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Route Reliability

RDM → Seattle

RDM–SEA · 228 miles · RDM Airport to Seattle–Tacoma International Airport

85
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
2 min
Average arrival delay
2.0%
Cancelled
2,763
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%1,059 flights
  2. 2.Alaska Airlines82%1,704 flights

What the data says

Morning-you made the right choice.

RDM–SEA flights departing between 3–6 AM arrived on time 89% of the time, versus 77% between 12–3 PM.

Wednesday has been the better bet.

A small edge: 88% on time on Wednesdays against 82% on Thursdays.

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
  • Mon83%(397 flights)
  • Tue87%(390 flights)
  • Wed88%(388 flights)
  • Thu82%(389 flights)
  • Fri84%(383 flights)
  • Sat87%(358 flights)
  • Sun83%(401 flights)
On-time by departure window
  • 3–6 AM89%(232 flights)
  • 6–9 AM89%(683 flights)
  • 9 AM–12 PM85%(572 flights)
  • 12–3 PM77%(350 flights)
  • 3–6 PM82%(498 flights)
  • 6–9 PM85%(371 flights)
On-time trend by month
83%
May

Jun 80% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%248
July 202585%243
August 202582%270
September 202587%264
October 202587%240
November 202589%211
December 202583%223
January 202686%194
February 202686%173
March 202687%209
April 202682%201
May 202683%230

Keep nerding

Based on 2,763 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.