ExceptionalNonstop · 3.5h
LON to RAKMorocco
Marrakech
$48
usually $130
−63%
Most monthly lows $74–$164. Cheaper than every other month on record (6).
Flights · LON → HAN
London to Hanoi
Best fare, round trip
$468
−11%
below its usual $525
you keep $57
Found
- Depart
- Mon 22 Feb
- Return
- Tue 9 Mar
- Stay
- 15 nights
- Flight
- 1 stop · 15h
- Airline
Air China
Most of this route’s monthly lows fall between $470 and $579. The drop beats 25% of measured fares on the board, over 6 observed months.
Cached fare — the booking search re-prices live before you pay.
VietnamHanoiOld-quarter alleys, motorbike tides and the country’s best food — and Ha Long Bay two hours out.Best windowOct–Nov · Mar–AprAirportsNoi Bai (HAN)Every route into HanoiFare seasonality
When this route gets cheap.
Fares bottom out in February around $468 and peak in December near $908, 94% dearer, across the 6 months we track. The cheapest itinerary we are tracking makes one stop and takes about 15 hours outbound, on a 15-night trip — ticketed under Air China, which on a connecting fare need not operate every leg. At $468 for 9,234 km each way, that works out to about $25 per 1,000 km flown. That is well under the $44 per 1,000 km that long-haul fares on this board typically run. Across the 20 departure cities we track at a similar distance from Hanoi, this fare ranks 2nd — 0% above the $467 from Brussels. It is also the 3rd cheapest of the 36 routes of similar length we watch out of London. The best time to be in Hanoi: Oct–Nov · Mar–Apr.
The 7 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 12% higher than when tracking began on 8 Aug — $561 then versus $631 now, across 18 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 $460, on 5 Nov.
- Mon 19 Oct$718
- Tue 20 Oct$631
- Mon 26 Oct$980
- Sun 15 Nov$493lowest
- Mon 16 Nov$505
- Mon 21 Dec$1,077
- Sat 30 Jan$614
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 13 Oct 2026
Cheapest in Feb, around $468
11% below the $525 typical fare
$523Oct, around the usual price. Compare October fares.$470Nov, below the usual price. Compare November fares.$908Dec, above the usual price. Compare December fares.$485Jan ’27, below the usual price. Compare January fares.$468Feb, the cheapest month. Compare February fares.$579Sep, above the usual price. Compare September fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, London to Hanoi, from cached prices.
Route facts
- Airports
- Heathrow (LHR) · Gatwick (LGW) · Stansted (STN) · Luton (LTN) ↔ Noi Bai (HAN)
- Flight time
- ≈15 hours outbound
- Distance
- ≈9,234 km each way
- Typical price
- $525 round-trip (seasonal median)
- Airlines on the board
- Air China
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Nov · Mar–Apr
Good to know
LON → HAN, answered.
Is $468 a good price for London to Hanoi?
Only slightly. The seasonal median is around $525 round-trip and this fare is 11% under it. 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, Feb 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, Feb comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from London to Hanoi?
The current cheapest fares involve a connection, ticketed under Air China. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). 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 22 Feb '27 – 9 Mar '27 · 15 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next LON → HAN drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
ExceptionalNonstop · 2.5h
LON to OPOPortugal
Porto
$60
usually $160
−63%
Most monthly lows $118–$181. Cheaper than every other month on record (8).
ExceptionalNonstop · 4.5h
LON to LCACyprus
Larnaca
$76
usually $180
−58%
Most monthly lows $133–$218. Cheaper than every other month on record (4).
Rare1 stop · 12h
SYD to HANAustralia
Sydney
$484
usually $885
−45%
Most monthly lows $487–$885. Cheaper than every other month on record (3).
Great1 stop · 20.5h
NYC to HANUnited States
New York
$564
usually $895
−37%
Most monthly lows $792–$905. Cheaper than every other month on record (4).
Great1 stop · 15h
MUC to HANGermany
Munich
$580
usually $910
−36%
Most monthly lows $580–$937. Other months at or below this: 1 of 5.