Baltimore (BWI) to Ontario (ONT)
Flight time
≈ 5h 21m
Bearing
274° W
Baltimore (BWI) to Ontario (ONT) is 2,278 miles (3,666 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BWI–ONT
Filed traffic dataIn July 2026, Southwest Airlines was the only carrier flying nonstop BWI–ONT; the Boeing 737-700 was the most common aircraft at 48% of departures; flights ran 86% full.
Departures
61
July 2026
Seats
9,573
both directions
Passengers
8,253
both directions
Load factor
86.2%
RPM ÷ ASM
Who flies BWI–ONT?
Southwest Airlines was the only carrier to fly nonstop BWI–ONT in July 2026 (61 departures).
- WN
61 departures · 9,573 seats
Share of departures100.0%86.2%
Load
What plane flies BWI–ONT?
In July 2026, the Boeing 737-700 flew 48% of BWI–ONT departures — more than any other aircraft type.
- Boeing 737-700
29 departures · 91.7% load
47.5% - Boeing 737-800
16 departures · 82.9% load
26.2% - Boeing 737 MAX 8
16 departures · 81.7% load
26.2%
How has BWI–ONT traffic changed?
Nonstop BWI–ONT departures rose from 60 in August 2025 to 61 in July 2026.
Monthly nonstop BWI–ONT traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
60 departures · 6,501 passengers
64.9%
Load
September 2025
60 departures · 6,254 passengers
62.8%
Load
October 2025
62 departures · 7,349 passengers
68.5%
Load
November 2025
39 departures · 4,163 passengers
61.0%
Load
December 2025
34 departures · 4,441 passengers
74.6%
Load
January 2026
8 departures · 1,219 passengers
87.1%
Load
February 2026
0 departures · 0 passengers
—
Load
March 2026
54 departures · 6,316 passengers
67.1%
Load
April 2026
60 departures · 7,584 passengers
72.2%
Load
May 2026
62 departures · 8,288 passengers
76.4%
Load
June 2026
60 departures · 8,397 passengers
88.3%
Load
July 2026
61 departures · 8,253 passengers
86.2%
Load
By direction
Each direction is filed separately — they rarely match.
ONT → BWI
89.6% full
31 departures · 3,872 passengers
BWI → ONT
83.5% full
30 departures · 4,381 passengers
Nonstop BWI–ONT traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Baltimore
US
Baltimore/Washington International Thurgood Marshall Airport
Coordinates
39.18°N, 76.67°W
Hemisphere
N · W
Frequently asked
How far is Baltimore (BWI) from Ontario (ONT)?
BWI to ONT is 2,278 miles (3,666 km / 1,979 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BWI to ONT?
A nonstop covers the 2,278-mile great-circle distance in roughly 5h 21m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BWI–ONT?
In July 2026, the Boeing 737-700 flew the largest share of departures (47.5%), followed by the Boeing 737-800 (26.2%).
What mileage do I earn flying BWI–ONT?
Distance-based programs credit off the 2,278-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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