Should I use a VPN to find cheaper flights?

In Southeast Asia, changing your VPN location rarely impacts price. The fare difference is usually due to currency conversion rates, not the user's location.

How strict are they about carry-on weight?

Very strict. AirAsia and Cebu Pacific will often weigh your carry-on at the boarding gate. If you are over the 7kg limit, you will be forced to pay a hefty fee to check the bag.

Is it cheaper to book a round trip?

No. Budget airlines in SE Asia price flights individually. Book two one-way tickets if it works out cheaper or fits your route better.

Booking Budget Flights Across Southeast Asia

Use AirAsia, VietJet, and Cebu Pacific directly through their own websites or apps to avoid third-party markups. Book 4 to 6 weeks in advance and travel on Tuesdays or Wednesdays to secure the lowest fares.

Install the regional carriers' apps. Download the apps for AirAsia, VietJet, Cebu Pacific, Scoot, and Bamboo Airways. These airlines often run 'App-Only' flash sales that offer 10-20% discounts not found on search engines.
Use search engines for comparison only. Use Google Flights or Skyscanner to identify which routes exist, but never book through the 'Book with' links provided. Once you find the flight, go directly to the airline’s website to complete the transaction.
Factor in ancillary costs. Budget airlines in SE Asia charge heavily for checked baggage and seat selection. A $30 flight easily becomes $80 once you add a 20kg bag. Always pre-purchase baggage online; paying at the airport counter is typically double the price.
Monitor 'Mega Sales'. Sign up for the AirAsia 'BIG' newsletter. They run quarterly sales where base fares drop to near-zero (excluding taxes/fees). These tickets sell out in minutes, so have your passport details saved in a note on your phone for quick copying.

Should I use a VPN to find cheaper flights?: In Southeast Asia, changing your VPN location rarely impacts price. The fare difference is usually due to currency conversion rates, not the user's location.
How strict are they about carry-on weight?: Very strict. AirAsia and Cebu Pacific will often weigh your carry-on at the boarding gate. If you are over the 7kg limit, you will be forced to pay a hefty fee to check the bag.
Is it cheaper to book a round trip?: No. Budget airlines in SE Asia price flights individually. Book two one-way tickets if it works out cheaper or fits your route better.