Ontario (ONT) to Salt Lake City (SLC)
Flight time
≈ 1h 55m
Bearing
32° NE
Ontario (ONT) to Salt Lake City (SLC) is 558 miles (898 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ONT–SLC
Filed traffic dataIn June 2026, Delta Air Lines operated the most departures, one of 2 carriers flying nonstop ONT–SLC; the Airbus A220-100 was the most common aircraft at 58% of departures; flights ran 87% full.
Departures
226
June 2026
Seats
23,209
both directions
Passengers
20,150
both directions
Load factor
86.8%
RPM ÷ ASM
Who flies ONT–SLC?
Delta Air Lines operated the most nonstop ONT–SLC departures in June 2026 (166), one of 2 carriers on the route.
- DL
166 departures · 18,949 seats
Share of departures73.5%85.6%
Load
- OO
60 departures · 4,260 seats
Share of departures26.5%92.4%
Load
What plane flies ONT–SLC?
In June 2026, the Airbus A220-100 flew 58% of ONT–SLC departures — more than any other aircraft type.
- Airbus A220-100
131 departures · 87.8% load
58.0% - Embraer E175
60 departures · 92.4% load
26.6% - Airbus A319
33 departures · 80.2% load
14.6% - Airbus A320
2 departures · 60.2% load
0.9%
How has ONT–SLC traffic changed?
Nonstop ONT–SLC departures fell from 232 in July 2025 to 226 in June 2026.
Monthly nonstop ONT–SLC traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
232 departures · 21,539 passengers
77.9%
Load
August 2025
234 departures · 19,937 passengers
69.5%
Load
September 2025
220 departures · 18,721 passengers
70.1%
Load
October 2025
230 departures · 19,766 passengers
73.5%
Load
November 2025
171 departures · 16,694 passengers
72.4%
Load
December 2025
181 departures · 17,394 passengers
76.1%
Load
January 2026
182 departures · 16,564 passengers
68.8%
Load
February 2026
180 departures · 17,275 passengers
64.6%
Load
March 2026
181 departures · 17,332 passengers
83.2%
Load
April 2026
198 departures · 17,865 passengers
76.4%
Load
May 2026
229 departures · 21,498 passengers
79.1%
Load
June 2026
226 departures · 20,150 passengers
86.8%
Load
By direction
Each direction is filed separately — they rarely match.
ONT → SLC
92.0% full
113 departures · 10,692 passengers
SLC → ONT
81.6% full
113 departures · 9,458 passengers
Nonstop ONT–SLC traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Ontario (ONT) from Salt Lake City (SLC)?
ONT to SLC is 558 miles (898 km / 485 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ONT to SLC?
A nonstop covers the 558-mile great-circle distance in roughly 1h 55m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ONT–SLC?
In June 2026, the Airbus A220-100 flew the largest share of departures (58.0%), followed by the Embraer E175 (26.6%).
What mileage do I earn flying ONT–SLC?
Distance-based programs credit off the 558-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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