SEA to CVG flight delays & on-time performance
Nonstop flights from Seattle–Tacoma International Airport to Cincinnati Northern Kentucky International Airport · 1,965 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SEA or CVG right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Seattle (SEA) to Cincinnati (CVG) arrived on time 85% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 4% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (89% on time); Alaska Airlines was the least (81%).
- Departures scheduled around 8am did best (92% on time); around 10am did worst (80%).
- Wednesday was the most reliable day to fly (89% on time) and Sunday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (50%).
Which airline is most on time from SEA to CVG?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 89% | 0.8% | 7 min | 3.4% | 362 |
| Alaska Airlines | 81% | 0.9% | 9 min | 3.8% | 431 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am92%52 flights
- 9am71%14 flights
- 10am80%183 flights
- 11am88%405 flights
- 12pm89%37 flights
- 1pm81%32 flights
- 10pm87%52 flights
- 11pm44%18 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday84%0.0% cancelled
- Tuesday85%0.0% cancelled
- Wednesday89%0.0% cancelled
- Thursday86%0.0% cancelled
- Friday87%2.6% cancelled
- Saturday88%0.9% cancelled
- Sunday74%2.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)50%
- Late-arriving aircraft29%
- Air traffic control & airport congestion20%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather71%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion0%
- Security0%
SEA to CVG: common questions
- How often are SEA to CVG flights on time?
- 85% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Seattle to Cincinnati cancelled?
- 0.9% of scheduled flights were cancelled (7 of 793).
- How long are typical delays?
- Across all flights the average arrival delay was 8 min (early arrivals count as zero). Flights that were late arrived 47 min behind schedule on average, and 3.6% of flights were an hour or more late.
- How long is taxi time at SEA?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CVG to SEA — 76% on time
More flights from Seattle
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SEA → CVG, nonstop flights by US airlines that report to the DOT. How we calculate this.