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$90+ Cheap flights from Baltimore (BWI) to Ontario

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
nov. 21 — nov. 281
vie. 11/21
vie. 11/28
1 adult, Economy
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Cheap flight deals from Baltimore to Ontario

Keep the following information in mind while searching for Baltimore to Ontario flight deals. Data was last updated octubre 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$201
(Mytrip)

One-way from

$90
(Trip.com)

Popular in

October

Cheapest in

June

Average price

$319
Provider with most accurate pricing for Washington, D.C. (WAS)-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Toronto (YTO) flights.
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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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Highest demand for flights based on searches. 4% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 octubre 22, 2025.

This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/510:40 amBWI - YYZ
1 stop9h 20mMultiple Airlines
vie. 12/1212:50 pmYYZ - BWI
1 stop11h 37mMultiple Airlines
Deal found 10/21$201
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/510:40 amBWI - YOW
1 stop13h 18mMultiple Airlines
dom. 12/77:00 amYOW - BWI
3 stops25h 29mMultiple Airlines
Deal found 10/21$225
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/287:30 amBWI - YYZ
1 stop12h 30mMultiple Airlines
vie. 12/58:20 pmYYZ - BWI
1 stop11h 22mMultiple Airlines
Deal found 10/20$228
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/49:34 amBWI - YYZ
2 stops34h 26mMultiple Airlines
mié. 12/105:15 pmYYZ - BWI
1 stop15h 14mMultiple Airlines
Deal found 10/20$231
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/118:20 amBWI - YOW
1 stop16h 05mMultiple Airlines
dom. 12/147:00 amYOW - BWI
3 stops25h 29mMultiple Airlines
Deal found 10/21$238
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/194:52 pmBWI - YYZ
1 stop7h 19mMultiple Airlines
mar. 11/257:15 amYYZ - BWI
1 stop8h 05mMultiple Airlines
Deal found 10/20$246
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2812:57 pmBWI - YYZ
1 stop7h 03mMultiple Airlines
lun. 12/19:35 amYYZ - BWI
1 stop24h 33mMultiple Airlines
Deal found 10/20$249
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:23 pmBWI - YYZ
1 stop17h 20mMultiple Airlines
lun. 12/85:15 pmYYZ - BWI
1 stop15h 14mMultiple Airlines
Deal found 10/20$251
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1711:29 amBWI - YYZ
1 stop8h 31mMultiple Airlines
jue. 11/207:00 amYYZ - BWI
1 stop10h 43mMultiple Airlines
Deal found 10/20$253
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/49:34 amBWI - YYZ
2 stops34h 26mMultiple Airlines
jue. 12/115:15 pmYYZ - BWI
1 stop15h 14mMultiple Airlines
Deal found 10/20$254
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:23 pmBWI - YOW
1 stop30h 02mMultiple Airlines
jue. 12/119:30 amYOW - BWI
1 stop14h 57mMultiple Airlines
Deal found 10/20$281
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2812:57 pmBWI - YOW
1 stop11h 01mMultiple Airlines
mar. 12/99:30 amYOW - BWI
1 stop22h 59mMultiple Airlines
Deal found 10/21$293

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 22, 2025.
Use the filters below to find and compare flights from Baltimore to Ontario that are best for you.

Fly from

Baltimore

Fly to

Ontario

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

jue. 12/11

8:20 am-12:25 am

1 stop16h 05m

Ottawa

dom. 12/14

7:00 am-8:29 am

3 stops25h 29m

$238

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

vie. 12/5

6:23 pm-12:25 am

1 stop30h 02m

Ottawa

vie. 12/12

4:20 pm-12:27 am

1 stop8h 07m

$294

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

lun. 1/19

5:10 am-10:12 pm

1 stop17h 02m

Toronto Pearson Intl

vie. 1/23

7:10 am-8:32 pm

1 stop13h 22m

$307

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

lun. 12/1

8:45 pm-5:13 pm

1 stop20h 28m

Ottawa

mar. 12/9

9:30 am-8:29 am

1 stop22h 59m

$312

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

mié. 12/24

11:55 am-5:13 pm

2 stops29h 18m

Ottawa

lun. 12/29

4:20 pm-7:22 am

1 stop15h 02m

$323

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

vie. 2/20

2:30 pm-12:25 am

1 stop9h 55m

Ottawa

dom. 2/22

7:00 am-8:50 am

3 stops25h 50m

$324

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

lun. 12/1

11:13 am-12:25 am

1 stop13h 12m

Ottawa

mar. 12/2

4:15 pm-10:08 am

1 stop17h 53m

$332

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

mié. 12/3

7:30 am-10:20 pm

2 stops14h 50m

Montreal Pierre Elliott Trudeau Intl

mié. 12/10

9:50 am-9:35 am

3 stops23h 45m

$344

BaltimoreToronto

BWI - YTZ

BWIYTZ

Baltimore/Washington

dom. 12/7

9:13 am-6:57 pm

1 stop9h 44m

Toronto Island

lun. 12/8

9:15 am-9:37 pm

1 stop12h 22m

$347

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

mié. 11/26

10:41 am-12:11 am

1 stop13h 30m

Toronto Pearson Intl

mié. 12/3

5:15 pm-7:42 am

1 stop14h 27m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 60 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Ontario

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

Currently, March is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of $91). Flying from Baltimore to Region of Ontario in August is currently the most expensive (average of $171). 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 ON?

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 octubre 22, 2025.

One of the essential ways to save on airfare from Baltimore to Region of Ontario is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 64% on airfare.

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 octubre 22, 2025.
Read reviews from past customers who have flown Porter Airlines, Delta, and United Airlines from Baltimore to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
382 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
382 reviews
Porter Airlines
8.0
Very good
382 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Delta
7.9
Good
7,979 reviews
Porter Airlines
8.0
Very good
382 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,988 reviews
Porter Airlines
8.0
Very good
382 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,132 reviews
Porter Airlines
8.0
Very good
382 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,335 reviews
Porter Airlines
8.0
Very good
382 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 airport do you fly from for flights from Baltimore to Ontario?

    Baltimore/Washington (BWI) is the airport you will fly out of if you book a flight from Baltimore to Ontario. It is only a 8.5 mi journey to Baltimore/Washington (BWI) from Baltimore’s city center.

  • How long is the flight from Baltimore to Region of Ontario?

    Departing from Baltimore to Region of Ontario will take you 12h 09m. There are 893 mi between Baltimore and Region of Ontario.

  • What are the most popular routes from Baltimore to Region of Ontario?

    Most travelers choose Baltimore/Washington - Toronto Pearson Intl, Baltimore/Washington - Montreal Pierre Elliott Trudeau Intl or Baltimore/Washington - Toronto Island when deciding on the best route from Baltimore to Region of Ontario.

  • What are the cheapest flights from Baltimore to Region of Ontario?

    On average you can expect to pay $1,406 for a flight from Baltimore to Region of Ontario. The cheapest flight overall is $872 while the most popular route, (Baltimore/Washington - Toronto Pearson Intl) is currently priced at $225.

  • 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.

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

    Currently, March is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of $91). Flying from Baltimore to Region of Ontario in August is currently the most expensive (average of $171). 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.
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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 2,558,603 searches. Data last updated octubre 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$108Average$258FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$187Average$323FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$212Average$285FlexibilityNo cancel feeOn-time67%
DeltaCheapest$255Average$319FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$349Average$498FlexibilityNo cancel feeOn-time60%

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