$588 Cheap Flights from Columbus (CMH) to Phnom Penh (PNH)

View $588 flight on Tue, Sep 2, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $588 for one-way flights and $1,045 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Tue, Aug 26 - Wed, Sep 3
CMH
Columbus
PNH
Phnom Penh
$1,045 Roundtrip, found 2 days ago
$1,045
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Tue, Aug 26 from Columbus to Phnom Penh, returning Wed, Sep 3, priced at $1,045 found 2 days ago
Cathay Pacific
Wed, Aug 27 - Wed, Sep 3
CMH
Columbus
PNH
Phnom Penh
$1,060 Roundtrip, found 2 days ago
$1,060
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Wed, Aug 27 from Columbus to Phnom Penh, returning Wed, Sep 3, priced at $1,060 found 2 days ago
Cathay Pacific
Sat, Aug 23 - Wed, Sep 3
CMH
Columbus
PNH
Phnom Penh
$1,088 Roundtrip, found 2 days ago
$1,088
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Sat, Aug 23 from Columbus to Phnom Penh, returning Wed, Sep 3, priced at $1,088 found 2 days ago
Cathay Pacific
Sun, Aug 24 - Wed, Sep 3
CMH
Columbus
PNH
Phnom Penh
$1,103 Roundtrip, found 2 days ago
$1,103
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Sun, Aug 24 from Columbus to Phnom Penh, returning Wed, Sep 3, priced at $1,103 found 2 days ago
Cathay Pacific
Thu, Aug 28 - Wed, Sep 3
CMH
Columbus
PNH
Phnom Penh
$1,130 Roundtrip, found 2 days ago
$1,130
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Thu, Aug 28 from Columbus to Phnom Penh, returning Wed, Sep 3, priced at $1,130 found 2 days ago
Cathay Pacific
Sun, Aug 24 - Thu, Sep 4
CMH
Columbus
PNH
Phnom Penh
$1,145 Roundtrip, found 2 days ago
$1,145
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Sun, Aug 24 from Columbus to Phnom Penh, returning Thu, Sep 4, priced at $1,145 found 2 days ago
American Airlines
Mon, Aug 25 - Wed, Sep 3
CMH
Columbus
PNH
Phnom Penh
$1,176 Roundtrip, found 2 days ago
$1,176
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Aug 25 from Columbus to Phnom Penh, returning Wed, Sep 3, priced at $1,176 found 2 days ago
Air Canada
Wed, Aug 20 - Mon, Sep 22
CMH
Columbus
PNH
Phnom Penh
$1,182 Roundtrip, found 3 days ago
$1,182
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Aug 20 from Columbus to Phnom Penh, returning Mon, Sep 22, priced at $1,182 found 3 days ago
United
Tue, Nov 4 - Sun, Nov 16
CMH
Columbus
PNH
Phnom Penh
$1,243 Roundtrip, found 23 hours ago
$1,243
Roundtrip
found 23 hours ago
Select United flight, departing Tue, Nov 4 from Columbus to Phnom Penh, returning Sun, Nov 16, priced at $1,243 found 23 hours ago
Alaska Airlines
Wed, Aug 20 - Thu, Sep 25
CMH
Columbus
PNH
Phnom Penh
$1,328 Roundtrip, found 6 days ago
$1,328
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Aug 20 from Columbus to Phnom Penh, returning Thu, Sep 25, priced at $1,328 found 6 days ago

Alternative airports near Phnom Penh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Phnom Penh Intl. PNH. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,424
PNH
Phnom Penh Intl.
CheapestClosest
Average driving time to city center14 min
Flights from $1,424
Flights from Columbus (CMH) to Phnom Penh (PNH)
Origin airport
John Glenn Columbus Intl.
Destination airport
Phnom Penh Intl.
Airlines serving
Cathay Pacific, Delta, Korean Air, United
Roundtrip price
$1,045
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 $588 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?
Secure a cheap one-way flight from $588 or cheap return flight from $1,045 from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH)?
August is the least expensive month to fly from CMH to PNH. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from John Glenn Columbus Intl. Airport (CMH) to Phnom Penh Intl. Airport (PNH)?
To find the cheapest airline flying from CMH to PNH, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
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.