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Route Reliability

Seattle → Cincinnati

SEA–CVG · 1,965 miles · Seattle–Tacoma International Airport to Cincinnati/Northern Kentucky International Airport

83
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
0 min
Average arrival delay
0.9%
Cancelled
791
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 Lines88%362 flights
  2. 2.Alaska Airlines76%429 flights

What the data says

The 12–3 PM departure wins.

SEA–CVG flights departing between 12–3 PM arrived on time 85% of the time, versus 55% between 9 PM–12 AM.

Sunday scaries are real for this one.

SEA–CVG flights arrived on time 85% of the time on Fridays. On Sundays: 71%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 88% of the time on this route; Alaska Airlines managed 76%.

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
  • Mon82%(112 flights)
  • Tue80%(112 flights)
  • Wed83%(114 flights)
  • Thu84%(112 flights)
  • Fri85%(108 flights)
  • Sat84%(108 flights)
  • Sun71%(112 flights)
On-time by departure window
  • 9 AM–12 PM84%(645 flights)
  • 12–3 PM85%(66 flights)
  • 9 PM–12 AM55%(67 flights)
On-time trend by month
87%
May

Jun 80% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%79
July 202564%90
August 202572%78
September 202592%60
October 202593%60
November 202586%57
December 202583%59
January 202678%59
February 202689%56
March 202685%59
April 202681%59
May 202687%62

Keep nerding

Based on 791 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.