CLE to SEA flight delays & on-time performance
Nonstop flights from Cleveland Hopkins International Airport to Seattle–Tacoma International Airport · 2,021 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CLE or SEA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Cleveland (CLE) to Seattle (SEA) arrived on time 63% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.8% were cancelled, and 9% arrived an hour or more late.
- Alaska Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (70% on time); around 8pm did worst (46%).
- Friday was the most reliable day to fly (68% on time) and Sunday the least (56%).
- The largest source of delay minutes was air traffic control & airport congestion (34%).
Which airline is most on time from CLE to SEA?
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 |
|---|---|---|---|---|---|
| Alaska Airlines | 63% | 1.8% | 20 min | 9.2% | 456 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am70%181 flights
- 5pm61%51 flights
- 6pm63%93 flights
- 7pm63%63 flights
- 8pm46%67 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday60%2.8% cancelled
- Tuesday68%1.6% cancelled
- Wednesday57%1.6% cancelled
- Thursday67%3.0% cancelled
- Friday68%0.0% cancelled
- Saturday65%0.0% cancelled
- Sunday56%2.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion34%
- Late-arriving aircraft32%
- Airline (crew, maintenance, cleaning, fueling)27%
- Extreme weather6%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)63%
- Extreme weather38%
- Air traffic control & airport congestion0%
- Security0%
CLE to SEA: common questions
- How often are CLE to SEA flights on time?
- 63% 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 Cleveland to Seattle cancelled?
- 1.8% of scheduled flights were cancelled (8 of 456).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 49 min behind schedule on average, and 9.2% of flights were an hour or more late.
- How long is taxi time at CLE?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SEA to CLE — 77% on time
More flights from Cleveland
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CLE → SEA, nonstop flights by US airlines that report to the DOT. How we calculate this.