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$343+ Cheap flights from Burlington to Ontario (BTV - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
BTV — ONT
Jan 26 — Feb 21
Mon 1/26
Mon 2/2
1 adult, Economy
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Cheap 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 December 27, 2025.

This United Airlines deal was found by Cheapflights users on 12/25. 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.
Sat 12/274:38 pmBTV - ONT
1 stop8h 47mUnited Airlines
Wed 12/3111:59 pmONT - BTV
1 stop7h 23mUnited Airlines
Deal found 12/25$627
This United Airlines deal was found by Cheapflights users on 12/25. 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.
Sat 12/274:38 pmBTV - ONT
1 stop8h 47mUnited Airlines
Thu 1/16:39 pmONT - BTV
2 stops11h 36mUnited Airlines
Deal found 12/25$634
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/314:38 pmBTV - ONT
1 stop8h 47mUnited Airlines
Thu 1/16:39 pmONT - BTV
2 stops11h 36mUnited Airlines
Deal found 12/25$689
This Delta deal was found by Cheapflights users on 12/25. 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.
Mon 12/296:15 amBTV - ONT
2 stops12h 57mDelta
Tue 1/612:41 pmONT - BTV
1 stop8h 14mDelta
Deal found 12/25$754
This Delta deal was found by Cheapflights users on 12/25. 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.
Mon 12/296:15 amBTV - ONT
2 stops12h 57mDelta
Mon 1/512:41 pmONT - BTV
1 stop8h 14mDelta
Deal found 12/25$756
This Delta deal was found by Cheapflights users on 12/25. 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 12/306:15 amBTV - ONT
2 stops12h 57mDelta
Tue 1/612:41 pmONT - BTV
1 stop8h 14mDelta
Deal found 12/25$847
This Delta deal was found by Cheapflights users on 12/25. 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 12/306:15 amBTV - ONT
2 stops12h 57mDelta
Mon 1/512:41 pmONT - BTV
1 stop8h 14mDelta
Deal found 12/25$849
This Delta deal was found by Cheapflights users on 12/25. 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.
Mon 12/296:15 amBTV - ONT
2 stops12h 57mDelta
Thu 1/111:15 amONT - BTV
1 stop9h 02mDelta
Deal found 12/25$891
This Delta deal was found by Cheapflights users on 12/25. 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.
Mon 12/296:15 amBTV - ONT
2 stops12h 57mDelta
Wed 12/3111:15 amONT - BTV
1 stop9h 02mDelta
Deal found 12/25$934
This United Airlines deal was found by Cheapflights users on 12/25. 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.
Sat 12/274:38 pmBTV - ONT
1 stop8h 47mUnited Airlines
Sat 1/311:59 pmONT - BTV
1 stop7h 23mUnited Airlines
Deal found 12/25$1,024

Find 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 December 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$343
(Delta)

Popular in

December

Cheapest in

July

Average price

$612
Provider with most accurate pricing for Burlington-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Burlington-Ontario flights.
Search Deals
From Burlington to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 27, 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

Tue 3/17

5:50 am-11:40 am

1 stop8h 50m

Ontario

Tue 3/24

12:50 pm-11:59 pm

1 stop8h 09m

$343

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Sun 3/15

5:50 am-11:40 am

1 stop8h 50m

Ontario

Tue 3/24

12:50 pm-11:59 pm

1 stop8h 09m

$343

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Sat 1/24

6:12 am-12:47 pm

2 stops9h 35m

Ontario

Tue 1/27

6:00 am-9:29 pm

2 stops12h 29m

$427

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 3/18

4:55 pm-10:25 pm

1 stop8h 30m

Ontario

Mon 3/23

11:59 pm-2:18 pm

2 stops11h 19m

$428

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Fri 1/16

12:31 pm-10:13 pm

2 stops12h 42m

Ontario

Sat 1/24

6:27 am-10:58 pm

2 stops13h 31m

$491

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Thu 5/21

4:48 pm-10:26 pm

1 stop8h 38m

Ontario

Tue 5/26

6:30 pm-9:34 am

2 stops12h 04m

$538

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Fri 5/15

6:30 am-6:15 pm

2 stops14h 45m

Ontario

Sun 5/17

10:59 pm-3:18 pm

2 stops13h 19m

$589

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 1/7

5:22 am-11:31 am

1 stop9h 09m

$423

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 1/6

1:25 pm-10:38 pm

2 stops12h 13m

$428

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Mon 1/5

5:05 pm-9:05 pm

2 stops31h 00m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 15 results
1
2

Compare providers for flights from Burlington to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Burlington to Ontario in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Burlington-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Burlington-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Burlington-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Burlington-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Burlington-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, April is the cheapest month in which you can book a flight from Burlington to Ontario (average of $272). Flying from Burlington to Ontario in June is currently the most expensive (average of $386). 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 December 27, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines 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
7.9
Good
8,018 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

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
7.9
Good
8,018 reviews
Delta
7.9
Good
8,018 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

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
United Airlines
7.4
Good
9,116 reviews
Delta
7.9
Good
8,018 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

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
American Airlines
7.2
Good
11,067 reviews
Delta
7.9
Good
8,018 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

7.9

Boarding

8.1

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 8h 50m. Delta provides one of the quickest options available for as low as $343. 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 are the cheapest airlines flying from Burlington to Ontario round-trip?

    United Airlines, at $319, was found to be the cheapest airline from Burlington to Ontario.Alternate airlines to your destination round-trip include American Airlines and Delta. United Airlines is priced at 31% 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, April is the cheapest month in which you can book a flight from Burlington to Ontario (average of $272). Flying from Burlington to Ontario in June is currently the most expensive (average of $386). 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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Top 3 airlines flying from Burlington to Ontario

Discover the top 3 airlines 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 December 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$319Average$489FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$349Average$574FlexibilityNo cancel feeOn-time71%
DeltaCheapest$369Average$440FlexibilityNo cancel feeOn-timeN/A

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