KTI

$332 Find Cheap Flights to Phnom Penh – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
$630
Typical prices: $915-$1,529
Singapore Airlines
Mon 26/2Mon 26/3
PER - KTI • 1 stop
Cheapest one-way flight
$249
Typical prices: $493-$930
Multiple Airlines
Wed 17/1
PER - KTI • 2 stops
Top airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
When to book
in advance
Our data shows that travellers who book at least 16 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Phnom Penh!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Phnom Penh

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Phnom Penh

Fri, 26 Feb - Fri, 26 Mar
Singapore Airlines Logo
06:40 - 13:45Perth  Perth-Phnom Penh Phnom Penh Techo Intl
8h 05m1 stop Singapore Changi
Singapore Airlines Logo
19:40 - 05:25Phnom Penh  Phnom Penh Techo Intl-Perth Perth
8h 45m1 stop Singapore Changi
$630Singapore Airlines
2 days ago
Fri, 26 Feb - Fri, 26 Mar
Singapore Airlines Logo
06:40 - 13:45Perth  Perth-Phnom Penh Phnom Penh Techo Intl
8h 05m1 stop Singapore Changi
Singapore Airlines Logo
14:40 - 05:25Phnom Penh  Phnom Penh Techo Intl-Perth Perth
13h 45m1 stop Singapore Changi
$631Singapore Airlines
2 days ago
Thu, 5 Nov - Thu, 12 Nov
China Southern Logo
23:25 - 15:05Perth  Perth-Phnom Penh Phnom Penh Techo Intl
16h 40m1 stop Guangzhou Baiyun
China Southern Logo
08:00 - 21:35Phnom Penh  Phnom Penh Techo Intl-Perth Perth
12h 35m1 stop Guangzhou Baiyun
$683China Southern
3+ days ago
Mon, 19 Oct - Thu, 12 Nov
Multiple Airlines Logo
23:15 - 09:45Perth  Perth-Phnom Penh Phnom Penh Techo Intl
11h 30m1 stop Kuala Lumpur Intl
Multiple Airlines Logo
17:25 - 05:50Phnom Penh  Phnom Penh Techo Intl-Perth Perth
11h 25m1 stop Kuala Lumpur Intl
$710Multiple Airlines
2 days ago
Wed, 3 Feb - Wed, 24 Feb
China Southern Logo
23:25 - 10:50Perth  Perth-Phnom Penh Phnom Penh Techo Intl
12h 25m1 stop Guangzhou Baiyun
China Southern Logo
08:00 - 21:35Phnom Penh  Phnom Penh Techo Intl-Perth Perth
12h 35m1 stop Guangzhou Baiyun
$719China Southern
2 days ago
Fri, 26 Feb - Fri, 26 Mar
Multiple Airlines Logo
20:40 - 21:55Perth  Perth-Phnom Penh Phnom Penh Techo Intl
26h 15m2 stops Denpasar Bali Ngurah Rai Kuala Lumpur Intl
Multiple Airlines Logo
10:35 - 05:25Phnom Penh  Phnom Penh Techo Intl-Perth Perth
17h 50m1 stop Bangkok Suvarnabhumi
$733Multiple Airlines
2 days ago
Wed, 21 Oct - Tue, 3 Nov
Vietnam Airlines Logo
11:15 - 16:55Sydney  Sydney Kingsford Smith-Phnom Penh Phnom Penh Techo Intl
33h 40m1 stop Ho Chi Minh City
Vietnam Airlines Logo
17:30 - 13:15Phnom Penh  Phnom Penh Techo Intl-Sydney Sydney Kingsford Smith
15h 45m2 stops Vientiane Wattay Hanoi Noibai
$827Vietnam Airlines
2 days ago
Thu, 5 Nov - Mon, 23 Nov
Vietnam Airlines Logo
00:50 - 13:00Melbourne  Melbourne-Phnom Penh Phnom Penh Techo Intl
16h 10m2 stops Hanoi Noibai Vientiane Wattay
Vietnam Airlines Logo
20:00 - 22:50Phnom Penh  Phnom Penh Techo Intl-Melbourne Melbourne
22h 50m1 stop Hanoi Noibai
$847Vietnam Airlines
3+ days ago
Fri, 6 Nov - Sat, 21 Nov
Shenzhen Airlines Logo
22:15 - 10:40Melbourne  Melbourne-Phnom Penh Phnom Penh Techo Intl
16h 25m1 stop Shenzhen
Shenzhen Airlines Logo
11:40 - 13:00Phnom Penh  Phnom Penh Techo Intl-Melbourne Melbourne
21h 20m1 stop Shenzhen
$850Shenzhen Airlines
3+ days ago
Fri, 13 Nov - Fri, 11 Dec
Shenzhen Airlines Logo
22:15 - 10:40Melbourne  Melbourne-Phnom Penh Phnom Penh Techo Intl
16h 25m1 stop Shenzhen
Shenzhen Airlines Logo
11:40 - 13:00Phnom Penh  Phnom Penh Techo Intl-Melbourne Melbourne
21h 20m1 stop Shenzhen
$850Shenzhen Airlines
3+ days ago
Booking Insights

Price, demand, and travel trends for flights to Phnom Penh

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to Phnom Penh?

Perth to Phnom Penh is the cheapest route at $630 return, found in the past 5 days on KAYAK. Melbourne Airport to Phnom Penh is the most popular connection with return deals from $850.

What is the cheapest day to fly to Phnom Penh?

Wednesday is the cheapest day to fly to Phnom Penh at $1,120 return on average over the past 12 months on KAYAK. Tuesday is the most expensive at $1,324.

What is the cheapest month to fly to Phnom Penh?

•February is the cheapest month to fly to Phnom Penh with an average price of $891 return.
•December ($1,722) and June ($1,232) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Phnom Penh?

Morning flights to Phnom Penh are the cheapest at $1,159 return on average. Afternoon flights are the most expensive at $1,307.

When are flights to Phnom Penh the cheapest?

Flights to Phnom Penh are cheapest 16 weeks before departure. Booking in this window typically costs about 34% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to Phnom Penh

Low season

September

Cheapest flight

$249
Beat the crowds with an average 38% drop in traveller numbers.
The most popular month to fly with an average 156% increase in traveller numbers.
One-way flight from Perth to Phnom Penh

When to book flights to Phnom Penh

Are your dates flexible? Find out the best times to travel to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Phnom Penh, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Phnom Penh is a good deal?

    A good deal on a flight to Phnom Penh is around $915 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • Which city has the cheapest flights to Phnom Penh?

    Based on fares booked in the past 5 days, the cheapest flights to Phnom Penh are from Melbourne, starting at $850 return.

  • How expensive are last-minute flights to Phnom Penh?

    Last-minute fares to Phnom Penh (booked within two weeks of departure) are typically 17% higher than the average return fare of $1,168.

  • What is the difference between the most popular and the most frequent airline at Phnom Penh?

    Thai Airways operates the most flights from Australia to Phnom Penh at 0 per week, while Singapore Airlines is the airline most often selected by KAYAK users searching for flights from Australia to Phnom Penh. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

Your guide to booking Phnom Penh flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Phnom Penh, book around 16 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 34% lower during this window than last-minute fares.
  • For flights to Phnom Penh, a good return fare is around $915. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Phnom Penh in February. Return fares historically average $891, making February the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to $148 on a return flight. Morning flights to Phnom Penh average $1,159 compared to $1,307 for midday flights.

Reviews of the top 5 airlines flying to Phnom Penh

 
Need help choosing which airline to fly with to Phnom Penh? 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 1624 reviews
8.0Comfort
8.6Crew
8.3Boarding
7.8Food
8.1Entertainment
Airline reviews

I had the worst experience of my life in travel. Due to circumstances beyond my control (catastrophic traffic accidents on the highway between Gold Coast and Brisbane) I missed my flight for the first time ever. Because I booked through Kayak Singapore Airlines were not interested in helping me. They told me to contact the agent that I booked through. I was extremely stressed as I had connecting flights in Europe. First Kayak told me that the next available flights were in four days time. Then they told me that they could do it but at a cost of $2600 AUD. When I agreed he told me that he was having trouble getting it through Singapore’s system and he would contact me further once it had been done. When I had not heard from him after several hours, I phoned Kayak again, spoke to a different person who said he could do it for $8200. I declined and told him to cancel the booking. The worst part of this experience was that I had booked 5 flights altogether with Singapore including Premium Economy on two legs and Singapore cancelled all my flights including the return legs leaving me with having to completely reschedule my entire trip. Kayak refunded me $2000 from $5200, obviously leaving me out of pocket. This has left me feeling that I will never deal with Kayak or Singapore Airlines again.

2.0 MediocreJanine, July 2026
Read more Singapore Airlines reviews

I had the worst experience of my life in travel. Due to circumstances beyond my control (catastrophic traffic accidents on the highway between Gold Coast and Brisbane) I missed my flight for the first time ever. Because I booked through Kayak Singapore Airlines were not interested in helping me. They told me to contact the agent that I booked through. I was extremely stressed as I had connecting flights in Europe. First Kayak told me that the next available flights were in four days time. Then they told me that they could do it but at a cost of $2600 AUD. When I agreed he told me that he was having trouble getting it through Singapore’s system and he would contact me further once it had been done. When I had not heard from him after several hours, I phoned Kayak again, spoke to a different person who said he could do it for $8200. I declined and told him to cancel the booking. The worst part of this experience was that I had booked 5 flights altogether with Singapore including Premium Economy on two legs and Singapore cancelled all my flights including the return legs leaving me with having to completely reschedule my entire trip. Kayak refunded me $2000 from $5200, obviously leaving me out of pocket. This has left me feeling that I will never deal with Kayak or Singapore Airlines again.

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

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Headwind delayed our flight which wasn’t the airlines fault

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

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

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

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.

Crews are not allowed to perform any service whenever the captain deems there’s a chance of turbulence. Even if it is perfectly smooth air.

Boarding was too soon because we arrived 10’ after boarding began and they were already giving ‘final call’. We just made it. We were at gate 35 minutes before the flight. Also, the departure communication board did not list the flight at all so we didn’t know boarding had already started.

Boarding and deviating was mediocre. At boarding they have not prioritized Business class. During debarking they prioritized premium economy. Also bus rides both times.

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

This is a very short commuter flight, so there is no food or flight entertainment. Hence, I marked it in the neutral flight left on time. The plane was full pretty much and it was a pretty easy flight overall very good.

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

Lovely staff, comfortable seats. Transit time was short but they had great processes in place to get us on the plane.

2 hours delay, time changes started already 2 days before the flight

I am a bit upset with the check in counter, I signed up a wheelchair for my mom so they wouldn’t grant us her boarding pass. We got to the airport a couple of hours earlier and they had us wait and no one ever gave us her boarding pass or the wheelchair, I had to go back and complain when it was already time for our flight to board. Since we got their earlier, I could have easily pushed my mom myself and we could have relaxed and went to the lounge while waiting… when I finally got someone to help us he couldn’t explain how and why they dismissed us in the first place.

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.

The most attentive crew and although we were a little late leaving ( missing passenger) flight experience more than compensated . Best flight attendants I have flown with in 50 years !!

It was very good. I liked the service and food, especially the hot meals.

Check in was awful.., Desks gone….it was a cheap chaotic environment not the usual seated staff member not there….instead a staff little platform…(staff were good) the whole thing reeked of cheap penny pinching- underwhelmed

Flight was kept super cold. I was shivering and had to layer up.

I love the comfortable business class seats. The service was excellent. Staff was friendly.

Food , drink experience were great with Cathay. Crew service was excellent. Clean toilet and full snack bars always, pilot took of 26minutes later when boarding at Hong Kong with extra US customs check at gate 9 for US flight, but he managed to arrive only 2 minutes later from flight tracker. Smooth flight .

If I had blood clots, that window seat would've killed me for certain.

The crew staffs are very nice. The temperature is too low.

The crew were fine. I didn’t enjoy the food at all. I found it unappetising and really had trouble eating it. The comfort level was fine and our return flight is with Cathay Pacific but honestly I probably wouldn’t fly Cathay Pacific again.

We requested special assistance and Cathay Pacific provided it in Sydney, but we were completely forgotten about in Hong Kong - when we really needed the help to catch our connecting flight. Really disappointing service.

The staff were excellent considering it was a jam packed flight. We had to wait nearly an hour for our baggage to appear on the carousel. That was a real shame.

Seats not comfortable. We had requested vegan meal and it wasn’t given.

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Crew: Everybody was polite. People just need to get efficient and less reworking things. Entertainment: Could have move movies and games. The “music” section is a joke, only ONE available. Food: The food provided on the flights boarding in china needs a serious reworking. Too much oil, bad for your stomach, tastes too artificial and the eggs were a giant mass of green dough.

Food was terrible. Fish was equal to a sausage and scrumbled eggs were terribly green with a quite weird fllavour. Everybody with me hated all options. The best food was the bread with butter.

No good but was short flight. Both of our China Southern flights were on time. No surprises.

The food was perfect. The boarding process is a bit long. Given the late boarding time, I felt very tired by the time I was seated.

Overall experience is good but if the food menu can change to authentic Malaysia food will be good. I.e. Nasi Lemak, Char Kueh Tiew and etc

Food was good but only 1 meal and 1 pie, instead of 2 meals. Both legs were late.

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

Did not take as cancelled 3 time so took another airline

It was a 2-hour flight so they didn't have much time for serving food. There was some turbulence so they could not serve hot coffee or tea for the safety reason. Good service, good tasting food, nice plane, a little bit of delay.

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

Delayed, not enough information. Had to ask for refreshments, crew could have been more proactive

Orange juice change to mineral water . Should keep the orange juice.

I had purchased extra leg room for all legs of the flight but due to a delay in leaving Perth I was put on another flight but with Emirates. My luggage was initially lost but later found and my suitcase was broken. I ended up losing my upgrades

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