PlainFlights

Route · JNU → SEA · 2020–2025 BTS data

Juneau to Seattle

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), JNU to SEA (Juneau to Seattle) ranks #1386 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

84%
On-time
+5 pts
vs US avg
66 min
Delay when late
8,737
Flights
#1386 of 4927
Corpus placement

Cancelled

1.6%

Best Month

Feb 2024 94%

Worst Month

Jan 2024 71%

Distance

909 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 89 25 7 0 AS
Nov 2025 88 11 1 0 AS
Oct 2025 125 24 3 0 AS,DL
Sep 2025 180 38 4 0 DL,AS
Aug 2025 205 48 2 0 AS,DL
Jul 2025 217 44 3 1 AS,DL
Jun 2025 190 40 2 1 AS,DL
May 2025 126 29 3 1 AS
Apr 2025 90 13 1 1 AS
Mar 2025 93 8 0 0 AS
Feb 2025 84 12 0 0 AS
Jan 2025 92 12 3 0 AS
Dec 2024 92 19 3 0 AS
Nov 2024 92 9 1 0 AS,DL
Oct 2024 124 18 3 0 AS,DL
Sep 2024 168 22 3 1 AS,DL
Aug 2024 211 46 2 0 AS,DL
Jul 2024 217 55 1 0 AS,DL
Jun 2024 191 35 0 0 AS,DL
May 2024 140 16 2 0 AS
Apr 2024 105 12 2 0 AS
Mar 2024 93 8 0 0 AS
Feb 2024 87 5 2 0 AS
Jan 2024 92 27 3 0 AS

JNU–SEA seasonal on-time pattern

Best: March (89.0%) · weakest: December (80.7%)

80%82%84%86%88%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.7%

Strongest calendar month

March

89.0% on-time · ~94 flights/mo

Busiest calendar month

July

~191 flights/mo avg

Weakest calendar month

December

80.7% on-time · ~87 flights/mo

Cancellation Rate

1.6%

51 of 3,191 flights

Diversion Rate

0.2%

5 of 3,191 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

JNU - Juneau

Full on-time, delay-cause, and seasonal performance for Juneau, AK.

JNU on-time profile

SEA - Seattle

Full on-time, delay-cause, and seasonal performance for Seattle, WA.

SEA on-time profile

Compare the two airports

See JNU and SEA side by side on delays, cancellations, and reliability.

Compare JNU vs SEA

Origin-hub reliability standing

Mid-pack among JNU departures

From JNU, this corridor sits with 5 other 75–85% on-time routes out of 6 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 0 below 75%). Destination: Seattle · fleet on-time rank #1571 of 4927.

What the Data Says About JNU to SEA

Bureau of Transportation Statistics records show Juneau to Seattle (JNU to SEA) running a 84% on-time rate over 8,737 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 65.6 minutes. The 909-mile corridor is served by 3 carriers, and over the last 24 months 1.6% of 3,191 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while Jan 2024 came in at just 71% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, JNU–SEA peaks in March at 89.0% on-time while July carries the heaviest traffic (~191 flights per month) ; the softest month is December at 80.7%, a 8.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does JNU to SEA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, JNU to SEA ranks #1386 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from JNU to SEA? ▼
Flights from Juneau to Seattle have a 84% on-time rate based on 8,737 flights. The average delay is 65.6 minutes. The best recent month was Feb 2024 with 94% on-time.
What is the cancellation rate for JNU to SEA? ▼
Over the last 24 months, 1.6% of flights on this route were cancelled (51 of 3,191 flights) and 0.2% were diverted.
How far is the flight from JNU to SEA? ▼
The flight distance from Juneau (JNU) to Seattle (SEA) is approximately 909 miles. This route is served by 3 carriers.
When is the best time to fly from JNU to SEA? ▼
The best recent month for on-time performance was Feb 2024 (94% on-time). The worst was Jan 2024 (71% on-time). Consider booking during months with historically better performance.

Airports on this route

JNU Airport

Juneau
SEA Airport

Seattle
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using JNU–SEA data

JNU–SEA runs 5 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare JNU and SEA airport profiles: delay causes and top routes differ even on the same corridor. JNU airport
  • If your dates flex, March (89.0% on-time) beats December (80.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 84% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.