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

For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 213. Users have also found prices from C$ 252 and C$ 290 on WestJet and Porter Airlines, respectively.

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

When deciding which route to take from Region of Ontario to Baltimore consider Toronto Pearson Intl - Baltimore/Washington, Montreal Pierre Elliott Trudeau Intl - Baltimore/Washington or Toronto Island - Baltimore/Washington as they are the most popular.

What are the most popular airlines that fly from Region of Ontario to Baltimore?

When booking a flight from Region of Ontario to Baltimore, you may want to consider flying on Air Canada, Delta or Porter Airlines as they are the most popular for this route.

How far in advance should I book a flight from Region of Ontario to Baltimore?

To save on the cost of your flight from Region of Ontario to Baltimore, book at least 45 days before your planned departure. Booking around this time can save you about 109% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 407 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 649.

What is the cheapest month to fly from Region of Ontario to Baltimore?

The best pricing can be found in the month of April. Prices to Baltimore from Region of Ontario average C$ 350. You can even find prices in April for less than C$ 350, as users have found deals to Baltimore from as low as C$ 204. The month of June appears to be one of the more expensive times to travel to Baltimore from Region of Ontario. Flying in the targeted month can save you up to 18%.

What airport do you fly into for flights to Baltimore from Ontario?

Located just 13.7 km from the city centre, Baltimore/Washington (BWI) is the airport most travelers will use when flying to Baltimore from Ontario.

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

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

How can I find direct flights from Ontario to Baltimore?

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

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

Yes. Cheapflights offers flight deals from Ontario to Baltimore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 205+ Flights from Ontario to Baltimore

Cheap flight deals from Ontario to Baltimore

Round-trip from	C$ 349
One-way from	C$ 205
Popular in	June
Cheapest in	April
Average price	C$ 416

5/8-6/8
2 total stops
43h 55m total
Ontario to Baltimore

Search Deals

8/7
1 total stop
16h 27m total
Ontario to Baltimore

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (C$ 21 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Ontario to Baltimore

Cheapest flights from Ontario to Baltimore
Explore the most affordable flight options available from Ontario to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Tue 5/86:30 a.m.YYZ - BWI

1 stop17h 04mMultiple Airlines

Wed 6/811:14 a.m.BWI - YYZ

1 stop26h 51mMultiple Airlines

Deal found 10/6C$ 349

Fri 4/73:31 p.m.YYZ - BWI

2 stops8h 58mDelta

Tue 8/76:00 a.m.BWI - YYZ

1 stop5h 16mDelta

Deal found 10/6C$ 357

Fri 11/77:50 p.m.YTZ - BWI

1 stop26h 31mMultiple Airlines

Mon 14/76:20 p.m.BWI - YTZ

1 stop24h 54mMultiple Airlines

Deal found 11/6C$ 376

Wed 16/76:00 a.m.YUL - BWI

2 stops11h 19mDelta

Sun 20/75:35 a.m.BWI - YUL

1 stop6h 06mDelta

Deal found 11/6C$ 398

Wed 25/66:15 a.m.YYZ - BWI

1 stop4h 37mWestJet

Wed 25/61:34 p.m.BWI - YYZ

1 stop10h 24mWestJet

Deal found 10/6C$ 458

Mon 28/75:00 p.m.YOW - BWI

1 stop14h 30mMultiple Airlines

Sun 3/86:20 p.m.BWI - YOW

1 stop22h 38mMultiple Airlines

Deal found 10/6C$ 511

Mon 7/710:45 a.m.YUL - BWI

2 stops20h 45mMultiple Airlines

Tue 22/77:10 a.m.BWI - YUL

2 stops15h 05mMultiple Airlines

Deal found 12/6C$ 515

Mon 8/126:15 a.m.YYZ - BWI

1 stop15h 25mAmerican Airlines

Tue 9/127:40 a.m.BWI - YYZ

1 stop13h 45mAmerican Airlines

Deal found 10/6C$ 570

Fri 3/104:40 p.m.YYZ - BWI

1 stop17h 15mUnited Airlines

Sun 5/106:29 a.m.BWI - YYZ

1 stop12h 04mUnited Airlines

Deal found 10/6C$ 592

Tue 24/67:00 a.m.YUL - BWI

1 stop13h 43mWestJet

Tue 1/71:34 p.m.BWI - YUL

2 stops11h 03mWestJet

Deal found 10/6C$ 596

Sat 1/1111:10 a.m.YOW - BWI

1 stop10h 14mUnited Airlines

Sun 16/116:15 a.m.BWI - YOW

1 stop10h 57mUnited Airlines

Deal found 12/6C$ 753

Fri 29/87:15 p.m.YOW - BWI

2 stops25h 36mWestJet

Mon 1/96:15 a.m.BWI - YOW

2 stops18h 25mWestJet

Deal found 12/6C$ 759

Best flights from Ontario to Baltimore
Discover carefully curated flight deals from Ontario to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 June 2025.

Tue 5/86:30 a.m.YYZ - BWI

1 stop17h 04mMultiple Airlines

Wed 6/811:14 a.m.BWI - YYZ

1 stop26h 51mMultiple Airlines

Deal found 10/6C$ 349

Fri 4/73:31 p.m.YYZ - BWI

2 stops8h 58mDelta

Tue 8/76:00 a.m.BWI - YYZ

1 stop5h 16mDelta

Deal found 10/6C$ 357

Wed 25/66:15 a.m.YYZ - BWI

1 stop4h 37mWestJet

Wed 25/61:34 p.m.BWI - YYZ

1 stop10h 24mWestJet

Deal found 10/6C$ 458

Mon 8/126:15 a.m.YYZ - BWI

1 stop15h 25mAmerican Airlines

Tue 9/127:40 a.m.BWI - YYZ

1 stop13h 45mAmerican Airlines

Deal found 10/6C$ 570

Fri 3/104:40 p.m.YYZ - BWI

1 stop17h 15mUnited Airlines

Sun 5/106:29 a.m.BWI - YYZ

1 stop12h 04mUnited Airlines

Deal found 10/6C$ 592

Fri 11/77:50 p.m.YTZ - BWI

1 stop26h 31mMultiple Airlines

Mon 14/76:20 p.m.BWI - YTZ

1 stop24h 54mMultiple Airlines

Deal found 11/6C$ 376

Wed 16/76:00 a.m.YUL - BWI

2 stops11h 19mDelta

Sun 20/75:35 a.m.BWI - YUL

1 stop6h 06mDelta

Deal found 11/6C$ 398

Mon 28/75:00 p.m.YOW - BWI

1 stop14h 30mMultiple Airlines

Sun 3/86:20 p.m.BWI - YOW

1 stop22h 38mMultiple Airlines

Deal found 10/6C$ 511

Wed 25/66:20 a.m.YUL - BWI

1 stop17h 28mWestJet

Thu 26/65:40 a.m.BWI - YUL

1 stop5h 59mWestJet

Deal found 10/6C$ 591

Mon 7/710:45 a.m.YUL - BWI

2 stops20h 45mMultiple Airlines

Tue 22/77:10 a.m.BWI - YUL

2 stops15h 05mMultiple Airlines

Deal found 12/6C$ 515

Sat 1/1111:10 a.m.YOW - BWI

1 stop10h 14mUnited Airlines

Sun 16/116:15 a.m.BWI - YOW

1 stop10h 57mUnited Airlines

Deal found 12/6C$ 753

Fri 29/87:15 p.m.YOW - BWI

2 stops25h 36mWestJet

Mon 1/96:15 a.m.BWI - YOW

2 stops18h 25mWestJet

Deal found 12/6C$ 759

Last-minute flights from Ontario to Baltimore
Discover last-minute flight deals from Ontario to Baltimore. Data last updated 12 June 2025 and is based on user searches.

Tue 17/612:45 p.m.YUL - BWI

1 stop7h 58mDelta

Tue 24/61:34 p.m.BWI - YUL

1 stop10h 20mDelta

Deal found 10/6C$ 540

Thu 19/66:40 a.m.YOW - BWI

1 stop10h 57mUnited Airlines

Mon 23/66:40 a.m.BWI - YOW

1 stop14h 55mUnited Airlines

Deal found 10/6C$ 1,174

Fri 20/67:50 p.m.YTZ - BWI

1 stop11h 40mMultiple Airlines

Tue 24/62:15 p.m.BWI - YTZ

1 stop4h 59mMultiple Airlines

Deal found 10/6C$ 466

Fri 20/610:45 a.m.YUL - BWI

2 stops20h 45mMultiple Airlines

Mon 23/69:51 p.m.BWI - YUL

2 stops18h 09mMultiple Airlines

Deal found 10/6C$ 591

Fri 20/65:15 p.m.YUL - BWI

1 stop6h 04mWestJet

Wed 25/65:40 a.m.BWI - YUL

1 stop5h 59mWestJet

Deal found 10/6C$ 600

Fri 20/66:05 p.m.YYZ - BWI

1 stop5h 14mWestJet

Wed 25/66:00 a.m.BWI - YYZ

1 stop5h 18mWestJet

Deal found 12/6C$ 664

Fri 20/69:55 a.m.YXU - BWI

2 stops11h 01mMultiple Airlines

Thu 26/612:25 p.m.BWI - YXU

2 stops32h 35mMultiple Airlines

Deal found 10/6C$ 796

Fri 20/62:10 p.m.YYZ - BWI

1 stop7h 32mUnited Airlines

Tue 24/66:40 a.m.BWI - YYZ

1 stop5h 09mUnited Airlines

Deal found 11/6C$ 999

Sat 21/612:14 p.m.YYZ - BWI

1 stop4h 18mDelta

Sat 5/75:40 a.m.BWI - YYZ

1 stop4h 44mDelta

Deal found 9/6C$ 455

Sat 21/67:45 a.m.YYZ - BWI

1 stop14h 31mMultiple Airlines

Mon 23/64:41 p.m.BWI - YYZ

1 stop28h 27mMultiple Airlines

Deal found 11/6C$ 513

Sun 22/64:25 p.m.YOW - BWI

1 stop17h 07mMultiple Airlines

Wed 25/68:38 p.m.BWI - YOW

1 stop20h 37mMultiple Airlines

Deal found 11/6C$ 606

Sun 22/66:10 a.m.YOW - BWI

2 stops14h 33mWestJet

Wed 25/66:00 a.m.BWI - YOW

2 stops24h 45mWestJet

Deal found 11/6C$ 1,121

One-way flights from Ontario to Baltimore
Search for one-way flight options from Ontario to Baltimore. Find affordable one-way fares based on user searches. Data last updated 12 June 2025.

Tue 8/76:30 a.m.YYZ - BWI

1 stop16h 27mMultiple Airlines

Deal found 10/6C$ 205

Mon 8/92:50 p.m.YYZ - BWI

1 stop8h 27mDelta

Deal found 11/6C$ 213

Sat 19/71:25 p.m.YTZ - BWI

1 stop8h 56mMultiple Airlines

Deal found 11/6C$ 213

Tue 5/87:00 a.m.YUL - BWI

1 stop8h 39mDelta

Deal found 10/6C$ 241

Mon 23/66:15 a.m.YYZ - BWI

1 stop14h 28mWestJet

Deal found 9/6C$ 252

Tue 24/64:45 p.m.YUL - BWI

2 stops14h 45mMultiple Airlines

Deal found 11/6C$ 261

Wed 25/66:20 a.m.YUL - BWI

1 stop17h 28mWestJet

Deal found 11/6C$ 276

Tue 1/73:50 p.m.YOW - BWI

1 stop27h 43mMultiple Airlines

Deal found 11/6C$ 286

Fri 4/77:55 a.m.YTZ - BWI

2 stops15h 24mPorter Airlines

Deal found 12/6C$ 290

Wed 3/97:30 a.m.YYZ - BWI

2 stops14h 12mUnited Airlines

Deal found 11/6C$ 330

Fri 3/105:15 p.m.YUL - BWI

1 stop17h 39mAmerican Airlines

Deal found 12/6C$ 330

Sat 19/79:45 a.m.YUL - BWI

1 stop13h 39mUnited Airlines

Deal found 10/6C$ 399

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Tue 5/8

6:30 a.m.-11:34 p.m.

1 stop17h 04m

Baltimore/Washington

Wed 6/8

11:14 a.m.-2:05 p.m.

1 stop26h 51m

C$ 349

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Fri 4/7

6:30 a.m.-1:55 p.m.

1 stop7h 25m

Baltimore/Washington

Sat 5/7

3:05 p.m.-11:23 p.m.

1 stop8h 18m

C$ 357

TorontoBaltimore

YTZ - BWI

YTZBWI

Toronto Island

Fri 11/7

7:50 p.m.-10:21 p.m.

1 stop26h 31m

Baltimore/Washington

Mon 14/7

6:20 p.m.-7:14 p.m.

1 stop24h 54m

C$ 376

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Wed 16/7

6:00 a.m.-5:19 p.m.

2 stops11h 19m

Baltimore/Washington

Sun 20/7

5:35 a.m.-11:41 a.m.

1 stop6h 06m

C$ 398

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Wed 25/6

6:15 a.m.-10:52 a.m.

1 stop4h 37m

Baltimore/Washington

Wed 25/6

1:34 p.m.-11:58 p.m.

1 stop10h 24m

C$ 458

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 28/7

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

1 stop14h 30m

Baltimore/Washington

Sun 3/8

6:20 p.m.-4:58 p.m.

1 stop22h 38m

C$ 511

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Mon 7/7

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

2 stops20h 45m

Baltimore/Washington

Tue 22/7

7:10 a.m.-10:15 p.m.

2 stops15h 05m

C$ 515

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Mon 8/12

6:15 a.m.-9:40 p.m.

1 stop15h 25m

Baltimore/Washington

Tue 9/12

7:40 a.m.-9:25 p.m.

1 stop13h 45m

C$ 570

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Wed 25/6

6:20 a.m.-11:48 p.m.

1 stop17h 28m

Baltimore/Washington

Thu 26/6

5:40 a.m.-11:39 a.m.

1 stop5h 59m

C$ 591

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

Fri 3/10

4:40 p.m.-9:55 a.m.

1 stop17h 15m

Baltimore/Washington

Sun 5/10

6:29 a.m.-6:33 p.m.

1 stop12h 04m

C$ 592

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 34 results

Best time to book a flight from Ontario to Baltimore

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

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

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Baltimore (average of C$ 327). Flying from Region of Ontario to Baltimore in June is currently the most expensive (average of C$ 411). 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 ON to BWI?

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

Rainfall in Baltimore by month

In terms of precipitation, rainfall in Baltimore ranges from 74.0 - 104.0 mm per month. July is typically the wettest month, when rainfall can reach 104.0 mm. February is typically the driest time to visit Baltimore when rainfall is around 74.0 mm.

Temperature in Baltimore by month

If weather is an important factor for your trip to Baltimore, 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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

Reviews of airlines servicing Baltimore

To help decide which airline to fly from Ontario to Baltimore, see what other customers have to say about Porter Airlines, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

288 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

Porter Airlines

8.0

Very good

288 reviews

Porter Airlines

8.0

Very good

288 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Delta

8.0

Very good

7,946 reviews

Porter Airlines

8.0

Very good

288 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

United Airlines

7.4

Good

8,790 reviews

Porter Airlines

8.0

Very good

288 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

American Airlines

7.2

Good

10,000 reviews

Porter Airlines

8.0

Very good

288 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

WestJet

7.2

Good

2,868 reviews

Porter Airlines

8.0

Very good

288 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Related info for your journey

What airport do you fly into for flights to Baltimore from Ontario?
Located just 13.7 km from the city centre, Baltimore/Washington (BWI) is the airport most travelers will use when flying to Baltimore from Ontario.
What are the cheapest airlines to fly from Region of Ontario to Baltimore one-way?
For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 213. Users have also found prices from C$ 252 and C$ 290 on WestJet and Porter Airlines, respectively.
What are the most popular routes from Region of Ontario to Baltimore?
When deciding which route to take from Region of Ontario to Baltimore consider Toronto Pearson Intl - Baltimore/Washington, Montreal Pierre Elliott Trudeau Intl - Baltimore/Washington or Toronto Island - Baltimore/Washington as they are the most popular.
Can I find deals for flights from Ontario to Baltimore that include hotel bookings?
Yes. In addition to deals on Ontario to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Baltimore?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Baltimore.
Can I find deals for business class flights from Ontario to Baltimore?
Yes. Cheapflights offers flight deals from Ontario to Baltimore 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 Region of Ontario to Baltimore?
Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Baltimore (average of C$ 327). Flying from Region of Ontario to Baltimore in June is currently the most expensive (average of C$ 411). 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

Alternative routes for Ontario to Baltimore

Pearson Intl to Reagan-National flights

Pearson Intl to Dulles Intl flights

Pearson Intl to Philadelphia flights

Pierre Elliott Trudeau Intl to Dulles Intl flights

Toronto Island to Dulles Intl flights

Pierre Elliott Trudeau Intl to Philadelphia flights

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Vancouver Intl to Dulles Intl flights

Pierre Elliott Trudeau Intl to Baltimore flights

Vancouver Intl to Reagan-National flights

Calgary to Dulles Intl flights

Vancouver Intl to Baltimore flights

Ottawa to Reagan-National flights

Vancouver Intl to Philadelphia flights

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Calgary to Philadelphia flights

Edmonton to Dulles Intl flights

Toronto Island to Reagan-National flights

Edmonton to Philadelphia flights

Toronto Island to Philadelphia flights

Toronto Island to Baltimore flights

Halifax to Baltimore flights

Calgary to Reagan-National flights

Edmonton to Baltimore flights

Calgary to Baltimore flights

Ottawa to Baltimore flights

Edmonton to Reagan-National flights

Québec City to Philadelphia flights

Ottawa to Philadelphia flights

Halifax to Dulles Intl flights

Winnipeg to Dulles Intl flights

Winnipeg to Baltimore flights

Winnipeg to Reagan-National flights

Halifax to Philadelphia flights

Halifax to Reagan-National flights

Winnipeg to Philadelphia flights

Saskatoon to Reagan-National flights

London to Dulles Intl flights

Kelowna to Dulles Intl flights

Victoria to Dulles Intl flights

Saskatoon to Baltimore flights

Regina to Baltimore flights

Regina to Reagan-National flights

Fredericton to Dulles Intl flights

St. John's to Dulles Intl flights

Québec City to Dulles Intl flights

Saskatoon to Philadelphia flights

Kelowna to Baltimore flights

Complete your trip

Baltimore car rentals

Baltimore/Washington Airport car rentals

Washington, D.C. Dulles Intl Airport car rentals

Washington, D.C. Reagan-National Airport car rentals

Downtown car rentals

Inner Harbor car rentals

West Baltimore car rentals

Fells Point car rentals

North Baltimore car rentals

Mount Vernon car rentals

East Baltimore car rentals

Canton car rentals

Top 5 airlines flying from Ontario to Baltimore

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 198	AverageC$ 391	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Porter Airlines	CheapestC$ 245	AverageC$ 364	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Delta	CheapestC$ 307	AverageC$ 364	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 346	AverageC$ 532	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 390	AverageC$ 520	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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

When you search for this flight from Ontario to Baltimore, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to Baltimore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Baltimore from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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

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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.

Cheap flights from Ontario to Baltimore from C$ 205

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Baltimore

Keep the following information in mind while searching for Ontario to Baltimore flight deals. Data was last updated 12 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Baltimore

Cheapest flights from Ontario to BaltimoreExplore the most affordable flight options available from Ontario to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Explore the most affordable flight options available from Ontario to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Baltimore

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

What is the cheapest time of day to fly from ON to BWI?

Find hourly flight availability from Ontario to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

Rainfall in Baltimore by month

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

Temperature in Baltimore by month

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

Reviews of airlines servicing Baltimore

Related info for your journey

Find useful and relevant information for your journey from Ontario to Baltimore. 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 into for flights to Baltimore from Ontario?

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

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

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

How can I find direct flights from Ontario to Baltimore?

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

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

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 Ontario to Baltimore

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to Baltimore

Fly with Cheapflights

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Cheapest flights from Ontario to Baltimore
Explore the most affordable flight options available from Ontario to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.