$91+ Cheap flights from Baltimore to Ontario (BWI - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ONT
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Baltimore/Washington to Ontario are usually found in February or January, booked 15 days in advance, depart on a Thursday or Wednesday and return on a Wednesday
Cheap flight deals from Baltimore to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to OntarioExplore the most affordable flight options available from Baltimore to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Baltimore to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
2 stops25h 03m
Tue 11/175:07 pm -
2 stops14h 45m
Deal found 10/22![Frontier logo]()
$154
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
2 stops25h 03m
Thu 11/122:23 pm -
2 stops17h 29m
Deal found 10/21![Frontier logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
1 stop8h 01m
Mon 11/168:03 pm -
1 stop11h 49m
Deal found 10/21![Frontier logo]()
$182
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:00 am -
2 stops15h 31m
Sat 12/128:44 am -
2 stops20h 58m
Deal found 10/24![Frontier logo]()
$187
This Mytrip deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:07 pm -
2 stops22h 33m
Mon 11/168:35 pm -
2 stops11h 17m
Deal found 10/23![Frontier logo]()
$191
This Mytrip deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/151:05 pm -
2 stops25h 46m
Wed 12/162:53 pm -
2 stops21h 24m
Deal found 10/23![Frontier logo]()
$206
Best flights from Baltimore to OntarioDiscover carefully curated flight deals from Baltimore to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Baltimore to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:15 am -
1 stop7h 30m
Sun 12/610:35 am -
1 stop7h 50m
Deal found 10/21![Southwest logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
1 stop12h 05m
Mon 12/75:01 pm -
1 stop9h 36m
Deal found 10/22![Alaska Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/215:20 pm -
1 stop9h 21m
Tue 1/57:00 am -
1 stop7h 03m
Deal found 10/20![Delta logo]()
$505
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/510:35 am -
2 stops13h 25m
Mon 1/116:00 am -
2 stops12h 32m
Deal found 10/23![United Airlines logo]()
$515
This Southwest deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/162:00 pm -
1 stop9h 00m
Wed 1/206:55 pm -
1 stop7h 35m
Deal found 10/24![Southwest logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:00 am -
1 stop19h 31m
Thu 12/35:01 pm -
1 stop9h 36m
Deal found 10/21![Alaska Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:15 pm -
1 stop8h 50m
Thu 12/315:00 pm -
1 stop9h 40m
Deal found 10/24![Southwest logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am -
1 stop16h 03m
Thu 12/35:01 pm -
1 stop9h 36m
Deal found 10/23![Alaska Airlines logo]()
$463
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:10 am -
3 stops17h 05m
Thu 12/36:40 pm -
2 stops12h 04m
Deal found 10/21![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:19 pm -
1 stop7h 32m
Fri 11/275:00 am -
2 stops13h 42m
Deal found 10/23![United Airlines logo]()
$530
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:00 am -
1 stop19h 31m
Tue 12/16:00 am -
1 stop20h 37m
Deal found 10/23![Alaska Airlines logo]()
$541
Last-minute flights from Baltimore to OntarioDiscover last-minute flight deals from Baltimore to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Ontario. Data last updated October 25, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:07 pm -
2 stops22h 33m
Mon 11/168:35 pm -
2 stops11h 17m
Deal found 10/23![Frontier logo]()
$191
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
2 stops25h 03m
Tue 11/175:07 pm -
2 stops14h 45m
Deal found 10/22![Frontier logo]()
$154
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
2 stops25h 03m
Thu 11/122:23 pm -
2 stops17h 29m
Deal found 10/21![Frontier logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
1 stop8h 01m
Mon 11/168:03 pm -
1 stop11h 49m
Deal found 10/21![Frontier logo]()
$182
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:37 am -
1 stop8h 01m
Mon 12/72:53 pm -
2 stops18h 17m
Deal found 10/22![Frontier logo]()
$210
One-way flights from Baltimore to OntarioSearch for one-way flight options from Baltimore to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Baltimore to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Super.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:37 am -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$91
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:37 am -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$92
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:42 pm -
1 stop26h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$98
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:37 am -
2 stops15h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$101
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
2 stops15h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$113
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:42 pm -
2 stops18h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$115
Find flight deals from Baltimore to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $154 (Mytrip) |
One-way from | $91 (Super.com) |
Popular in | December |
Cheapest in | February |
Average price | $465 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Baltimore to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Thu 11/12
6:28 pm-10:42 am
2 stops19h 14m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$165
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Wed 2/10
12:38 pm-12:05 am
2 stops14h 27m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$171
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Mon 1/11
4:39 pm-10:14 pm
1 stop8h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$188
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Thu 11/26
10:10 am-3:59 pm
1 stop8h 49m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$188
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Tue 12/8
6:00 am-11:07 am
1 stop8h 07m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$188
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Tue 2/9
8:15 am-12:40 pm
1 stop7h 25m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$253
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Wed 2/10
4:07 pm-10:15 pm
1 stop9h 08m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$268
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Wed 11/25
7:00 am-3:05 pm
1 stop11h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$280
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Mon 11/23
7:00 am-3:05 pm
1 stop11h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$281
BaltimoreOntario
BWI Baltimore/Washington - ONT Ontario
BWIONT
Baltimore/Washington
Wed 12/16
6:10 am-12:34 pm
2 stops9h 24m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$300
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Baltimore to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Baltimore-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Baltimore to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Baltimore with our price prediction graph.
BWI-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Baltimore to Ontario
Prices
More
How far ahead should I book a flight from Baltimore to Ontario?
The price you pay for your flight from Baltimore to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Baltimore to Ontario?
Currently, February is the cheapest month in which you can book a flight from Baltimore to Ontario (average of $371). Flying from Baltimore to Ontario in December is currently the most expensive (average of $564). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BWI to ONT?
Find hourly flight availability from Baltimore to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 25, 2026.
It’s typically best to fly out from Baltimore to Ontario in the morning. Doing so could potentially save you 28% on the flight price compared to flying in the evening, which is usually more expensive.
What’s the top layover airport for flights from Baltimore to Ontario?
Share of 1-stop round-trip flights from Baltimore to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Houston (IAH) – chosen by Cheapflights users on 33% of 1-stop itineraries from Baltimore to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Baltimore to Ontario?
Average round-trip fare for 1-stop flights from Baltimore to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Houston (IAH) is the most affordable 1-stop option, with an average round-trip price of $359.
What’s the fastest layover option from Baltimore to Ontario?
Shortest average travel time for 1-stop one-way flights from Baltimore to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 18m.
Which airport typically offers the quickest layover for flights from Baltimore to Ontario?
Average layover duration for 1-stop one-way flights from Baltimore to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 0h 52m.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated October 25, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Baltimore to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Comfort
8.0
Food
7.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Related info for your journey
Find useful and relevant information for your journey from Baltimore to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Baltimore to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to Ontario by cabin class
Find flights from Baltimore to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Baltimore and Ontario flights
Browse other Baltimore and Ontario flight options. Last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Baltimore to Ontario
Discover the top 5 airlines that operate flights from Baltimore to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$192 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$358 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$344 | Average$484 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$352 | Average$488 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$466 | Average$630 | FlexibilityNo cancel fee | On-time71% |