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

KTI — SEL
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Techo Intl to Seoul are usually found in January or April, booked 52 days in advance, depart on a Friday or Saturday and return on a Tuesday

Find flight deals from Phnom Penh to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (KTI) to Seoul (SEL). 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

January

Average price

$404
Highest demand for flights based on searches. 15% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 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 Phnom Penh to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Phnom Penh 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 Phnom Penh to Seoul

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

The price you pay for your flight from Phnom Penh to Seoul may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Phnom Penh to Seoul (average of $121). Flying from Phnom Penh to Seoul in August is currently the most expensive (average of $324). 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 KTI to SEL?

Find hourly flight availability from Phnom Penh to Seoul. 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 Phnom Penh to Seoul, 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 Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated July 9, 2026.
See what other customers who have flown with Korean Air,Asiana Airlines, andChina Eastern from Phnom Penh to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.1
Very good
551 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Eastern
7.3
Good
228 reviews
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Sky Angkor
5.0
Fair
Korean Air
8.4
Very good
1,221 reviews

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Seoul. 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 from for flights from Phnom Penh to Seoul?

    Located just 14.1 mi from the city center, Phnom Penh Techo Intl is the airport most travelers will use when flying to Seoul from Phnom Penh. Booking flights from Techo Intl (KTI) to Seoul should be relatively easy as there are 3 daily outbound flights to Seoul from 7 different airlines.

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

    Vietnam Airlines, at $190, was found to be the cheapest airline from Phnom Penh to Seoul.Alternate airlines to your destination round-trip include China Eastern and XiamenAir. Users have found that Vietnam Airlines is 56% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Phnom Penh to Seoul are Air China ($175), Vietnam Airlines ($190), and China Southern ($195).

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phnom Penh to Seoul on time: Asiana Airlines (63%), United Airlines (63%), Delta (49%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phnom Penh to Seoul 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 Phnom Penh to Seoul?

    Currently, April is the cheapest month in which you can book a flight from Phnom Penh to Seoul (average of $121). Flying from Phnom Penh to Seoul in August is currently the most expensive (average of $324). 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.

See more FAQs

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Top 7 airlines flying from Phnom Penh to Seoul

Discover the top 7 airlines that operate flights from Phnom Penh to Seoul. 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
Vietnam AirlinesCheapest$190Average$356FlexibilityNo cancel feeOn-time81%
China EasternCheapest$254Average$327FlexibilityNo cancel feeOn-time62%
XiamenAirCheapest$282Average$334FlexibilityNo cancel feeOn-time49%
China SouthernCheapest$297Average$390FlexibilityNo cancel feeOn-time69%
Sky AngkorCheapest$297Average$386FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$378Average$460FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$415Average$532FlexibilityNo cancel feeOn-time81%

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