Cheap Flights from Seoul to Techo International

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Flight deals from Seoul to Techo International

Looking for a cheap last-minute deal or the best return flight from Seoul to Techo International Airport? If you want to travel next month, return fares start from $376. Find the lowest prices on one-way and return tickets right here.

Phnom Penh.$375 per passenger.Departing Sat, 29 Aug, returning Fri, 25 Sep.Return flight with Sky Angkor.Outbound direct flight with Sky Angkor departs from Incheon International on Sat, 29 Aug, arriving in Techo International.Inbound direct flight with Sky Angkor departs from Techo International on Fri, 25 Sep, arriving in Incheon International.Price includes taxes and charges.From $375, select.

Phnom Penh.$376 per passenger.Departing Sat, 5 Sep, returning Fri, 11 Sep.Return flight with Sky Angkor.Outbound direct flight with Sky Angkor departs from Incheon International on Sat, 5 Sep, arriving in Techo International.Inbound direct flight with Sky Angkor departs from Techo International on Fri, 11 Sep, arriving in Incheon International.Price includes taxes and charges.From $376, select.

Phnom Penh.$377 per passenger.Departing Mon, 28 Sep, returning Tue, 6 Oct.Return flight with Sky Angkor.Outbound direct flight with Sky Angkor departs from Incheon International on Mon, 28 Sep, arriving in Techo International.Inbound direct flight with Sky Angkor departs from Techo International on Tue, 6 Oct, arriving in Incheon International.Price includes taxes and charges.From $377, select.

Phnom Penh.$382 per passenger.Departing Wed, 21 Oct, returning Wed, 11 Nov.Return flight with Sky Angkor.Outbound direct flight with Sky Angkor departs from Incheon International on Wed, 21 Oct, arriving in Techo International.Inbound direct flight with Sky Angkor departs from Techo International on Wed, 11 Nov, arriving in Incheon International.Price includes taxes and charges.From $382, select.

Phnom Penh.$393 per passenger.Departing Thu, 22 Oct, returning Mon, 26 Oct.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Thu, 22 Oct, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Mon, 26 Oct, arriving in Incheon International.Price includes taxes and charges.From $393, select.

Phnom Penh.$393 per passenger.Departing Wed, 19 Aug, returning Fri, 2 Oct.Return flight with Sky Angkor.Outbound direct flight with Sky Angkor departs from Incheon International on Wed, 19 Aug, arriving in Techo International.Inbound direct flight with Sky Angkor departs from Techo International on Fri, 2 Oct, arriving in Incheon International.Price includes taxes and charges.From $393, select.

Phnom Penh.$401 per passenger.Departing Sun, 30 Aug, returning Sat, 21 Nov.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Sun, 30 Aug, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Sat, 21 Nov, arriving in Incheon International.Price includes taxes and charges.From $401, select.

Phnom Penh.$404 per passenger.Departing Thu, 15 Apr, returning Sun, 2 May.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Thu, 15 Apr, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Sun, 2 May, arriving in Incheon International.Price includes taxes and charges.From $404, select.

Phnom Penh.$406 per passenger.Departing Wed, 14 Oct, returning Mon, 26 Oct.Return flight with Sky Angkor.Outbound direct flight with Sky Angkor departs from Incheon International on Wed, 14 Oct, arriving in Techo International.Inbound direct flight with Sky Angkor departs from Techo International on Mon, 26 Oct, arriving in Incheon International.Price includes taxes and charges.From $406, select.

Phnom Penh.$410 per passenger.Departing Wed, 12 May, returning Sun, 16 May.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Wed, 12 May, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Sun, 16 May, arriving in Incheon International.Price includes taxes and charges.From $410, select.

Phnom Penh.$411 per passenger.Departing Sat, 3 Apr, returning Sat, 24 Apr.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Sat, 3 Apr, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Sat, 24 Apr, arriving in Incheon International.Price includes taxes and charges.From $411, select.

Phnom Penh.$418 per passenger.Departing Mon, 2 Nov, returning Wed, 4 Nov.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Mon, 2 Nov, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Wed, 4 Nov, arriving in Incheon International.Price includes taxes and charges.From $418, select.

Phnom Penh.$421 per passenger.Departing Thu, 26 Nov, returning Sat, 5 Dec.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Thu, 26 Nov, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Sat, 5 Dec, arriving in Incheon International.Price includes taxes and charges.From $421, select.

Phnom Penh.$422 per passenger.Departing Fri, 23 Oct, returning Fri, 4 Dec.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Fri, 23 Oct, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Fri, 4 Dec, arriving in Incheon International.Price includes taxes and charges.From $422, select.

Phnom Penh.$422 per passenger.Departing Tue, 1 Jun, returning Tue, 8 Jun.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Tue, 1 Jun, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Tue, 8 Jun, arriving in Incheon International.Price includes taxes and charges.From $422, select.

Phnom Penh.$426 per passenger.Departing Sat, 5 Dec, returning Fri, 5 Feb.Return flight with Vietnam Airlines.Outbound indirect flight with Vietnam Airlines, departs from Incheon International on Sat, 5 Dec, arriving in Techo International.Inbound indirect flight with Vietnam Airlines, departs from Techo International on Fri, 5 Feb, arriving in Incheon International.Price includes taxes and charges.From $426, select.

Find the cheapest month to fly from Seoul to Techo International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seoul to Techo International flights are currently cheapest in September.

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Direct flights from Seoul to Techo International

Seoul to Phnom Penh: Flight information

The things to know before you go.

Cheapest flight found	$375
Cheapest month to fly	August
Average flight time	5 hrs, 41 mins
Most popular airline	United
Average flights per week	58

Finding cheap flights from Seoul to Techo International: Frequently asked questions

How much are return flights from Seoul to Techo International?

The best price we found for a return flight from Seoul to Techo International is $375. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seoul to Techo International?

5 hours and 41 minutes is the average flight time from Seoul to Techo International.

Which airlines fly direct from Seoul to Techo International?

United, Asiana Airlines and Delta fly direct from Seoul to Techo International.

How many flights are there a week from Seoul to Techo International?

As of August 2026, there are 29 flights per week flying from Seoul to Techo International.

When is the cheapest time to fly from Seoul to Techo International?

The cheapest month to fly from Seoul to Techo International is usually August.

Which upcoming date is cheapest to fly from Seoul to Techo International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Techo International Airport on Saturday, 29 August 2026.

Can I get a direct flight from Seoul to Techo International Airport?

Yes – the average flight time is 5 hours and 41 minutes.

How can I find the best flight deal to Techo International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Techo International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Phnom Penh?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phnom Penh is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Seoul to Techo International with?

The cheapest airline that flies to Techo International is Sky Angkor .

Flying from Seoul to Techo International Airport (KTI): What you need to know

Seoul Incheon International Airport (ICN) is Seoul's main airport. Check out your options for reserving a flight from Seoul to Techo International Airport (KTI) leaving from here.
The average time for a direct Seoul to Techo International Airport flight is 5 hours 40 minutes.
The timezone in Phnom Penh is UTC+7, which is two hours behind Seoul. Techo International Airport is located in Phnom Penh.
You can pick from 15 direct weekly services between Seoul Incheon International Airport (ICN) and Techo International Airport (KTI). This is the most popular route when departing from Seoul.
Get to the airport on time so you don't miss your flight from Seoul to KTI. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.
Popular months like January or other peak seasons mean longer queues and potential delays. Stick to your schedule by getting to the airport even earlier. Plan for at least four hours ahead of an international flight and two hours before domestic departures.

Airports in Seoul

Seoul Incheon International Airport (ICN)

Get there in one go from Seoul Incheon International Airport (ICN). Direct flights from Seoul to Techo International Airport (KTI) are available from here.
You'll have your choice of carriers offering direct flights from Seoul to Techo International Airport departing from ICN. Book your seat with one of these:
Korean Air is the most frequently booked airline offering flights from ICN to KTI.
Among carriers operating on this route, Korean Air has the highest percentage of on-time landings.
The journey from central Seoul to ICN takes around 50 minutes by public transport. If you drive, ride-share or grab a taxi, you'll cover the 48 kilometres in 1 hour 5 minutes or so, depending on traffic conditions.
Want a hassle-free start to your break? Stay near Seoul Incheon International Airport. Whether you're boarding an early flight from Seoul to Techo International Airport or prefer not to rush, these hotels have you covered:
When it comes to the on-time performance of Seoul Incheon International Airport, data shows 74% of flights arrive within the expected time frame.

Seoul Gimpo International Airport (GMP)

Using public transport, you can travel from central Seoul to GMP in around 35 minutes. The airport is roughly 16 kilometres away, and making the journey by car takes approximately 30 minutes.
Want to treat yourself to an extra night away before your Seoul to KTI flight? Unwind in a hotel near Seoul Gimpo International Airport before your holiday officially starts. These stays are expecting you:
The majority of flights that leave Seoul Gimpo International Airport land at their destination as expected. It boasts an on-time performance rate of 80%.

About Techo International Airport (KTI)

After your flight from Seoul to Techo International Airport has landed, unwind and relax at a hotel close by. Zhuo' bo Hotel is a good option that's not too far from KTI.

How to find the cheapest flights from Seoul to Techo International Airport (KTI)

The cheapest price we've found for a one-way ticket from Seoul to Techo International Airport is $127. For a return flight on this route, the best price is $375. Depending on the availability when you book, these fares could change.
Booking ahead of time is often the key to finding a cheap flight from Seoul to KTI. Flight prices rise as demand increases, so the closer you get to departure, the more it could cost you.
Affordable Seoul to Techo International Airport tickets are easier to find when your dates are flexible. Use the 'Whole month' search function to compare fares across every month and then pick the cheapest day.
There's no need to check every day to find out if prices have dropped when you create a Price Alert. We'll let you know as soon as a lower fare pops up on plane tickets from Seoul to KTI.
Save money on your flight from Seoul to Techo International Airport by using filters. Choose your ideal times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seoul to Techo International Airport (KTI)

It's time to work out when to book your flight from Seoul to Techo International Airport (KTI). February is the peak month for travel to Phnom Penh. If you like your getaways a little more chill, head there in May.
The warmest month in Phnom Penh is March, with temperatures ranging between 23ºC and 38ºC. Book your Seoul to KTI plane ticket then if that's your ideal forecast.
If you'd rather travel in cooler conditions, look for a cheap ticket from Seoul to Techo International Airport in January when temperatures are between 20ºC and 33ºC.

More about Phnom Penh

When it comes to looking for somewhere to rest your head, you'll find the top stays in Phnom Penh right here. Explore these hotels once you've booked your flight from Seoul to Techo International Airport:
Royal Palace and Genocide museum are a couple of leading attractions to add to your Phnom Penh itinerary. Keep the adventure rolling by checking out Documentation Centre of Cambodia.

Explore more of Cambodia

Phnom Penh is always a good idea, but there are so many other parts of Cambodia you'll want to see. Around 177 kilometres southwest of Phnom Penh, a trip to Sihanoukville will keep you busy. Check out popular attractions like Otres Beach, Independence Beach and Sokha Beach.
Battambang is another standout destination in Cambodia and is around 274 kilometres northwest of Phnom Penh. No journey is complete without dropping by Phare Ponleu Selpak, Phnom Sampeau and Sammaki Art Space.