₹ 18,465 Cheap flights to Southeast Asia

Of the 20 airlines that fly to Southeast Asia, IndiGo, Air India and Thai AirAsia happen to be the most favoured based on our user data. IndiGo is the most popular among the three airlines, with 34% of users choosing them for their travels to Southeast Asia.

The best day to take a flight to Southeast Asia is on Thursday, followed by Monday. Thursday and Monday tend to have the lowest flight prices to Southeast Asia. If your travel dates are flexible, then try to avoid booking on a Sunday, which is known for being the most expensive day of the week to fly to Southeast Asia.

Prices for flights to Southeast Asia are updated daily.

As of July 2026, there are 38 operators available to choose from for flights to Southeast Asia.

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Southeast Asia.

The necessary travel and health documents for your Southeast Asia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.