MCI to SLC flight delays & on-time performance
Nonstop flights from Kansas City International Airport to Salt Lake City International Airport · 920 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MCI or SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Kansas City (MCI) to Salt Lake City (SLC) arrived on time 87% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 4% arrived an hour or more late.
- Delta Air Lines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (95% on time); around 5pm did worst (69%).
- Tuesday was the most reliable day to fly (90% on time) and Monday the least (80%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from MCI to SLC?
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 | 87% | 1.0% | 8 min | 3.9% | 1,009 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%294 flights
- 7am95%55 flights
- 8am88%16 flights
- 2pm86%362 flights
- 5pm69%40 flights
- 6pm85%149 flights
- 7pm87%62 flights
- 8pm83%31 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday80%2.7% cancelled
- Tuesday90%0.7% cancelled
- Wednesday90%0.0% cancelled
- Thursday88%0.7% cancelled
- Friday89%0.0% cancelled
- Saturday87%3.2% cancelled
- Sunday86%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)34%
- Air traffic control & airport congestion17%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)90%
- Extreme weather10%
- Air traffic control & airport congestion0%
- Security0%
MCI to SLC: common questions
- How often are MCI to SLC flights on time?
- 87% 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 Kansas City to Salt Lake City cancelled?
- 1.0% of scheduled flights were cancelled (10 of 1,009).
- 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 60 min behind schedule on average, and 3.9% of flights were an hour or more late.
- How long is taxi time at MCI?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SLC to MCI — 86% on time
More flights from Kansas City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MCI → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.