Hong Kong to Vientiane: buy now or wait?
Your call FareScore 41/100
HK$1,409 ≈ €160 Today's best fare
Cheaper than 41% of what we have seen
9 Dec Vietjet With a stop
Usually HK$1,400 Cheapest in October (~HK$1,378)
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All fares Hong Kong → Vientiane
Cheapest first. Every price is live and goes straight to booking.
9 Dec
11:50
Vietjet · 23h 10m
With a stop
€160
17 Nov
08:10
Hainan Airlines · 5h 25m
With a stop
€162
24 Nov
08:10
Hainan Airlines · 5h 25m
With a stop
€172
26 Nov
08:10
Hainan Airlines · 5h 25m
With a stop ↓4%
€179 €172
3 Dec
08:10
HU · 5h 25m
With a stop
€180
13 Jan
12:25
Thai Lion Air · 19h 00m
With a stop
€189
8 Jan
12:25
Thai Lion Air · 12h 05m
With a stop
€190
What the history says
Prices recorded 87
Typical price €159
Lowest we saw €145
Based on 87 prices we recorded on this exact route, compared against the same departure month.
Best booking window
0–13 days — is when this route has been cheapest to book: €157 typical, on 18 observations.
Cheapest months to fly to Vientiane
October €157 20 observations
November €159 31 observations
December €160 28 observations
Booking tips from our fare data
- How far in advance should you book a flight?
- Book 1–1.5 months before departure. Tracking the same flights at every lead time (97,668 flights on 19,841 routes, 2026-06-14 to 2026-11-05), that window had the smallest average premium over each flight's lowest fare: +16.7%, against +49.3% in the last 3 days.
- What is the cheapest day of the week to fly?
- Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.5% and Tuesday +4.3%, while Friday was the dearest at +10.5%. Weekend departures cost more than midweek ones.
- What is the cheapest month to fly?
- November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +22.7%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-05.
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