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Route Reliability

Seattle → Bozeman

SEA–BZN · 543 miles · Seattle–Tacoma International Airport to Bozeman Yellowstone International Airport

89
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
1 min
Average arrival delay
0.7%
Cancelled
2,083
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Delta Air Lines89%778 flights
  2. 2.Alaska Airlines82%1,305 flights

What the data says

Morning flights do better here.

SEA–BZN flights departing between 6–9 AM arrived on time 92% of the time, versus 75% between 3–6 PM.

Thursday is the weak spot.

SEA–BZN flights arrived on time 88% of the time on Tuesdays. On Thursdays: 80%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 89% of the time on this route; Alaska Airlines managed 82%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon85%(311 flights)
  • Tue88%(276 flights)
  • Wed86%(280 flights)
  • Thu80%(305 flights)
  • Fri84%(298 flights)
  • Sat86%(288 flights)
  • Sun83%(307 flights)
On-time by departure window
  • 6–9 AM92%(442 flights)
  • 9 AM–12 PM79%(488 flights)
  • 12–3 PM88%(168 flights)
  • 3–6 PM75%(291 flights)
  • 6–9 PM89%(454 flights)
  • 9 PM–12 AM82%(222 flights)
On-time trend by month
83%
May

Jun 66% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%123
July 202578%212
August 202583%207
September 202590%192
October 202587%158
November 202593%153
December 202583%175
January 202681%177
February 202688%159
March 202689%169
April 202689%162
May 202683%178

Keep nerding

Based on 2,083 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.