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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
$259
Southwest Airlines
• 1 stop
• 12h 15m
Nov 01 – Nov 01
The cheapest round trip flight from Baltimore to Ontario (BWI-ONT-BWI) is currently $259
Cheapest One way Flight
$323
Delta Airlines
• 1 stop
• 13h 26m
Nov 04
The cheapest one way flight from Baltimore to Ontario (BWI-ONT) is currently $323
Fastest Flight
11h 55m
The fastest nonstop flight from Baltimore to Ontario (BWI-ONT) takes 11h 55m
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.
Nov 01 - Nov 01, Economy
Baltimore → Ontario
12h 15m
6:05 AM - 10:40 AM • 1 stop
Baltimore → Ontario
17h 25m
4:00 PM - 5:45 AM • 1 stop
Southwest Airlines
Nov 01 - Nov 03, Economy
Baltimore → Ontario
12h 21m
7:05 PM - 11:46 PM • 1 stop
Baltimore → Ontario
10h 54m
6:00 AM - 3:54 PM • 1 stop
American Airlines
Oct 31 - Dec 12, Economy
Baltimore → Ontario
12h 20m
8:20 AM - 1:00 PM • 1 stop
Baltimore → Ontario
7h 25m
9:55 PM - 5:40 AM • nonstop
Southwest Airlines
Oct 31 - Dec 12, Economy
Baltimore → Ontario
11h 55m
8:30 AM - 12:45 PM • 1 stop
Baltimore → Ontario
7h 25m
6:55 AM - 2:40 PM • nonstop
Southwest Airlines
Oct 31 - Dec 12, Economy
Baltimore → Ontario
13h 56m
7:00 AM - 12:36 PM • 1 stop
Baltimore → Ontario
11h 41m
11:49 AM - 9:50 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 6:00 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 DL : USD 1059
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 7:05 pm
Essential Information for Booking Flights from Baltimore (BWI) - AI Insights
What's the cheapest airline from bwi to ont?
For a round-trip flight from Baltimore/Washington International Thurgood Marsha Airport (BWI) to Ontario International Airport (ONT) with 4 passengers, consider booking with Southwest Airlines (WN) for a budget-friendly option. You can find affordable airfares on their website, especially if you book in advance, such as 23 days prior to your trip. This will help you secure the cheapest flights available.
What's the popular airline to fly from bwi to ont?
You can fly from Baltimore/Washington International Thurgood Marsha Airport (bwi) to Ontario International Airport (ont) with Southwest Airlines (WN), which offers a budget-friendly option for your round-trip journey. Please book in advance to secure the best Low Fares. You can find the cheapest flights on our website.
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 (BWI) to Ontario International (ONT) is Thursday, which is often considered the cheapest day to fly. This is due to lower demand and airfare prices on this day. You can find budget-friendly flights on Thursday to make your round-trip journey more affordable.
What's the cheapest month to fly from bwi to ont?
The cheapest month to fly from Baltimore/Washington International Thurgood Marsha (BWI) to Ontario International (ONT) is November, with budget-friendly flights available during this time.
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 Aeromexico, Southwest Airlines, Alaska Airlines, Icelandair, American Airlines, Sun Country Airlines, Delta Airlines, Frontier Airlines, United Airlines, and JetBlue Airways.
What is the estimated airfare from Baltimore/Washington International Thurgood Marsha to Ontario International for a round-trip economy flight with 4 passengers?
The estimated airfare from Baltimore/Washington International Thurgood Marsha to Ontario International for a round-trip economy flight with 4 passengers is available on Southwest Airlines (WN) with advance booking days starting from 23 days prior to departure.
How many advance booking days are available for flights from Milwaukee to Ontario International?
Advance booking days for flights from Milwaukee to Ontario International are available on Southwest Airlines (WN) with 23 days prior to departure.
Can I book flights on your airline through your website for a weekend getaway in July?
Yes, you can book flights on Southwest Airlines (WN) through our website for a weekend getaway in July.
What is the typical duration of a round-trip flight from Ontario International?
The typical duration of a round-trip flight from Ontario International is approximately 4 hours and 30 minutes.
How can I find the best airfare deals on your airline for my trip?
You can find the best airfare deals on Southwest Airlines (WN) by using our website and comparing prices across different routes and travel dates.
Can I book a busco flight with your agency?
No, we do not offer busco flights. However, you can book flights on Southwest Airlines (WN) through our website.
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 |
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