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Cheap flights from Baltimore to Ontario from C$ 138

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

C$ 353

One-way from

C$ 138

Popular in

August

Cheapest in

March

Average price

C$ 396
Delta
  • Delta
  • 3/6-4/6
  • 2 total stops
  • 12h 55m total
  • Baltimore to Ontario
Search Deals
Delta
  • Delta
  • 10/6
  • 1 total stop
  • 9h 06m total
  • Baltimore to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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 30 April 2025.

Tue 3/66:15 a.m.BWI - YYZ
1 stop5h 25mDelta
Wed 4/63:50 p.m.YYZ - BWI
1 stop7h 30mDelta
Deal found 27/4C$ 353
Sat 7/67:57 p.m.BWI - YYZ
1 stop18h 08mMultiple Airlines
Tue 10/66:30 a.m.YYZ - BWI
1 stop16h 11mMultiple Airlines
Deal found 29/4C$ 389
Tue 27/56:00 a.m.BWI - YYZ
1 stop5h 25mWestJet
Sat 31/56:05 p.m.YYZ - BWI
1 stop4h 20mWestJet
Deal found 28/4C$ 442
Fri 30/55:15 p.m.BWI - YUL
1 stop6h 01mDelta
Tue 3/66:00 a.m.YUL - BWI
1 stop6h 10mDelta
Deal found 27/4C$ 472
Thu 29/59:24 p.m.BWI - YTZ
1 stop15h 30mMultiple Airlines
Sun 15/65:55 p.m.YTZ - BWI
1 stop13h 35mMultiple Airlines
Deal found 28/4C$ 476
Tue 17/68:38 p.m.BWI - YUL
2 stops27h 59mMultiple Airlines
Fri 20/610:45 a.m.YUL - BWI
2 stops20h 45mMultiple Airlines
Deal found 28/4C$ 479
Mon 26/55:35 a.m.BWI - YOW
1 stop4h 38mMultiple Airlines
Mon 2/64:40 p.m.YOW - BWI
1 stop4h 41mMultiple Airlines
Deal found 27/4C$ 514
Sun 18/56:00 a.m.BWI - YUL
1 stop6h 00mWestJet
Thu 22/57:00 a.m.YUL - BWI
1 stop10h 30mWestJet
Deal found 27/4C$ 525
Thu 25/912:23 p.m.BWI - YUL
1 stop24h 15mSun Country Air
Sun 28/99:45 a.m.YUL - BWI
1 stop25h 35mSun Country Air
Deal found 29/4C$ 537
Thu 12/65:40 a.m.BWI - YOW
2 stops23h 45mWestJet
Thu 19/66:10 a.m.YOW - BWI
2 stops12h 28mWestJet
Deal found 28/4C$ 1,070
Wed 9/79:22 a.m.BWI - YOW
2 stops15h 00mDelta
Wed 16/75:55 a.m.YOW - BWI
2 stops10h 46mDelta
Deal found 28/4C$ 1,073
Wed 16/76:15 a.m.BWI - YOW
1 stop15h 20mUnited Airlines
Sun 20/75:25 p.m.YOW - BWI
1 stop28h 17mUnited Airlines
Deal found 28/4C$ 1,305

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 629,999 searches. Data last updated 30 April 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

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Tue 3/6

6:15 a.m.-11:40 a.m.

1 stop5h 25m

Toronto Pearson Intl

Wed 4/6

3:50 p.m.-11:20 p.m.

1 stop7h 30m

C$ 353

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sat 7/6

7:57 p.m.-2:05 p.m.

1 stop18h 08m

Toronto Pearson Intl

Tue 10/6

6:30 a.m.-10:41 p.m.

1 stop16h 11m

C$ 389

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Tue 27/5

6:00 a.m.-11:25 a.m.

1 stop5h 25m

Toronto Pearson Intl

Sat 31/5

6:05 p.m.-10:25 p.m.

1 stop4h 20m

C$ 442

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Fri 30/5

5:15 p.m.-11:16 p.m.

1 stop6h 01m

Montreal Pierre Elliott Trudeau Intl

Tue 3/6

6:00 a.m.-12:10 p.m.

1 stop6h 10m

C$ 472

BaltimoreToronto

BWI - YTZ

BWIYTZ

Baltimore/Washington

Thu 29/5

9:24 p.m.-12:54 p.m.

1 stop15h 30m

Toronto Island

Sun 15/6

5:55 p.m.-7:30 a.m.

1 stop13h 35m

C$ 476

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Tue 17/6

8:38 p.m.-12:37 a.m.

2 stops27h 59m

Montreal Pierre Elliott Trudeau Intl

Fri 20/6

10:45 a.m.-7:30 a.m.

2 stops20h 45m

C$ 479

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 26/5

5:35 a.m.-10:13 a.m.

1 stop4h 38m

Ottawa

Mon 2/6

4:40 p.m.-9:21 p.m.

1 stop4h 41m

C$ 514

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Sun 18/5

6:00 a.m.-12:00 p.m.

1 stop6h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 22/5

7:00 a.m.-5:30 p.m.

1 stop10h 30m

C$ 525

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Thu 25/9

12:23 p.m.-12:38 p.m.

1 stop24h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 28/9

9:45 a.m.-11:20 a.m.

1 stop25h 35m

C$ 537

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 12/6

5:40 a.m.-5:25 a.m.

2 stops23h 45m

Ottawa

Thu 19/6

6:10 a.m.-6:38 p.m.

2 stops12h 28m

C$ 1,070

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 25 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, January is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of C$ 167). Flying from Baltimore to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 30 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to Region of Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 30 April 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Baltimore to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,826 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Sun Country Air
6.9
Okay
346 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    If you book a flight to Ontario from Baltimore, you will be flying from Baltimore/Washington, which is the city’s only airport. Baltimore/Washington (BWI) is located 13.7 km from the centre of Baltimore.

  • What are the cheapest airlines to fly from Baltimore to Region of Ontario one-way?

    C$ 138 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on WestJet and United Airlines, with prices starting from C$ 215 and C$ 363, respectively.

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

    While some choose either Baltimore/Washington - Montreal Pierre Elliott Trudeau Intl or Baltimore/Washington - Toronto Island, Baltimore/Washington - Toronto Pearson Intl is the most popular 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, January is the cheapest month in which you can book a flight from Baltimore to Region of Ontario (average of C$ 167). Flying from Baltimore to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 airline flying from Baltimore to Ontario

Discover the top airline 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 629,999 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 471AverageC$ 621FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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How does Cheapflights help users find flights from Baltimore to Ontario?

Deals for Baltimore to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Baltimore to Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Baltimore to Ontario.

Can Cheapflights find flights from Baltimore to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Baltimore to Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Baltimore to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from Baltimore today and book when prices fit your budget.

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