AirHint found the following cheapest one-way flights from London (LCY) to Hanoi (HAN) in December 2025 (see full year).
One-Way flights
| 31 Dec | KLM | ||
| 26 Dec | KLM | ||
| 09 Dec | KLM | ||
| 03 Dec | British Airways | ||
| 04 Dec | British Airways | ||
| 24 Dec | British Airways | ||
| 01 Dec | British Airways | ||
| 08 Dec | British Airways | ||
| 02 Dec | British Airways | ||
| 06 Dec | British Airways |
Also check the deals for return flights from London to Hanoi in December.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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