$123 Find Cheap Flights from Baltimore to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Ontario departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Baltimore to Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ottawa
Ottawa2 stops$340
Thunder Bay
Thunder Bay2 stops$858
London
London2 stops$880
Windsor
Windsor2 stops$2,203
Sault Ste Marie
Sault Ste Marie2 stops$2,331
Ottawa
Ottawa2 stops$340
Thunder Bay
Thunder Bay2 stops$858
London
London2 stops$880
Windsor
Windsor2 stops$2,203
Sault Ste Marie
Sault Ste Marie2 stops$2,331

Book Cheap Baltimore to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to Ontario

Wed, Aug 19 - Tue, Aug 25
Multiple Airlines Logo
1:20 pm - 2:05 pm
BWI
-
YYZ
24h 45m
1 stop
Multiple Airlines Logo
9:30 am - 12:25 pm
YYZ
-
BWI
26h 55m
1 stop
$278Multiple Airlines
Thu, Sep 10 - Sun, Sep 27
Multiple Airlines Logo
1:55 pm - 8:55 pm
BWI
-
YYZ
31h 00m
1 stop
Multiple Airlines Logo
7:30 am - 1:00 pm
YYZ
-
BWI
29h 30m
1 stop
$289Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
1:20 pm - 4:55 pm
BWI
-
YYZ
27h 35m
1 stop
Multiple Airlines Logo
9:30 am - 12:25 pm
YYZ
-
BWI
26h 55m
1 stop
$290Multiple Airlines
Tue, Aug 25 - Wed, Sep 9
Multiple Airlines Logo
1:20 pm - 4:55 pm
BWI
-
YYZ
27h 35m
1 stop
Multiple Airlines Logo
9:30 am - 1:00 pm
YYZ
-
BWI
27h 30m
1 stop
$306Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
6:25 pm - 11:43 am
BWI
-
YUL
17h 18m
1 stop
American Airlines Logo
12:30 pm - 9:59 pm
YUL
-
BWI
9h 29m
1 stop
$487American Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
7:03 am - 4:50 pm
BWI
-
YUL
9h 47m
1 stop
American Airlines Logo
12:30 pm - 9:59 pm
YUL
-
BWI
9h 29m
1 stop
$488American Airlines
Fri, Sep 11 - Mon, Sep 14
WestJet Logo
2:03 pm - 7:05 am
BWI
-
YUL
17h 02m
2 stops
WestJet Logo
8:00 pm - 5:28 pm
YUL
-
BWI
21h 28m
2 stops
$508WestJet
Fri, Dec 11 - Mon, Dec 14
WestJet Logo
7:30 am - 11:37 pm
BWI
-
YUL
16h 07m
1 stop
WestJet Logo
7:00 am - 5:03 pm
YUL
-
BWI
10h 03m
1 stop
$511WestJet
Fri, Sep 25 - Mon, Sep 28
United Airlines Logo
9:09 am - 10:48 pm
BWI
-
YQT
13h 39m
2 stops
United Airlines Logo
11:45 am - 10:59 pm
YQT
-
BWI
11h 14m
2 stops
$858United Airlines
Fri, Sep 25 - Mon, Sep 28
United Airlines Logo
9:09 am - 10:48 pm
BWI
-
YQT
13h 39m
2 stops
United Airlines Logo
11:45 am - 10:59 pm
YQT
-
BWI
11h 14m
2 stops
$869United Airlines
Booking Insights

KAYAK's insights & trends for Baltimore to Ontario flights

Get data-powered insights and trends into flights from Baltimore to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Baltimore to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Baltimore to Region of Ontario departing in August.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights from Baltimore to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost $1,422 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,422.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Baltimore to Ontario is December, when tickets cost $118 (return) on average. On the other hand, the most expensive months are January and April, when the average cost of round-trip tickets is $262 and $255 respectively.

Good to know

Low seasonFebruary
Cheapest flight$123
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Baltimore to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Baltimore to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Baltimore to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Baltimore to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Baltimore to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Baltimore to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Porter AirlinesOverall score based on 444 reviews
7.9Comfort
7.5Food
6.9Entertainment
8.2Boarding
8.6Crew
Airline reviews

A few improvements: 1. No signages at the airport that the porter airline was a codeshare and i could check-in at American counter. 2. Crew at the gate said they couldn't change my reward to Alaska - despite that being done previously 3. Despite there being many open seats, i was assigned a seat at the very back near lavatory, last row. Fortunately, the pilot wanted more people moved up so the flight attendants moved me up. It seemed very odd to have been stuck in last row with very few people nearby..

6.0 GoodHarsh, Apr 2026
JFK - YYZ
Read more Porter Airlines reviews

A few improvements: 1. No signages at the airport that the porter airline was a codeshare and i could check-in at American counter. 2. Crew at the gate said they couldn't change my reward to Alaska - despite that being done previously 3. Despite there being many open seats, i was assigned a seat at the very back near lavatory, last row. Fortunately, the pilot wanted more people moved up so the flight attendants moved me up. It seemed very odd to have been stuck in last row with very few people nearby..

The flight booking code given by Kayak was not the correct one used by the airline. I had to call to get the correct one. It was never sent to me. Totally unacceptable!

Much roomer than air Canada! Great flight for the price. No complaints

As a first time flyer with Porter I was happy with the service and comfort of the airline.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

The flight was half empty yet they charged me $50 for a basic carry on! I saw how passengers of different colors were treated differently.

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.

Flight was delayed over 2 hours, then landed at a different airport!

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

Overall, terrible. Flight from SFO was delayed due to “air traffic control issues”, and we were all mislead about connecting flights. Told “you have 20 minutes to catch your connection”. Reality was 5. We got to watch the plane sit at the bridge. Won’t fly Delta with a connection again.

We were forced to wait nearly 50 additional minutes before leaving the terminal.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Forced to check my bag which fit in carry on, boarded and then sat for over an hour waiting to take off with no explanation.

Did not get a vegetarian option in 1st class and the video was not working.

My sister and I paid to have our seats and have them next to each other. I heard one of the employees say to the other one that you shouldn’t have given away reserved seats away to other passengers, and so I guess that is what happened because I got the last most uncomfortable seat in the plane even though I paid to sit in the middle of the plane with my sister. Terrible Experience !!

We checked one bag. That was fast and the agent was fast and super nice. At the gate, boarding was fast and efficient. Flight was uneventful which was great because it was early in the morning and most folks were sleeping. Landing was great. Delta does a really good job of making the flying experience better all around considering you are sitting in such a small space on a plane for several hours.

The seats were uncomfortable, as if the cushions haven't been switched out in many years. I felt like I was on an old bus. The food was delicious. thank you. Onboard entertainment, very limited. Unless you like violent movies. Why in the world would you have such severely violent movies on a plane? if you don't want to see such things, you don't have a choice. Have you considered that when choosing entertainment? Good god. Why would you have the Godfather? Or black women being brutally beaten with a club? Why in the hell would you put that kind of material on a plane? As for Kayak: Why when I ordered Qantas, was the plane on United?

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

Entertainment kept turning itself off. Gave up on watching a movie.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Miserable. Active military on orders turned away from Lounge because not in uniform. This is completely contrary to United’s online lounge access policy. Sad that employees aren’t trained better. This is not the United Airlines my parents used to regularly fly with.

Both flights were fine. I wish there was a little more legroom, but we got to where we needed to be on time, the crew did their job, and that’s really all that matters. We’ll fly United again.

Crew was unhelpful in boarding. Did not help passengers board and store bags efficiently. Did not alleviate tensions as passengers had to stow bags then return forward to seats. Baggage rules are unreasonable. Will fly southwest next time

On time from BWI to IAH but delayed over an hour from IAH to AUS without reason.

The overall service, quality, and price-point value for USA domestic flights is quite poor. If there were other options, I would take them.

Westjet was late and we missed our connecting flight with Cathay. Had to wait 8 hours. Westjet only allows 1 checked in baggage for international flights- it’s always been 2. Canada allows only 1 sandwhich bag size full off small liquids. Everything else will be tossed. Awful trip. Will never fly west jet or go to Toronto to connect flights!

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

It was meh as they lost one of my bags and t showed up a day later

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

Flight was on time. Online check in capabilities made things quick and easy. Zone boarding was enforced, which I appreciate. Everyone was not lining up ahead of their zone being called. Crew was professional and friendly.

The big lady was sitting right next to me and the button to recline my seat was blocked by her huge arm. No power outlet for chargers. No inflight Wi-Fi movies

Trip was uneventful which is good. Boarding took a long time due to many disabled/elderly requiring assistance which again is fine. Landing and take off were excellent. Food and entertainment were as expected, bring your own if you have preferences otherwise you get what you get.

Okay but not like typical first or business class. On domestic airlines

I liked the kindness of the check in counter crew, the flexibility with changing seats and the comfort. Better free drink selection would have been good but it wasn't a long flight.

Food was great, I wished there was better options for movies.

737-8 Max is an awful design. Toilets in the rear are inaccessible for most of the flight due to service carts.

Flight was overbooked and seats assigned to multiple passengers. Delay 1 hour to sort out.

Good but I don’t received my bags yet is been 5days still no update

The whole trip was awesome. Am actually booking another flight to Arizona the end of November....flight was on time. Crew were awesome...

Better seats and more overhead space. The plane was tiny.

Multiple Delays for about 4hours. That is simply unacceptable and ridiculous

This didn’t apply to me but some travellers might like to know. On Air Canada flights using a small plane (Bombadier 200) the size of carry on luggage is reduced. I saw several travellers with normal size carryons have to pay extra because the bags were too big.

Sat beside someone large and damp who raised the seat partition and who sat partially on my seat. Thank God it was not a long flight

Staff was very good. The food was terrible and entertainment was very poor. The airline had a very very basic feel. The take off was delayed by 7 hours. I would really not want to fly air Canada again. BUT, the staff was very good.

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

Information on your arrival and departure airports