Route
CVG → SEA
Cincinnati Northern Kentucky International Airport Seattle–Tacoma International Airport
1,965 miles
Return route SEA → CVG →
How punctual is this route?
- On-time arrivals
- 77.0%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 793
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 37%
- Late-arriving aircraft 20%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 95.0% | 60 |
| October 2025 | 85.0% | 61 |
| November 2025 | 84.2% | 57 |
| December 2025 | 39.0% | 60 |
| January 2026 | 74.6% | 61 |
| February 2026 | 58.9% | 56 |
| March 2026 | 55.9% | 62 |
| April 2026 | 83.3% | 60 |
| May 2026 | 90.2% | 62 |
| June 2026 | 79.0% | 81 |
| July 2026 | 88.0% | 92 |
| August 2026 | 80.8% | 81 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Alaska Airlines | 431 | 71.2% | 1.9% | 61 min |
| Delta Air Lines | 362 | 83.8% | 0.8% | 58 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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