Southwest Airlines
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Baltimore/Washington International Thurgood Marshall Ai
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United States
Ontario International Airport
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Scan through all non-stop flights from Baltimore-Washington to Ontario. The full flight schedule below gives an overview of all non-stop flights from BWI to ONT, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
In Ontario, the summers are known for being warm, long, and dry, with temperatures typically reaching about 30°C (86°F). The area’s breathtaking scenery complements the sun-filled lifestyle, making it a popular destination for visitors all year round who are looking for relaxation, fun by the water, and the beauty of the outdoors.
Ontario is best explored from mid-spring to summer, specifically between April and September, as most rainfall occurs from October to February.
Currently, there is only one airline operating non-stop flights from Baltimore-Washington BWI to Ontario ONT, which is Southwest Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their BWI ONT flight schedule.
Flights from BWI to ONT are operated 7 times a week, with an average of 1 flight per day. Departure times vary between 09:50 - 20:10. The earliest flight departs at 09:50, the last flight departs at 20:10. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from Baltimore-Washington to Ontario takes 5 hours and 15 minutes. The flight distance between Baltimore-Washington and Ontario is 2,276 miles (or 3,663 km).
There is 1 airport in Ontario: Ontario International Airport (ONT).
There are 7 flights per week flying from Baltimore-Washington to Ontario (as of April 2026).
5 hours and 15 minutes is the average flight time from Baltimore-Washington to Ontario.
The distance from Baltimore-Washington to Ontario is 2,276 miles (3,663 kilometers).
Southwest Airlines is the only airline flying nonstop from Baltimore-Washington to Ontario.
There are no alliances flying direct from Baltimore-Washington to Ontario at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Baltimore-Washington to Ontario:
The earliest flight departs at 09:50 from Baltimore-Washington and arrives at 12:05 at Ontario.
The latest flight departs at 20:10 from Baltimore-Washington and arrives at 22:25 at Ontario.
2,276 miles (3,663 km) · 5h 15m
11:20
14:05
Southwest Airlines
WN 1278
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
12:40
15:10
Southwest Airlines
WN 2416
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
12:45
15:15
Southwest Airlines
WN 2416
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
13:10
15:55
Southwest Airlines
WN 4022
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
13:45
16:20
Southwest Airlines
WN 2416
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
15:10
17:50
Southwest Airlines
WN 1278
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
18:55
21:40
Southwest Airlines
WN 1278
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
19:20
22:00
Southwest Airlines
WN 2416
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
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