January is by far the best month, wherein you can get cheapest flights for Ontario to Baltimore. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Ontario
06:00
Ontario
Ontario International Airport
Mon , 02 Feb 2026

Baltimore
18:14
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Mon, 02 Feb 2026

Ontario
22:30
Ontario
Ontario International Airport
Sun , 01 Feb 2026

Baltimore
09:24
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Mon, 02 Feb 2026

Ontario
06:00
Ontario
Ontario International Airport
Sun , 01 Feb 2026

Baltimore
18:14
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sun, 01 Feb 2026

Ontario
13:11
Ontario
Ontario International Airport
Sat , 31 Jan 2026

Baltimore
23:44
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sat, 31 Jan 2026

Ontario
13:24
Ontario
Ontario International Airport
Sat , 31 Jan 2026

Baltimore
23:15
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sat, 31 Jan 2026

Ontario
06:00
Ontario
Ontario International Airport
Sun , 01 Feb 2026

Baltimore
16:06
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sun, 01 Feb 2026

Ontario
10:15
Ontario
Ontario International Airport
Sat , 31 Jan 2026

Baltimore
19:20
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sat, 31 Jan 2026

Ontario
05:05
Ontario
Ontario International Airport
Sun , 01 Feb 2026

Baltimore
15:04
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sun, 01 Feb 2026

Ontario
07:16
Ontario
Ontario International Airport
Sat , 31 Jan 2026

Baltimore
23:10
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sat, 31 Jan 2026

Ontario
10:58
Ontario
Ontario International Airport
Sat , 31 Jan 2026

Baltimore
23:10
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Sat, 31 Jan 2026

Ontario
19:30
Ontario
Ontario International Airport
Sun , 01 Feb 2026

Baltimore
10:19
Baltimore
Baltimore Washington International Thurgood Marshall Airport
Mon, 02 Feb 2026










Flying from Ontario to Baltimore has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Ontario to Baltimore is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Ontario International Airport (ONT) and Baltimore Washington International Thurgood Marshall Airport (BWI). You can expect a flight distance of approximately 3666 km, and most direct services cover it in around 11:37.
Let’s take a closer look at everything you need to know before booking your flight from Ontario to Baltimore.
| Flight Details | Information |
|---|---|
| Route Distance | 3666 km |
| Average Flight Time | 11:37 hrs |
| Departure Airport | Ontario International Airport (ONT) |
| Arrival Airport | Baltimore Washington International Thurgood Marshall Airport (BWI) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | Hawaiian Airlines, Delta Airlines, United Airlines, Southwest |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.