Cheap flights from St. Louis (STL) to Phnom Penh (PNH)

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How to find the cheapest flight from
St. Louis (STL) to Phnom Penh (PNH)

All the information you need to plan the best STL to PNH flight in 2022: compare St. Louis to Phnom Penh flight prices with the expected peak season, weather and rainfall in Phnom Penh.
When is the cheapest time to fly from St. Louis to Phnom Penh (STL - PNH)?

It’s optimal to fly from St. Louis to Phnom Penh in the evening. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly round-trip from St. Louis to Phnom Penh?

Travelers have found that booking a Sunday departure is the best way to save up to 88% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Phnom Penh</span> flights.

COVID Restrictions

View COVID Travel Restrictions for Phnom Penh, Cambodia

Do I need a COVID test to fly to Phnom Penh from St. Louis?

Information is based on travel restrictions from Lambert-St Louis to Phnom Penh Pochentong

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Phnom Penh Pochentong.

COVID-19 testing requirements
Visitors from Lambert-St Louis are not required to present a negative COVID-19 PCR test or antigen result upon entering Phnom Penh Pochentong.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Phnom Penh Pochentong.

Do I need a test to fly back to St. Louis from Phnom Penh?

Returning to Lambert-St Louis from Phnom Penh Pochentong

COVID-19 testing requirements
Visitors from Phnom Penh Pochentong are not required to present a negative COVID-19 PCR test or antigen result upon entering Lambert-St Louis.

Quarantine requirements
Visitors from Phnom Penh Pochentong are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Phnom Penh, Cambodia

Alternative routes for St. Louis to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Phnom Penh

Things to know before you go - useful duration and weather info for your trip from St. Louis to Phnom Penh.
Today's exchange rate
$1 = 4,003.37៛
Average temperature for June in Phnom Penh
91.4 °F
Avg rainfall for June in Phnom Penh
1.4 ″

Airports servicing St. Louis

Airports servicing Phnom Penh

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