SLC to KOA flight delays & on-time performance
Nonstop flights from Salt Lake City International Airport to Ellison Onizuka Kona International Airport at Keāhole · 2,966 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SLC or KOA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Salt Lake City (SLC) to Kona (KOA) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.1% were cancelled, and 9% arrived an hour or more late.
- Delta Air Lines is the only airline reporting nonstop flights on this route.
- Monday was the most reliable day to fly (94% on time) and Sunday the least (44%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (76%).
Which airline is most on time from SLC to KOA?
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 | 71% | 2.1% | 24 min | 8.5% | 96 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Monday94%0.0% cancelled
- Tuesday71%0.0% cancelled
- Wednesday71%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday88%0.0% cancelled
- Saturday50%5.9% cancelled
- Sunday44%5.9% 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)76%
- Air traffic control & airport congestion14%
- Late-arriving aircraft6%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SLC to KOA: common questions
- How often are SLC to KOA flights on time?
- 71% 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 Salt Lake City to Kona cancelled?
- 2.1% of scheduled flights were cancelled (2 of 96).
- How long are typical delays?
- Across all flights the average arrival delay was 24 min (early arrivals count as zero). Flights that were late arrived 82 min behind schedule on average, and 8.5% of flights were an hour or more late.
- How long is taxi time at SLC?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: KOA to SLC — 71% on time
More flights from Salt Lake City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SLC → KOA, nonstop flights by US airlines that report to the DOT. How we calculate this.