SQ421 Singapore Airlines - Flight Status

Which is the frequency of flight SQ421?
The flight SQ421 is scheduled to flight on daily basis.

Which is the distance of flight SQ421?
The distance between the two airports is 3922 kilometers.

Which is the flight time of flight SQ421?
The scheduled flight time gate to gate is: 05:30 hours.
The real flight time gate to gate on average is: 04:53 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Mumbai: 2026-11-11 23:40:47
Current Time in Singapore: 2026-11-12 02:10:47

The following airlines serves the same route between Mumbai and Singapore:

IndiGo
- Flight Number: 6E1163. (On Time performance: 80 - Average Delay: 6 minutes)
- Flight Number: 6E1339. (On Time performance: 96 - Average Delay: 2 minutes)

Air India
- Flight Number: AI2105. (On Time performance: 83 - Average Delay: 8 minutes)
- Flight Number: AI2107. (On Time performance: 88 - Average Delay: 6 minutes)

Singapore Airlines
- Flight Number: SQ423. (On Time performance: 85 - Average Delay: 11 minutes)

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from May 07, 2026 to November 06, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from November 02, 2025 to October 31, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.