Great sale fare$80one-way
Typical low fare$100–$150one-way
Which airlines fly it cheapest
Lao Airlines, Vietnam Airlines.
The local trick
💡 Laos flights are pricey for the distance — the Hanoi→Vientiane sleeper bus is ~$25.
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.