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$120+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — ONT
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Connecticut to Ontario

Keep the following information in mind while searching for Connecticut to Ontario flight deals. Data was last updated mayo 1, 2025.

Round-trip from

$206
(Mytrip)

One-way from

$120
(Booking.com)
From Connecticut to Ontario
Search Deals
One-way flight from Connecticut to Ontario
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Find 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 mayo 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
mié. 5/76:59 amJFK - ONT
1 stop8h 09mFrontier
jue. 5/156:35 pmONT - JFK
1 stop7h 55mFrontier
Deal found 4/29$205
This Booking.com deal was found by Cheapflights users on 4/29. 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.
mié. 5/2810:55 pmLGA - ONT
1 stop13h 20mFrontier
lun. 6/212:59 amONT - LGA
1 stop18h 11mFrontier
Deal found 4/29$208
This JetBlue deal was found by Cheapflights users on 4/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/166:35 pmJFK - ONT
Nonstop6h 06mJetBlue
mar. 9/2311:00 pmONT - JFK
Nonstop5h 23mJetBlue
Deal found 4/29$257
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/167:19 amEWR - ONT
1 stop9h 50mAlaska Airlines
mar. 9/233:04 pmONT - EWR
1 stop11h 55mAlaska Airlines
Deal found 4/30$262
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/167:29 amJFK - ONT
1 stop9h 40mAlaska Airlines
lun. 9/227:22 pmONT - JFK
1 stop8h 44mAlaska Airlines
Deal found 4/29$269
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/167:19 amEWR - ONT
1 stop9h 50mHawaiian Airlines
mar. 9/233:04 pmONT - EWR
1 stop11h 55mHawaiian Airlines
Deal found 4/30$276
This Delta deal was found by Cheapflights users on 4/29. 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.
mar. 9/162:00 pmLGA - ONT
1 stop8h 42mDelta
sáb. 9/2710:59 pmONT - LGA
1 stop7h 45mDelta
Deal found 4/29$277
This United Airlines deal was found by Cheapflights users on 4/30. 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.
dom. 5/256:00 amEWR - ONT
1 stop9h 31mUnited Airlines
mié. 9/241:15 pmONT - EWR
1 stop7h 09mUnited Airlines
Deal found 4/30$282
This American Airlines deal was found by Cheapflights users on 4/30. 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.
mié. 5/211:59 pmLGA - ONT
1 stop10h 06mAmerican Airlines
mar. 5/2710:40 pmONT - LGA
1 stop10h 19mAmerican Airlines
Deal found 4/30$287
This Delta deal was found by Cheapflights users on 4/30. 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.
mié. 5/216:00 amEWR - ONT
1 stop8h 08mDelta
sáb. 5/311:10 pmONT - EWR
1 stop8h 00mDelta
Deal found 4/30$287
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/37:29 amJFK - ONT
1 stop11h 21mHawaiian Airlines
mar. 6/104:45 pmONT - JFK
1 stop10h 24mHawaiian Airlines
Deal found 4/30$291
This American Airlines deal was found by Cheapflights users on 4/30. 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.
dom. 5/2510:20 amJFK - ONT
1 stop8h 29mAmerican Airlines
mié. 9/248:43 amONT - JFK
1 stop9h 46mAmerican Airlines
Deal found 4/30$292

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 mayo 1, 2025.
Use the filters below to find and compare flights from Connecticut to Ontario that are best for you.

Fly from

Connecticut

Fly to

Ontario

Route

Depart

Return

Price

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mié. 5/28

6:59 am-11:43 am

1 stop7h 44m

Ontario

mar. 6/3

6:30 am-5:30 am

1 stop20h 00m

$206

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

mié. 5/28

10:55 pm-9:15 am

1 stop13h 20m

Ontario

lun. 6/2

12:59 am-10:10 pm

1 stop18h 11m

$208

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mar. 9/16

6:35 pm-9:41 pm

Nonstop6h 06m

Ontario

sáb. 9/20

11:00 pm-7:23 am

Nonstop5h 23m

$257

NewarkOntario

EWR - ONT

EWRONT

Newark

mar. 9/16

5:30 pm-11:59 pm

1 stop9h 29m

Ontario

mar. 9/23

3:04 pm-5:59 am

1 stop11h 55m

$262

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

mar. 9/16

7:29 am-2:09 pm

1 stop9h 40m

Ontario

mar. 9/16

7:22 pm-7:06 am

1 stop8h 44m

$269

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

mar. 9/16

2:00 pm-7:42 pm

1 stop8h 42m

Ontario

sáb. 9/27

10:59 pm-9:44 am

1 stop7h 45m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

sáb. 8/30

6:00 am-11:07 am

1 stop8h 07m

Ontario

mié. 9/3

10:59 pm-9:36 am

1 stop7h 37m

$282

NewarkOntario

EWR - ONT

EWRONT

Newark

mar. 9/16

7:19 am-2:09 pm

1 stop9h 50m

Ontario

vie. 9/26

3:04 pm-5:59 am

1 stop11h 55m

$286

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

mié. 5/21

1:59 pm-9:05 pm

1 stop10h 06m

Ontario

mar. 5/27

10:40 pm-11:59 am

1 stop10h 19m

$287

NewarkOntario

EWR - ONT

EWRONT

Newark

dom. 5/25

6:54 am-11:50 am

1 stop7h 56m

Ontario

mar. 6/3

7:25 pm-6:00 am

1 stop7h 35m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 54 results
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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, August is the cheapest month in which you can book a flight from Connecticut to Ontario (average of $246). Flying from Connecticut 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.

What is the cheapest time of day to fly from CT to ONT?

Find hourly flight availability from Connecticut to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 1, 2025.

When flying from Connecticut to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 mayo 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Connecticut to Ontario to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,408 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from Alaska Airlines and American Airlines, 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?

    Most travelers choose New York John F Kennedy Intl - Ontario, Newark - Ontario or New York LaGuardia - Ontario when deciding on the best route 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, August is the cheapest month in which you can book a flight from Connecticut to Ontario (average of $246). Flying from Connecticut 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 Connecticut to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$306Average$530FlexibilityNo cancel feeOn-time71%
DeltaCheapest$307Average$536FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$343Average$478FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$380Average$531FlexibilityNo cancel feeOn-time69%

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