BTV - ONT

$206 Find Cheap Flights from Burlington to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Burlington to Ontario departing on 4/7. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Burlington to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Burlington to Ontario, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$422
United Airlines
Tue 5/19Tue 5/26
BTV - ONT • 1 stop
Cheapest one-way
$206
Multiple Airlines
Tue 4/7
BTV - ONT • 3 stops
Top airlines
United Airlines
Cheapest • from $422 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Burlington and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $481 (round-trip)
Denver (DEN)
Shortest trip • 8h 03m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Burlington to Ontario (BTV-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Burlington 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 Burlington to Ontario

Tue, May 19 - Tue, May 26
United Airlines Logo
4:55 pm - 10:30 pm
BTV
-
ONT
8h 35m
1 stop
United Airlines Logo
6:30 pm - 9:23 am
ONT
-
BTV
11h 53m
2 stops
$422United Airlines
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
4:55 pm - 10:18 pm
BTV
-
ONT
8h 23m
1 stop
United Airlines Logo
7:00 am - 11:59 pm
ONT
-
BTV
13h 59m
2 stops
$438United Airlines
Wed, Aug 12 - Mon, Aug 17
Delta Logo
12:25 pm - 9:56 pm
BTV
-
ONT
12h 31m
2 stops
Delta Logo
12:00 pm - 11:48 pm
ONT
-
BTV
8h 48m
1 stop
$443Delta
Wed, Apr 1 - Tue, Apr 7
American Airlines Logo
5:49 am - 4:22 pm
BTV
-
ONT
13h 33m
2 stops
American Airlines Logo
10:26 pm - 12:21 pm
ONT
-
BTV
10h 55m
1 stop
$473American Airlines
Wed, Mar 25 - Wed, Apr 1
American Airlines Logo
5:35 am - 6:42 pm
BTV
-
ONT
16h 07m
2 stops
American Airlines Logo
7:59 pm - 10:31 am
ONT
-
BTV
11h 32m
2 stops
$478American Airlines
Tue, Mar 24 - Wed, Apr 1
Delta Logo
5:35 am - 11:47 am
BTV
-
ONT
9h 12m
1 stop
Delta Logo
12:57 pm - 11:59 pm
ONT
-
BTV
8h 02m
1 stop
$488Delta
Wed, Apr 1 - Tue, Apr 7
Delta Logo
5:35 am - 11:47 am
BTV
-
ONT
9h 12m
1 stop
Delta Logo
10:25 pm - 1:51 pm
ONT
-
BTV
12h 26m
2 stops
$499Delta
Wed, Apr 1 - Tue, Apr 7
United Airlines Logo
5:30 am - 12:38 pm
BTV
-
ONT
10h 08m
2 stops
United Airlines Logo
7:00 am - 11:59 pm
ONT
-
BTV
13h 59m
2 stops
$504United Airlines
Tue, May 19 - Tue, May 26
United Airlines Logo
4:55 pm - 10:30 pm
BTV
-
ONT
8h 35m
1 stop
United Airlines Logo
5:00 am - 3:36 pm
ONT
-
BTV
7h 36m
1 stop
$533United Airlines
Sat, Apr 4 - Sat, Apr 11
United Airlines Logo
4:55 pm - 10:26 pm
BTV
-
ONT
8h 31m
1 stop
United Airlines Logo
6:49 pm - 11:22 am
ONT
-
BTV
13h 33m
2 stops
$538United Airlines
Booking Insights

KAYAK's insights & trends for Burlington to Ontario flights

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

Which airlines provide the cheapest flights from Burlington to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Burlington to Ontario were found on United Airlines ($422) and Delta ($438).

Good to know

Low seasonJuly
Cheapest flight$206
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Burlington to Ontario

When to book flights from Burlington to Ontario

Are your dates flexible? Find out the best times to travel from Burlington to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Burlington to Ontario

  • What is the cheapest flight from Burlington to Ontario?

    In the last 3 days, the lowest price for a flight from Burlington to Ontario was $206 for a one-way ticket and $422 for a round-trip.

  • Do I need a passport to fly between Burlington and Ontario?

    No, a passport isn't needed to fly from Burlington to Ontario. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Burlington to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Burlington to Ontario?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Burlington and Ontario, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Burlington to Ontario, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Burlington to Ontario are Delta and United Airlines. With an average price for the route of $419 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $536 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Burlington 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 Burlington to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Burlington 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 Burlington 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 to Ontario with an airline and back to Burlington with another airline. Booking your flights between Burlington and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Burlington 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 to Ontario from Burlington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Burlington to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Burlington 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 Burlington 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
DeltaOverall score based on 8242 reviews
7.8Entertainment
8.1Boarding
7.2Food
8.5Crew
7.9Comfort
Airline reviews

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

10.0 ExcellentSoosnata, Feb 2026
MIA - LAX
Read more Delta reviews

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

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

Information on your arrival and departure airports