Route brief · LON → HAN
London → Hanoi
$481
−7% vs typical
seasonal median $520 · difference $39
Nov 13 – Nov 20 · 7 nights
Air China1 stop
- Usual monthly lows
- $485–$590
- Board rank
- Stronger than 11%
- Route sample
- 6 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefHANHanoiOld-quarter alleys, motorbike tides and the country’s best food — and Ha Long Bay two hours out.Best windowOct–Nov · Mar–AprAirportsNoi Bai (HAN)All routes into HanoiWhen this route gets cheap.
Cached-fare history: across 6 months, Nov is the cheapest for LON → HAN. Best time to be there: Oct–Nov · Mar–Apr.
Fares bottom out in November around $481 and peak in April near $759 — a $278 spread across the 6 months we track. The cheapest itinerary we are tracking makes one stop and takes about 14 hours outbound, on a 7-night trip — ticketed under Air China, which on a connecting fare need not operate every leg. At $481 for 9,234 km each way, that works out to about $26 per 1,000 km flown. That is well under the $44 that long-haul fares on this board typically run. Across the 21 departure cities we track at a similar distance from Hanoi, this fare ranks 2nd — 3% above the $468 from Milan. That puts it in the cheaper half of the 36 routes of similar length we watch out of London, where the middle fare is $661.
Day-level prices for the next 4 months
Tap any day → live search
The median cached fare across this calendar is 5% higher than when tracking began on Aug 8 — $561 then versus $590 now, across 6 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $469, on Nov 30.
Cached day-level data for this route is sparse — 15 of 122 days priced, from 26 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
September 2026
December 2026
Cheapest in Nov · around $481
7% below the $520 typical fare
Cheapest round-trip fare found per month · London → Hanoi · cached-price history
Route facts
- Airports
- Heathrow (LHR) · Gatwick (LGW) · Stansted (STN) · Luton (LTN) ↔ Noi Bai (HAN)
- Flight time
- ~14 hours outbound
- Distance
- ~9,234 km each way
- Typical price
- $520 round-trip (seasonal median)
- Airlines on the board
- Air China
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Nov · Mar–Apr
LON → HAN, answered.
Is $481 a good price for London to Hanoi?
Only slightly. The seasonal median is around $520 round-trip and this fare is 7% under it, about $39. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from London to Hanoi?
Across 6 months of cached-fare history, Nov comes out cheapest on this route. The best months to actually be in Hanoi are Oct–Nov · Mar–Apr — when those overlap, that's your window.
How far in advance should I book LON → Hanoi?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 6 months of cached fares, Nov comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from London to Hanoi?
The current cheapest fares involve a connection, ticketed under Air China. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Hanoi?
Lock the flight first — then compare stays for Nov 13 – Nov 20 · 7 nights.
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Missed it?
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