Laos has no direct long-haul flights from Europe or Australasia. The practical entry model for all non-Asian visitors is a hub connection through Bangkok, Hanoi, Singapore, or Kuala Lumpur, with Vientiane Wattay International (VTE) or Luang Prabang International (LPB) as the final destination. The hub choice drives the overall price and convenience, and it is worth optimising before booking anything.

Bangkok’s Suvarnabhumi is the most-used hub for Laos. Thai Airways, Bangkok Airways, and Lao Airlines all fly Bangkok-Vientiane in approximately one hour; fares run $60-$120 one-way with advance booking. Bangkok-Luang Prabang direct is around ninety minutes on Bangkok Airways and sits at $80-$140 one-way. Bangkok is the correct hub choice if your itinerary includes Thailand or if the Bangkok airfare is cheapest from your origin. The total London-Bangkok-Luang Prabang routing runs approximately £600-£900 return, with the Bangkok connection contributing £90-£150 to the total.

Hanoi is the alternative hub for northern Laos entries — Vietnam Airlines and Lao Airlines fly Hanoi-Luang Prabang at $80-£130 one-way, and the flight is under an hour. For an itinerary that includes Vietnam, routing London-Hanoi-Luang Prabang and returning home from a southern entry (HCMC or Bangkok) is a natural two-country open-jaw.

Singapore and Kuala Lumpur also connect to Vientiane and Luang Prabang. Silk Air (Singapore Airlines regional) and AirAsia serve these routes. KL-Vientiane via AirAsia X is often price-competitive at $60-$100 one-way and can be the cheapest option when AirAsia’s promotional fares are active. Run the Singapore and KL hub options on Aviasales alongside Bangkok and Hanoi before committing.

Luang Prabang versus Vientiane as the primary entry is an itinerary question rather than a price question. Vientiane is the capital and the correct entry for southern circuit (Vang Vieng, 4,000 Islands, Pakse); Luang Prabang is the UNESCO heritage city in the north and is the correct entry for most first-time visitors. Note that the two cities are four to six hours apart by road; domestic flights on Lao Airlines connect them in forty-five minutes for approximately $50-$80 one-way. If the itinerary covers both north and south, flying in via Luang Prabang and out via Vientiane (or Bangkok) is a cleaner geographic flow.

Aviasales is the essential tool for Laos routing because the multi-carrier combination (European long-haul + Asian hub flight + Lao regional leg) exceeds what any single airline site shows. The Aviasales matrix search handles Bangkok-hub, Hanoi-hub, and Singapore-hub options simultaneously and surfaces AirAsia’s promotional pricing that changes frequently. Kiwi.com is worth running in parallel specifically because the Lao Airlines legs are not well-integrated into major GDS systems — Kiwi often prices the full combination (London long-haul + Bangkok + Luang Prabang domestic) in a single view. Once the routing is identified, book the long-haul international leg direct with the carrier; book the Bangkok-Luang Prabang or Hanoi-Luang Prabang leg direct with Bangkok Airways, Lao Airlines, or Vietnam Airlines — all have functional booking sites for the regional leg.

One practical note: the Laos e-Visa (available on arrival at major airports) costs $35-$42 USD depending on nationality. Budget this as a fixed cost alongside the flight; it is not included in airfares.