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$337+ Cheap flights from Burlington, VT 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BTV — ONT
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
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 March 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/6. 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 8/2512:45 pm
BTV
-
ONT
1 stop8h 34m
United Airlines
Tue 9/17:00 am
ONT
-
BTV
1 stop7h 50m
United Airlines
Deal found 3/6$337
This Delta deal was found by Cheapflights users on 3/6. 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 8/186:30 am
BTV
-
ONT
2 stops14h 31m
Delta
Tue 8/2512:00 pm
ONT
-
BTV
1 stop8h 48m
Delta
Deal found 3/6$342
This American Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 8/46:00 am
BTV
-
ONT
2 stops10h 32m
American Airlines
Tue 8/1111:59 pm
ONT
-
BTV
2 stops13h 33m
American Airlines
Deal found 3/6$347
This United Airlines deal was found by Cheapflights users on 3/6. 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 8/44:42 pm
BTV
-
ONT
1 stop9h 04m
United Airlines
Tue 8/115:00 am
ONT
-
BTV
1 stop7h 47m
United Airlines
Deal found 3/6$348
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Mon 5/45:00 pm
BTV
-
ONT
1 stop8h 35m
United Airlines
Mon 5/116:59 pm
ONT
-
BTV
2 stops11h 15m
United Airlines
Deal found 3/6$354
This United Airlines deal was found by Cheapflights users on 3/6. 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 8/1812:45 pm
BTV
-
ONT
1 stop8h 34m
United Airlines
Tue 8/257:00 am
ONT
-
BTV
1 stop7h 50m
United Airlines
Deal found 3/6$356
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Mon 6/14:42 pm
BTV
-
ONT
1 stop9h 04m
United Airlines
Mon 6/86:30 pm
ONT
-
BTV
2 stops12h 49m
United Airlines
Deal found 3/6$362
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/235:00 pm
BTV
-
ONT
1 stop8h 31m
United Airlines
Mon 4/276:49 pm
ONT
-
BTV
2 stops12h 16m
United Airlines
Deal found 3/10$374
This United Airlines deal was found by Cheapflights users on 3/6. 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 7/214:42 pm
BTV
-
ONT
1 stop9h 04m
United Airlines
Tue 7/285:00 am
ONT
-
BTV
2 stops13h 45m
United Airlines
Deal found 3/6$392
This United Airlines deal was found by Cheapflights users on 3/6. 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 7/144:42 pm
BTV
-
ONT
1 stop9h 04m
United Airlines
Tue 7/216:30 am
ONT
-
BTV
2 stops13h 58m
United Airlines
Deal found 3/6$397
This Delta deal was found by Cheapflights users on 3/8. 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 5/65:40 am
BTV
-
ONT
1 stop8h 56m
Delta
Sun 5/1012:08 pm
ONT
-
BTV
1 stop8h 36m
Delta
Deal found 3/8$418

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$337
(United Airlines)

Popular in

March

Cheapest in

July

Average price

$621
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. 11% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 11, 2026.
Use the filters below to find and compare flights from Burlington to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 8/18

12:45 pm-6:19 pm

1 stop8h 34m

Ontario

Tue 8/25

7:00 am-5:50 pm

1 stop7h 50m

$356

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Mon 6/1

4:42 pm-10:46 pm

1 stop9h 04m

Ontario

Mon 6/8

6:30 pm-10:19 am

2 stops12h 49m

$362

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 7/28

6:30 am-6:15 pm

2 stops14h 45m

Ontario

Tue 8/4

7:00 am-11:27 pm

2 stops13h 27m

$428

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Sat 5/2

3:47 pm-8:36 pm

1 stop7h 49m

Ontario

Tue 5/5

6:59 pm-10:00 am

2 stops12h 01m

$442

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Fri 5/22

4:42 pm-10:46 pm

1 stop9h 04m

Ontario

Tue 5/26

6:30 pm-10:24 am

2 stops12h 54m

$508
Quickest round-trip

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Fri 5/15

5:00 pm-10:35 pm

1 stop8h 35m

Ontario

Sun 5/17

5:00 am-3:46 pm

1 stop7h 46m

$559
Cheapest one-way

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 6/10

4:42 pm-10:46 pm

1 stop9h 04m

$423
Quickest one-way

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 3/25

4:55 pm-10:18 pm

1 stop8h 23m

$433

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Wed 3/18

5:35 am-11:47 am

1 stop9h 12m

$436

BurlingtonOntario

BTV - ONT

BTVONT

Burlington

Tue 3/17

5:35 am-11:47 am

1 stop9h 12m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 13 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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, Vermont-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Burlington, Vermont-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Burlington, Vermont-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Burlington, Vermont-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub 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, Vermont-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, Vermont to Ontario?

Currently, April is the cheapest month in which you can book a flight from Burlington, Vermont to Ontario (average of $249). Flying from Burlington, Vermont to Ontario in May is currently the most expensive (average of $336). 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 March 11, 2026.
Peruse reviews from past customers who have flown with Delta and United 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
8,278 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Crew

8.5

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
8,278 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Crew

8.5

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
9,413 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Crew

8.5

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, Vermont to Ontario?

    There are many flights that can get you from Burlington, Vermont to Ontario in 8h 34m. Fly via United Airlines or Delta to get the fastest option. The distance from Burlington, Vermont 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, Vermont to Ontario round-trip?

    Flying on Delta is currently your cheapest option to Ontario, with prices starting at $314. Another option worth looking into is United Airlines, starting at $319 round trip. You may be able to fly from Burlington, Vermont to Ontario for 37% less than the average price by searching for these airlines.

  • 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, Vermont to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Burlington, Vermont to Ontario (average of $249). Flying from Burlington, Vermont to Ontario in May is currently the most expensive (average of $336). 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

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Top 2 airlines flying from Burlington to Ontario

Discover the top 2 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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$314Average$419FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$319Average$489FlexibilityNo cancel feeOn-time69%

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