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Ontario

$58+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YYZ
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$211
(Kiwi.com)

One-way from

$58
(Trip.com)

Popular in

February

Cheapest in

June

Average price

$270

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 ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/174:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Mon 10/208:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 9/14$211
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/81:45 pmIAD - YTZ
Nonstop1h 30mPorter Airlines
Sat 11/1511:00 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 9/14$212
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/184:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Mon 10/208:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 9/13$213
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/166:00 amDCA - YYZ
1 stop4h 39mAir Canada
Sun 10/197:25 amYYZ - DCA
Nonstop1h 34mAir Canada
Deal found 9/15$213
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 10/304:30 pmIAD - YYZ
Nonstop1h 28mAir Canada
Thu 11/62:20 pmYYZ - IAD
Nonstop1h 31mAir Canada
Deal found 9/15$213
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/238:21 pmBWI - YYZ
1 stop17h 44mMultiple Airlines
Sun 10/264:00 pmYYZ - BWI
1 stop6h 36mMultiple Airlines
Deal found 9/14$214
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/164:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Sat 10/181:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 9/14$214
This FlightHub deal was found by Cheapflights users on 9/14. 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.
Mon 11/106:30 pmIAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 11/128:55 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 9/14$215
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/96:30 pmIAD - YTZ
Nonstop1h 30mPorter Airlines
Fri 11/148:55 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 9/14$216
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 10/306:00 amDCA - YYZ
1 stop4h 49mAir Canada
Thu 11/67:20 amYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 9/15$216
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/14:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Wed 10/81:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 9/15$218
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/11:45 pmIAD - YTZ
Nonstop1h 30mPorter Airlines
Tue 11/43:45 pmYTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 9/14$219

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 September 15, 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 11/6

11:40 am-1:10 pm

Nonstop1h 30m

Toronto Island

Wed 11/12

3:45 pm-5:14 pm

Nonstop1h 29m

$212

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 11/6

11:40 am-1:10 pm

Nonstop1h 30m

Toronto Island

Sat 11/15

11:00 am-12:29 pm

Nonstop1h 29m

$212

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 11/8

1:45 pm-3:15 pm

Nonstop1h 30m

Toronto Island

Wed 11/12

3:45 pm-5:14 pm

Nonstop1h 29m

$212

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 11/10

6:30 pm-8:00 pm

Nonstop1h 30m

Toronto Island

Wed 11/12

3:45 pm-5:14 pm

Nonstop1h 29m

$215

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 10/16

11:35 am-1:08 pm

Nonstop1h 33m

Toronto Island

Sun 10/19

8:45 am-10:16 am

Nonstop1h 31m

$218

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 10/12

11:35 am-1:08 pm

Nonstop1h 33m

Toronto Island

Wed 10/15

1:35 pm-3:06 pm

Nonstop1h 31m

$220

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 10/6

11:35 am-1:08 pm

Nonstop1h 33m

Toronto Island

Wed 10/8

1:35 pm-3:06 pm

Nonstop1h 31m

$220

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 10/15

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Thu 10/16

8:45 am-10:16 am

Nonstop1h 31m

$220

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 10/3

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Sun 10/5

8:45 am-10:16 am

Nonstop1h 31m

$223

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 10/1

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Sun 10/5

8:45 am-10:16 am

Nonstop1h 31m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 September 15, 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.

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 September 15, 2025.
Read reviews from past customers who have flown Delta, Porter Airlines, and United Airlines from Maryland 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
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Porter Airlines
7.9
Good
363 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
3,091 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Airlines like Porter Airlines, United Airlines, and Air Canada fly from Maryland to Region of Ontario in about 1h 30m. The time it takes to get you to your destination can typically vary by up to 3h 09m. The distance from Maryland to Region of Ontario is about 339 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $97 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $98 and United Airlines from $106 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$108Average$266FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$187Average$323FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$212Average$311FlexibilityNo cancel feeOn-time67%
DeltaCheapest$242Average$316FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$349Average$471FlexibilityNo cancel feeOn-time60%

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