Find Cheap Flights from Phnom Penh to Southeast Asia – Compare and Save

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KAYAK's insights & trends for Phnom Penh to Southeast Asia flights

Get data-powered insights and trends into flights from Phnom Penh to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Phnom Penh to Southeast Asia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Southeast Asia from Phnom Penh found in the last 5 days was to Bangkok, at S$ 160 return. The most popular route is from Phnom Penh (KTI) to Singapore (SIN), and the cheapest return airline ticket found on this route in the last 5 days was S$ 248.

What is the cheapest time of day to fly to Southeast Asia?

The average price for all round-trip flights from Phnom Penh to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost S$ 248 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 356.

Can I save money by flying with a stopover from Phnom Penh to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 408, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Phnom Penh to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phnom Penh to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phnom Penh to Southeast Asia is August, when tickets cost S$ 98 (return) on average. On the other hand, the most expensive months are July and April, when the average cost of return tickets is S$ 525 and S$ 362 respectively.

What’s the cheapest day of the week to fly from Phnom Penh to Southeast Asia?

The average price of all round-trip flights from Phnom Penh to Southeast Asia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Southeast Asia on a Thursday and more expensive on a Sunday. On your return trip to Phnom Penh, you should consider flying back on a Sunday, and avoid Saturdays for better deals.

How far in advance should I book a flight from Phnom Penh to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phnom Penh to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Phnom Penh to Southeast Asia, you should book around 3 weeks before departure, which saves you about 17% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonAugust
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (1% more expensive on average)

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Phnom Penh to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phnom Penh to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phnom Penh to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Phnom Penh to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phnom Penh to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Phnom Penh to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phnom Penh to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Phnom Penh to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Southeast Asia

  • Looking for a cheap flight? 25% of our users found tickets from Phnom Penh to the following destinations at these prices or less: Singapore S$ 141 one-way - S$ 248 round-trip

Reviews of the top airlines flying from Phnom Penh to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Phnom Penh to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phnom Penh to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1564 reviews
8.0Entertainment
7.8Food
8.3Boarding
8.0Comfort
8.6Crew
Airline reviews

Crew were so busy Anna so awesome. I was in a seat that got my food nearly last but the crew were Just awesome.

8.0 ExcellentMatt, Jun 2026
BNE - SIN
Read more Singapore Airlines reviews

Crew were so busy Anna so awesome. I was in a seat that got my food nearly last but the crew were Just awesome.

Excellent crew service. Professional, courteous. Service with a smile. Good food Very decent flight experience

Excellent service. I pre-ordered gluten intolerant meal and they handle it with care. They served me my meal before other people's to avoid crossed contamination. Thank you 🙏

a completely full flight - felt quite carmped in, despite being on the window seat. Meal served could better. Surely different from pre-covid trips I used to take to and from Bangkok.

Wish the seat don’t have restrictions, can’t fully insert backpack all the way inside.

The food options and quality could use some more excitement and variety.

Excellent- a lot of food Disappointed with the premium economy pouch- did not have toothbrush and tooth paste or socks. Other airlines provide them

The overall operation needs to be improved. The in-flight services took forever and sometimes ran out of options.

We started with a 2 hour delay due to some airplane technical issues, and while we got a little snack pack, it was a pretty long delay for SQ. The flight itself was short, there's no entertainment on the B737-800 and there's a small snack. Functional.

The food provided was not as good in the previous trips!

Very nice experience in business class. Flight attendants were attentive. Foods and beverages were very good.

The plane was old so the entertainment system was difficult to operate. The crew did advise earlier. The plane was landed and parked away from the gates, which added 20+ mins to the overall arrival

everything was great. I don't use on-board entertainment at all (I just read or sleep), but I appreciate that I couldn't hear anyone else's!

I was not allowed to upgrade with miles whereas others were. That’s a pity

The flight experience was good, but connection time was cut shorted because of delayed start.. it would have been helpful if the flight showed which gate/terminal we need to go for connecting flight and flight timing was less than 30 minutes to connect which made ourselves stressful to catch next flight 😔

Worst ever. No assistance and communication from Emirates crew. No visibility of when the flight is flying. Couldn’t understand if we can go to lounge to take rest. Emirates system at a certain point said flight is not operating and suggested to take the next flight and in few minutes it suddenly opened the gate for boarding. unsupportive and rude crew. Worst experience ever. Flight was delayed by 5 hours so need the compensation for that.

No entertainment u less you pay. Wish there were some free movies

Overall emirates continues to amaze me with their. Awesome service . I had shifted away from emirates , because I lost luggage and watch in emirates in 2019 that drifted me away from this airline , but I am willing to give it try

Overall experience was bad , one does not expect after travelling for 14 hrs in Boing 777-300 ER to be pushed in to a craft with a extermly poor seating pitch, no room for hand baggage in the luggege bins and extermly poor service quality. This patch made my overall expereince mediocre and would definetly look for better choices when flying in or out of Delhi in future.

You can improve in many ways First the crew in general is good, but needs to work with passion to their works not like robots Second, collecting the ear headphones long time before landing is strange The crew should deal with the passengers with respect and descent way not like giving orders

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports