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$70+ Cheap flights from Baltimore to Ontario (BWI - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ONT
Nov 4 — Nov 111
1 adult
Mon 11/4
Mon 11/11
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The best prices from Baltimore/Washington to Ontario are usually found in September or August, booked 25 days in advance, depart on a Monday or Saturday and return on a Wednesday

Cheap 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 30, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

September

Round-trip from

$148
(Frontier)

One-way from

$70
(Frontier)
Provider with most accurate pricing for Baltimore/Washington-Ontario flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Ontario flights.
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High demand for flights, 31% potential price rise
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Best time to find cheap flights, 24% potential price drop
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From Baltimore/Washington to Ontario
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One-way flight from Baltimore/Washington to Ontario
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Find flight deals from Baltimore to Ontario

Cheapest flights from Baltimore to Ontario
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 30, 2024.

This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/149:24 pmBWI - ONT
1 stop13h 07mFrontier
Mon 11/186:30 amONT - BWI
1 stop8h 29mFrontier
Deal found 10/30$148
This Orbitz deal was found by Cheapflights users on 10/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/153:23 pmBWI - ONT
1 stop11h 06mMultiple Airlines
Mon 11/187:59 pmONT - BWI
2 stops19h 00mMultiple Airlines
Deal found 10/29$342
This Delta deal was found by Cheapflights users on 10/30. 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.
Sat 11/236:21 pmBWI - ONT
1 stop8h 15mDelta
Thu 11/287:10 amONT - BWI
1 stop8h 03mDelta
Deal found 10/30$346
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 11/257:05 amBWI - ONT
1 stop9h 22mAlaska Airlines
Thu 11/286:00 amONT - BWI
1 stop8h 59mAlaska Airlines
Deal found 10/29$366
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:00 amBWI - ONT
1 stop7h 35mSouthwest
Fri 12/136:15 amONT - BWI
1 stop6h 30mSouthwest
Deal found 10/29$406
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/288:40 amBWI - ONT
1 stop9h 04mUnited Airlines
Thu 12/51:40 pmONT - BWI
1 stop6h 41mUnited Airlines
Deal found 10/29$481
This American Airlines deal was found by Cheapflights users on 10/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:04 amBWI - ONT
2 stops12h 19mAmerican Airlines
Wed 12/116:10 amONT - BWI
2 stops9h 54mAmerican Airlines
Deal found 10/30$486

Find flights from Baltimore to Ontario within your budget

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 2,570,725 searches. Data last updated October 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$148 - $486

Route

Depart

Return

Price

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Thu 11/14

1 stop13h 07m

Ontario

Mon 11/18

1 stop8h 29m

$148

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Fri 11/15

1 stop11h 06m

Ontario

Mon 11/18

2 stops19h 00m

$342

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Sat 11/23

1 stop8h 15m

Ontario

Thu 11/28

1 stop8h 03m

$346

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Mon 11/25

1 stop9h 22m

Ontario

Thu 11/28

1 stop8h 59m

$366

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Wed 12/11

1 stop7h 35m

Ontario

Fri 12/13

1 stop6h 30m

$406

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Thu 11/28

1 stop9h 04m

Ontario

Thu 12/5

1 stop6h 41m

$481

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Tue 12/3

2 stops12h 19m

Ontario

Wed 12/11

2 stops9h 54m

$486

Flights are sorted by cheapest first

Deals found on 10/29

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.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
PricelinePrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
MytripPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
CheapfaremartPrice Accuracy-Trust Score*1 starCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from Baltimore to Ontario

Get recent, data-driven insights about flights from Baltimore to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Baltimore to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Ontario. Price data was last updated on October 25, 2024.

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 25 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Find deals

What is the cheapest month to book a flight from Baltimore to Ontario?

Currently, September is the cheapest month in which you can book a flight from Baltimore to Ontario (average of $236). Flying from Baltimore to Ontario in December is currently the most expensive (average of $288). 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 30, 2024.

It’s typically best to fly out from Baltimore to Ontario at noon. Doing so could potentially save you 41% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Baltimore to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Ontario. Price data was last updated on October 27, 2024.

Travelers seeking maximum savings on their Baltimore to Ontario flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Find deals

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 30, 2024.
See what other customers who have flown with Frontier, Delta and Alaska Airlines from Baltimore to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,118 reviews

Boarding

8.3

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,118 reviews
Southwest
8.1
Very good
5,118 reviews

Boarding

8.3

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,418 reviews
Southwest
8.1
Very good
5,118 reviews

Boarding

8.3

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,836 reviews
Southwest
8.1
Very good
5,118 reviews

Boarding

8.3

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,240 reviews
Southwest
8.1
Very good
5,118 reviews

Boarding

8.3

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.3
Good
10,000 reviews
Southwest
8.1
Very good
5,118 reviews

Boarding

8.3

Comfort

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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.

  • Can I find flights from Baltimore to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Baltimore to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $148, but on average you can expect to pay $367.

  • Are there last-minute flights available from Baltimore to Ontario for under $300?

    There are currently 5+ open flights from Baltimore to Ontario within the next 7 days for less than $300.

  • What are the cheapest airlines flying from Baltimore to Ontario round-trip?

    Cheapflights users have booked flights from Baltimore to Ontario round-trip from $148. Other airlines that can offer you cheap pricing are Delta, from $346, and Alaska Airlines, from $366. Frontier is priced at 63% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Baltimore to Ontario one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $70. Delta flights start at $173 while deals on Southwest start at $190 one-way.

  • What does BWI to ONT mean?

    This is defined as Baltimore/Washington Airport (BWI) and Ontario Airport (ONT). Codes like Ontario Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Baltimore to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Baltimore to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Baltimore to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Baltimore to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Baltimore to Ontario that include hotel bookings?

    Yes. In addition to deals on Baltimore to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Ontario.

  • Can I find deals for business class flights from Baltimore to Ontario?

    Yes. Cheapflights offers flight deals from Baltimore to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Baltimore to Ontario that allow pets onboard?

    Many airlines flying from Baltimore to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Baltimore to Ontario?

    Yes, you can often find last-minute deals on Baltimore to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Baltimore to Ontario flight deals updated?

    The Baltimore to Ontario flight deals you see on this page were last updated on 10/30.

  • What is the cheapest month to book a flight from Baltimore to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to Ontario (average of $236). Flying from Baltimore to Ontario in December is currently the most expensive (average of $288). 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.

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Top 6 airlines flying from Baltimore to Ontario

Discover the top 6 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 2,570,725 searches. Data last updated October 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$198FlexibilityNo cancel feeOn-time65%
FrontierCheapest$145Average$250FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$286Average$533FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$294Average$519FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$458FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$326Average$431FlexibilityNo cancel feeOn-time63%
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