Did you mean Flights from Ontario to Baltimore?
Baltimore
United StatesBWI
Baltimore/Washington International Thurgood Marshal Airport
Ontario
United StatesONT
Ontario International Airport
A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.
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Baltimore/Washington International Thurgood Marshal Airport (BWI) serves Baltimore; Ontario International Airport (ONT) serves Ontario.
The airports are 2,278 miles apart by great-circle distance.
Roame's current schedule feed lists service with stops from BWI to ONT, but no nonstop service.
Marketing airlines listed in the current schedule, including codeshare sellers, are Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.
Published schedule dates span Nov 24, 2026 – May 30, 2027.
These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.
Baltimore/Washington International Thurgood Marshal Airport (BWI) is the origin airport and Ontario International Airport (ONT) is the destination airport.
BWI and ONT are approximately 2,278 miles apart by great-circle distance.
No. Roame's current schedule feed lists service with stops from BWI to ONT, but no nonstop service.
Marketing airlines listed in the current schedule, including codeshare sellers, are Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.
Aircraft listed in the current schedule include Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8) and 7S7.