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UA143 Denver→Narita (DEN→NRT) / Narita→Roman Tmetuchl (NRT→ROR)

Latest operation On 2026-10-4 it departed 2 min late and arrived 5 min early

90.9% On-time departure 78.8% On-time arrival

Cancellation: 0% / Diversion: 0% / Avg delay when late: 34min

2026-9-9 – 2026-10-4 ・ 33 flights

Flight time & service

Flight time (scheduled)
12h 20mActual average 12h 19m

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

Related

Daily operations

DateLegSTDATDSTAATAAircraftTailBlockvs schedule−60 ｜ +60
2026-10-4DEN-NRT11:2511:27+214:45+114:40+1−5B789 N1998612:13
2026-10-3NRT-ROR16:5516:47−821:4021:37−3B738 N732834:50
2026-10-3DEN-NRT11:2511:24−114:45+114:19+1−26B789 N2996111:55
2026-10-2DEN-NRT11:2511:22−314:45+115:01+1+16B789 N2695212:39
2026-10-1DEN-NRT11:2511:58+3314:45+115:49+1+64B789 N2696012:51
2026-9-30NRT-ROR16:5516:53−221:4022:06+26B38M N173295:13
2026-9-30DEN-NRT11:2511:26+114:45+114:51+1+6B789 N2996812:25
2026-9-29DEN-NRT11:2511:24−114:45+114:38+1−7B789 N2497912:14
2026-9-28DEN-NRT11:2511:21−414:45+114:46+1+1B789 N2498012:25
2026-9-27DEN-NRT11:2511:23−214:45+115:08+1+23B789 N2497312:45
2026-9-26NRT-ROR16:5516:35−2021:4021:20−20B38M N173024:45
2026-9-26DEN-NRT11:2511:21−414:45+114:21+1−24B789 N2796512:00
2026-9-25DEN-NRT11:2511:29+414:45+114:00+1−45B789 N2996111:31
2026-9-24DEN-NRT11:2512:15+5014:45+115:19+1+34B789 N3696212:04
2026-9-23NRT-ROR16:5516:44−1121:4021:38−2B38M N173264:54
2026-9-23DEN-NRT11:2511:19−614:45+114:37+1−8B789 N2997512:18
2026-9-22DEN-NRT11:2511:24−114:45+114:43+1−2B789 N2498012:19
2026-9-21DEN-NRT11:2511:24−114:45+115:36+1+51B789 N2497213:12
2026-9-19NRT-ROR16:5517:13+1821:4021:47+7B38M N273044:34
2026-9-19DEN-NRT11:2511:20−514:45+114:14+1−31B789 N2697011:54
2026-9-18DEN-NRT11:2511:17−814:45+114:41+1−4B789 N2799712:24
2026-9-17DEN-NRT11:2511:19−614:45+114:41+1−4B789 N2997512:22
2026-9-16NRT-ROR16:5516:48−721:4021:35−5B38M N173034:47
2026-9-16DEN-NRT11:2511:17−814:45+114:20+1−25B789 N2498812:03
2026-9-15DEN-NRT11:2511:21−414:45+114:41+1−4B789 N2399412:20
2026-9-14DEN-NRT11:2511:20−514:45+114:48+1+3B789 N3895512:28
2026-9-13DEN-NRT11:2511:22−314:45+114:38+1−7B789 N2498012:16
2026-9-12NRT-ROR16:5516:42−1321:4021:06−34B738 N332624:24
2026-9-12DEN-NRT11:2511:35+1014:45+114:57+1+12B789 N1995112:22
2026-9-11DEN-NRT11:2511:29+414:45+115:08+1+23B789 N1998612:39
2026-9-10DEN-NRT11:2511:28+314:45+114:40+1−5B789 N3895512:12
2026-9-9NRT-ROR16:5516:47−821:4021:44+4B38M N173294:57
2026-9-9DEN-NRT11:2511:31+614:45+114:26+1−19B789 N2997511:55

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
75%n=12
Arr
58.3%n=12
Tue
Dep
91.7%n=12
Arr
91.7%n=12
Wed
Dep
87.5%n=24
Arr
87%n=23
Thu
Dep
75%n=12
Arr
66.7%n=12
Fri
Dep
91.7%n=12
Arr
66.7%n=12
Sat
Dep
91.7%n=24
Arr
100%n=24
Sun
Dep
60%n=10
Arr
60%n=10

Monthly trend

On-time departureAvg delay
when late		n
2026-10—Collecting data+33minn=4
2026-09
86.8%+82minn=38
2026-08
85%+66minn=40
2026-07
79.2%+86minn=24

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

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Updated: / Last 28 days

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