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$138+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
Jun 14 — Jun 211
Sun 6/14
Sun 6/21
1 adult, Economy
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Cheap 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 May 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/109:30 pm
BWI
-
YYZ
1 stop19h 15m
Multiple Airlines
Mon 6/159:30 am
YYZ
-
BWI
1 stop26h 43m
Multiple Airlines
Deal found 5/11$360
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Mon 6/89:23 pm
BWI
-
YYZ
2 stops16h 42m
Multiple Airlines
Mon 6/151:30 pm
YYZ
-
BWI
1 stop22h 43m
Multiple Airlines
Deal found 5/11$375
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Mon 7/131:10 pm
BWI
-
YYZ
1 stop7h 45m
Multiple Airlines
Thu 7/169:30 am
YYZ
-
BWI
1 stop26h 45m
Multiple Airlines
Deal found 5/13$388
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Mon 7/131:10 pm
BWI
-
YYZ
1 stop7h 45m
Multiple Airlines
Fri 7/179:50 am
YYZ
-
BWI
1 stop23h 14m
Multiple Airlines
Deal found 5/13$396
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/101:10 pm
BWI
-
YYZ
1 stop24h 55m
Multiple Airlines
Wed 6/179:30 am
YYZ
-
BWI
2 stops22h 05m
Multiple Airlines
Deal found 5/13$405
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 7/285:33 pm
BWI
-
YYZ
1 stop26h 32m
Multiple Airlines
Sun 8/24:45 pm
YYZ
-
BWI
2 stops19h 30m
Multiple Airlines
Deal found 5/10$406
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 8/69:28 pm
BWI
-
YYZ
2 stops19h 41m
Multiple Airlines
Wed 8/129:50 am
YYZ
-
BWI
1 stop10h 43m
Multiple Airlines
Deal found 5/12$407
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 8/117:27 pm
BWI
-
YYZ
1 stop24h 38m
Multiple Airlines
Wed 8/265:50 pm
YYZ
-
BWI
2 stops13h 55m
Multiple Airlines
Deal found 5/12$411
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Mon 7/201:10 pm
BWI
-
YYZ
1 stop24h 55m
Multiple Airlines
Fri 7/241:30 pm
YYZ
-
BWI
1 stop22h 45m
Multiple Airlines
Deal found 5/12$415
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Fri 6/197:27 pm
BWI
-
YYZ
2 stops18h 38m
Multiple Airlines
Fri 7/179:50 am
YYZ
-
BWI
1 stop23h 14m
Multiple Airlines
Deal found 5/13$416
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Mon 6/89:23 pm
BWI
-
YOW
2 stops19h 30m
Multiple Airlines
Mon 6/157:00 am
YOW
-
BWI
1 stop29h 13m
Multiple Airlines
Deal found 5/11$454
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/101:29 pm
BWI
-
YUL
2 stops28h 46m
Multiple Airlines
Wed 6/176:50 pm
YUL
-
BWI
1 stop22h 29m
Multiple Airlines
Deal found 5/11$460

Find flight deals from Baltimore to Ontario

Keep the following information in mind while searching for Baltimore to Ontario flight deals. Data was last updated May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$360
(Kiwi.com)

One-way from

$138
(Kiwi.com)

Popular in

November

Cheapest in

June

Average price

$321
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. 3% potential increase in price ($10 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 May 2026
Search Deals

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 May 15, 2026.
Use the filters below to find and compare flights from Baltimore to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Thu 11/5

1:00 pm-5:22 pm

1 stop4h 22m

Toronto Pearson Intl

Sun 11/8

2:15 pm-10:55 pm

1 stop8h 40m

$476

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Tue 6/16

6:08 am-11:19 am

1 stop5h 11m

Toronto Pearson Intl

Fri 6/19

6:14 pm-11:18 pm

1 stop5h 04m

$497

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Sat 6/27

6:24 pm-11:55 pm

1 stop5h 31m

Montreal Pierre Elliott Trudeau Intl

Tue 6/30

7:00 am-3:58 pm

1 stop8h 58m

$508

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Sat 7/11

4:54 pm-11:52 pm

1 stop6h 58m

Montreal Pierre Elliott Trudeau Intl

Mon 7/20

5:10 pm-11:18 pm

1 stop6h 08m

$508

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Wed 7/29

6:15 am-11:49 am

1 stop5h 34m

Toronto Pearson Intl

Mon 8/3

5:15 pm-12:28 am

1 stop7h 13m

$527

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sat 8/1

5:32 pm-11:59 pm

1 stop6h 27m

Toronto Pearson Intl

Wed 8/5

11:00 am-5:36 pm

1 stop6h 36m

$527

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Tue 8/11

5:40 pm-12:06 am

1 stop6h 26m

Toronto Pearson Intl

Wed 8/12

8:50 am-1:58 pm

1 stop5h 08m

$527

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Mon 8/10

5:32 pm-11:59 pm

1 stop6h 27m

Toronto Pearson Intl

Wed 8/12

8:50 am-1:58 pm

1 stop5h 08m

$527

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Fri 7/3

8:16 am-1:42 pm

1 stop5h 26m

Toronto Pearson Intl

Wed 7/8

8:45 am-1:57 pm

1 stop5h 12m

$527
Quickest round-trip

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sun 9/20

9:35 am-1:25 pm

1 stop3h 50m

Toronto Pearson Intl

Fri 9/25

6:08 pm-10:54 pm

1 stop4h 46m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 60 resultsSorted by cheapest first
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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, June is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of $99). Flying from Baltimore to Region of Ontario in January is currently the most expensive (average of $262). 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.

How much does it cost to fly round-trip from Baltimore to Region of Ontario?

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 May 15, 2026.
Read reviews from past customers who have flown Porter Airlines,Delta, andWestJet 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
439 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
439 reviews
Porter Airlines
8.0
Very good
439 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Delta
7.9
Good
8,453 reviews
Porter Airlines
8.0
Very good
439 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,335 reviews
Porter Airlines
8.0
Very good
439 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
11,042 reviews
Porter Airlines
8.0
Very good
439 reviews

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.6

Crew

8.6

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 4h 22m. There are 347 mi between Baltimore and Region of Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

  • 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, June is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of $99). Flying from Baltimore to Region of Ontario in January is currently the most expensive (average of $262). 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

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Top 3 airlines flying from Baltimore to Ontario

Discover the top 3 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$171Average$518FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$220Average$311FlexibilityNo cancel feeOn-time67%
WestJetCheapest$450Average$672FlexibilityNo cancel feeOn-time60%

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