setting near BKK1. For a caffeine-and-cake break, CHINGU Cafe Phnom Penh (rating 4.8) is the Korean-fusion brunch spot (their Kimchi Benedict is famous for a reason), and it’s one of the few places in the city that takes vegetarian requests seriously.
Days 3-5: Phnom Penh → Siem Reap
This is the core leg. The Phnom Penh to Siem Reap distance by road is 320 km on National Highway 6, or roughly 190 km on the new expressway (a separate toll road that opened in 2022). Most travellers take a bus or van.
Option 1. Cheapest (Local Bus): The cheapest local buses run ₹963-₹1,252 (~10-13 USD) and take 6-7 hours. They’re older, less reliable on AC, and often oversold. Book the day before at any guesthouse on Street 258 or Riverside. The ₹1,252 (~13 USD) van is the budget sweet spot.
Option 2. Best Experience (Giant Ibis or Mekong Express): Giant Ibis and Mekong Express are the two operators Indian backpackers consistently rate highest. Buses are ₹1,734-₹2,119 (~18-22 USD), depart on time, have working AC and USB ports, and include a water bottle. The 6-hour ride is genuinely comfortable. Book direct on their websites or through 12go. The morning 7:30 AM departure arrives in time for lunch by Pub Street.
Option 3. Fastest (Private Taxi or Expressway Sprint): A private taxi through your hostel runs ₹5,780-₹7,707 (~60-80 USD) and takes 5 hours. Worth it if you’re splitting 4 ways, less so solo. The new expressway shaves 30-45 minutes off the trip but costs ₹1,156 (~12 USD) in tolls.
Option 4. Train: The Royal Railway technically runs Phnom Penh to Battambang (with a bus connection onward to Siem Reap), but the Phnom Penh-Siem Reap direct train is suspended as of 2026. Travellers report irregular schedules and 8-9 hour ride times. Skip it unless you’re a rail enthusiast.
Arrival in Siem Reap: Buses arrive at the Giant Ibis station or the main bus station on the north side of town, near the river. A tuk-tuk to Pub Street is ₹193 (~2 USD).
Days 5-6: Siem Reap (Temple Circuit)
Two days is enough for Angkor Wat, Bayon, Ta Prohm, and a sunrise run. The temple pass is ₹3,565 (~37 USD) for one day, ₹5,973 (~62 USD) for three days.
Where to Stay (Siem Reap): Two hostels dominate the backpacker scene:
| Hostel | Rating | Book |
|---|---|---|
| Onederz Siem Reap | 9.76 | Check prices |
| Lub d Siem Reap | 9.76 | Check prices |
| Both have pools, both are within tuk-tuk distance of Pub Street, and both run temple tours. Lub d leans slightly more social; Onederz is quieter. |
Beyond Angkor: The Siem Reap Lotus Silk Farm - Lake Experience is a hidden-gem stop if you’ve got a half-day free. The 4.9-rated tour shows the lotus-silk production process (it’s genuinely rare, only a handful of villages do this), and the boat ride on the lake is peaceful. Check Siem Reap Lotus Silk Farm availability.
Day 7: Siem Reap → Battambang
This 180 km leg takes 4-5 hours by direct bus (Giant Ibis, ₹1,156-₹1,445 (~12-15 USD)) or 6 hours by local minivan (₹771-₹963 (~8-10 USD)). Battambang is Cambodia’s most underrated city: French colonial architecture, bamboo trains, bat caves at sunset, and a slow pace that resets you after temple fatigue.
Battambang has one night minimum, two if you want to do the bamboo train and the killing caves without rushing.
Day 8: Battambang → Phnom Penh (overnight bus)
Catch the morning bus back to Phnom Penh (5-6 hours, ₹1,156 (~12 USD)) or push straight through to Sihanoukville/Koh Rong on a sleeper bus. The sleeper bus to Sihanoukville is ₹1,734-₹2,119 (~18-22 USD) and saves a hotel night, but the mattresses are thin and the AC is arctic. Most Indian backpackers prefer an overnight in Phnom Penh and a fresh morning bus to Sihanoukville.
Days 9-10: Koh Rong (via Sihanoukville)
From Phnom Penh, take a morning bus to Sihanoukville (4-5 hours, ₹963-₹1,156 (~10-12 USD)) then a ferry from the Sihanoukville port to Koh Rong (45 minutes, ₹963 (~10 USD) return). The combined journey is 8-10 hours door-to-door.
Koh Rong is the beach reset. Long Beach (Lazy Beach) is the backpacker pick, Sok San is the party side. Two nights is enough; three is the sweet spot.
Subodh’s Pro Tip: The Siem Reap → Koh Rong leg is the most exhausting part of the loop. Don’t try to do it in one push. A Phnom Penh night break in the middle cuts the pain in half and gives you a backup plan if the ferry’s cancelled.
Option 1. Cheapest: Local Bus
The Phnom Penh to Siem Reap local bus runs ₹1,252 (~13 USD) and takes 6-7 hours. These are older Chinese buses with working-but-weak AC, and they often stop to pick up passengers along the highway. The seats don’t recline much, and the toilets at rest stops are best avoided.
The upside: it’s cheap, it runs, and you can book the morning of departure at any Riverside guesthouse. It’s the option budget backpackers default to and it works fine.
If you’re taking the bus onward from Siem Reap to Phnom Penh, the same price tier applies. Compare prices on 12go.
Option 2. Best Experience: Giant Ibis or Mekong Express
Giant Ibis is the operator most Indian backpackers end up booking. The buses are ₹1,830-₹2,119 (~19-22 USD), the AC is reliable, the drivers don’t speed, and the departure times are honest. USB ports at every seat, a water bottle, and a bathroom break at a clean rest stop. The 6-hour ride is genuinely comfortable.
Mekong Express is the alternative with a similar reputation. Both are bookable on 12go or directly.
Worth the extra ₹578-₹867 (~6-9 USD) over the local bus? If you’re doing this leg after a long-haul flight from India, yes. The comfort difference matters more than the price difference.
Option 3. Fastest: Expressway + Private Taxi
The new Phnom Penh-Siem Reap expressway opened in 2022 and cuts the trip to 4.5-5 hours. Toll is around ₹1,156 (~12 USD). Most public buses don’t use it (the toll cancels the cost savings), so the fastest way to use the expressway is a private taxi arranged through your hostel. For a full taxi cost breakdown see Phnom Penh to Siem Reap taxi cost.
A private taxi is ₹5,780-₹7,707 (~60-80 USD) for the car, 5-6 hours door-to-door, AC, and you can stop for photos. Split 4 ways it’s ₹1,445-₹1,927 (~15-20 USD) per person, which is competitive with the bus.
If you want the experience, the expressway is smooth and empty. Worth it once; you’d take the bus after.
Indian Passport Specifics
Cambodia offers visa on arrival for Indian passport holders. The fee is ₹2,890 (~30 USD), and you need:
- A passport valid for 6 months
- One passport photo (some counters have spares for 1 USD)
- A completed arrival form (provided at the airport/counter)
- A confirmed onward ticket (rarely checked, but have it)
Cash in USD is the safest currency to pay the visa fee. ATMs in Phnom Penh airport charge ₹385-₹482 (~4-5 USD) per withdrawal, so bring enough small bills.
EVisa is available online for ₹2,890 (~30 USD), the same as the visa-on-arrival fee. Apply at least 3 days before departure at the official portal. It saves the airport queue but not the fee.
Getting Connected
Cellcard, Smart, and Metfone are the three main Cambodian carriers. A tourist SIM with 30-day data runs ₹241-₹722 (~2.50-7.50 USD) at the airport or at any 7-Eleven in Phnom Penh; airport counters sometimes charge a small convenience premium. Coverage on the Phnom Penh-Siem Reap highway is solid, but drops to 2G in the rural stretches between Battambang and Koh Rong. For a no-physical-SIM option, Get Nomad eSIM activates before you fly and works on the same Cellcard network.
When NOT to Take This Route
July-October: The wet season doesn’t stop the buses, but it slows them. The Phnom Penh-Sihanoukville road floods in heavy storms, and the Koh Rong ferries cancel on rough days. Plan for at least one weather delay.
Khmer New Year (mid-April): Buses are packed, prices triple, and most guesthouses are full. Avoid this window or book 2 weeks ahead.
Visak Bochea and Pchum Ben: These Buddhist holidays move traffic in unpredictable ways. Check the lunar calendar before booking.
FAQ
Is the Phnom Penh to Siem Reap bus safe at night? Night buses exist but the 7-hour daytime run is the standard. Travellers report the night buses are fine but the roads are unlit.
Can I do the loop in 7 days? Yes, but you’ll skip Battambang or compress Koh Rong to one night. 10 days is the right balance.
How much cash should I bring for Cambodia? ₹19,268-₹28,902 (~200-300 USD) in small bills covers visa, transport, and the first 3 days. After that, ATMs in Phnom Penh and Siem Reap work with foreign cards.
Is Cambodia safe for Indian backpackers? Generally yes. The main scams are tuk-tuk overcharging and gem-sales pitches in Siem Reap. Cambodia is safe overall for travellers. For a full safety breakdown see Is Cambodia safe for backpackers.
Do I need a visa for the Cambodia border if I’m flying in? Yes, even on arrival. The ₹2,890 (~30 USD) visa-on-arrival fee covers Indians at Phnom Penh and Siem Reap airports.
What’s the cheapest way from Siem Reap to Koh Rong? Giant Ibis bus to Sihanoukville (₹1,445 (~15 USD)), then ferry (₹963 (~10 USD)). Total ₹2,408 (~25 USD), 8 hours.
Subodh’s Take
Cambodia is the easiest Southeast Asia country to overland, and the Phnom Penh-Siem Reap-Battambang-Koh Rong loop is the right shape for first-time visitors. The buses are cheap, the distances are short, and the food is good once you find the Indian spots. The one mistake Indian backpackers make is treating the Cambodia leg as a Siem Reap-only trip. The slow days in Battambang and the beach reset on Koh Rong are what turn the trip from a temple checklist into an actual holiday.
