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Cheap flights from Ontario to Baltimore (ONT - BWI) from $90

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 8/15. 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.
ONT — BWI
jun. 11 — jun. 181
From?
To?
mar. 6/11
mar. 6/18
1 adult, Economy
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The best prices from Ontario to Baltimore/Washington are usually found in September or February, booked 65 days in advance, depart on a Saturday or Friday and return on a Wednesday

Cheap flight deals from Ontario to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Baltimore (BWI). 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 junio 6, 2024.

Popular in

June

Cheapest in

September

Round-trip from

$234

One-way from

$90
High demand for flights, 31% potential price rise
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Best time to find cheap flights, 35% potential price drop
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From Ontario to Baltimore/Washington
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One-way flight from Ontario to Baltimore/Washington
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What is the cheapest day to fly round-trip from Ontario to Baltimore?

Sunday flights are found to be more expensive to fly from Ontario to Baltimore. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Baltimore.

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

To save on the cost of your flight from Ontario to Baltimore, book at least 29 days before your planned departure. Booking around this time can save you about 61% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $376 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $591.

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

Flights from Ontario to Baltimore lean towards being more expensive in June. Prices are generally better when you fly from Ontario to Baltimore in September, with the cheapest ticket starting at $109.

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

One of the essential ways to save on airfare from Ontario to Baltimore is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 35% on airfare.

Cheap Ontario to Baltimore flights in June & July 2024

Find cheap flight options from Ontario to Baltimore specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on junio 6, 2024.
These are some of the best deals we've found on flights to Baltimore in 2024 at this time. More deals are always being added, so be sure to check back regularly.
sáb. 7/67:59 pmONT - BWI
1 stop10h 19mFrontier
vie. 8/161:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/5$202
mié. 7/312:49 amONT - BWI
1 stop8h 50mFrontier
vie. 8/161:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/5$209
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
mar. 7/28:48 pmBWI - ONT
1 stop13h 24mFrontier
Deal found 6/6$213
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
sáb. 7/135:34 pmBWI - ONT
1 stop9h 22mFrontier
Deal found 6/6$215
sáb. 7/67:59 pmONT - BWI
1 stop10h 19mFrontier
mar. 7/238:54 pmBWI - ONT
1 stop13h 23mFrontier
Deal found 6/5$217
sáb. 7/137:59 pmONT - BWI
1 stop10h 19mFrontier
mar. 7/168:54 pmBWI - ONT
1 stop13h 23mFrontier
Deal found 6/6$219
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
mar. 7/238:54 pmBWI - ONT
1 stop13h 23mFrontier
Deal found 6/5$220
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
lun. 7/89:31 pmBWI - ONT
1 stop13h 58mFrontier
Deal found 6/6$221
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
jue. 7/41:39 pmBWI - ONT
1 stop13h 05mFrontier
Deal found 6/5$222

Ontario to Baltimore 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Baltimore in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
These are some of the best deals we've found on flights to Baltimore in 2024 at this time. More deals are always being added, so be sure to check back regularly.
mar. 8/131:32 pmONT - BWI
1 stop19h 31mFrontier
mié. 8/211:03 pmBWI - ONT
1 stop13h 36mFrontier
Deal found 6/5$177
jue. 9/1912:49 amONT - BWI
1 stop8h 14mFrontier
mié. 9/251:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/6$179
vie. 9/208:27 pmONT - BWI
1 stop12h 36mFrontier
mié. 9/251:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/6$180
dom. 8/181:10 pmONT - BWI
1 stop19h 53mFrontier
mié. 8/211:03 pmBWI - ONT
1 stop13h 36mFrontier
Deal found 6/5$181
jue. 8/226:57 amONT - BWI
1 stop9h 02mFrontier
mié. 9/49:41 pmBWI - ONT
1 stop11h 26mFrontier
Deal found 6/5$182
dom. 8/181:10 pmONT - BWI
1 stop19h 53mFrontier
lun. 8/199:41 pmBWI - ONT
1 stop11h 26mFrontier
Deal found 6/6$183
jue. 9/266:57 amONT - BWI
1 stop9h 02mFrontier
mié. 10/21:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 6/5$184
vie. 8/238:27 pmONT - BWI
1 stop12h 36mFrontier
mié. 9/49:41 pmBWI - ONT
1 stop11h 26mFrontier
Deal found 6/5$187
mar. 8/276:57 amONT - BWI
1 stop9h 02mFrontier
vie. 8/301:03 pmBWI - ONT
1 stop13h 36mFrontier
Deal found 6/5$188

Ontario to Baltimore flights leaving soon

Find last-minute flight options from Ontario to Baltimore 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 3,050,429 searches. Data last updated junio 6, 2024.
Check out these flights departing soon from Ontario to Baltimore. It's wise to confirm all flight details are correct before booking.
mié. 6/128:02 pmONT - BWI
1 stop10h 06mFrontier
jue. 6/203:20 pmBWI - ONT
2 stops9h 18mFrontier
Deal found 6/4$245
mié. 6/128:03 amONT - BWI
1 stop25h 36mFrontier
mié. 6/197:09 pmBWI - ONT
2 stops14h 54mFrontier
Deal found 6/5$248
vie. 6/1410:23 pmONT - BWI
1 stop15h 12mFrontier
jue. 6/203:20 pmBWI - ONT
2 stops9h 18mFrontier
Deal found 6/4$253
vie. 6/1410:23 pmONT - BWI
1 stop15h 12mFrontier
mar. 6/258:48 pmBWI - ONT
1 stop13h 14mFrontier
Deal found 6/5$267
mié. 6/128:03 amONT - BWI
1 stop25h 36mFrontier
mié. 6/267:09 pmBWI - ONT
2 stops18h 47mFrontier
Deal found 6/4$270
vie. 6/1410:23 pmONT - BWI
1 stop15h 12mFrontier
sáb. 6/225:37 pmBWI - ONT
1 stop9h 22mFrontier
Deal found 6/5$271
sáb. 6/1512:49 amONT - BWI
1 stop14h 07mFrontier
jue. 6/203:20 pmBWI - ONT
2 stops9h 18mFrontier
Deal found 6/6$277
vie. 6/1410:23 pmONT - BWI
1 stop15h 12mFrontier
mar. 6/188:48 pmBWI - ONT
1 stop13h 14mFrontier
Deal found 6/4$279
vie. 6/1410:23 pmONT - BWI
1 stop15h 12mFrontier
mié. 6/197:09 pmBWI - ONT
2 stops14h 54mFrontier
Deal found 6/4$283

One-way flights to Baltimore from Ontario

Search for one-way flight options from Ontario to Baltimore. 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 3,050,429 searches. Data last updated junio 6, 2024.
Take a look at some of the one-way flights we've detected from Ontario to Baltimore. Those seeking round-trip flights from Ontario to Baltimore should utilize the search form at the the top of the page.
jue. 8/1512:49 amONT - BWI
1 stop8h 14mFrontier
Deal found 6/5$90
jue. 9/56:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/5$94
mar. 9/176:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/5$96
dom. 9/226:57 amONT - BWI
1 stop9h 02mFrontier
Deal found 6/5$98
mar. 8/201:32 pmONT - BWI
1 stop19h 31mFrontier
Deal found 6/5$100
mar. 9/31:32 pmONT - BWI
1 stop19h 31mFrontier
Deal found 6/5$101
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
Deal found 6/6$103
vie. 8/27:07 pmONT - BWI
1 stop11h 56mFrontier
Deal found 6/6$109
sáb. 6/299:02 pmONT - BWI
1 stop9h 06mFrontier
Deal found 6/5$110

Find flights from Ontario to Baltimore within your budget

Customize your flight search to find flights from Ontario to Baltimore 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 3,050,429 searches. Data last updated junio 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$177 - $188

Route

Depart

Return

Price

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

mar. 8/13

1 stop19h 31m

Baltimore/Washington

mié. 8/21

1 stop13h 36m

$177

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

jue. 9/19

1 stop8h 14m

Baltimore/Washington

mié. 9/25

1 stop9h 34m

$179

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

vie. 9/20

1 stop12h 36m

Baltimore/Washington

mié. 9/25

1 stop9h 34m

$180

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

dom. 8/18

1 stop19h 53m

Baltimore/Washington

mié. 8/21

1 stop13h 36m

$181

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

jue. 8/22

1 stop9h 02m

Baltimore/Washington

mié. 9/4

1 stop11h 26m

$182

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

dom. 8/18

1 stop19h 53m

Baltimore/Washington

lun. 8/19

1 stop11h 26m

$183

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

jue. 9/26

1 stop9h 02m

Baltimore/Washington

mié. 10/2

1 stop9h 34m

$184

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

vie. 8/23

1 stop12h 36m

Baltimore/Washington

mié. 9/4

1 stop11h 26m

$187

OntarioBaltimore/Washington

ONT - BWI

ONTBWI

Ontario

mar. 8/27

1 stop9h 02m

Baltimore/Washington

vie. 8/30

1 stop13h 36m

$188

Flights are sorted by cheapest first

Deals found on 6/5

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Baltimore. Price data was last updated on May 31, 2024.
The best time to book flights from Ontario to Baltimore is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Baltimore. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Baltimore flight should consider departing on Wednesday afternoons 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.
Search Deals

Best time to book a flight from Ontario to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Ontario 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 Baltimore by month

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

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Baltimore, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated junio 6, 2024.
See what other customers who have flown with Frontier, Alaska Airlines and American Airlines from Ontario to Baltimore have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,918 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.3

Entertainment

7.8

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
5,918 reviews
Southwest
8.2
Very good
5,918 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.3

Entertainment

7.8

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.1
Very good
9,222 reviews
Southwest
8.2
Very good
5,918 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.3

Entertainment

7.8

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
10,368 reviews
Southwest
8.2
Very good
5,918 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.3

Entertainment

7.8

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
10,696 reviews
Southwest
8.2
Very good
5,918 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.3

Entertainment

7.8

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.3
Good
14,227 reviews
Southwest
8.2
Very good
5,918 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.3

Entertainment

7.8

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Baltimore. 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 Ontario to Baltimore for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to Baltimore for under $200. The cheapest flight booked recently is on Frontier for just $177, but on average you can expect to pay $197.

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

    There are currently 20+ open flights from Ontario to Baltimore within the next 7 days for less than $300.

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

    Our cheapest airline available from Ontario to Baltimore is Frontier. Our recent data shows that you can find tickets from as low as $177 on this airline. This flight start at 59% lower than the current average price 3 months from now.

  • What does ONT to BWI mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ontario Airport to Baltimore/Washington Airport flight would often be abbreviated as a ONT to BWI flight.

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

    The amount of baggage you can bring on your Ontario to Baltimore 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 Ontario to Baltimore with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Baltimore 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 Ontario to Baltimore that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Baltimore 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 Ontario to Baltimore that allow pets onboard?

    Many airlines flying from Ontario to Baltimore 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 Ontario to Baltimore?

    Yes, you can often find last-minute deals on Ontario to Baltimore 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 Ontario to Baltimore flight deals updated?

    The Ontario to Baltimore flight deals you see on this page were last updated on 6/6.

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

    American Airlines, Delta and Frontier are the most popular airlines when flying from Ontario to Baltimore.

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

    Currently, December is the cheapest month in which you can book a flight from Ontario to Baltimore (average of $238). Flying from Ontario to Baltimore in July 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.

See more FAQs

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Top 5 airlines flying from Ontario to Baltimore

Discover the top 5 airlines that operate flights from Ontario to Baltimore. 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 3,050,429 searches. Data last updated junio 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$122Average$229FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$290FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$295Average$680FlexibilityNo cancel feeOn-time69%
DeltaCheapest$316Average$500FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$336Average$542FlexibilityNo cancel feeOn-time71%
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Search flights from Ontario to Baltimore by cabin class

Find flights from Ontario to Baltimore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Weekly flight availability from Ontario to Baltimore

Explore weekly flight availability from Ontario to Baltimore. 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 junio 6, 2024.
Sunday2daily flights
Monday0daily flights
Tuesday0daily flights
Wednesday0daily flights
Thursday0daily flights
Friday0daily flights
Saturday1daily flight

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