As Cambodia’s capital, Phnom Penh is well connected both internationally and to the rest of the country, with more flight and overland options than Siem Reap in some respects, given its role as a genuine business and transit hub rather than a purely tourism-driven destination.
Flying into Phnom Penh
Phnom Penh International Airport receives direct flights from major regional hubs including Bangkok, Ho Chi Minh City, Singapore, Kuala Lumpur, and a growing number of direct connections from further afield. As Cambodia’s primary business gateway, it often has more frequent and sometimes cheaper flight options than Siem Reap, particularly from regional Southeast Asian cities.
Overland from Siem Reap
Buses run this route 5.5-6.5 hours for $12-20, with Giant Ibis generally considered the most comfortable operator. A scenic boat option along the Tonle Sap runs $25-35 and 5-6 hours, best during wet season when water levels support a more direct route. See our dedicated Phnom Penh to Siem Reap guide for a full comparison.
Overland from Vietnam
The Ho Chi Minh City-Phnom Penh route is one of the most traveled border crossings in the region, with direct buses (Giant Ibis, Mekong Express, and several Vietnamese operators) taking 6-7 hours including the border stop, for $12-20. This crossing is generally considered straightforward and low-hassle compared to some other Southeast Asian land borders, with visa-on-arrival or pre-arranged e-visa both working smoothly.
Overland from Thailand
From Bangkok, travelers can reach Phnom Penh via the same Poipet border crossing used for Siem Reap, continuing on to the capital afterward, or via the less commonly used Cham Yeam crossing further south near the coast if approaching from Trat or Koh Chang. The Poipet route is more established and better served by direct bus connections.
Choosing the right arrival method for your itinerary
If Phnom Penh is your first stop in Cambodia, flying directly in is the simplest choice, particularly from a regional hub with frequent service. If you’re arriving from Siem Reap or Vietnam as part of a wider trip, the overland options are well-established, reliable, and considerably cheaper than flying, worth the extra travel time for budget-conscious travelers.
Frequently asked questions
Is Phnom Penh Airport busier than Siem Reap’s?
Phnom Penh generally sees more business and regional traffic, sometimes translating to more frequent flight options and competitive pricing on certain regional routes.
How long does the Ho Chi Minh City to Phnom Penh bus take?
Around 6-7 hours including the border crossing, making it a comfortable single-day journey between the two cities.
Can I get a Cambodian visa at the Vietnam border?
Yes, visa on arrival is available at this crossing, though arranging an e-visa online beforehand is faster and avoids potential queues.
Which is cheaper: flying or taking the bus to Phnom Penh from Siem Reap?
The bus is significantly cheaper ($12-20 vs. $40-70 for a flight), though flying saves several hours — the right choice depends on how much you value time versus budget.
Once you land: getting settled
Our Phnom Penh Airport Guide covers immigration, SIM cards, and the transfer into the city in more detail, while our Phnom Penh Airport Hotels guide covers the narrow set of situations where staying near the airport itself makes sense.
Where to stay once you arrive
For choosing a neighborhood and specific property, our Best Budget Guesthouses in Phnom Penh and Best Riverside Hotels in Phnom Penh guides cover the two most popular starting points across price tiers.
Continuing on to Siem Reap
Many travelers treat Phnom Penh as one stop on a wider Cambodia trip — see our Phnom Penh to Siem Reap guide for the bus, boat, and flight options once you’re ready to continue toward Angkor.
Currency and cash on arrival
US dollars are used interchangeably with Cambodian riel throughout the country, so exchanging money isn’t strictly necessary on arrival — withdrawing USD directly from an airport or city ATM works fine for most travelers’ initial cash needs.
A final word on planning your arrival
Whichever route you take into Phnom Penh, building in a buffer for unexpected delays — a longer-than-usual immigration queue, traffic on the transfer into town — keeps your first day from feeling rushed before you’ve even properly started your trip.
Combining Phnom Penh with a wider Southeast Asia itinerary
Phnom Penh’s position between Vietnam and Thailand, with reasonably well-connected flights and land routes to both, makes it a natural stop on a longer regional trip rather than a standalone destination requiring a dedicated round-trip flight.
What to expect cost-wise across these options
Flights typically run $50-150 depending on origin and how far ahead you book, land routes from neighboring countries run $10-40 depending on distance and comfort level, and the price gap between options is often worth weighing against how much travel time you’re willing to spend on this specific leg of your trip.
Whichever route brings you to Phnom Penh, the city’s role as Cambodia’s transport hub means onward connections to virtually anywhere else in the country are well established.
Pingback: Ho Chi Minh City to Phnom Penh: Border Crossing and Travel Options
Pingback: Bangkok to Phnom Penh: Border Crossing and Travel Options