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.
Look up a route, or build a trip
Change the airports, or add stops for a multi-leg trip.
What actually flies BWI–ONT
Filed traffic dataIn May 2026, Southwest Airlines was the only carrier flying nonstop BWI–ONT; the Boeing 737 MAX 8 was the most common aircraft at 65% of departures; flights ran 76% full.
Departures
62
May 2026
Seats
10,850
both directions
Passengers
8,288
both directions
Load factor
76.4%
RPM ÷ ASM
Who flies BWI–ONT?
Southwest Airlines was the only carrier to fly nonstop BWI–ONT in May 2026 (62 departures).
- WN
62 departures · 10,850 seats
Share of departures100.0%76.4%
Load
What plane flies BWI–ONT?
In May 2026, the Boeing 737 MAX 8 flew 65% of BWI–ONT departures — more than any other aircraft type.
- Boeing 737 MAX 8
40 departures · 73.2% load
64.5% - Boeing 737-800
22 departures · 82.1% load
35.5%
How has BWI–ONT traffic changed?
Nonstop BWI–ONT departures rose from 52 in June 2025 to 62 in May 2026.
Monthly nonstop BWI–ONT traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
52 departures · 7,256 passengers
81.2%
Load
July 2025
62 departures · 7,776 passengers
72.5%
Load
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
By direction
Each direction is filed separately — they rarely match.
BWI → ONT
81.2% full
31 departures · 4,406 passengers
ONT → BWI
71.6% full
31 departures · 3,882 passengers
Nonstop BWI–ONT traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 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 May 2026, the Boeing 737 MAX 8 flew the largest share of departures (64.5%), followed by the Boeing 737-800 (35.5%).
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.
Keep exploring
Every route below is its own page.
Popular long-haul routes