Cheap flights from London to Hanoi
Cheapest current fares: $415 in September 2026, 9,238 km direct flight in ~10h 52m.
Cheapest month-by-month fares
Lowest available fare per calendar month from London (LHR) to Hanoi (HAN). Refreshed daily.
London (LHR) → Hanoi (HAN)
- September 2026 $415
- August 2026 $478
- October 2026 $482
- July 2026 $738
Frequently asked questions
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What is the cheapest month to fly from London to Hanoi?
Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from London (LHR) to Hanoi (HAN), with fares starting from $415.
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What is the lowest current fare from LHR to HAN?
The lowest currently-listed fare from London (LHR) to Hanoi (HAN) is $415 on 2026-09-09.
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How long is the flight from London to Hanoi?
Direct flights from LHR to HAN cover approximately 9,238 km (5,740 miles), with an estimated flight time of 10h 52m. Operating airlines: VN.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.