HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

$82+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ONT
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Leverage Cheapflights for Your Next Trip

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.

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 Thursday 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 July 25, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$163
(mytrip.com)

One-way from

$82
(mytrip.com)
High demand for flights, 33% potential price rise
Search Deals
Best time to find cheap flights, 42% potential price drop
Search Deals
From Baltimore/Washington to Ontario
Search Deals
One-way flight from Baltimore/Washington to Ontario
Search Deals

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 84% 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 $346 per person but you can even find prices for as low as $107. The most expensive prices can be found in the month of December. Opting for a September flight can save you 28% 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 46% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Baltimore to Ontario flights in July & August 2024

Find cheap flight options from Baltimore to Ontario specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
The lowest fares we've come across on flights traveling from Baltimore to Ontario in July and August 2024. For more flight deals, be sure to check back very soon.
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/297:01 pmBWI - ONT
1 stop7h 58mFrontier
Mon 9/96:30 amONT - BWI
1 stop7h 18mFrontier
Deal found 7/24$161
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/297:01 pmBWI - ONT
1 stop7h 58mFrontier
Wed 9/113:21 pmONT - BWI
1 stop19h 20mFrontier
Deal found 7/24$164
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/157:01 pmBWI - ONT
1 stop7h 58mFrontier
Thu 8/226:00 amONT - BWI
1 stop9h 11mFrontier
Deal found 7/24$166
This Frontier deal was found by Cheapflights users on 7/25. 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.
Sat 8/241:18 pmBWI - ONT
1 stop13h 31mFrontier
Mon 8/266:00 amONT - BWI
1 stop7h 53mFrontier
Deal found 7/25$168
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/227:01 pmBWI - ONT
1 stop7h 58mFrontier
Mon 8/266:00 amONT - BWI
1 stop7h 53mFrontier
Deal found 7/24$169
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/171:18 pmBWI - ONT
1 stop13h 31mFrontier
Thu 8/226:00 amONT - BWI
1 stop9h 11mFrontier
Deal found 7/24$173
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/105:34 pmBWI - ONT
1 stop9h 27mFrontier
Thu 8/156:00 amONT - BWI
1 stop9h 11mFrontier
Deal found 7/24$228
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/69:59 pmBWI - ONT
1 stop23h 31mFrontier
Sat 8/107:59 pmONT - BWI
1 stop10h 19mFrontier
Deal found 7/24$230
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/157:01 pmBWI - ONT
1 stop7h 58mFrontier
Fri 8/166:00 amONT - BWI
1 stop7h 51mFrontier
Deal found 7/24$234

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 2,752,877 searches. Data last updated July 25, 2024.
The lowest fares we've come across on flights traveling from Baltimore to Ontario in July and August 2024. For more flight deals, be sure to check back very soon.
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/297:01 pmBWI - ONT
1 stop7h 58mFrontier
Mon 9/96:30 amONT - BWI
1 stop7h 18mFrontier
Deal found 7/24$161
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/74:00 pmBWI - ONT
1 stop9h 51mFrontier
Mon 9/96:30 amONT - BWI
1 stop7h 18mFrontier
Deal found 7/25$163
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/297:01 pmBWI - ONT
1 stop7h 58mFrontier
Wed 9/113:21 pmONT - BWI
1 stop19h 20mFrontier
Deal found 7/24$164
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/511:25 amBWI - ONT
1 stop12h 04mFrontier
Wed 9/116:30 amONT - BWI
1 stop28h 11mFrontier
Deal found 7/25$165
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/157:01 pmBWI - ONT
1 stop7h 58mFrontier
Thu 8/226:00 amONT - BWI
1 stop9h 11mFrontier
Deal found 7/24$166
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/511:25 amBWI - ONT
1 stop12h 04mFrontier
Mon 9/96:30 amONT - BWI
1 stop7h 18mFrontier
Deal found 7/25$167
This Frontier deal was found by Cheapflights users on 7/25. 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.
Sat 8/241:18 pmBWI - ONT
1 stop13h 31mFrontier
Mon 8/266:00 amONT - BWI
1 stop7h 53mFrontier
Deal found 7/25$168
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/227:01 pmBWI - ONT
1 stop7h 58mFrontier
Mon 8/266:00 amONT - BWI
1 stop7h 53mFrontier
Deal found 7/24$169
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/171:18 pmBWI - ONT
1 stop13h 31mFrontier
Thu 8/226:00 amONT - BWI
1 stop9h 11mFrontier
Deal found 7/24$173

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 2,752,877 searches. Data last updated July 25, 2024.
Book one of these great deals on flights from Baltimore to Ontario. Tip: verify your flight details before completing your reservation.
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Sat 8/107:59 pmONT - BWI
1 stop10h 19mFrontier
Deal found 7/24$254
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Sat 8/107:59 pmONT - BWI
1 stop10h 19mFrontier
Deal found 7/24$257
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Thu 8/156:00 amONT - BWI
1 stop9h 11mFrontier
Deal found 7/24$260
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Wed 8/76:05 amONT - BWI
1 stop28h 11mFrontier
Deal found 7/24$266
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Sat 8/107:59 pmONT - BWI
1 stop10h 19mFrontier
Deal found 7/24$278
This Frontier deal was found by Cheapflights users on 7/25. 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.
Tue 7/308:54 pmBWI - ONT
1 stop13h 23mFrontier
Tue 8/66:05 amONT - BWI
1 stop11h 54mFrontier
Deal found 7/25$284
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/308:54 pmBWI - ONT
1 stop13h 23mFrontier
Tue 8/66:05 amONT - BWI
1 stop11h 54mFrontier
Deal found 7/24$285
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Mon 8/57:39 pmONT - BWI
1 stop22h 20mFrontier
Deal found 7/24$288
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/35:34 pmBWI - ONT
1 stop9h 25mFrontier
Wed 8/76:05 amONT - BWI
1 stop28h 11mFrontier
Deal found 7/25$293

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 2,752,877 searches. Data last updated July 25, 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.
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/284:00 pmBWI - ONT
1 stop9h 51mFrontier
Deal found 7/25$82
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/157:01 pmBWI - ONT
1 stop7h 58mFrontier
Deal found 7/25$84
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/241:18 pmBWI - ONT
1 stop13h 31mFrontier
Deal found 7/25$86
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/231:03 pmBWI - ONT
1 stop9h 34mFrontier
Deal found 7/25$87
This Frontier deal was found by Cheapflights users on 7/25. 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 9/511:25 amBWI - ONT
1 stop12h 04mFrontier
Deal found 7/25$90
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/261:03 pmBWI - ONT
1 stop13h 41mFrontier
Deal found 7/25$92
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/21:03 pmBWI - ONT
1 stop13h 41mFrontier
Deal found 7/25$95
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/17:01 pmBWI - ONT
1 stop7h 58mFrontier
Deal found 7/25$101
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/17:01 pmBWI - ONT
1 stop7h 58mFrontier
Deal found 7/25$104

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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$163 - $386

Route

Depart

Return

Price

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Sat 9/7

1 stop9h 51m

Ontario

Mon 9/9

1 stop7h 18m

$163

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Thu 9/5

1 stop12h 04m

Ontario

Wed 9/11

1 stop28h 11m

$165

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Sat 8/17

1 stop13h 31m

Ontario

Mon 8/26

1 stop7h 53m

$166

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Thu 9/5

1 stop12h 04m

Ontario

Mon 9/9

1 stop7h 18m

$167

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Fri 9/6

1 stop10h 17m

Ontario

Tue 9/10

1 stop7h 44m

$286

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Tue 9/10

1 stop7h 23m

Ontario

Tue 9/24

1 stop7h 07m

$296

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Mon 10/14

1 stop14h 25m

Ontario

Tue 10/15

1 stop12h 15m

$379

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Wed 9/4

1 stop11h 25m

Ontario

Tue 9/10

1 stop10h 10m

$382

Baltimore/WashingtonOntario

BWI - ONT

BWIONT

Baltimore/Washington

Sat 8/24

1 stop7h 52m

Ontario

Sat 8/31

1 stop6h 49m

$386

Flights are sorted by cheapest first

Deals found on 7/25

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 July 23, 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 July 21, 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. 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 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 July 25, 2024.
See what other customers who have flown with Delta, Frontier and United 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
8.2
Very good
5,641 reviews

Comfort

8.1

Food

7.3

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,641 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Food

7.3

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Alaska Airlines
8.1
Very good
9,365 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Food

7.3

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very good
9,630 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Food

7.3

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Food

7.3

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

American Airlines
7.3
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Food

7.3

Entertainment

7.8

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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 07m.

  • 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 $163, but on average you can expect to pay $190.

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

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

  • 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 $163. Frontier is priced at 58% 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 $82. American Airlines flights start at $144 while deals on Alaska Airlines start at $149 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 7/25.

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

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying 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 $237). Flying from Baltimore to Ontario in July is currently the most expensive (average of $293). 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

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.

Alternative routes for Baltimore to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

Baltimore to Las Vegas flights
Philadelphia to Las Vegas flights
Reagan-National to Los Angeles flights
Baltimore to Los Angeles flights
Dulles Intl to Las Vegas flights
Reagan-National to Las Vegas flights
Philadelphia to Los Angeles flights
Reagan-National to San Francisco flights
Dulles Intl to San Francisco flights
Baltimore to San Francisco flights
Dulles Intl to San Diego flights
Dulles Intl to Los Angeles flights
Baltimore to Burbank flights
Baltimore to San Diego flights
Philadelphia to San Francisco flights
Baltimore to Santa Ana flights
Reagan-National to San Diego flights
Reagan-National to Ontario flights
Baltimore to Oakland flights
Dulles Intl to Ontario flights
Philadelphia to Ontario flights
Philadelphia to Burbank flights
Philadelphia to San Diego flights
Philadelphia to Santa Ana flights
Philadelphia to Oakland flights
Reagan-National to San Jose flights
Dulles Intl to San Jose flights
Baltimore to San Jose flights
Dulles Intl to Santa Ana flights
Reagan-National to Sacramento flights
Dulles Intl to Sacramento flights
Dulles Intl to Reno flights
Dulles Intl to Oakland flights
Reagan-National to Santa Ana flights
Dulles Intl to Burbank flights
Baltimore to Reno flights
Reagan-National to Oakland flights
Reagan-National to Reno flights
Dulles Intl to Palm Springs flights
Philadelphia to San Jose flights
Baltimore to Sacramento flights
Reagan-National to Palm Springs flights
Philadelphia to Sacramento flights
Dulles Intl to Long Beach flights
Philadelphia to Reno flights
Baltimore to Palm Springs flights
Reagan-National to Burbank flights
Dulles Intl to Monterey flights
Philadelphia to Fresno flights

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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$122Average$172FlexibilityNo cancel feeOn-time65%
FrontierCheapest$149Average$258FlexibilityNo cancel feeOn-time62%
DeltaCheapest$226Average$418FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$296Average$517FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$504FlexibilityNo cancel feeOn-time71%
Philadelphia to Miami flights
San Francisco to Dallas flights
Fort Lauderdale to Key West flights
Dallas to New York flights
Tampa to Seattle flights
San Diego to Los Angeles flights
San Francisco to Rome flights
Detroit to Las Vegas flights
Phoenix to San Diego flights
New York to Hawaii flights
Atlanta to Toronto flights
Baltimore to Coolangatta flights

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.
First Class
Business Class
Prem Econ Class
Economy 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 July 25, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Abha
Flights to Komatsu
Flights to Skardu
Flights to Laayoune Hassan I
Flights to Aqaba King Hussein Intl
Flights to Nampula
Flights to Bourgas
Flights to Riverton
Flights to Alpena Phelps/Collins
Flights to Palmas
Flights to Newport State
Flights to Antofagasta Cerro Moreno
Flights to Nuku‘alofa Fua'Amotu Intl
Flights to Ndola
Flights to Fort Dodge
Flights to Miri
Flights to Rhinelander Oneida County
Flights to Seattle Lake Union Spb
Flights to Portsmouth Pease Intl
Flights to Tumbes
Flights to Jigiga
Flights to Diyarbakir
Flights to Akureyri
Flights to Brainerd Crow Wing County
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines