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Route Reliability

IDA → Seattle

IDA–SEA · 566 miles · IDA Airport to Seattle–Tacoma International Airport

91
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
1 min
Average arrival delay
0.4%
Cancelled
720
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 85% of the time across 720 flights. No comparison to make.

What the data says

The late departure is the smart one here.

IDA–SEA flights departing between 6–9 PM arrived on time 92% of the time, versus 77% between 3–6 PM.

Friday is doing you no favors.

IDA–SEA flights arrived on time 90% of the time on Mondays. On Fridays: 79%.

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
  • Mon90%(104 flights)
  • Tue89%(102 flights)
  • Wed84%(101 flights)
  • Thu84%(101 flights)
  • Fri79%(102 flights)
  • Sat80%(103 flights)
  • Sun85%(104 flights)
On-time by departure window
  • 6–9 AM91%(319 flights)
  • 9 AM–12 PM86%(36 flights)
  • 12–3 PM81%(31 flights)
  • 3–6 PM77%(295 flights)
  • 6–9 PM92%(36 flights)
On-time trend by month
90%
May

Jun 78% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%60
July 202590%61
August 202579%62
September 202592%60
October 202586%62
November 202586%58
December 202575%55
January 202687%62
February 202686%55
March 202682%60
April 202683%60
May 202690%62

Keep nerding

Based on 720 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.