LHR to SGN flight delays
London (LHR) Ho Chi Minh City (SGN)
69 flights · January 2025 – August 2026 · UK Civil Aviation Authority
79.71%
Arrived on time
Within 15 minutes of schedule
0%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The two directions do not behave alike. SGN to LHR arrives on time 17.4 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
The London to Ho Chi Minh City route sits close to the middle of the record — neither notably punctual nor notably late.
Every airline on LHR to SGN
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Vietnam Airlines | 69 | 79.71% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SGN to LHR Ho Chi Minh City back to London 62.32% on time —Other routes from London
Common questions
Are flights from London to Ho Chi Minh City usually delayed?
79.71% of flights on the LHR to SGN route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
How often are LHR to SGN flights cancelled?
0% of scheduled flights did not operate — about 1 in every thousand. That is in the normal range.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on LHR to SGN during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →