Great sale fare$40one-way
Typical low fare$55–$85one-way
Which airlines fly it cheapest
VietJet, Thai AirAsia.
The local trick
💡 Fly into Hanoi, travel south through Vietnam, exit from Saigon — no backtracking.
Corridor intel — Within Southeast Asia
AirAsia, VietJet, Scoot, Cebu Pacific and Lion Air keep intra-SEA fares tiny — but bag fees can double a $30 fare, so pack carry-on. For trips under ~500 km, buses and trains (book on 12Go) are often cheaper, comfier and station-to-station.