$106 Cheap Flights from Seoul (ICN) to Phnom Penh (PNH)

View $106 flight on Thu, Aug 28, 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)

Cheap Flights from Seoul to Phnom Penh (ICN-PNH)

Prices were available within the past 7 days and start at $106 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Mon, Aug 18 - Wed, Aug 27
ICN
Seoul
PNH
Phnom Penh
$218 Roundtrip, found 6 hours ago
$218
Roundtrip
found 6 hours ago
Select China Southern Airlines flight, departing Mon, Aug 18 from Seoul to Phnom Penh, returning Wed, Aug 27, priced at $218 found 6 hours ago
China Southern Airlines
Mon, Aug 25 - Sun, Aug 31
ICN
Seoul
PNH
Phnom Penh
$242 Roundtrip, found 6 hours ago
$242
Roundtrip
found 6 hours ago
Select China Southern Airlines flight, departing Mon, Aug 25 from Seoul to Phnom Penh, returning Sun, Aug 31, priced at $242 found 6 hours ago
China Southern Airlines
Tue, Aug 26 - Sat, Aug 30
ICN
Seoul
PNH
Phnom Penh
$243 Roundtrip, found 7 hours ago
$243
Roundtrip
found 7 hours ago
Select China Southern Airlines flight, departing Tue, Aug 26 from Seoul to Phnom Penh, returning Sat, Aug 30, priced at $243 found 7 hours ago
Vietnam Airlines
Fri, Apr 3 - Mon, Apr 6
ICN
Seoul
PNH
Phnom Penh
$246 Roundtrip, found 4 days ago
$246
Roundtrip
found 4 days ago
Select Vietnam Airlines flight, departing Fri, Apr 3 from Seoul to Phnom Penh, returning Mon, Apr 6, priced at $246 found 4 days ago
Vietnam Airlines
Wed, Aug 27 - Wed, Sep 3
ICN
Seoul
PNH
Phnom Penh
$248 Roundtrip, found 18 hours ago
$248
Roundtrip
found 18 hours ago
Select Vietnam Airlines flight, departing Wed, Aug 27 from Seoul to Phnom Penh, returning Wed, Sep 3, priced at $248 found 18 hours ago
Vietnam Airlines
Fri, Oct 17 - Sat, Nov 1
ICN
Seoul
PNH
Phnom Penh
$251 Roundtrip, found 4 days ago
$251
Roundtrip
found 4 days ago
Select Vietnam Airlines flight, departing Fri, Oct 17 from Seoul to Phnom Penh, returning Sat, Nov 1, priced at $251 found 4 days ago
Vietnam Airlines
Fri, Oct 17 - Sat, Nov 1
ICN
Seoul
PNH
Phnom Penh
$255 Roundtrip, found 4 days ago
$255
Roundtrip
found 4 days ago
Select Vietnam Airlines flight, departing Fri, Oct 17 from Seoul to Phnom Penh, returning Sat, Nov 1, priced at $255 found 4 days ago
China Eastern Airlines
Fri, Sep 5 - Tue, Sep 9
ICN
Seoul
PNH
Phnom Penh
$276 Roundtrip, found 1 day ago
$276
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Fri, Sep 5 from Seoul to Phnom Penh, returning Tue, Sep 9, priced at $276 found 1 day ago
Asiana Airlines
Mon, Oct 13 - Fri, Oct 17
ICN
Seoul
PNH
Phnom Penh
$282 Roundtrip, found 6 days ago
$282
Roundtrip
found 6 days ago
Select Asiana Airlines flight, departing Mon, Oct 13 from Seoul to Phnom Penh, returning Fri, Oct 17, priced at $282 found 6 days ago
Korean Air
Thu, Sep 18 - Tue, Sep 30
ICN
Seoul
PNH
Phnom Penh
$284 Roundtrip, found 4 hours ago
$284
Roundtrip
found 4 hours ago
Select Korean Air flight, departing Thu, Sep 18 from Seoul to Phnom Penh, returning Tue, Sep 30, priced at $284 found 4 hours ago

Find the cheapest month to fly from Seoul (ICN) to Phnom Penh (PNH)

December is typically the cheapest month to fly

From $236 - $386 per traveler.

Graph displaying average flight prices per month

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 $243
PNH
Phnom Penh Intl.
CheapestClosest
Average driving time to city center14 min
Flights from $243
Flights from Seoul (ICN) to Phnom Penh (PNH)
Origin airport
Incheon Intl.
Destination airport
Phnom Penh Intl.
Airlines serving
Air China, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, EVA Airways, Korean Air, Malaysia Airlines, Philippine Airlines, Singapore Airlines, Thai Airways International, Vietnam Airlines, Xiamen Airlines
Roundtrip price
$218
Distance
2234 mi
Average flight time
3 hours 28 mins

Seoul to Phnom Penh Flights

The cheapest times to fly from Seoul 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 Seoul to Phnom Penh are during the month of August. You can find some of the cheapest flights from Seoul to Phnom Penh with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Seoul 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 Seoul 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 Seoul to Phnom Penh in 2025. You can also book with separate airlines for your outbound and return journeys, from $106 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 Seoul 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 Seoul 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 Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH) cost?
Snag cheap return fares starting at $282 from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Asiana Airlines flight leaving ICN on August 16 2025 and touching down at PNH. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from ICN to PNH?
The cheapest flights from ICN 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.
Which airlines fly direct from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
Skip the layovers and travel straight to Phnom Penh Intl. Airport (PNH) from Incheon Intl. Airport (ICN) with 3 airlines, including:

  • Korean Air
  • Sky Angkor
  • Asiana Airlines

What is the cheapest airline that flies from ICN to PNH?
Right now, the cheapest carrier offering one-way flights from ICN to PNH is Asiana Airlines. You can jet off on this route from $187. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ICN on September 23 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
With, on average, 3 nonstop flights that operate from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH) each day, you'll be jetting off in no time.
What are the most popular departure times for flights from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
Flights between ICN and PNH are busiest at 11 AM. If you're after a quieter experience and possibly cheaper fares, look for a departure that's outside typical rush times.
What day of the week has the most flights from ICN to PNH?
Depart on a Sunday if you're searching for the best selection of flights from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH).
What is the earliest flight from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
Hop on the earliest flight at around 11:20AM UTC+9, heading out of Incheon Intl. Airport (ICN). You'll be flying for roughly 5h 50m, landing at Phnom Penh Intl. Airport (PNH) at approximately 3:10PM UTC+7.
How long does it take to fly from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
Flights from ICN to PNH have an average travel time of 5 hours and 50 minutes. The total distance between these two airports is 2,200 mi.
What is the best time to fly from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
Opt for a flight from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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.
What airports do you fly into for Phnom Penh from Incheon Intl. Airport (ICN)?
Phnom Penh Intl. Airport (PNH) is the only airport in Phnom Penh with direct flights from Incheon Intl. Airport (ICN). Explore the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH) last-minute?
Waiting until right before your break to book your flight from ICN to PNH often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for a better chance of getting a bargain.
Is it cheaper to book an ICN to PNH flight and hotel package?
You'll generally save money by securing an ICN to PNH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal flights and accommodations, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Phnom Penh Intl. Airport (PNH)?
In most instances, you can cancel or modify your ICN to PNH flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.