Lowest Prices
Uncover the best deals on Baltimore to Ontario flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest BWI - ONT Flights
Useful information for finding best airline tickets from Baltimore/Washington International Thurgood Marsha to Ontario International on your next trip.
Cheapest Round Trip Flight
$340
American Airlines
• 1 stop
• 12h 33m
Oct 23 – Oct 25
The cheapest round trip flight from Baltimore to Ontario (BWI-ONT-BWI) is currently $340
Cheapest One way Flight
$413
Southwest Airlines
• 1 stop
• 13h 30m
Oct 23
The cheapest one way flight from Baltimore to Ontario (BWI-ONT) is currently $413
Fastest Flight
12h 10m
The fastest nonstop flight from Baltimore to Ontario (BWI-ONT) takes 12h 10m
Top Airlines Flying from Baltimore to Ontario
Latest Flight Deals from Baltimore (BWI) to Ontario (ONT)
Compare and book low fare round-trip air tickets from Baltimore to Ontario. Ideal for travelers with confirmed return itineraries.
Oct 23 - Oct 25, Economy
Baltimore → Ontario
12h 33m
7:00 AM - 11:53 AM • 1 stop
Baltimore → Ontario
15h 29m
10:25 AM - 10:54 PM • 1 stop
American Airlines
Oct 23 - Oct 25, Economy
Baltimore → Ontario
12h 37m
6:02 PM - 10:59 PM • 1 stop
Baltimore → Ontario
11h 51m
12:43 PM - 10:54 PM • 1 stop
American Airlines
Oct 23 - Oct 25, Economy
Baltimore → Ontario
15h 30m
7:00 AM - 1:30 PM • 1 stop
Baltimore → Ontario
12h 15m
10:10 PM - 8:45 AM • 1 stop
American Airlines
Oct 23 - Oct 25, Economy
Baltimore → Ontario
13h 50m
4:50 PM - 10:20 PM • 1 stop
Baltimore → Ontario
11h 45m
1:50 PM - 11:55 PM • 1 stop
Southwest Airlines
Oct 23 - Oct 25, Economy
Baltimore → Ontario
15h 22m
12:00 PM - 6:22 PM • 1 stop
Baltimore → Ontario
12h
7:07 AM - 5:27 PM • 1 stop
Delta Airlines
Explore competitive one-way airfare options for BWI - ONT flights. Best suited for flexible or open-ended travel plans.
Flying to Ontario soon? We've surfaced some of the most affordable last-minute flights from Baltimore to Ontario, ideal for urgent plans or spontaneous trips.
FAQs on Baltimore to Ontario Flights
What are the airports in Baltimore?
IAD,BWI,DCA
What’s the most popular airline flying from BWI to ONT?
The most popular airline flying from Baltimore to Ontario are
Can I fly from BWI to ONT non-stop?
NO
Which airlines fly nonstop between Baltimore and Ontario?
The non-stop flights between Baltimore and Ontario are .
What’s the earliest departure time from BWI to ONT Airport?
The earliest flight leaves BWI at 6:05 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Baltimore to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BWI to ONT?
Read the fare rules of the Baltimore to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Baltimore and Ontario?
operate flights between Baltimore and Ontario
How long does a flight from Baltimore to Ontario take?
It takes approximately 5 hour to fly non-stop from BWI to ONT, which is 2282.96 miles by air.
Which airlines provide the cheapest flights from Baltimore (BWI) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from BWI were found on WN : USD 419
Do I need a passport to fly between BWI and ONT?
No
What’s the latest departure time from BWI to ONT ?
The last flight leaves BWI at 10:10 pm
Essential Information for Booking Flights from Baltimore (BWI) - AI Insights
What's the cheapest airline from bwi to ont?
You can find the cheapest flights from Baltimore/Washington International Thurgood Marsha Airport (bwi) to Ontario International Airport (ont) with Southwest Airlines (WN). For a one-way trip, consider booking at least 19 days in advance to secure the best budget-friendly flights. When searching for affordable airfares, use keywords like "cheap airline tickets" and "cheapest flights" to find the best deals.
What's the popular airline to fly from bwi to ont?
For a one-way flight from Baltimore/Washington International Thurgood Marsha (bwi) to Ontario International (ont), consider Southwest Airlines (WN) as a popular option. They offer budget-friendly flights with relatively low fares. Booking in advance can help secure the best airfare.
What's the cheapest day of the week to fly from bwi to ont?
The cheapest day to fly from Baltimore/Washington International Thurgood Marsha Airport (BWI) to Ontario International Airport (ONT) is Sunday. Flying on Sundays can result in budget-friendly flights and savings on airfares. You can find low fares and affordable flights by booking in advance, ideally 19 days prior to your trip.
What's the cheapest month to fly from bwi to ont?
The cheapest month to fly from BWI to ONT is November.
Which airline/airlines fly from bwi to ont?
The airlines that fly from Baltimore/Washington International Thurgood Marsha Airport (BWI) to Ontario International Airport (ONT) include Icelandair, Southwest Airlines, Alaska Airlines, Delta Airlines, JetBlue Airways, Frontier Airlines, Aeromexico, United Airlines, Sun Country Airlines, and American Airlines. You can find budget-friendly flights on these airlines, which offer affordable airfares and airfares for your one-way trip.
What is the average cost of an airfare from Baltimore/Washington International Thurgood Marsha to Ontario International?
The average cost of an airfare from Baltimore/Washington International Thurgood Marsha to Ontario International is around $300.
How many advance booking days do I need to book a one-way airfare?
You need to book a one-way airfare at least 19 days in advance.
Can I book a busco flight with fareleaders.com?
No, fareleaders.com does not offer busco flights.
How do I search for flights on fareleaders.com using my preferred airline?
You can search for flights on fareleaders.com by selecting your preferred airline from the search options.
What is the difference between airfare and airfares on fareleaders.com?
Airfare and airfares on fareleaders.com refer to the cost of a single flight, not the total cost of a trip.
Can I book a ticket for a July weekend trip on fareleaders.com?
Yes, you can book a ticket for a July weekend trip on fareleaders.com.
How do I use the fareleaders.com website to find the best airfare deals?
You can use the fareleaders.com website to find the best airfare deals by searching for flights and comparing prices.
Baltimore (BWI) to Ontario (ONT): Airport Information
| Origin Airport | Baltimore/Washington International Thurgood Marsha, Baltimore, US |
| Destination Airport | Ontario International , Ontario, US |
| Distance | 2283 miles |
More Flight Options for Baltimore (BWI) and Ontario (ONT)
Flights from Washington (IAD)
to Las Vegas (LAS)
Flights from Washington (IAD)
to Las Vegas (LAS)
Flights from Washington (DCA)
to Milwaukee (MKE)
Flights from Baltimore (BWI)
to Atlanta (ATL)
Flights from Baltimore (BWI)
to Atlanta (ATL)
Flights from Baltimore (BWI)
to Miami (MIA)
Flights from Baltimore (BWI)
to Miami (MIA)
Flights from Baltimore (BWI)
to Orlando (MCO)
Flights from Baltimore (BWI)
to Orlando (MCO)
Flights from Washington (DCA)
to Dallas (DAL)
Flights from Baltimore (BWI)
to Houston (HOU)
Flights from Washington (DCA)
to Memphis (MEM)
Flights from Washington (DCA)
to Boston (BOS)
Flights from Baltimore (BWI)
to Fort Lauderdale (FLL)
Flights from Baltimore (BWI)
to Fort Lauderdale (FLL)
Flights from Washington (DCA)
to Miami (MIA)
Flights from Baltimore (BWI)
to Fort Myers (RSW)
Flights from Baltimore (BWI)
to Fort Myers (RSW)
Flights from Baltimore (BWI)
to Los Angeles (LAX)
Flights from Baltimore (BWI)
to Los Angeles (LAX)
Flights from Denver (DEN)
to Ontario (ONT)
Flights from Denver (DEN)
to Ontario (ONT)
Flights from Columbus (CMH)
to Ontario (ONT)
Flights from Columbus (CMH)
to Ontario (ONT)
Flights from New York (LGA)
to Ontario (ONT)
Flights from New York (LGA)
to Ontario (ONT)
Flights from Dallas (DFW)
to Ontario (ONT)
Flights from Dallas (DFW)
to Ontario (ONT)
Flights from Baltimore (BWI)
to Ontario (ONT)
Flights from Baltimore (BWI)
to Ontario (ONT)
Flights from New York (JFK)
to Ontario (ONT)
Flights from Dallas (DAL)
to Ontario (ONT)
Flights from Dallas (DAL)
to Ontario (ONT)
Flights from San Francisco (SFO)
to Ontario (ONT)
Flights from San Francisco (SFO)
to Ontario (ONT)
Flights from Orlando (MCO)
to Ontario (ONT)
Flights from Orlando (MCO)
to Ontario (ONT)
Flights from Sacramento (SMF)
to Ontario (ONT)
Flights from Sacramento (SMF)
to Ontario (ONT)
Flights from Atlanta (ATL)
to Ontario (ONT)
Cheap flights to North America (NA)
Cheap flights to United States (US)
Cheap flights to California (US-CA)
Cheap flights to Maryland (US-MD)
Cheap flights from North America (NA)
Cheap flights from United States (US)
Cheap flights from California (US-CA)
Cheap flights from Maryland (US-MD)
Flights to Baltimore (BWI)
Flights to Baltimore (BWI)
Flights to Washington (DCA)
Flights to Washington (IAD)
Flights to Ontario (ONT)
Flights to Ontario (ONT)
Flights from Baltimore (BWI)
Flights from Washington (DCA)
Flights from Washington (IAD)
Flights from Ontario (ONT)
Flights from Ontario (ONT)
to Baltimore (BWI)
Flights from Ontario (ONT)
to Baltimore (BWI)
Flights from Ontario (ONT)
to Washington (DCA)
Flights from Ontario (ONT)
to Washington (DCA)
Flights from Ontario (ONT)
to Washington (IAD)
Why Fareleaders for BWI to ONT Plane Tickets
New Deals Everyday
Get the best prices on BWI to ONT flights—we update our fares daily so you never miss a saving.
No Service Fees
Compare hundreds of Baltimore to Ontario flights and secure the best deals—we never add any service fees.