PlainFlights

Route · BZN → SEA · 2020–2025 BTS data

Bozeman to Seattle

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BZN to SEA (Bozeman to Seattle) ranks #2317 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81%
On-time
+2 pts
vs US avg
59 min
Delay when late
5,414
Flights
#2317 of 4927
Corpus placement

Cancelled

1.1%

Best Month

Dec 2023 90%

Worst Month

Jun 2025 60%

Distance

543 mi

Carriers

10

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 161 36 2 1 AS,OO
Nov 2025 98 11 3 0 OO,AS
Oct 2025 122 14 1 0 AS,OO
Sep 2025 137 14 0 0 OO,AS
Aug 2025 150 29 0 0 OO,AS,DL
Jul 2025 152 31 2 0 AS,OO
Jun 2025 62 25 0 0 AS,OO
May 2025 46 17 0 0 AS
Mar 2025 31 8 0 0 AS
Feb 2025 30 11 1 0 AS
Jan 2025 37 8 1 0 AS,OO
Dec 2024 36 3 0 0 AS,OO
Oct 2024 58 12 0 0 AS
Sep 2024 60 19 0 0 AS
Aug 2024 81 28 1 1 AS,OO
Jul 2024 92 33 1 0 AS
Jun 2024 87 19 0 1 AS,OO
May 2024 62 18 0 0 AS,OO
Apr 2024 30 7 0 0 AS
Mar 2024 45 6 0 0 AS
Feb 2024 58 8 1 0 AS
Jan 2024 67 15 5 0 AS,OO
Dec 2023 61 6 1 1 OO,AS
Nov 2023 44 2 0 0 AS

BZN–SEA seasonal on-time pattern

Best: October (86.7%) · weakest: February (72.8%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 73.4%

Strongest calendar month

October

86.7% on-time · ~83 flights/mo

Busiest calendar month

July

~115 flights/mo avg

Weakest calendar month

February

72.8% on-time · ~85 flights/mo

Cancellation Rate

1.1%

19 of 1,807 flights

Diversion Rate

0.2%

4 of 1,807 flights

Explore origin & destination

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

BZN - Bozeman

Full on-time, delay-cause, and seasonal performance for Bozeman, MT.

BZN 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 BZN and SEA side by side on delays, cancellations, and reliability.

Compare BZN vs SEA

Origin-hub reliability standing

Mid-pack among BZN departures

From BZN, this corridor sits with 6 other 75–85% on-time routes out of 11 tracked departures, not the hub's reliability leaders (3 at ≥85%) and not the softest ( 2 below 75%). Destination: Seattle · fleet on-time rank #2733 of 4927.

What the Data Says About BZN to SEA

5,414 tracked flights put the BZN to SEA pairing (Bozeman to Seattle) at a 81% on-time rate, squarely in line with the wider network. Delays that do occur run 59.3 minutes on average. Across the 543-mile route and its 10 carriers, the trailing 24 months show 1.1% cancelled and 0.2% diverted (1,807 flights sampled).

The monthly split is wide on this route: Dec 2023 posted the strongest performance at 90% on-time, while Jun 2025 came in at just 60% - a 31-point swing worth factoring into travel timing.

On the multi-year calendar, BZN–SEA peaks in October at 86.7% on-time while July carries the heaviest traffic (~115 flights per month) ; the softest month is February at 72.8%, a 13.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BZN to SEA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, BZN to SEA ranks #2317 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 BZN to SEA? ▼
Flights from Bozeman to Seattle have a 81% on-time rate based on 5,414 flights. The average delay is 59.3 minutes. The best recent month was Dec 2023 with 90% on-time.
What is the cancellation rate for BZN to SEA? ▼
Over the last 24 months, 1.1% of flights on this route were cancelled (19 of 1,807 flights) and 0.2% were diverted.
How far is the flight from BZN to SEA? ▼
The flight distance from Bozeman (BZN) to Seattle (SEA) is approximately 543 miles. This route is served by 10 carriers.
When is the best time to fly from BZN to SEA? ▼
The best recent month for on-time performance was Dec 2023 (90% on-time). The worst was Jun 2025 (60% on-time). Consider booking during months with historically better performance.

Airports on this route

BZN Airport

Bozeman
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 BZN–SEA data

BZN–SEA is mid-pack at 81% on-time; month and carrier mix move more than the corridor headline.

  • Compare BZN and SEA airport profiles: delay causes and top routes differ even on the same corridor. BZN airport
  • If your dates flex, October (86.7% on-time) beats February (72.8%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81% 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.