Cincinnati / Covington (CVG) to Seattle (SEA) flights
Alaska Airlines, Delta Air Lines fly nonstop from Cincinnati Northern Kentucky International Airport to Seattle-Tacoma International Airport, with about 21 flights a week in July 2026. The 1,965-mile flight takes about 4h 59m gate to gate.
- Distance
- 1,965 mi · 3,162 km
- Flight time
- 4h 59m
- Airlines
- 2
- Seats filled
- 80%
Airlines flying CVG to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 14 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 59,738 | 5h 0m |
| Delta Air Lines | 7 | Boeing 737-900ER, Boeing 737-800 | 49,848 | 4h 57m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
CVG to SEA flight schedule
4 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:35am and the last at 6:42pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| DL 966Delta Air Lines | 6:35am | 8:29am | 31 | 85% |
| AS 302Alaska Airlines | 7:00am | 9:00am | 18 | 81% |
| AS 508Alaska Airlines | 5:07pm | 7:07pm | 18 | 71% |
| AS 451Alaska Airlines | 6:42pm | 8:35pm | 12 | 75% |
Is CVG to SEA on time?
From September 2025 to August 2026, 77% of 793 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 7am were the most punctual (88%), those around 8am the least (59%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 431 | 71% | 18 min | 1.9% |
| Delta Air Lines | 362 | 84% | 9 min | 0.8% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 327 | 82% | |
| 7am to 8am | 106 | 88% | |
| 8am to 9am | 69 | 59% | |
| 5pm to 6pm | 69 | 79% | |
| 6pm to 7pm | 159 | 70% | |
| 7pm to 8pm | 63 | 68% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 81 | 12,171 | |
| September 2025 | 60 | 9,134 | |
| October 2025 | 60 | 8,053 | |
| November 2025 | 57 | 7,392 | |
| December 2025 | 59 | 8,351 | |
| January 2026 | 59 | 6,417 | |
| February 2026 | 56 | 6,229 | |
| March 2026 | 59 | 7,594 | |
| April 2026 | 60 | 7,771 | |
| May 2026 | 61 | 9,350 | |
| June 2026 | 81 | 12,637 | |
| July 2026 | 92 | 14,487 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.