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Flights from San Francisco to Phnom Penh

From San Francisco, every trip to Phnom Penh connects once, in Seoul, Hong Kong, Taipei or Singapore. The fastest seen, on Korean Air, takes 20 hours. Vietnam Airlines adds a route through Ho Chi Minh City, four days a week.

By Pierre-Marie Coupry · updated · sources

Phnom Penh's Royal Palace on the riverfront, seen from the opposite bank, with the city's towers behind

Photo by Piseth Mao on Pexels

Boarding pass · at least one stop

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Nonstop
none from SFO
Stops
at least one
Total travel time
20h to 20h 30m by connection
Round-trip fare
from $790
Arrival airport
Techo (KTI), since 2025

San Francisco to Phnom Penh: where to connect

SFO has nonstops to every major Asian hub with a flight to Phnom Penh. Singapore, Taipei and Hong Kong are the busiest connections.

Via Seoul

Korean Air or Asiana

  1. San Francisco
  2. Seoul
  3. Phnom Penh

Seoul Incheon: a daily SFO flight on each airline, then a daily nonstop on each. 20h, the fastest seen

Right for you if you want the shortest trip.

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Via Hong Kong

Cathay Pacific

  1. San Francisco
  2. Hong Kong
  3. Phnom Penh

Hong Kong: 14 SFO flights a week, then 2 nonstops a day to Phnom Penh. ≈ 20h 30m

Right for you if you want plenty of times on the last leg.

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Via Taipei

EVA Air

  1. San Francisco
  2. Taipei
  3. Phnom Penh

Taipei: 3 SFO flights a day, then a daily nonstop to Phnom Penh

Right for you if you want the most departures from SFO.

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Via Singapore

Singapore Airlines

  1. San Francisco
  2. Singapore
  3. Phnom Penh

Singapore: 2 SFO flights a day, then 3 a day to Phnom Penh

Right for you if you're watching the price: it had the cheapest round trip seen, $790.

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Via Ho Chi Minh City

Vietnam Airlines

  1. San Francisco
  2. Ho Chi Minh City
  3. Phnom Penh

Ho Chi Minh City: a nonstop from SFO on Wednesdays, Thursdays, Saturdays and Sundays, then a daily flight to Phnom Penh

Right for you if you also want to see Vietnam or the Mekong Delta.

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How long from San Francisco?

  • Korean Air, via Seoul

    20h

  • Cathay Pacific, via Hong Kong

    20h 30m

One-way flying time, connection included. Source: Kayak, October 12, 2026.

From Techo Airport to central Phnom Penh

Techo replaced the old airport, which was in town. It's farther out: factor the transfer into your arrival plans.

Express bus

1,500 riel

The Phnom Penh city bus line, 5:30 a.m. to 11:30 p.m., makes 4 stops as far as the train station. Cash, riel only; 1 to 2 hours depending on traffic.

Taxi or ride-hailing

$10 to $20

Desks in the arrivals hall, or Grab, PassApp and WowNow. The fare depends on the neighborhood. Allow 45 minutes to 1.5 hours for about 20 km.

Pre-booked taxi

from about $15

On 12Go, a private sedan can be booked ahead from about $15, an SUV for around $40. Handy for a night arrival or with family.

From Phnom Penh, along the river

Upriver, Stung Treng and the 4,000 Islands in Laos; downriver, the coconut groves of the Mekong Delta.

San Francisco to Phnom Penh flights: FAQ

Is there a nonstop from San Francisco to Phnom Penh?
No. Every routing connects at least once. Korean Air via Seoul was the fastest seen, at 20 hours, and Cathay Pacific via Hong Kong took 20h 30m.
Can you fly Vietnam Airlines from SFO?
Yes: it flies nonstop to Ho Chi Minh City four days a week, Wednesday, Thursday, Saturday and Sunday, then on to Phnom Penh daily. It's a good fit if you're also visiting Vietnam.
How long must a US passport be valid for Cambodia?
Six months beyond arrival. You also need a visa: the $30 tourist e-Visa online, or a visa on arrival at Techo, paid in US dollars, plus the free e-Arrival card within 7 days before you land.

Sources: routes, times and fares seen, Kayak and Google Flights (October 12, 2026); flights to Techo, AeroRoutes (2025-2026) and EVA Air (August 2025); transfers, Techo International Airport, Nomad Lawyer and GeckoRoutes (2026), 12Go (checked October 11, 2026); e-Visa, Mekong Tourism (January 2025) and the US State Department. Updated October 12, 2026 by Pierre-Marie Coupry.