KLM KL9421 Flight Status
According to Trip.com real-time data, the KL9421 flight operated by KLM on Nov 12, 2026 is scheduled to fly from Sao Luis (SLZ) to Sao Paulo (GRU). The flight is expected to depart at 2:20 AM and land at 5:33 AM .
Tue, Nov 10
Thu, Nov 12
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Arrived
The flight has arrived 15m early
Sao Luis(SLZ)
2:22 AM
Scheduled: 2:20 AM, Nov 10
São Luís–Marechal Cunha Machado International Airport T1 3h 35m
Check-in Counter
--
Boarding Gate
2
Arrival Gate
--
Baggage
202
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Scheduled
Your flight will depart on time.
Sao Luis(SLZ)
2:20 AM
Scheduled: 2:20 AM, Nov 12
São Luís–Marechal Cunha Machado International Airport T1 3h 35m
Check-in Counter
--
Boarding Gate
2
Arrival Gate
--
Baggage
--
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Need a flight from Sao Luis to Sao Paulo?
KLM
Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Sao Luis to Sao Paulo or track other flights with our flight status tracker.
Flight.News
INMET has issued a weather alert for Sao Paulo starting November 12, 2026, at 00:00. The area may experience rainfall between 20 and 30 mm/h (up to 50 mm/day), intense winds of 40–60 km/h, and hail. There is a low risk of power outages, crop damage, falling tree branches, and flooding.
KL9421 Aircraft Details
According to Trip.com real-time data, the KL9421 flight flying from Sao Luis to Sao Paulo on 11/12/2026 is operated by the aircraft model Boeing 737-800. This aircraft has been in service for 17y, 2m. The aircraft is equipped with Up to 203 seats.
Boeing 737-800
Punctuality (Departure)
100
%
Punctuality (Arrival)
100
%
Early on average
14 minutes
Age
17y, 2m
Seats
Up to 203
Flight Distance
--
Economy
Business
In-Flight Services
Snacks
Inflight entertainment is available
Wi-Fi (additional charge)
No power outlets are available
Seat Information
71 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
None
Entertainment available, please bring your own device
Wi-Fi is unavailable
No power outlets are available
Seat Information
81 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for KL9421
Trip.com historical records show that the last KL9421 flight departed on Tue, Nov 10 from SLZ at approximately 2:22 AM. This flight is expected to arrrive in GRU at 5:40 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Wed, Nov 4 | Sao Luis (SLZ) | Sao Paulo (GRU) | 738 | 2:34 AM | 5:46 AM | Arrived |
| Thu, Nov 5 | Sao Luis (SLZ) | Sao Paulo (GRU) | B38M | 2:20 AM | 5:47 AM | Arrived |
| Sat, Nov 7 | Sao Luis (SLZ) | Sao Paulo (GRU) | 738 | 2:16 AM | 5:30 AM | Arrived |
| Sun, Nov 8 | Sao Luis (SLZ) | Sao Paulo (GRU) | 738 | 2:16 AM | 5:32 AM | Arrived |
| Mon, Nov 9 | Sao Luis (SLZ) | Sao Paulo (GRU) | 738 | 2:23 AM | 5:37 AM | Arrived |
| Tue, Nov 10 | Sao Luis (SLZ) | Sao Paulo (GRU) | B38M | 2:22 AM | 5:40 AM | Arrived |
| Thu, Nov 12 | Sao Luis (SLZ) | Sao Paulo (GRU) | 738 | 2:20 AM | 5:33 AM | Scheduled |
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KL9421 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of KL9421 is 100% (Late on average 7 minutes), and the on-time arrival rate is 100% (Early on average 14 minutes).
On-Time Departures
Punctuality
100
%
Late on average
7 minutes
Early
0
%
On time
100
%
30 mins late
0
%
60 mins late
0
%
90 mins late
0
%
Canceled
0
%
On-Time Arrivals
Punctuality
100
%
Early on average
14 minutes
Early
93
%
On time
7
%
30 mins late
0
%
60 mins late
0
%
90 mins late
0
%
Canceled
0
%
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Frequently Asked Questions
What is the current status of flight kl9421?
Flight kl9421 has not departed yet and is currently on schedule. Scheduled departure 2:20 AM, arrival 5:55 AM (updated Nov 12, 2026).Is flight kl9421 on time today?
Flight kl9421 has not departed yet and is currently on schedule. Scheduled departure is 2:20 AM, with arrival at 5:55 AM. Recheck gate and timing before you head to the airport.Has flight kl9421 departed yet? What is the departure time?
Flight kl9421 is scheduled to depart at 2:20 AM. The latest actual or estimated departure time is 2:20 AM, and the current status is Scheduled (updated Nov 12, 2026).When is flight kl9421 scheduled to arrive?
Flight kl9421 is scheduled to arrive at 5:55 AM. The latest estimated or actual arrival time is 5:33 AM. Status is Scheduled as of Nov 12, 2026.What is the gate information for flight kl9421?
For flight kl9421, the departure terminal is T1 and the boarding gate is 2. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight kl9421 fly?
Flight kl9421 is operated by KLM from Sao Luis (SLZ) to Sao Paulo (GRU). Typical flight time is about 3 hours35 minutes; operating days may include Thursday.How can I check real-time status for flight kl9421?
Track flight kl9421 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight kl9421 is delayed or canceled, what should I do?
If kl9421 is delayed or canceled, first confirm the latest status here (Scheduled, updated Nov 12, 2026). Contact KLM or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight kl9421 departed from Sao Luis?
Flight kl9421 has not departed from Sao Luis (SLZ) yet and is currently on schedule for 2:20 AM.What is the seat configuration for flight kl9421?
Flight kl9421 usually flies a Boeing 737-800 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Sao Paulo Weather & Current Time
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17°C - 25°C
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0 hour time difference
Time on arrival: Sao Luis 05:33
|
Sao Paulo 05:33
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