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Ontario

$75+ Cheap flights from Maryland 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Maryland to Ontario

Keep the following information in mind while searching for Maryland to Ontario flight deals. Data was last updated July 31, 2025.

Round-trip from

$180
(Kiwi.com)

One-way from

$75
(Trip.com)

Popular in

November

Cheapest in

June

Average price

$286

Good round-trip deal

$1,036 or less
From Maryland to Ontario
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One-way flight from Maryland to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($13 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 July 2025
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Price to beat on a round-trip flight from Maryland to Ontario.
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Find flight deals from Maryland to Ontario

Cheapest flights from Maryland to Ontario
Explore the most affordable flight options available from Maryland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/2511:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Sat 9/271:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 7/29$180
This Flightnetwork deal was found by Cheapflights users on 7/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amDCA - YYZ
1 stop4h 39mAir Canada
Sun 9/78:00 amYYZ - DCA
1 stop4h 08mAir Canada
Deal found 7/29$192
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:20 pmIAD - YTZ
Nonstop1h 33mMultiple Airlines
Sun 9/78:45 amYTZ - IAD
Nonstop1h 31mMultiple Airlines
Deal found 7/29$202
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:25 pmIAD - YYZ
Nonstop1h 32mAir Canada
Sun 9/78:10 amYYZ - IAD
Nonstop1h 28mAir Canada
Deal found 7/29$203
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sat 9/138:16 pmBWI - YYZ
1 stop17h 49mMultiple Airlines
Sat 9/206:30 amYYZ - BWI
1 stop8h 17mMultiple Airlines
Deal found 7/30$218
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Wed 9/109:35 amIAD - YTZ
1 stop5h 10mAir Canada
Mon 9/154:10 pmYTZ - IAD
1 stop5h 02mAir Canada
Deal found 7/29$223
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:45 pmDCA - YYZ
1 stop3h 58mDelta
Thu 10/236:00 amYYZ - DCA
1 stop4h 06mDelta
Deal found 7/29$242
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amIAD - YYZ
1 stop7h 32mDelta
Wed 10/223:35 pmYYZ - IAD
1 stop7h 26mDelta
Deal found 7/29$242
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:41 pmIAD - YYZ
Nonstop1h 38mUnited Airlines
Tue 8/195:15 pmYYZ - IAD
1 stop7h 17mUnited Airlines
Deal found 7/29$254
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/134:20 pmIAD - YUL
1 stop3h 50mPorter Airlines
Sat 9/2010:45 amYUL - IAD
1 stop4h 21mPorter Airlines
Deal found 7/28$262
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:54 pmDCA - YYZ
Nonstop1h 39mAmerican Airlines
Sat 9/205:17 pmYYZ - DCA
Nonstop1h 42mAmerican Airlines
Deal found 7/30$262
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Thu 9/1110:20 amIAD - YUL
1 stop11h 21mMultiple Airlines
Mon 9/1510:45 amYUL - IAD
1 stop4h 21mMultiple Airlines
Deal found 7/29$263

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maryland 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 July 31, 2025.
Use the filters below to find and compare flights from Maryland to Ontario that are best for you.

Fly from

Maryland

Fly to

Ontario

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 9/25

11:35 am-1:08 pm

Nonstop1h 33m

Toronto Island

Sat 9/27

1:35 pm-3:06 pm

Nonstop1h 31m

$180

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 9/4

6:00 am-10:39 am

1 stop4h 39m

Toronto Pearson Intl

Sun 9/7

8:00 am-12:08 pm

1 stop4h 08m

$192

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 9/4

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Sun 9/7

8:45 am-10:16 am

Nonstop1h 31m

$202

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 9/4

10:20 am-11:52 am

Nonstop1h 32m

Toronto Pearson Intl

Sun 9/7

8:10 am-9:38 am

Nonstop1h 28m

$203

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Sat 9/13

8:16 pm-2:05 pm

1 stop17h 49m

Toronto Pearson Intl

Sat 9/20

6:30 am-2:47 pm

1 stop8h 17m

$218

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 9/10

9:35 am-2:45 pm

1 stop5h 10m

Toronto Island

Mon 9/15

4:10 pm-9:12 pm

1 stop5h 02m

$223

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 9/3

5:30 pm-10:58 pm

1 stop5h 28m

Toronto Pearson Intl

Fri 10/24

3:35 pm-10:58 pm

1 stop7h 23m

$242

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 9/3

6:00 am-1:32 pm

1 stop7h 32m

Toronto Pearson Intl

Wed 10/22

3:35 pm-11:01 pm

1 stop7h 26m

$242

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 8/19

12:41 pm-2:19 pm

Nonstop1h 38m

Toronto Pearson Intl

Tue 8/19

5:15 pm-12:32 am

1 stop7h 17m

$254

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 9/11

2:54 pm-4:33 pm

Nonstop1h 39m

Toronto Pearson Intl

Sat 9/20

5:17 pm-6:59 pm

Nonstop1h 42m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from Maryland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Maryland 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 Maryland to Ontario

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

Currently, January is the cheapest month in which you can book a flight from Maryland to Region of Ontario (average of $243). Flying from Maryland to Region of Ontario in August is currently the most expensive (average of $348). 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 MD to ON?

Find hourly flight availability from Maryland 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 July 31, 2025.

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

How much does it cost to fly round-trip from Maryland 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 July 31, 2025.
Read reviews from past customers who have flown Porter Airlines, Delta, and Air Transat from Maryland to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,981 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,900 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Related info for your journey

Find useful and relevant information for your journey from Maryland to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    One-way options have recently been found by users for as low as $75 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $84 and Air Transat from $88 one-way.

  • Can I find deals for flights from Maryland to Ontario that include hotel bookings?

    Yes. In addition to deals on Maryland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Maryland to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maryland to Ontario.

  • Can I find deals for business class flights from Maryland to Ontario?

    Yes. Cheapflights offers flight deals from Maryland 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 Maryland to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Maryland to Region of Ontario (average of $243). Flying from Maryland to Region of Ontario in August is currently the most expensive (average of $348). 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 Maryland 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 Maryland to Ontario

Discover the top 5 airlines that operate flights from Maryland 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$108Average$266FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$187Average$520FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$187Average$323FlexibilityNo cancel feeOn-time69%
DeltaCheapest$242Average$322FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$332Average$449FlexibilityNo cancel feeOn-time60%

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