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$269+ Cheap flights from Burlington to Ontario (BTV - ONT)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BTV — ONT
Aug 24 — Aug 311
Sun 8/24
Sun 8/31
1 adult, Economy
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Cheap flight deals from Burlington to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Burlington (BTV) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 19, 2025.

Round-trip from

$314
(United Airlines)

One-way from

$269
(United Airlines)

Popular in

September

Cheapest in

July

Average price

$384
From Burlington to Ontario
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One-way flight from Burlington to Ontario
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Highest demand for flights based on searches. 9% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Burlington to Ontario

Cheapest flights from Burlington to Ontario
Explore the most affordable flight options available from Burlington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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.
Tue 9/306:03 amBTV - ONT
1 stop7h 39mDelta
Sat 10/47:05 amONT - BTV
2 stops13h 35mDelta
Deal found 8/18$314
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Fri 10/33:38 pmBTV - ONT
1 stop8h 46mAmerican Airlines
Mon 10/611:59 pmONT - BTV
2 stops13h 18mAmerican Airlines
Deal found 8/17$364
This Delta deal was found by Cheapflights users on 8/19. 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.
Tue 9/236:03 amBTV - ONT
1 stop7h 39mDelta
Mon 9/2911:55 amONT - BTV
1 stop7h 45mDelta
Deal found 8/19$380
This Delta deal was found by Cheapflights users on 8/19. 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 9/242:26 pmBTV - ONT
2 stops10h 57mDelta
Mon 9/2911:55 amONT - BTV
1 stop7h 45mDelta
Deal found 8/19$385
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 9/194:40 pmBTV - ONT
1 stop8h 50mUnited Airlines
Mon 9/225:10 amONT - BTV
1 stop7h 16mUnited Airlines
Deal found 8/18$396
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/234:40 pmBTV - ONT
1 stop8h 50mUnited Airlines
Sun 9/287:02 amONT - BTV
1 stop7h 48mUnited Airlines
Deal found 8/19$409
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 9/113:40 pmBTV - ONT
1 stop8h 03mUnited Airlines
Mon 9/156:38 pmONT - BTV
2 stops11h 53mUnited Airlines
Deal found 8/19$414
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/3010:35 amBTV - ONT
2 stops15h 17mUnited Airlines
Sat 10/46:51 pmONT - BTV
2 stops14h 02mUnited Airlines
Deal found 8/18$419
This Delta deal was found by Cheapflights users on 8/17. 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.
Thu 9/116:03 amBTV - ONT
1 stop7h 39mDelta
Fri 9/1911:55 amONT - BTV
1 stop7h 45mDelta
Deal found 8/17$441
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 8/203:15 pmBTV - ONT
1 stop8h 55mAmerican Airlines
Sun 8/2411:59 pmONT - BTV
2 stops12h 35mAmerican Airlines
Deal found 8/17$457
This Delta deal was found by Cheapflights users on 8/17. 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 8/202:45 pmBTV - ONT
2 stops10h 35mDelta
Sun 8/2410:00 pmONT - BTV
2 stops14h 04mDelta
Deal found 8/17$462
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 9/34:40 pmBTV - ONT
1 stop8h 50mUnited Airlines
Sun 9/75:10 amONT - BTV
1 stop7h 16mUnited Airlines
Deal found 8/19$469

Cheapflights Fare Finder

 
Customize your flight search to find flights from Burlington 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 August 19, 2025.
Use the filters below to find and compare flights from Burlington to Ontario that are best for you.

Fly from

Burlington

Fly to

Ontario

Route

Depart

Return

Price

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Fri 9/19

4:40 pm-10:30 pm

1 stop8h 50m

Ontario

Mon 9/22

6:50 pm-9:31 am

2 stops11h 41m

$314

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 9/30

6:03 am-10:42 am

1 stop7h 39m

Ontario

Sat 10/4

7:05 am-11:40 pm

2 stops13h 35m

$314

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 2/11

5:30 am-11:38 am

1 stop9h 08m

Ontario

Thu 2/19

1:00 pm-11:42 pm

1 stop7h 42m

$334

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 2/10

5:30 am-11:38 am

1 stop9h 08m

Ontario

Thu 2/19

1:00 pm-11:42 pm

1 stop7h 42m

$334

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Fri 10/3

3:38 pm-9:24 pm

1 stop8h 46m

Ontario

Mon 10/6

11:59 pm-4:17 pm

2 stops13h 18m

$364

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 9/23

6:03 am-10:42 am

1 stop7h 39m

Ontario

Mon 9/29

11:55 am-10:40 pm

1 stop7h 45m

$380

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 2/10

5:30 am-11:38 am

1 stop9h 08m

Ontario

Fri 2/20

1:00 pm-11:42 pm

1 stop7h 42m

$380

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 2/10

5:30 am-11:38 am

1 stop9h 08m

Ontario

Tue 2/17

1:00 pm-11:42 pm

1 stop7h 42m

$380

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 2/11

5:30 am-11:38 am

1 stop9h 08m

Ontario

Fri 2/20

1:00 pm-11:42 pm

1 stop7h 42m

$380

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 9/10

6:00 am-8:33 pm

2 stops17h 33m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 17 results
1
2

Best time to book a flight from Burlington to Ontario

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

What is the cheapest month to book a flight from Burlington to Ontario?

Currently, August is the cheapest month in which you can book a flight from Burlington to Ontario (average of $246). Flying from Burlington to Ontario in March is currently the most expensive (average of $328). 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.

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 August 19, 2025.
Peruse reviews from past customers who have flown with Delta from Burlington to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Burlington 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 Burlington to Ontario?

    A quick flight from Burlington to Ontario can take about 7h 39m. United Airlines provides one of the quickest options available for as low as $314. The distance from Burlington to Ontario is about 2449 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Burlington to Ontario round-trip?

    Delta, at $333, was found to be the cheapest airline from Burlington to Ontario.. Delta is priced at 22% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Burlington 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 Burlington to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Burlington to Ontario (average of $246). Flying from Burlington to Ontario in March is currently the most expensive (average of $328). 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 Burlington to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Burlington to Ontario

Discover the top airline that operate flights from Burlington 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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$333Average$438FlexibilityNo cancel feeOn-timeN/A

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