Ontario

$149+ Cheap flights from Connecticut to Ontario (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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — ONT
Jul 22 — Jul 291
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Cheap flight deals from Connecticut to Ontario

Cheapest flights from Connecticut to Ontario
Explore the most affordable flight options available from Connecticut to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 22, 2026.

This Frontier deal was found by Cheapflights users on 6/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:55 pm
LGA
-
ONT
1 stop12h 42m
Frontier
Wed 8/58:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/22$313
This Frontier deal was found by Cheapflights users on 6/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1610:55 pm
LGA
-
ONT
1 stop12h 42m
Frontier
Fri 7/248:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/22$314
This HOPEGOO deal was found by Cheapflights users on 6/18. 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 HOPEGOO is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:55 pm
LGA
-
ONT
1 stop12h 42m
Frontier
Sat 7/118:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/18$316
This American Airlines deal was found by Cheapflights users on 6/21. 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 8/1911:31 am
JFK
-
ONT
1 stop10h 16m
American Airlines
Sun 8/238:01 pm
ONT
-
JFK
1 stop6h 59m
American Airlines
Deal found 6/21$317
This American Airlines deal was found by Cheapflights users on 6/21. 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 7/146:47 pm
LGA
-
ONT
1 stop8h 12m
American Airlines
Mon 7/2011:59 pm
ONT
-
LGA
1 stop7h 31m
American Airlines
Deal found 6/21$317
This Booking.com deal was found by Cheapflights users on 6/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:55 pm
LGA
-
ONT
1 stop12h 46m
Frontier
Mon 8/178:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/19$318
This Cheapflightsfares deal was found by Cheapflights users on 6/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:30 pm
JFK
-
ONT
Nonstop6h 05m
JetBlue
Sat 8/2211:24 pm
ONT
-
JFK
Nonstop5h 21m
JetBlue
Deal found 6/19$319
This Kissandfly.com deal was found by Cheapflights users on 6/18. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:55 pm
LGA
-
ONT
1 stop12h 42m
Frontier
Fri 8/78:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/18$319
This Booking.com deal was found by Cheapflights users on 6/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1710:55 pm
LGA
-
ONT
1 stop12h 42m
Frontier
Sat 8/18:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/21$320
This Super.com deal was found by Cheapflights users on 6/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:30 pm
JFK
-
ONT
Nonstop6h 05m
JetBlue
Sat 9/511:24 pm
ONT
-
JFK
Nonstop5h 21m
JetBlue
Deal found 6/18$321
This HOPEGOO deal was found by Cheapflights users on 6/17. 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 HOPEGOO is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:55 pm
LGA
-
ONT
1 stop12h 42m
Frontier
Thu 7/238:17 am
ONT
-
LGA
1 stop10h 43m
Frontier
Deal found 6/17$321
This American Airlines deal was found by Cheapflights users on 6/21. 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 7/38:15 am
JFK
-
ONT
1 stop8h 07m
American Airlines
Wed 7/291:11 pm
ONT
-
JFK
1 stop7h 47m
American Airlines
Deal found 6/21$322

Find flight deals from Connecticut to Ontario

Keep the following information in mind while searching for Connecticut to Ontario flight deals. Data was last updated June 22, 2026.

Round-trip from

$314
(Frontier)

One-way from

$149
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$478
From Connecticut to Ontario
One-way flight from Connecticut to Ontario
Highest demand for flights based on searches. 8% potential increase in price ($35 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Connecticut 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 June 22, 2026.
Use the filters below to find and compare flights from Connecticut to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Mon 8/17

7:30 pm-10:38 pm

Nonstop6h 08m

Ontario

Tue 8/18

11:59 pm-8:20 am

Nonstop5h 21m

$327

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Mon 8/31

7:30 pm-10:35 pm

Nonstop6h 05m

Ontario

Sun 9/6

11:50 pm-8:11 am

Nonstop5h 21m

$372

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 7/29

7:29 pm-10:35 pm

Nonstop6h 06m

Ontario

Mon 8/10

11:50 pm-8:11 am

Nonstop5h 21m

$372

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Fri 8/7

7:30 pm-10:35 pm

Nonstop6h 05m

Ontario

Fri 8/14

11:50 pm-8:11 am

Nonstop5h 21m

$372

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Sat 10/10

4:40 pm-9:20 pm

1 stop7h 40m

Ontario

Tue 10/20

11:55 pm-12:30 pm

2 stops9h 35m

$373

ProvidenceOntario

PVD - ONT

PVDONT

Providence-TFGreen

Tue 8/25

6:00 am-10:42 am

1 stop7h 42m

Ontario

Fri 8/28

12:00 pm-11:59 pm

1 stop8h 59m

$389

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Fri 8/14

7:30 pm-10:35 pm

Nonstop6h 05m

Ontario

Thu 8/20

11:50 pm-8:11 am

Nonstop5h 21m

$392

ProvidenceOntario

PVD - ONT

PVDONT

Providence-TFGreen

Sat 7/4

12:40 pm-5:05 pm

1 stop7h 25m

Ontario

Mon 7/13

11:55 pm-12:40 pm

1 stop9h 45m

$396

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 8/26

11:20 am-8:01 pm

2 stops11h 41m

Ontario

Mon 8/31

7:13 pm-12:23 pm

2 stops14h 10m

$397

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Mon 8/3

7:30 pm-10:36 pm

Nonstop6h 06m

Ontario

Mon 8/10

11:50 pm-8:11 am

Nonstop5h 21m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Connecticut to Ontario

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

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

Currently, October is the cheapest month in which you can book a flight from Connecticut to Ontario (average of $264). Flying from Connecticut to Ontario in June is currently the most expensive (average of $436). 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.

How much does it cost to fly round-trip from Connecticut to Ontario?

Related info for your journey

Find useful and relevant information for your journey from Connecticut to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Ontario from Connecticut?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Connecticut.

  • How long is the flight from Connecticut to Ontario?

    Airlines like JetBlue, Southwest, and Delta fly from Connecticut to Ontario in about 6h 08m. The time it takes to get you to your destination can typically vary by up to 1h 34m. The distance from Connecticut to Ontario is about 2422 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Connecticut to Ontario one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $155. However, be on the lookout for offers from Delta and Southwest, as they are both options that can get you from Connecticut to Ontario for a low price.

  • What are the most popular routes from Connecticut to Ontario?

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Connecticut to Ontario (average of $264). Flying from Connecticut to Ontario in June is currently the most expensive (average of $436). 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 Connecticut to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Connecticut to Ontario

Discover the top 4 airlines that operate flights from Connecticut 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 June 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$312Average$477FlexibilityNo cancel feeOn-time63%
DeltaCheapest$316Average$477FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$378Average$451FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$380Average$538FlexibilityNo cancel feeOn-time69%

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