Cheap flights from Baltimore to Ontario (BWI - ONT) from $85

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BWI — ONT
Jun 25 — Jul 21

The best prices from Baltimore/Washington to Ontario are usually found in September or October, booked 72 days in advance, depart on a Wednesday or Saturday and return on a Friday

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 June 20, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$238

One-way from

$85
High demand for flights, 34% potential price rise
Best time to find cheap flights, 41% potential price drop
From Baltimore/Washington to Ontario
One-way flight from Baltimore/Washington to Ontario

What is the cheapest day to fly round-trip from Baltimore to Ontario?

Users have found that flying from Baltimore to Ontario on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 89% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Baltimore to Ontario within the next two weeks, with the cheapest ticket starting at $366.

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

September is one of the best times of the year to fly to Ontario from Baltimore. Prices for September average $347 per person but you can even find prices for as low as $106. The most expensive prices can be found in the month of December. Opting for a September flight can save you 27% on your journey compared to booking in December

What is the cheapest time of day to fly from BWI to ONT?

It’s typically best to fly out from Baltimore to Ontario at noon. Doing so could potentially save you 43% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap Baltimore to Ontario flights in June & July 2024

Find cheap flight options from Baltimore to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,256,981 searches. Prices were last updated on June 20, 2024.
The lowest fares we've come across on flights traveling from Baltimore to Ontario in June and July 2024. For more flight deals, be sure to check back very soon.
Tue 7/168:54 pmBWI - ONT
1 stop13h 23mFrontier
Thu 8/156:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/19$171
Tue 7/98:54 pmBWI - ONT
1 stop13h 23mFrontier
Tue 7/168:27 amONT - BWI
1 stop8h 24mFrontier
Deal found 6/20$189
Tue 7/28:48 pmBWI - ONT
1 stop13h 24mFrontier
Wed 7/1012:39 amONT - BWI
1 stop8h 57mFrontier
Deal found 6/20$194
Sat 7/135:34 pmBWI - ONT
1 stop9h 22mFrontier
Wed 7/176:50 pmONT - BWI
1 stop11h 28mFrontier
Deal found 6/19$199
Sat 7/135:34 pmBWI - ONT
1 stop9h 22mFrontier
Wed 7/246:50 pmONT - BWI
1 stop11h 28mFrontier
Deal found 6/19$206
Tue 7/98:54 pmBWI - ONT
1 stop13h 23mFrontier
Wed 7/1712:49 amONT - BWI
1 stop8h 47mFrontier
Deal found 6/18$208
Sat 7/135:34 pmBWI - ONT
1 stop9h 22mFrontier
Mon 7/227:04 pmONT - BWI
1 stop19h 53mFrontier
Deal found 6/19$211
Wed 7/107:14 pmBWI - ONT
2 stops14h 49mFrontier
Wed 7/1712:49 amONT - BWI
1 stop8h 47mFrontier
Deal found 6/19$213
Thu 7/41:39 pmBWI - ONT
1 stop13h 05mFrontier
Wed 7/1012:39 amONT - BWI
1 stop8h 57mFrontier
Deal found 6/20$216

Baltimore to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Baltimore and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
The lowest fares we've come across on flights traveling from Baltimore to Ontario in June and July 2024. For more flight deals, be sure to check back very soon.
Tue 7/168:54 pmBWI - ONT
1 stop13h 23mFrontier
Thu 8/156:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/19$171
Sat 9/141:03 pmBWI - ONT
1 stop13h 41mFrontier
Fri 9/2012:49 amONT - BWI
1 stop8h 14mFrontier
Deal found 6/19$178
Wed 8/219:41 pmBWI - ONT
1 stop11h 26mFrontier
Sun 8/2512:49 amONT - BWI
1 stop8h 14mFrontier
Deal found 6/20$180
Sat 9/71:03 pmBWI - ONT
1 stop13h 41mFrontier
Fri 9/1312:49 amONT - BWI
1 stop8h 14mFrontier
Deal found 6/19$181
Mon 9/21:03 pmBWI - ONT
1 stop26h 29mFrontier
Sun 9/81:10 pmONT - BWI
1 stop19h 53mFrontier
Deal found 6/20$183
Wed 8/211:03 pmBWI - ONT
1 stop13h 36mFrontier
Tue 8/276:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/19$184
Mon 8/191:03 pmBWI - ONT
1 stop13h 36mFrontier
Thu 8/221:10 pmONT - BWI
1 stop19h 53mFrontier
Deal found 6/20$187
Fri 8/231:03 pmBWI - ONT
1 stop13h 36mFrontier
Sun 8/256:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/19$188
Tue 7/98:54 pmBWI - ONT
1 stop13h 23mFrontier
Tue 7/168:27 amONT - BWI
1 stop8h 24mFrontier
Deal found 6/20$189

Baltimore to Ontario flights leaving soon

Find last-minute flight options from Baltimore to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
Book one of these great deals on flights from Baltimore to Ontario. Tip: verify your flight details before completing your reservation.
Wed 6/267:09 pmBWI - ONT
2 stops14h 54mFrontier
Wed 7/1012:39 amONT - BWI
1 stop8h 57mFrontier
Deal found 6/19$304
Fri 6/287:09 pmBWI - ONT
2 stops18h 39mFrontier
Wed 7/106:50 pmONT - BWI
1 stop11h 28mFrontier
Deal found 6/19$309
Wed 6/267:09 pmBWI - ONT
2 stops14h 54mFrontier
Tue 7/168:27 amONT - BWI
1 stop8h 24mFrontier
Deal found 6/19$343
Thu 6/271:39 pmBWI - ONT
1 stop19h 44mFrontier
Fri 7/510:03 pmONT - BWI
1 stop15h 31mFrontier
Deal found 6/20$349
Wed 6/267:09 pmBWI - ONT
2 stops22h 00mFrontier
Mon 7/1512:49 amONT - BWI
1 stop16h 02mFrontier
Deal found 6/19$353
Thu 6/273:20 pmBWI - ONT
2 stops9h 18mFrontier
Fri 7/510:03 pmONT - BWI
1 stop15h 31mFrontier
Deal found 6/20$354
Thu 6/273:20 pmBWI - ONT
2 stops9h 18mFrontier
Fri 7/510:03 pmONT - BWI
1 stop15h 31mFrontier
Deal found 6/19$377
Thu 6/271:39 pmBWI - ONT
1 stop13h 05mFrontier
Wed 7/106:50 pmONT - BWI
1 stop11h 28mFrontier
Deal found 6/19$388
Thu 6/273:20 pmBWI - ONT
2 stops9h 18mFrontier
Wed 7/106:50 pmONT - BWI
1 stop11h 28mFrontier
Deal found 6/19$393

One-way flights to Ontario from Baltimore

Search for one-way flight options from Baltimore to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
Take a look at some of the one-way flights we've detected from Baltimore to Ontario. Those seeking round-trip flights from Baltimore to Ontario should utilize the search form at the the top of the page.
Tue 7/308:54 pmBWI - ONT
1 stop13h 23mFrontier
Deal found 6/20$85
Tue 7/308:54 pmBWI - ONT
1 stop13h 23mFrontier
Deal found 6/19$86
Tue 7/168:54 pmBWI - ONT
1 stop13h 23mFrontier
Deal found 6/20$88
Wed 8/211:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/19$90
Fri 9/61:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/20$91
Mon 7/157:11 pmBWI - ONT
2 stops16h 52mFrontier
Deal found 6/20$92
Sat 10/121:03 pmBWI - ONT
1 stop13h 41mFrontier
Deal found 6/19$93
Mon 9/169:41 pmBWI - ONT
1 stop11h 26mFrontier
Deal found 6/19$94
Wed 7/107:14 pmBWI - ONT
2 stops14h 49mFrontier
Deal found 6/19$95

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 3,256,981 searches. Data last updated June 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$171 - $396

Route

Depart

Return

Price

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Tue 7/16

1 stop13h 23m

Ontario

Thu 8/15

1 stop9h 02m

$171

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Sat 9/14

1 stop13h 41m

Ontario

Fri 9/20

1 stop8h 14m

$178

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Wed 8/21

1 stop11h 26m

Ontario

Sun 8/25

1 stop8h 14m

$180

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Sat 9/7

1 stop13h 41m

Ontario

Fri 9/13

1 stop8h 14m

$181

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Mon 9/2

1 stop26h 29m

Ontario

Sun 9/8

1 stop19h 53m

$183

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Wed 8/21

1 stop13h 36m

Ontario

Tue 8/27

1 stop9h 02m

$184

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Tue 8/6

1 stop7h 48m

Ontario

Wed 8/14

1 stop7h 55m

$306

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Tue 9/17

1 stop18h 12m

Ontario

Tue 9/24

1 stop10h 09m

$354

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Thu 7/18

1 stop7h 58m

Ontario

Tue 7/23

2 stops10h 43m

$396

Flights are sorted by cheapest first

Deals found on 6/19

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 June 14, 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 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

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 June 16, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
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. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Ontario by month

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

LAX

Temperature

57.2 - 73.4 °F

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 June 20, 2024.
See what other customers who have flown with Alaska Airlines, Frontier and Delta from Baltimore to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,296 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

8.1
Very good
9,296 reviews
8.1
Very good
9,296 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

8.0
Very good
10,000 reviews
8.1
Very good
9,296 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.4
Good
10,000 reviews
8.1
Very good
9,296 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.3
Good
10,000 reviews
8.1
Very good
9,296 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

6.2
Okay
3,932 reviews
8.1
Very good
9,296 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

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.
  • What airports do I use to fly from Baltimore to Ontario?

    You will need to book a flight from Baltimore/Washington to Ontario if you want to fly from Baltimore to Ontario. At least 5 different airlines have flights from Baltimore/Washington (BWI) to Ontario (ONT) on a regular basis. There is 1 flight to Ontario from the Baltimore airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BWI to ONT to be around 7h 20m.

  • 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 $171, but on average you can expect to pay $195.

  • Are there last-minute flights available from Baltimore to Ontario for under $400?

    There are currently 20+ open flights from Baltimore to Ontario within the next 7 days for less than $400.

  • What is the cheapest airline to fly from Baltimore to Ontario round-trip?

    Cheapflights users have booked flights from Baltimore to Ontario round-trip from $171. Frontier is priced at 55% lower than the current average price of a flight leaving 3 months from now.

  • 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 6/20.

  • What are the most popular airlines that fly from Baltimore to Ontario?

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

    Currently, October is the cheapest month in which you can book a flight from Baltimore to Ontario (average of $240). Flying from Baltimore to Ontario in July is currently the most expensive (average of $315). 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.

See more FAQs

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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.

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 3,256,981 searches. Data last updated June 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$122Average$172FlexibilityNo cancel feeOn-time65%
FrontierCheapest$155Average$259FlexibilityNo cancel feeOn-time62%
DeltaCheapest$214Average$427FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$294Average$569FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$540FlexibilityNo cancel feeOn-time71%

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.

Weekly flight availability from Baltimore to Ontario

Explore weekly flight availability from Baltimore to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 20, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights
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