Oakland (OAK) to Ontario (ONT)
Flight time
≈ 1h 31m
Bearing
133° SE
Oakland (OAK) to Ontario (ONT) is 362 miles (582 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies OAK–ONT
US DOT T-100 · filed dataIn April 2026, Southwest Airlines was the only carrier flying nonstop OAK–ONT; the Boeing 737-700 was the most common aircraft at 46% of departures; flights ran 54% full.
Departures
232
April 2026
Seats
36,534
both directions
Passengers
19,880
both directions
Load factor
54.4%
passengers ÷ seats
Who flies OAK–ONT?
Southwest Airlines was the only carrier to fly nonstop OAK–ONT in April 2026 (232 departures).
- WN
Southwest Airlines
232 departures · 36,534 seats
Share of departures100.0%54.4%
Load
What plane flies OAK–ONT?
In April 2026, the Boeing 737-700 flew 46% of OAK–ONT departures — more than any other aircraft type.
- Boeing 737-700
107 departures · 58.7% load
46.1% - Boeing 737 MAX 8
72 departures · 54.5% load
31.0% - Boeing 737-800
53 departures · 47.6% load
22.8%
How has OAK–ONT traffic changed?
Nonstop OAK–ONT departures fell from 291 in May 2025 to 232 in April 2026.
Monthly nonstop OAK–ONT traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
291 departures · 26,792 passengers
55.5%
Load
June 2025
271 departures · 24,535 passengers
57.9%
Load
July 2025
269 departures · 22,751 passengers
54.5%
Load
August 2025
272 departures · 26,462 passengers
61.9%
Load
September 2025
268 departures · 27,255 passengers
64.4%
Load
October 2025
272 departures · 26,462 passengers
63.3%
Load
November 2025
251 departures · 25,638 passengers
63.9%
Load
December 2025
247 departures · 25,225 passengers
63.9%
Load
January 2026
239 departures · 19,225 passengers
52.9%
Load
February 2026
229 departures · 19,365 passengers
57.0%
Load
March 2026
241 departures · 22,442 passengers
60.5%
Load
April 2026
232 departures · 19,880 passengers
54.4%
Load
By direction
The DOT files each direction separately — they rarely match.
OAK → ONT
55.1% full
116 departures · 10,347 passengers
ONT → OAK
53.7% full
116 departures · 9,533 passengers
Nonstop OAK–ONT traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Oakland
US
San Francisco Bay Oakland International Airport
Coordinates
37.72°N, 122.22°W
Hemisphere
N · W
Frequently asked
How far is Oakland (OAK) from Ontario (ONT)?
OAK to ONT is 362 miles (582 km / 314 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from OAK to ONT?
A nonstop covers the 362-mile great-circle distance in roughly 1h 31m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies OAK–ONT?
In April 2026, the Boeing 737-700 flew the largest share of departures (46.1%), followed by the Boeing 737 MAX 8 (31.0%).
What mileage do I earn flying OAK–ONT?
Distance-based programs credit off the 362-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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