UA837 Narita→Kaohsiung (NRT→KHH) / San Francisco→Narita (SFO→NRT)

Latest operation On 2026-10-5 it departed 104 min late and arrived 91 min late

Cancellation: 1.9% / Diversion: 0% / Avg delay when late: 55min

2026-9-9 – 2026-10-5 ・ 52 flights

Flight time & service

Flight time (scheduled): 4h 10mActual average 3h 57m

Flight time is the median scheduled gate-to-gate (block) time; the actual average excludes cancelled and diverted flights

Daily operations

Date	Leg	STD	ATD	STA	ATA	Aircraft	Tail	Block
2026-10-5	NRT-KHH	17:50	19:34+104	21:00	22:31+91	B38M	N17316	3:57
2026-10-4	SFO-NRT	11:55	11:50−5	15:00+1	14:55+1−5	B77W	N2140U	11:05
2026-10-4	NRT-KHH	17:50	17:40−10	21:00	20:43−17	B38M	N17326	4:03
2026-10-3	SFO-NRT	11:55	12:11+16	15:00+1	15:03+1+3	B77W	N2645U	10:52
2026-10-3	NRT-KHH	17:50	17:45−5	21:00	20:42−18	B38M	N37319	3:57
2026-10-2	SFO-NRT	11:55	11:52−3	15:00+1	14:57+1−3	B77W	N2333U	11:05
2026-10-2	NRT-KHH	17:50	17:50±0	21:00	20:55−5	B38M	N17303	4:05
2026-10-1	SFO-NRT	11:55	11:55±0	15:00+1	15:05+1+5	B77W	N2332U	11:10
2026-10-1	NRT-KHH	17:50	17:38−12	21:00	20:27−33	B38M	N37319	3:49
2026-9-30	SFO-NRT	11:55	11:57+2	15:00+1	15:06+1+6	B77W	N2341U	11:09
2026-9-30	NRT-KHH	17:50	17:49−1	21:00	20:42−18	B38M	N17322	3:53
2026-9-29	SFO-NRT	11:55	11:55±0	15:00+1	14:49+1−11	B77W	N2737U	10:54
2026-9-29	NRT-KHH	17:50	17:49−1	21:00	20:52−8	B38M	N37319	4:03
2026-9-28	SFO-NRT	11:55	12:04+9	15:00+1	15:10+1+10	B77W	N2748U	11:06
2026-9-28	NRT-KHH	17:50	17:48−2	21:00	20:51−9	B38M	N17316	4:03
2026-9-27	SFO-NRT	11:55	11:53−2	15:00+1	15:41+1+41	B77W	N2138U	11:48
2026-9-27	NRT-KHH	17:50	18:16+26	21:00	21:13+13	B38M	N17309	3:57
2026-9-26	SFO-NRT	11:55	11:54−1	15:00+1	15:47+1+47	B77W	N2136U	11:53
2026-9-26	NRT-KHH	17:50	17:55+5	21:00	21:08+8	B38M	N17306	4:13
2026-9-25	SFO-NRT	11:55	11:53−2	15:00+1	15:04+1+4	B77W	N2250U	11:11
2026-9-25	NRT-KHH	17:50	19:17+87	21:00	22:05+65	B38M	N17309	3:48
2026-9-24	SFO-NRT	11:55	15:10+195	15:00+1	18:05+1+185	B77W	N2331U	10:55
2026-9-24	NRT-KHH	17:50	17:43−7	21:00	20:31−29	B38M	N27304	3:48
2026-9-23	SFO-NRT	11:55	11:54−1	15:00+1	14:59+1−1	B77W	N2747U	11:05
2026-9-23	NRT-KHH	17:50	17:44−6	21:00	20:40−20	B38M	N17322	3:56
2026-9-22	SFO-NRT	11:55	12:18+23	15:00+1	15:55+1+55	B77W	N2333U	11:37
2026-9-22	NRT-KHH	17:50	17:47−3	21:00	20:47−13	B38M	N27304	4:00
2026-9-21	SFO-NRT	11:55	12:03+8	15:00+1	15:20+1+20	B77W	N2138U	11:17
2026-9-21	NRT-KHH	17:50	Cancelled			B38M	N17322	—
2026-9-20	NRT-KHH	17:50	17:50±0	21:00	20:34−26	B38M	N17316	3:44
2026-9-19	SFO-NRT	11:55	12:36+41	15:00+1	15:36+1+36	B77W	N2737U	11:00
2026-9-19	NRT-KHH	17:50	17:54+4	21:00	20:31−29	B38M	N37319	3:37
2026-9-18	SFO-NRT	11:55	11:46−9	15:00+1	14:55+1−5	B77W	N2250U	11:09
2026-9-18	NRT-KHH	17:50	17:45−5	21:00	20:37−23	B38M	N17316	3:52
2026-9-17	SFO-NRT	11:55	12:22+27	15:00+1	15:06+1+6	B77W	N2352U	10:44
2026-9-17	NRT-KHH	17:50	17:51+1	21:00	20:42−18	B38M	N17309	3:51
2026-9-16	SFO-NRT	11:55	12:03+8	15:00+1	14:55+1−5	B77W	N2243U	10:52
2026-9-16	NRT-KHH	17:50	17:39−11	21:00	20:35−25	B38M	N17306	3:56
2026-9-15	SFO-NRT	11:55	12:12+17	15:00+1	14:54+1−6	B77W	N2135U	10:42
2026-9-15	NRT-KHH	17:50	17:41−9	21:00	20:44−16	B38M	N17309	4:03
2026-9-14	SFO-NRT	11:55	12:02+7	15:00+1	15:23+1+23	B77W	N2250U	11:21
2026-9-14	NRT-KHH	17:50	17:50±0	21:00	20:35−25	B38M	N17316	3:45
2026-9-13	SFO-NRT	11:55	11:47−8	15:00+1	14:46+1−14	B77W	N2138U	10:59
2026-9-13	NRT-KHH	17:50	17:40−10	21:00	20:27−33	B38M	N17306	3:47
2026-9-12	SFO-NRT	11:55	11:50−5	15:00+1	14:58+1−2	B77W	N2846U	11:08
2026-9-12	NRT-KHH	17:50	17:42−8	21:00	20:30−30	B38M	N17303	3:48
2026-9-11	SFO-NRT	11:55	11:50−5	15:00+1	15:00+1±0	B77W	N2136U	11:10
2026-9-11	NRT-KHH	17:50	17:49−1	21:00	20:44−16	B38M	N17306	3:55
2026-9-10	SFO-NRT	11:55	11:52−3	15:00+1	15:28+1+28	B77W	N2749U	11:36
2026-9-10	NRT-KHH	17:50	17:40−10	21:00	20:42−18	B38M	N17302	4:02
2026-9-9	SFO-NRT	11:55	12:12+17	15:00+1	14:59+1−1	B77W	N2250U	10:47
2026-9-9	NRT-KHH	17:50	18:01+11	21:00	21:41+41	B38M	N27304	4:40

Centre line is on schedule. The left end of each line is the departure offset, the dot on the right is the arrival offset — extending right means the delay grew, pulling back left means it was made up in the air. Times are local to each airport.

By day of week All time

Mon

Dep

90%n=20

Arr

70%n=20

Tue

Dep

63.6%n=22

Arr

77.3%n=22

Wed

Dep

81.8%n=22

Arr

86.4%n=22

Thu

Dep

68.2%n=22

Arr

68.2%n=22

Fri

Dep

86.4%n=22

Arr

81.8%n=22

Sat

Dep

87.5%n=24

Arr

83.3%n=24

Sun

Dep

85.7%n=21

Arr

85.7%n=21

Monthly trend

		Avg delay when late	n
2026-10	83.3%	+16min	n=6
2026-09	82.5%	+49min	n=57
2026-08	74.2%	+57min	n=62
2026-07	89.3%	+53min	n=28

Avg delay when late counts only flights that departed more than 15 minutes behind schedule / Faded rows are indicative (n<10); below n=5 no rate is shown

NH6464

See the full aircraft rotation history

Ship charts and fleet rotation show the last 3 days to everyone. Standard members (¥280/month) get the last 27 days for aircraft of Japanese airlines. The on-time data itself is free for all.

See pricing

Updated: 2026-10-06 / Last 28 days