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Phnom Penh

Cheap flights from Seoul (SEL) to Phnom Penh (KTI)

SEL — KTI
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Find flight deals from Seoul to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Phnom Penh (KTI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 9, 2026.

Popular in

September

Cheapest in

March

Average price

$434
Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2026
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Best time to book a flight from Seoul to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Seoul with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seoul to Phnom Penh

How far ahead should I book a flight from Seoul to Phnom Penh?

To ensure you get the cheapest price possible for a flight from Seoul to Phnom Penh, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seoul to Phnom Penh?

Currently, May is the cheapest month in which you can book a flight from Seoul to Phnom Penh (average of $124). Flying from Seoul to Phnom Penh in August is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEL to KTI?

Find hourly flight availability from Seoul to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 9, 2026.

When flying from Seoul to Phnom Penh, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated July 9, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andSky Angkor from Seoul to Phnom Penh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.1
Very good
551 reviews
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Sky Angkor
5.0
Fair
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Seoul to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Phnom Penh from Seoul?

    Located just 14.1 mi from the city center, Phnom Penh Techo Intl is the airport most travelers will use when flying to Phnom Penh from Seoul. Booking flights from Seoul to Techo Intl (KTI) should be relatively easy as there are 4 daily inbound flights from Seoul from 3 different airlines.

  • What are the cheapest airlines flying from Seoul to Phnom Penh round-trip?

    Our cheapest airline available from Seoul to Phnom Penh is Sky Angkor. Our recent data shows that you can find tickets from as low as $249 on this airline. Additional options worth looking into are Asiana Airlines and Korean Air, starting at $266 and $300 round-trip. Sky Angkor is currently priced 40% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seoul to Phnom Penh one-way?

    To fly one-way, consider booking your trip with China Eastern, which is currently one of the cheapest options available, starting at $102. Sky Angkor flights start at $113 while deals on Vietnam Airlines start at $136 one-way.

  • What are the most reliable airlines from Seoul to Phnom Penh?

    The top 3 most reliable airlines when flying from Seoul to Phnom Penh are Sky Angkor (90%), United Airlines (87%) and Asiana Airlines (84%).

  • Can I find deals for flights from Seoul to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Seoul to Phnom Penh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Phnom Penh.

  • Can I find deals for business class flights from Seoul to Phnom Penh?

    Yes. Cheapflights offers flight deals from Seoul to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul to Phnom Penh?

    Currently, May is the cheapest month in which you can book a flight from Seoul to Phnom Penh (average of $124). Flying from Seoul to Phnom Penh in August is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Seoul to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Siem Reap flights

Top 3 airlines flying from Seoul to Phnom Penh

Discover the top 3 airlines that operate flights from Seoul to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sky AngkorCheapest$249Average$369FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$266Average$387FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$300Average$387FlexibilityNo cancel feeOn-time81%

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