| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 04 | ATL | SJO | 10:05 | 11:31 |
En-Route
|
Track > |
| Jun 03 | ATL | SJO | 10:17 | 12:03 |
Landed
|
Track > |
| Jun 02 | ATL | SJO | 10:08 | 11:50 |
Landed
|
Track > |
| Jun 01 | ATL | SJO | 10:12 | 11:40 |
Landed
|
Track > |
| May 31 | ATL | SJO | 10:02 | 11:28 |
Landed
|
Track > |
| May 30 | ATL | SJO | 10:07 | 11:34 |
Landed
|
Track > |
| May 29 | ATL | SJO | 10:31 | 12:00 |
Landed
|
Track > |
| May 28 | ATL | SJO | 11:51 | 13:29 |
Delayed
|
Track > |
| May 27 | ATL | SJO | 09:59 | 11:31 |
Landed
|
Track > |
| May 26 | ATL | SJO | 10:04 | 11:38 |
Landed
|
Track > |
KLM Flight KL6401 connects Atlanta, United States to San Jose, Costa Rica, taking off from Atlanta Hartsfield-Jackson International Airport ATL and landing at San Jose Juan Santamaria International Airport SJO.
How long is the KL6401 flight from Atlanta to San Jose?
The average flight time from Atlanta to San Jose is 3 hours and 32 minutes. The flight distance is 2629 km / 1634 miles and the average flight speed is 742 km/h / 461 mph.
How many KL6401 flights are operated per week?
7 flights per week. The flight KL6401 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of KLM Flight KL6401 Atlanta to San Jose?
The Airportia On-Time Performance Rating for KLM Flight KL6401 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KL6401 arriving at?
Flight KL6401 arrives at San Jose Juan Santamaria International Airport (SJO) Terminal M.
When was the latest KL6401 flight?
The latest flight took off on Thursday, June 4th, 2026 with the flight status being En-Route on 11:31.
How else can the flight KL6401 be referenced as?
This KLM flight can also be referenced as KLM6401, KL 6401, KLM 6401.
How often is flight KL6401 delayed?
On average, 30% of all KL6401 flights are delayed. The average delay is 38 minutes.
Can I get compensation for my delayed or cancelled KL6401 flight or baggage issues?
If your KL6401 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our KL6401 Flight Tracker above for more details.
Other flights departing from Atlanta ATL: DL1937, DL2978, DL3190, AA5037
Other flights arriving at San Jose SJO: DL1937, AM690, B639, RZ1083
All flights connecting Atlanta ATL to San Jose SJO.