ON TIMEBOARD

JNU → ANC on time

Juneau (Juneau, AK) to Ted Stevens Anchorage (Anchorage, AK). Every scheduled flight, September 2025 to August 2026.

On time
82%
arrived < 15 min late
Cancelled
2.8%
1,230 flights
Typical arrival
−11 min
median vs schedule
When late
+71 min
average delay
Flights / day
3
1 airline

82% of flights from Juneau to Anchorage arrived on time over the past 12 months. That is about the typical U.S. route. The 7 a.m. departures ran on time 84% of the time; the 8 p.m. ones 75%. 9% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for JNU → ANC: when a flight was late, it was under 45 minutes late 49% of the time. About 1 in 17 flights landed an hour or more late, and 1 in 82 three hours or more; 2.8% were cancelled outright.

Share of all 1,230 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Alaska Airlines1,23082%2.8%−11 min5.9%+71 minAlaska Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at JNU). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: 84% on time (362 flights)847a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: too few flights (28 flights)12p1 p.m. departures: 78% on time (334 flights)781p2 p.m. departures: too few flights (1 flights)2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights (20 flights)4p5 p.m. departures: too few flights (26 flights)5p6 p.m. departures: too few flights (59 flights)6p7 p.m. departures: too few flights (38 flights)7p8 p.m. departures: 75% on time (279 flights)758p9 p.m. departures: too few flights (83 flights)9p
JNU → ANC, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On JNU → ANC, each airline's last flight of the day was cancelled 4.1% of the time, against 2.2% for its earlier flights (1.9× as often). It arrived 3+ hours late 0.8% of the time (earlier flights: 1.5%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
Alaska Airlines9:10 p.m.4.1%0.8%2.2%first flight 7:36 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in ANC tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: June (90%). Worst: January (73%).

40%70%100%Jan: 73% on time (273 flights)73JanFeb: 87% on time (255 flights)87FebMar: 79% on time (279 flights)79MarApr: 89% on time (270 flights)89AprMay: 89% on time (325 flights)89MayJun: 90% on time (354 flights)90JunJul: 83% on time (370 flights)83JulAug: 82% on time (372 flights)82AugSep: 87% on time (359 flights)87SepOct: 87% on time (282 flights)87OctNov: 86% on time (264 flights)86NovDec: 75% on time (271 flights)75Dec

By day of week

DayFlightsOn timeCancelled
Monday18077%2.2%
Tuesday17683%2.3%
Wednesday17585%2.3%
Thursday17181%2.9%
Friday17781%2.8%
Saturday17585%2.9%
Sunday17679%4.0%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 64%Airline (crew, maintenance, ops) 17%Air traffic & airport (NAS) 12%Severe weather 7%

Cancellations: airline 17 · weather 17

Month by month

60%80%100%Sep 2023Jan 2024Jan 2025Jan 2026Sep 2023: 88% on time, 0.8% cancelledMay 2024: 85% on time, 2.9% cancelledJun 2024: 92% on time, 0.9% cancelledJul 2024: 82% on time, 0.8% cancelledAug 2024: 84% on time, 1.6% cancelledSep 2024: 91% on time, 1.7% cancelledMay 2025: 89% on time, 0.0% cancelledJun 2025: 88% on time, 1.7% cancelledJul 2025: 80% on time, 1.6% cancelledAug 2025: 79% on time, 3.2% cancelledSep 2025: 83% on time, 3.3% cancelledMay 2026: 92% on time, 2.7% cancelledJun 2026: 89% on time, 2.5% cancelledJul 2026: 87% on time, 0.8% cancelledAug 2026: 84% on time, 1.6% cancelled
Share of flights on time, by month (hover a point for cancellations)
JNU → ANC, monthly on-time and cancellation rate.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AS 737:31 a.m.36284%3.0%−14 minAlaska Airlines
AS 651:02 p.m.36079%2.2%−6 minAlaska Airlines
AS 679:10 p.m.36278%4.1%−11 minAlaska Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Feb 27, 202630%0
Dec 28, 202530%0
Dec 15, 202530%0
Jan 20, 202630%1
Dec 9, 202530%0

Questions

How often are flights from JNU to ANC on time?

82% of 1,230 scheduled flights from Juneau, AK to Anchorage, AK arrived within 15 minutes of schedule between September 2025 and August 2026. 2.8% were cancelled.

What is the best time of day to fly JNU to ANC?

Flights scheduled to leave at 7 a.m. were the most reliable (84% on time). The 8 p.m. departures were the least (75%).

What month has the most delays from JNU to ANC?

January (73% on time). The best month is June (90%), over 2023–2026.

Is the last flight of the day from JNU to ANC more likely to be cancelled?

Yes. Each airline's last JNU–ANC flight of the day was cancelled 4.1% of the time over the past year, against 2.2% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.