$616 Cheap Flights from Columbus (CMH) to Phnom Penh (PNH)

View $616 flight on Mon, Aug 18, 2025Opens in a new window

Popular airlines from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH)

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Cheap Flights from Columbus to Phnom Penh (CMH-PNH)

Prices were available within the past 7 days and start at $616 for one-way flights and $1,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Aug 18 - Thu, Sep 4
CMH
Columbus
PNH
Phnom Penh
$1,200 Roundtrip, found 1 day ago
$1,200
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 18 from Columbus to Phnom Penh, returning Thu, Sep 4, priced at $1,200 found 1 day ago
Cathay Pacific
Mon, Aug 18 - Mon, Sep 1
CMH
Columbus
PNH
Phnom Penh
$1,222 Roundtrip, found 1 day ago
$1,222
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Mon, Aug 18 from Columbus to Phnom Penh, returning Mon, Sep 1, priced at $1,222 found 1 day ago
American Airlines
Sat, Aug 23 - Mon, Sep 8
CMH
Columbus
PNH
Phnom Penh
$1,228 Roundtrip, found 6 days ago
$1,228
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 23 from Columbus to Phnom Penh, returning Mon, Sep 8, priced at $1,228 found 6 days ago
American Airlines
Thu, May 1 - Thu, May 29
CMH
Columbus
PNH
Phnom Penh
$1,243 Roundtrip, found 2 days ago
$1,243
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, May 1 from Columbus to Phnom Penh, returning Thu, May 29, priced at $1,243 found 2 days ago
American Airlines
Mon, Aug 25 - Sat, Sep 6
CMH
Columbus
PNH
Phnom Penh
$1,250 Roundtrip, found 1 day ago
$1,250
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Aug 25 from Columbus to Phnom Penh, returning Sat, Sep 6, priced at $1,250 found 1 day ago
American Airlines
Sun, May 4 - Sun, May 25
CMH
Columbus
PNH
Phnom Penh
$1,259 Roundtrip, found 2 days ago
$1,259
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, May 4 from Columbus to Phnom Penh, returning Sun, May 25, priced at $1,259 found 2 days ago
Cathay Pacific
Sat, May 3 - Tue, May 27
CMH
Columbus
PNH
Phnom Penh
$1,265 Roundtrip, found 1 day ago
$1,265
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Sat, May 3 from Columbus to Phnom Penh, returning Tue, May 27, priced at $1,265 found 1 day ago
American Airlines
Sat, Aug 23 - Sat, Sep 13
CMH
Columbus
PNH
Phnom Penh
$1,278 Roundtrip, found 6 days ago
$1,278
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 23 from Columbus to Phnom Penh, returning Sat, Sep 13, priced at $1,278 found 6 days ago
American Airlines
Thu, May 1 - Tue, May 27
CMH
Columbus
PNH
Phnom Penh
$1,279 Roundtrip, found 1 day ago
$1,279
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 1 from Columbus to Phnom Penh, returning Tue, May 27, priced at $1,279 found 1 day ago
Alaska Airlines
Mon, Feb 2 - Mon, Mar 23
CMH
Columbus
PNH
Phnom Penh
$1,280 Roundtrip, found 7 hours ago
$1,280
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Mon, Feb 2 from Columbus to Phnom Penh, returning Mon, Mar 23, priced at $1,280 found 7 hours ago
Flights from Columbus (CMH) to Phnom Penh (PNH)
Origin airport
John Glenn Columbus Intl.
Destination airport
Phnom Penh Intl.
Airlines serving
Air China, Cathay Pacific, Delta, Korean Air, Qatar Airways, United
Roundtrip price
$1,199
Distance
8840 mi

Columbus to Phnom Penh Flights

The cheapest times to fly from Columbus to Phnom Penh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Columbus to Phnom Penh are during the month of August. You can find some of the cheapest flights from Columbus to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Columbus to Phnom Penh

Sunday is one of the best days to book for cheap flights from Columbus to Phnom Penh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Columbus to Phnom Penh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Columbus to Phnom Penh in 2025. You can also book with separate airlines for your outbound and return journeys, from $616 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Columbus to Phnom Penh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Columbus to Phnom Penh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH) cost?
Discover the latest flight deals from CMH to PNH by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CMH to PNH?
The cheapest flights from CMH to PNH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CMH to PNH?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from CMH to PNH. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH)?
Nonstop flights from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel dates and select either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from CMH to PNH?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH)?
To arrive at Phnom Penh Intl. Airport (PNH) without delays, pick a flight that leaves John Glenn Columbus Intl. Airport (CMH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH) last-minute?
Waiting until just before your trip to book a flight from CMH to PNH generally means paying more. While you may come across some last-minute deals, they’re not always guaranteed. Allow some flexibility in your schedule for a better chance of snagging a bargain.
Is it cheaper to book a CMH to PNH flight and hotel package?
Securing a CMH to PNH flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH)?
It’s usually possible to reschedule or cancel your CMH to PNH flight. However, if it’s been more than 24 hours since booking, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.