PlainFlights

Route · SEA → BZN · 2020–2025 BTS data

Seattle to Bozeman

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SEA to BZN (Seattle to Bozeman) ranks #2315 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.1%
On-time
+2.1 pts
vs US avg
54 min
Delay when late
5,417
Flights
#2315 of 4927
Corpus placement

Cancelled

0.8%

Best Month

Dec 2023 92%

Worst Month

Jun 2025 44%

Distance

543 mi

Carriers

10

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 162 30 1 0 AS,OO
Nov 2025 98 10 2 1 OO,AS
Oct 2025 123 18 1 0 AS,OO
Sep 2025 137 17 0 0 OO,AS
Aug 2025 150 29 0 1 OO,AS,DL
Jul 2025 152 37 1 0 AS,OO
Jun 2025 63 35 0 0 AS,OO
May 2025 46 20 0 0 AS
Mar 2025 31 12 0 0 AS
Feb 2025 30 11 1 0 AS
Jan 2025 37 7 0 0 AS,OO
Dec 2024 36 4 0 0 AS,OO
Oct 2024 57 13 0 0 AS
Sep 2024 60 14 0 0 AS
Aug 2024 81 26 1 0 AS,OO
Jul 2024 92 24 1 0 AS
Jun 2024 87 27 0 0 AS,OO
May 2024 63 14 0 0 AS,OO
Apr 2024 30 7 0 0 AS
Mar 2024 44 12 0 0 AS
Feb 2024 58 6 1 1 AS
Jan 2024 67 19 5 0 AS,OO
Dec 2023 62 5 1 0 OO,AS
Nov 2023 44 4 0 0 AS

SEA–BZN seasonal on-time pattern

Best: November (90.3%) · weakest: June (73.2%)

70%75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 77.5%

Strongest calendar month

November

90.3% on-time · ~75 flights/mo

Busiest calendar month

July

~115 flights/mo avg

Weakest calendar month

June

73.2% on-time · ~95 flights/mo

Cancellation Rate

0.8%

15 of 1,810 flights

Diversion Rate

0.2%

3 of 1,810 flights

Explore origin & destination

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

SEA - Seattle

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

SEA on-time profile

BZN - Bozeman

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

BZN on-time profile

Compare the two airports

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

Compare SEA vs BZN

Origin-hub reliability standing

Mid-pack among SEA departures

From SEA, this corridor sits with 63 other 75–85% on-time routes out of 89 tracked departures, not the hub's reliability leaders (25 at ≥85%) and not the softest ( 1 below 75%). Destination: Bozeman · fleet on-time rank #2722 of 4927.

What the Data Says About SEA to BZN

5,417 tracked flights put the SEA to BZN pairing (Seattle to Bozeman) at a 81.1% on-time rate, squarely in line with the wider network. Delays that do occur run 53.7 minutes on average. Across the 543-mile route and its 10 carriers, the trailing 24 months show 0.8% cancelled and 0.2% diverted (1,810 flights sampled).

The monthly split is wide on this route: Dec 2023 posted the strongest performance at 92% on-time, while Jun 2025 came in at just 44% - a 48-point swing worth factoring into travel timing.

On the multi-year calendar, SEA–BZN peaks in November at 90.3% on-time while July carries the heaviest traffic (~115 flights per month) ; the softest month is June at 73.2%, a 17.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SEA to BZN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SEA to BZN ranks #2315 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 SEA to BZN? ▼
Flights from Seattle to Bozeman have a 81.1% on-time rate based on 5,417 flights. The average delay is 53.7 minutes. The best recent month was Dec 2023 with 92% on-time.
What is the cancellation rate for SEA to BZN? ▼
Over the last 24 months, 0.8% of flights on this route were cancelled (15 of 1,810 flights) and 0.2% were diverted.
How far is the flight from SEA to BZN? ▼
The flight distance from Seattle (SEA) to Bozeman (BZN) is approximately 543 miles. This route is served by 10 carriers.
When is the best time to fly from SEA to BZN? ▼
The best recent month for on-time performance was Dec 2023 (92% on-time). The worst was Jun 2025 (44% on-time). Consider booking during months with historically better performance.

Airports on this route

SEA Airport

Seattle
BZN Airport

Bozeman
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 SEA–BZN data

SEA–BZN is mid-pack at 81.1% on-time; month and carrier mix move more than the corridor headline.

  • Compare SEA and BZN airport profiles: delay causes and top routes differ even on the same corridor. SEA airport
  • If your dates flex, November (90.3% on-time) beats June (73.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.1% 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.