Find Cheap Flights from Siem Reap to Southeast Asia – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 16% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Best Southeast Asia Flight Deals from Siem Reap

Cheapest return prices found by our users on KAYAK in the last 5 days
Chiang Mai
Chiang Mai1 stop฿8,359
Phuket City
Phuket Citydirect฿6,767
Krabi
Krabi1 stop฿12,439
Ko Samui
Ko Samui1 stop฿13,036
Chiang Mai
Chiang Mai1 stop฿8,359
Phuket City
Phuket Citydirect฿6,767
Krabi
Krabi1 stop฿12,439
Ko Samui
Ko Samui1 stop฿13,036
Booking Insights

KAYAK's insights & trends for Siem Reap to Southeast Asia flights

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

What is the cheapest Siem Reap to Southeast Asia flight route?

The cheapest ticket to Southeast Asia from Siem Reap found in the last 5 days was to Bangkok, at ฿6,269 return. The most popular route is from Siem Reap (SAI) to Bangkok Don Mueang Intl Airport (DMK), and the cheapest return airline ticket found on this route in the last 5 days was ฿6,269.

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

The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost ฿7,047 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is ฿12,308.

Can I save money by flying with a stopover from Siem Reap to Southeast Asia?

No, with an average price for the route of ฿8,995, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Siem Reap to Southeast Asia?

The cheapest month for flights from Siem Reap to Southeast Asia is August, when tickets cost ฿6,369 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is ฿9,089 and ฿8,193 respectively.

What’s the cheapest day of the week to fly from Siem Reap to Southeast Asia?

If your flying dates are flexible, you should consider flying to Southeast Asia on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Siem Reap to Southeast Asia. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

How far in advance should I book a flight from Siem Reap to Southeast Asia?

To get a below-average price on a flight from Siem Reap to Southeast Asia, you should book around 6 weeks before departure, which saves you about 17% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low season

September
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.

Flights from Siem Reap to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Siem Reap to Southeast Asia 
Verified travelerFlew with Bangkok Airways-Mar 2026
Bring water and snack or stuff if you get board on short flights
Verified travelerFlew with VietJet Air-Jun 2025
warn passenger about the correct name and middle name necessity in the visa application for Vietnam

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Siem Reap 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 Siem Reap to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Siem Reap 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 Siem Reap 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 Siem Reap 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 Siem Reap 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 Siem Reap 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 Siem Reap to the following destinations at these prices or less: Bangkok ฿3,663 one-way - ฿7,970 round-trip

Reviews of the top airline flying from Siem Reap to Southeast Asia

 
Need help choosing which airline to fly with from Siem Reap 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.
5.6
VietJet AirOverall score based on 174 reviews
6.6Crew
4.7Food
4.0Entertainment
5.3Comfort
6.0Boarding
Airline reviews

The flight was OK, but you need to warn passengers going to Vietnam that the full first, middle and last name needs to be in the issued visa, At least 5 passengers on that pane did not have that. We all had to pay $298 each to some agent to amend the visa. At least one lady could not and was left behind.

2.0 MediocreAnonymous, Jun 2025
Read more VietJet Air reviews

The flight was OK, but you need to warn passengers going to Vietnam that the full first, middle and last name needs to be in the issued visa, At least 5 passengers on that pane did not have that. We all had to pay $298 each to some agent to amend the visa. At least one lady could not and was left behind.

Our flight was 3 hours delayed and the airport was hectic as our boarding pass said one gate while the digital screens said another gate. Attendants were clueless and said to watch both! Vietjwt cared more about selling their merch than even providing any water for the 2 hour flight

Cheap flight but more expensive when the airlines demands you pay over 30$ for 1 kilogram overweight ( it is 8,2kg I have for carry on baggage) The flights announcement 2PM, and it departed 4 PM, no announcement for delaying, People says Vietjet is delayJet airlines in their blood.

If there could be simple free food or snack or some entertainment.

In experience we didn't even get water unless it was paid for. Even Bamboo Airlines provided free water. The flight was cold with no blanket being provided. The flight attendants were not responsive in keeping the passengers under control. I complained about fellow passengers playing loud music several times before one of the flight attendants to action. I will not recommend flying with Vietjet unless things improve.

No water or snacks. Crew did not give us arrival cards. There was no need for more than 1 flight attendant as they did not do anything

They do not even give you water. Have to pay for that and not cheap. Staff had some friendly and some very unfriendly. Terrible experience

The plane stayed hot the entire time, no leg room, no entertainment. Definitely a budget airline experience.

Trip was only 40 minutes in duration....no food and no entertainment. Otherwise it was excellent!

Maybe there was something wrong with pressure sensor or something. my ear was very uncomfortable and many babies were crying like hell. It happened during landing.

More options for your flight to Southeast Asia

Complete your trip to Southeast Asia with a hotel stay or car hire