HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$82+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Ontario with Cheapflights

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.

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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$228
(Kiwi.com)

One-way from

$82
(Kiwi.com)

Popular in

November

Cheapest in

June

Average price

$290
Provider with most accurate pricing for Washington, D.C. (WAS)-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Toronto (YTO) flights.
Search Deals
From Baltimore/Washington to Ontario
Search Deals
One-way flight from Baltimore/Washington to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Wed 1/281:00 pmBWI - YYZ
1 stop10h 20mMultiple Airlines
Mon 2/25:15 pmYYZ - BWI
1 stop23h 55mMultiple Airlines
Deal found 1/8$224
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 2/1910:06 amBWI - YYZ
1 stop9h 49mMultiple Airlines
Mon 2/237:10 amYYZ - BWI
1 stop28h 07mMultiple Airlines
Deal found 1/7$228
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Wed 2/41:00 pmBWI - YYZ
1 stop10h 20mMultiple Airlines
Mon 2/95:15 pmYYZ - BWI
1 stop25h 44mMultiple Airlines
Deal found 1/7$234
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 2/1910:06 amBWI - YYZ
1 stop9h 49mMultiple Airlines
Tue 2/247:10 amYYZ - BWI
1 stop11h 49mMultiple Airlines
Deal found 1/7$237
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 2/512:05 pmBWI - YTZ
1 stop25h 42mMultiple Airlines
Thu 2/129:20 amYTZ - BWI
1 stop9h 04mMultiple Airlines
Deal found 1/7$237
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Thu 2/1910:06 amBWI - YYZ
1 stop9h 49mMultiple Airlines
Sun 2/228:00 pmYYZ - BWI
1 stop24h 19mMultiple Airlines
Deal found 1/6$242
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Thu 2/51:00 pmBWI - YYZ
1 stop10h 20mMultiple Airlines
Mon 2/910:15 amYYZ - BWI
1 stop7h 46mMultiple Airlines
Deal found 1/7$243
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Sat 1/314:44 pmBWI - YYZ
1 stop7h 27mMultiple Airlines
Mon 2/25:15 pmYYZ - BWI
1 stop23h 55mMultiple Airlines
Deal found 1/6$246
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Thu 1/291:22 pmBWI - YYZ
1 stop10h 49mMultiple Airlines
Sat 1/317:15 amYYZ - BWI
2 stops11h 35mMultiple Airlines
Deal found 1/6$247
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Tue 2/38:00 amBWI - YYZ
1 stop30h 16mMultiple Airlines
Mon 2/95:15 pmYYZ - BWI
1 stop25h 44mMultiple Airlines
Deal found 1/8$248
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Sun 2/19:55 pmBWI - YYZ
1 stop13h 31mMultiple Airlines
Wed 2/45:15 pmYYZ - BWI
1 stop19h 12mMultiple Airlines
Deal found 1/6$251
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Thu 2/51:00 pmBWI - YUL
1 stop27h 22mMultiple Airlines
Thu 2/126:45 amYUL - BWI
2 stops11h 39mMultiple Airlines
Deal found 1/8$264

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 January 8, 2026.
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

BaltimoreToronto

BWI - YTZ

BWIYTZ

Baltimore/Washington

Thu 2/5

12:05 pm-1:47 pm

1 stop25h 42m

Toronto Island

Thu 2/12

9:20 am-6:24 pm

1 stop9h 04m

$237

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Wed 2/4

1:00 pm-11:20 pm

1 stop10h 20m

Toronto Pearson Intl

Mon 2/9

5:15 pm-6:59 pm

1 stop25h 44m

$246

BaltimoreToronto

BWI - YTZ

BWIYTZ

Baltimore/Washington

Thu 2/19

7:19 pm-1:47 pm

1 stop18h 28m

Toronto Island

Mon 2/23

7:40 pm-5:13 pm

2 stops21h 33m

$266

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Wed 2/4

1:00 pm-11:20 pm

1 stop10h 20m

Toronto Pearson Intl

Sat 2/7

8:20 pm-10:29 am

2 stops14h 09m

$268

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sat 2/28

4:45 pm-12:14 am

1 stop7h 29m

Toronto Pearson Intl

Sun 3/1

8:30 pm-8:41 am

1 stop12h 11m

$282

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sun 2/1

9:55 pm-11:26 am

1 stop13h 31m

Toronto Pearson Intl

Wed 2/4

5:15 pm-10:26 am

2 stops17h 11m

$284

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 2/6

4:44 pm-11:58 pm

1 stop7h 14m

Ottawa

Mon 2/9

4:20 pm-6:59 pm

1 stop26h 39m

$287

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 1/27

8:00 am-5:13 pm

1 stop9h 13m

Ottawa

Fri 1/30

4:15 pm-8:31 am

1 stop16h 16m

$288

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sun 2/1

5:47 pm-2:53 pm

1 stop21h 06m

Toronto Pearson Intl

Sun 2/8

8:30 pm-8:31 am

1 stop12h 01m

$289

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 1/22

7:58 pm-5:15 pm

2 stops45h 17m

Ottawa

Wed 1/28

9:30 am-5:10 pm

1 stop7h 40m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 60 results
1
2
3
...
6

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 $94). Flying from Baltimore to Region of Ontario in January is currently the most expensive (average of $187). 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.

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 January 8, 2026.
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
406 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
406 reviews
Porter Airlines
8.0
Very good
406 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Delta
7.9
Good
8,029 reviews
Porter Airlines
8.0
Very good
406 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,141 reviews
Porter Airlines
8.0
Very good
406 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,235 reviews
Porter Airlines
8.0
Very good
406 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,603 reviews
Porter Airlines
8.0
Very good
406 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 16h 54m. 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 - Ottawa when deciding on the best route from Baltimore to Region of Ontario.

  • 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 $94). Flying from Baltimore to Region of Ontario in January is currently the most expensive (average of $187). 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.
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pearson Intl flights
Reagan-National to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Vancouver Intl flights
Baltimore to Vancouver Intl flights
Dulles Intl to Toronto Island flights
Reagan-National to Vancouver Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Baltimore to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Dulles Intl to Calgary flights
Baltimore to Calgary flights
Reagan-National to Toronto Island flights
Reagan-National to Calgary flights
Philadelphia to Vancouver Intl flights
Philadelphia to Calgary flights
Dulles Intl to Ottawa flights
Reagan-National to Ottawa flights
Dulles Intl to Abbotsford flights
Philadelphia to Toronto Island flights
Dulles Intl to Québec City flights
Baltimore to Abbotsford flights
Philadelphia to Halifax flights
Philadelphia to Québec City flights
Baltimore to Québec City flights
Reagan-National to Québec City flights
Dulles Intl to St. John's flights
Dulles Intl to Halifax flights
Baltimore to Ottawa flights
Reagan-National to St. John's flights
Reagan-National to Abbotsford flights
Dulles Intl to Edmonton flights
Dulles Intl to Winnipeg flights
Dulles Intl to Charlottetown flights
Reagan-National to Halifax flights
Reagan-National to Winnipeg flights
Reagan-National to Charlottetown flights
Baltimore to Halifax flights
Baltimore to Edmonton flights
Baltimore to Toronto Island flights
Baltimore to Yellowknife flights
Philadelphia to Kelowna flights
Baltimore to Winnipeg flights
Reagan-National to Edmonton flights
Baltimore to St. John's flights
Dulles Intl to Kelowna flights
Reagan-National to Kelowna flights
Dulles Intl to Victoria flights

Top 4 airlines flying from Baltimore to Ontario

Discover the top 4 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$187Average$275FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$187Average$315FlexibilityNo cancel feeOn-time69%
DeltaCheapest$255Average$329FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$349Average$492FlexibilityNo cancel feeOn-time60%

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.