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

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KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to Southeast Asia, as well as popular online travel agencies
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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 72 hours was to Bangkok, at S$ 86 return. The most popular route is from Phnom Penh (PNH) to Bangkok Suvarnabhumi Airport (BKK), and the cheapest round-trip airline ticket found on this route in the last 5 days was S$ 86.

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$ 249 on average. Morning departures are around 233% more expensive than evening flights, 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$ 849.

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$ 368, 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 November, when tickets cost S$ 113 (return) on average. On the other hand, the most expensive months are September and July, when the average cost of return tickets is S$ 416 and S$ 282 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.

If you are looking for a flight deal from Phnom Penh to Southeast Asia, look for departures on Fridays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Southeast Asia, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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 the flight from Phnom Penh to Southeast Asia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonMay
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 8% lower 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: Bangkok S$ 82 one-way - S$ 176 round-trip

Reviews of the top 3 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 1555 reviews
8.0Comfort
7.8Food
8.3Boarding
8.1Entertainment
8.6Crew
Airline reviews

The friendliness of the attendants, and the quality of the service.

10.0 ExcellentAnonymous, Jun 2026
LAX - NRT
Read more Singapore Airlines reviews

The friendliness of the attendants, and the quality of the service.

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

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

Food could have been better. Too many passengers getting up and down all the time.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

Good airlines, travelled 🧳 n Singapore multiple times and experience is consistent

Perfect experience from boarding through to leaving the flight, comfortable and personalised service from all staff, highly recommended

They close their counter so early. I had internet issues so I couldn’t check In online . I would have made the flight but their counter was closed 5 minutes before we arrived. No way of contacting them even though I had the confirmation number and tried to check in the night before on someone else’s phone. I tried calling their customer service with no pick up. Horrible experience, I’m very unhappy with them. I hope to never fly with them ever again. It costed me almost $900.

Airport lounge for business class is too crowded and not comfortable. Poor foods and facilities. Boarding was delayed. A lot of coughing people in the flight even in the business class, which indicated poor screening and health risks.

I was very impressed with this airline. The flight was comfortable the plane was clean and the attendants were very nice. The zipper on my suitcase broke after I checked it. The airline wrapped it in plastic wrap, so it wouldn’t continue to fall apart. Every item I had in the suitcase was there when I got to Los Angeles. That is above and beyond!

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

The plane was clean and well maintained the crew members were professionals and friendly and the food was good

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!

They were very pleasant and helpful. My husband and I were sitted apart. We asked if we could be seated together were told flight ws fuly booked but would try. After a while they were able to make it work we got seats together. Their food is good and attendents are very friendly/helpful.

First time flying Emirates and business class. What a civilized way to travel, everything was wonderful organized and relaxing. Thank you for providing the best first impression!

On time take off and early arrival, what else can one want

Didn’t like it at all. Cabin crew unfriendly. Very bad experience.

Staff were friendly, and provided great service. The food was plentiful and delicious. Food could have been hotter.

More space all around is practically essential on long international fights, and Emirates definitely delivers. But food selection and taste was only average. Otherwise, the flight was smooth and the cabin crew service was fine.

Manchester airport facilities for special assistance was nothing short of disgraceful. Not an Emirates issue but they should be made aware.

I thought I already provided this feedback. 12 hours with no wifi is unacceptable. Lay flat is nice but a bit cramped.

flight departure was late, with no updates on status of departure

Food and welcome services were good , however we experienced issues with the entertainment system and poor headsets

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate. I had to use a paper boarding pass as they do not like electronic boarding passes. I scanned my electronic pass, but the gate agent requested the paper pass. Luckily I had a paper pass, although my electronic pass worked and when the paper pass was scanned it stated I was already on board.

The check-in process was great, and I cannot remember the name of the supervisor, but he was good and told us about the transit process very correctly and efficiently and kindly. We were given down access and the overall process was very efficient.

We boarded the plane at 1:20 pm It was hot. There was no air-conditioning It was stifling They kept us on the plane sitting there for 1 hour and 10 minutes

No space in between the seats as per them the average height of human is 5’3” and weight as 55, so seats are designed as per the same. Also, the aircraft was dirty and full of insects

Vietnam airlines is just one step upper to the cheapest one (vietjet, if you wanted delays and cancel or feel like a criminal then vietjet is for you) for sure better customer cares and on time.

Inflight entertainment is limited. Boarding process is delayed and interrupted.

The flight was delayed and changed of boarding gates without notifying the passengers; no updates on electronic boards. Everyone had to wait for a very long time and tired. No food was served even though our ticket covered a dinner set. I got to my hotel after midnight. Terrible experience with this flight

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports