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$90+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$180
(Frontier)

One-way from

$90
(Trip.com)
Provider with most accurate pricing for Springfield (SFY)-Los Angeles flight deals.
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From Connecticut to Ontario
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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 February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/20. 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 3/67:59 amJFK - ONT
1 stop10h 05mFrontier
Sun 3/162:48 pmONT - JFK
1 stop12h 42mFrontier
Deal found 2/20$190
This Frontier deal was found by Cheapflights users on 2/20. 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 4/310:59 pmLGA - ONT
1 stop12h 20mFrontier
Sun 4/68:29 amONT - LGA
1 stop10h 31mFrontier
Deal found 2/20$190
This Kissandfly.com deal was found by Cheapflights users on 2/18. 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 2/274:00 pmJFK - ONT
2 stops20h 34mMultiple Airlines
Sat 3/18:29 pmONT - JFK
1 stop7h 01mMultiple Airlines
Deal found 2/18$253
This JetBlue deal was found by Cheapflights users on 2/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/26:10 pmJFK - ONT
Nonstop6h 12mJetBlue
Mon 5/510:40 pmONT - JFK
Nonstop5h 20mJetBlue
Deal found 2/19$257
This Delta deal was found by Cheapflights users on 2/20. 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 4/166:00 amJFK - ONT
1 stop7h 57mDelta
Tue 4/2910:15 pmONT - JFK
1 stop8h 33mDelta
Deal found 2/20$277
This American Airlines deal was found by Cheapflights users on 2/20. 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 4/225:06 pmLGA - ONT
1 stop8h 04mAmerican Airlines
Wed 5/146:01 amONT - LGA
1 stop7h 03mAmerican Airlines
Deal found 2/20$277
This American Airlines deal was found by Cheapflights users on 2/20. 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 4/225:54 amEWR - ONT
1 stop8h 52mAmerican Airlines
Tue 5/136:02 amONT - EWR
1 stop7h 27mAmerican Airlines
Deal found 2/20$277
This United Airlines deal was found by Cheapflights users on 2/20. 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 5/22:00 pmLGA - ONT
1 stop11h 00mUnited Airlines
Tue 5/66:08 amONT - LGA
1 stop7h 24mUnited Airlines
Deal found 2/20$278
This United Airlines deal was found by Cheapflights users on 2/19. 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 4/25:59 amEWR - ONT
1 stop9h 39mUnited Airlines
Wed 4/26:39 pmONT - EWR
1 stop9h 41mUnited Airlines
Deal found 2/19$283
This Delta deal was found by Cheapflights users on 2/20. 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 3/186:45 pmEWR - ONT
1 stop8h 11mDelta
Tue 3/255:15 pmONT - EWR
1 stop9h 27mDelta
Deal found 2/20$287
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/188:05 amJFK - ONT
1 stop8h 55mAmerican Airlines
Tue 3/259:32 amONT - JFK
2 stops8h 58mAmerican Airlines
Deal found 2/20$292
This Delta deal was found by Cheapflights users on 2/20. 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 4/11:55 pmLGA - ONT
2 stops13h 01mDelta
Mon 4/712:42 pmONT - LGA
1 stop7h 58mDelta
Deal found 2/20$292

Find flights from Connecticut to Ontario within your budget

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 February 20, 2025.

Fly from

Connecticut

Fly to

Ontario

Route

Depart

Return

Price

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 5/27

6:30 am-2:48 pm

1 stop11h 18m

Ontario

Thu 5/29

3:42 pm-5:30 am

1 stop10h 48m

$180

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 4/3

10:59 pm-8:19 am

1 stop12h 20m

Ontario

Sun 4/6

8:29 am-10:00 pm

1 stop10h 31m

$190

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Fri 5/2

6:10 pm-9:22 pm

Nonstop6h 12m

Ontario

Mon 5/5

10:40 pm-7:00 am

Nonstop5h 20m

$257

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/16

6:00 am-10:57 am

1 stop7h 57m

Ontario

Tue 4/29

10:15 pm-9:48 am

1 stop8h 33m

$277

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 4/22

5:06 pm-10:10 pm

1 stop8h 04m

Ontario

Wed 5/14

6:01 am-4:04 pm

1 stop7h 03m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 4/22

5:54 am-11:46 am

1 stop8h 52m

Ontario

Tue 5/13

6:02 am-4:29 pm

1 stop7h 27m

$277

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 5/2

2:00 pm-10:00 pm

1 stop11h 00m

Ontario

Tue 5/6

6:08 am-4:32 pm

1 stop7h 24m

$278

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/18

4:01 pm-10:43 pm

1 stop9h 42m

Ontario

Tue 3/25

5:15 pm-5:42 am

1 stop9h 27m

$287

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 3/18

8:05 am-2:00 pm

1 stop8h 55m

Ontario

Tue 3/25

9:32 am-9:30 pm

2 stops8h 58m

$292

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 4/1

1:55 pm-11:56 pm

2 stops13h 01m

Ontario

Mon 4/7

12:42 pm-11:40 pm

1 stop7h 58m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 56 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.

Travel insights for flights from Connecticut to Ontario

Get recent, data-driven insights about flights from Connecticut to Ontario including ideal travel times, pricing trends, and more.

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 $315). 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 February 20, 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 $90. However, be on the lookout for offers from JetBlue and Hawaiian 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 $315). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$336Average$547FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$342Average$615FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$343Average$478FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$380Average$598FlexibilityNo cancel feeOn-time69%
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