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Cheap Flights from Chiang Rai to Phnom Penh

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Compare Chiang Rai to Phnom Penh flight deals

Find the cheapest month or even day of the year to fly to Phnom Penh

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Flight deals from Chiang Rai to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Chiang Rai to Phnom Penh? Find the lowest prices on one-way and return tickets right here.
Phnom Penh.R 1,343 per passenger.Departing Wed, 21 May.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Chiang Rai on Wed, 21 May, arriving in Phnom Penh.Price includes taxes and charges.From R 1,343, select.
Phnom Penh.R 1,451 per passenger.Departing Fri, 27 Jun.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Fri, 27 Jun, arriving in Phnom Penh.Price includes taxes and charges.From R 1,451, select.
Phnom Penh.R 1,451 per passenger.Departing Tue, 1 Jul.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Tue, 1 Jul, arriving in Phnom Penh.Price includes taxes and charges.From R 1,451, select.
Phnom Penh.R 1,841 per passenger.Departing Sun, 7 Dec.One-way flight with Nok Air.Outbound indirect flight with Nok Air, departs from Chiang Rai on Sun, 7 Dec, arriving in Phnom Penh.Price includes taxes and charges.From R 1,841, select.
Phnom Penh.R 2,601 per passenger.Departing Fri, 8 Aug.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Fri, 8 Aug, arriving in Phnom Penh.Price includes taxes and charges.From R 2,601, select.
Phnom Penh.R 2,743 per passenger.Departing Sat, 8 Nov.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Chiang Rai on Sat, 8 Nov, arriving in Phnom Penh.Price includes taxes and charges.From R 2,743, select.

Find the cheapest month to fly from Chiang Rai to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chiang Rai to Phnom Penh flights are currently cheapest in May.
May
from R 1,343
Jun
from R 1,451
Jul
from R 1,451
Aug
from R 2,601
Sep
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Oct
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Nov
from R 2,743
Dec
from R 1,841
Jan
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Feb
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Mar
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Apr
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Chiang Rai to Phnom Penh: Alternative routes

Compare routes from Chiang Rai to Phnom Penh below. You may find an airport to fly into that's cheaper, faster, or easier than Phnom Penh.

Chiang Rai to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight foundR 1,343
Cheapest month to flyMay

Finding cheap flights from Chiang Rai to Phnom Penh: Frequently asked questions

The best price we found for a return flight from Chiang Rai to Phnom Penh is R 3,314. 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.
Currently, there are no airlines that fly direct from Chiang Rai to Phnom Penh. But we found flights with one or more stops from R 3,304.
As of May 2025, there are no flights flying from Chiang Rai to Phnom Penh.
The cheapest month to fly from Chiang Rai to Phnom Penh is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Rai Airport to Phnom Penh Airport on Tuesday, 1 July 2025.
No airlines currently offer direct flights between Chiang Rai Airport and Phnom Penh Airport. Most routes have one or more stops.
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 Phnom Penh 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.
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.
Currently, Thai AirAsia offers the cheapest flight tickets to Phnom Penh.

Travelling from Chiang Rai International Airport (CEI) to Phnom Penh International Airport (PNH): what you need to know

  • Phnom Penh's timezone is UTC+7, which is the same as Chiang Rai.

  • Leave plenty of time to catch your CEI to PNH flight. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for bigger queues during popular months like April. Arriving up to four hours in advance for international flights and two hours for domestic departures is a good idea.

  • Take a detour to a new city or break up your flight with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Chiang Rai International Airport to Phnom Penh International Airport. Many travellers pass through Suvarnabhumi Airport when flying between CEI and PNH.

How to find the cheapest flights from Chiang Rai International Airport (CEI) to Phnom Penh International Airport (PNH)

  • At the moment, R 1,347 is the lowest price we've seen for a one-way Chiang Rai International Airport to Phnom Penh International Airport flight. The best price for a return ticket is R 3,304. Remember that fares could change due to demand at the time of booking.

  • Don't leave everything to the last minute. You're more likely to get cheap tickets from CEI to PNH if you book in advance. Airlines often offer some excellent early bird deals.

  • The 'Whole month' tool shows you the cheapest flights from Chiang Rai International Airport to Phnom Penh International Airport across the month. It's a good way to find a bargain if your trip dates aren't set in stone.

  • You won't have to check back in every day to see if fares have gone down when you create a Price Alert. We'll let you know as soon as there's a change in price on cheap flights from CEI to PNH.

  • Tailor your trip with filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Chiang Rai International Airport to Phnom Penh International Airport.

Handy information about Chiang Rai International Airport (CEI)

  • Of all flights leaving Chiang Rai International Airport, 73.36% arrive as scheduled at their destination.

  • Central Chiang Rai to Chiang Rai International Airport is approximately 8 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Get your trip off to a leisurely start by staying near CEI. Whether you're boarding an early flight from Chiang Rai International Airport to Phnom Penh International Airport or just don't like being rushed, these stays have you covered:

Arriving at Phnom Penh International Airport (PNH)

  • Consider staying in a hotel close to PNH if you're taking a late Chiang Rai International Airport to Phnom Penh International Airport flight. Pick one of these options and skip the long transfer after landing:

  • Get on the fast track to adventure by picking up a Phnom Penh International Airport rental car. Grab a set of wheels from Europcar, Avis or Budget to explore Phnom Penh and beyond.

  • Lock in the best possible rate by booking your ride from Phnom Penh International Airport about one week ahead of your departure.

Getting from Phnom Penh International Airport (PNH) to central Phnom Penh

  • From Phnom Penh International Airport, Phnom Penh is approximately 11 kilometres away. It takes around 30 minutes to reach the centre driving.

When to fly to Phnom Penh International Airport (PNH)

  • It's time to work out your dates for your flight from Chiang Rai International Airport to Phnom Penh International Airport. August is the busiest month to head to Phnom Penh. If you like a more laid-back vibe, go in February.

  • Before locking in your flight from Chiang Rai International Airport to Phnom Penh International Airport, think about the kind of weather you like. March is the warmest month in Phnom Penh, with the temperature ranging from 23ºC (73ºF) to 38ºC (100ºF).

  • January has average temperatures of between 20ºC (68ºF) and 33ºC (91ºF). Search for cheap tickets from CEI to PNH sometime around then if you like travelling in cooler conditions.

Explore more of Cambodia

  • You've visited Phnom Penh, now it's time to explore other parts of Cambodia. Journey around 193 kilometres south-west to Sihanoukville to check off its popular sights. From Ochheuteal Beach to Wat Leu Temple and Wat Krom Temple, there's plenty to keep you on the go.

  • Around 257 kilometres north-west of Phnom Penh, Battambang is another essential stop in Cambodia. Start your sightseeing at The Garden of SamDech Sar Kheng, Spean Thmor Chas and សួននាគសន្តិភាព-Dragon Peace Garden.

Plan the rest of your trip from Chiang Rai to Phnom Penh

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.