How many days do you need in Cambodia? For most first-time American travelers, 7 to 10 days is the sweet spot — enough for Angkor Wat and Phnom Penh without rushing. Here is how to size your trip by what you actually want to see, and how it fits the 30-day stay your eVisa allows.

For most first-time American travelers, 7 to 10 days is the sweet spot. That gives you 3 to 4 unrushed days for Angkor Wat and Siem Reap, 2 to 3 days for Phnom Penh, and a little slack for travel between them. If you only care about the temples, 4 to 5 days in Siem Reap alone is enough. If you want the coast — Kampot, Kep, or the islands off Sihanoukville — budget 12 to 14 days. Whatever you choose, your Cambodia eVisa allows a 30-day single-entry stay, so a normal vacation fits comfortably inside one visa. The Tourist eVisa auto-extension ended in November 2025, so treat 30 days as the firm ceiling for a leisure trip.
Decide between the Angkor temples, Phnom Penh, and the southern coast — your priorities set the length.
Most first-time American travelers land on 7 to 10 days for Angkor plus Phnom Penh.
A trip from the US burns much of a day each way, so count feet-on-the-ground days, not days away.
The eVisa allows a 30-day single-entry stay, so any realistic vacation fits inside one visa.
Once your dates are set, apply online — the eVisa is approved in 3 business days and valid 3 months from issue.
Every air arrival files the separate e-Arrival Card, 14 fields, within 7 days before your flight.


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All seven Thailand–Cambodia land borders have been closed since June 2025, so in 2026 the only way for Americans to get from Thailand into Cambodia is to fly. Here is how the Bangkok-to-Siem Reap and Bangkok-to-Phnom Penh routes work, the Cambodia eVisa you need before you board, and why the old Poipet overland plan no longer exists.
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