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Siem Reap

Cheap flights from Phnom Penh to Siem Reap, Cambodia (KTI - SAI)

KTI — SAI
Aug 9 — Aug 161
Sun 8/9
Sun 8/16
1 adult, Economy
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Cheapflights Tip: The best prices from Phnom Penh Techo Intl to Siem Reap–Angkor Intl are usually found in July or January, booked 63 days in advance, depart on a Monday or Sunday and return on a Saturday

Find flight deals from Phnom Penh to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (KTI) to Siem Reap (SAI). 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 10, 2026.

Popular in

April

Cheapest in

July

Average price

$116
Highest demand for flights based on searches. 11% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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 Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap 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 Siem Reap

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

The best time to book flights from Phnom Penh to Siem Reap is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, July is the cheapest month in which you can book a flight from Phnom Penh to Siem Reap (average of $116). Flying from Phnom Penh to Siem Reap in April is currently the most expensive (average of $210). 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 SAI?

Find hourly flight availability from Phnom Penh to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 10, 2026.

It’s typically best to fly out from Phnom Penh to Siem Reap in the evening. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Phnom Penh to Siem Reap?

Use this chart to determine the cheapest time to fly round-trip from Phnom Penh to Siem Reap. Price data was last updated on July 4, 2026.

Travelers seeking maximum savings on their Phnom Penh to Siem Reap flight should consider departing on Monday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How popular is this Phnom Penh to Siem Reap flight route?

    The Phnom Penh Techo Intl to Siem Reap–Angkor Intl flight path was viewed by 23 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Cambodia Airways ($85), and Cambodia Angkor Air ($99) offers the cheapest pricing from Phnom Penh to Siem Reap. Cambodia Airways is 51% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The top 3 most reliable airlines when flying from Phnom Penh to Siem Reap are Cambodia Angkor Air (93%), Vietnam Airlines (93%) and Etihad Airways (93%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phnom Penh to Siem Reap 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 Siem Reap?

    Currently, July is the cheapest month in which you can book a flight from Phnom Penh to Siem Reap (average of $116). Flying from Phnom Penh to Siem Reap in April is currently the most expensive (average of $210). 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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Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Phnom Penh to Siem Reap

Discover the top 2 airlines that operate flights from Phnom Penh to Siem Reap. 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 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cambodia AirwaysCheapest$85Average$112FlexibilityNo cancel feeOn-timeN/A
Cambodia Angkor AirCheapest$99Average$179FlexibilityNo cancel feeOn-timeN/A

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