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Route Reliability

Seattle → RDM

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

84
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
0 min
Average arrival delay
1.7%
Cancelled
2,765
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 Lines90%1,059 flights
  2. 2.Alaska Airlines80%1,706 flights

What the data says

Morning-you made the right choice.

SEA–RDM flights departing between 6–9 AM arrived on time 93% of the time, versus 80% between 3–6 PM.

Skip Thursday if you can.

SEA–RDM flights arrived on time 87% of the time on Tuesdays. On Thursdays: 78%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 90% of the time on this route; Alaska Airlines managed 80%.

Ticking up lately.

SEA–RDM flights arrived on time 87% of the time over the last three months in the data, compared with 84% in the three months before that.

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%(402 flights)
  • Tue87%(389 flights)
  • Wed87%(388 flights)
  • Thu78%(388 flights)
  • Fri81%(390 flights)
  • Sat85%(358 flights)
  • Sun81%(397 flights)
On-time by departure window
  • 6–9 AM93%(118 flights)
  • 9 AM–12 PM84%(761 flights)
  • 12–3 PM83%(54 flights)
  • 3–6 PM80%(788 flights)
  • 6–9 PM84%(275 flights)
  • 9 PM–12 AM84%(716 flights)
On-time trend by month
88%
May

Jun 75% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%249
July 202574%243
August 202576%272
September 202588%266
October 202590%240
November 202586%210
December 202581%227
January 202685%191
February 202687%172
March 202685%209
April 202689%202
May 202688%231

Keep nerding

Based on 2,765 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.