$182+ Cheap flights from Connecticut to Ontario (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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — ONT
Oct 25 — Nov 11
Round-trip
1 adult, Economy
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Find cheap flights from Connecticut to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Connecticut to Ontario
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Best
Last-minute
One-way
Cheapest flights from Connecticut to OntarioExplore 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 September 25, 2026.
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 September 25, 2026.
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Sat 10/246:16 am -
1 stop8h 37m
Sat 10/3111:45 pm -
1 stop7h 21m
Deal found 9/24![American Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 9/24. 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.
Sat 12/51:30 pm -
1 stop9h 25m
Sat 12/1212:20 pm -
1 stop8h 55m
Deal found 9/24![Delta logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/45:35 am -
2 stops10h 56m
Mon 11/910:30 pm -
1 stop8h 52m
Deal found 9/22![American Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 9/21. 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 11/311:12 am -
2 stops9h 58m
Mon 11/911:59 pm -
2 stops11h 04m
Deal found 9/21![American Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:28 pm -
1 stop8h 10m
Mon 12/711:08 pm -
1 stop8h 18m
Deal found 9/21![Delta logo]()
$375
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:21 pm -
1 stop8h 38m
Tue 10/2011:59 pm -
2 stops11h 50m
Deal found 9/22![American Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:25 pm -
2 stops10h 25m
Fri 10/306:55 pm -
2 stops10h 00m
Deal found 9/22![Southwest logo]()
$385
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/235:21 pm -
1 stop8h 38m
Fri 10/3012:43 pm -
1 stop7h 47m
Deal found 9/24![American Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:20 pm -
1 stop7h 49m
Sat 10/177:07 am -
1 stop7h 52m
Deal found 9/22![Delta logo]()
$411
This Delta deal was found by Cheapflights users on 9/24. 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.
Sun 12/61:28 pm -
1 stop8h 10m
Sat 12/1212:20 pm -
1 stop8h 55m
Deal found 9/24![Delta logo]()
$415
Best flights from Connecticut to OntarioDiscover carefully curated flight deals from Connecticut to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
Discover carefully curated flight deals from Connecticut to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2026.
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:25 pm -
2 stops10h 25m
Fri 10/306:55 pm -
2 stops10h 00m
Deal found 9/22![Southwest logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Thu 10/296:00 am -
2 stops9h 30m
Tue 11/35:00 am -
2 stops9h 54m
Deal found 9/20![United Airlines logo]()
$515
This Delta deal was found by Cheapflights users on 9/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am -
1 stop8h 06m
Sun 11/17:07 am -
1 stop7h 52m
Deal found 9/21![Delta logo]()
$709
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:10 pm -
1 stop9h 35m
Mon 10/1911:55 pm -
1 stop8h 00m
Deal found 9/24![Southwest logo]()
$522
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:20 pm -
1 stop8h 31m
Sun 11/15:00 am -
1 stop7h 56m
Deal found 9/21![United Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/303:21 pm -
1 stop8h 30m
Sun 11/15:00 am -
1 stop7h 56m
Deal found 9/24![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/257:35 am -
2 stops15h 40m
Sat 12/55:00 am -
1 stop7h 59m
Deal found 9/24![United Airlines logo]()
$617
This Southwest deal was found by Cheapflights users on 9/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:25 pm -
2 stops10h 30m
Mon 10/1211:55 pm -
1 stop8h 00m
Deal found 9/23![Southwest logo]()
$682
This United Airlines deal was found by Cheapflights users on 9/23. 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 11/133:21 pm -
1 stop8h 30m
Sun 11/155:00 am -
1 stop7h 56m
Deal found 9/23![United Airlines logo]()
$627
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Mon 10/265:02 pm -
2 stops25h 31m
Fri 10/305:00 am -
2 stops13h 47m
Deal found 9/20![United Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:35 am -
2 stops15h 15m
Mon 11/301:29 pm -
1 stop7h 15m
Deal found 9/21![United Airlines logo]()
$728
Last-minute flights from Connecticut to OntarioDiscover last-minute flight deals from Connecticut to Ontario. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from Connecticut to Ontario. Data last updated September 25, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:25 pm -
2 stops11h 00m
Tue 10/2011:55 pm -
1 stop8h 00m
Deal found 9/21![Southwest logo]()
$450
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:20 pm -
1 stop7h 49m
Sat 10/177:07 am -
1 stop7h 52m
Deal found 9/22![Delta logo]()
$411
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:20 pm -
1 stop7h 49m
Mon 10/1911:08 pm -
1 stop8h 11m
Deal found 9/22![Delta logo]()
$423
This American Airlines deal was found by Cheapflights users on 9/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:21 pm -
1 stop8h 38m
Tue 10/2011:59 pm -
1 stop9h 03m
Deal found 9/22![American Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/235:21 pm -
1 stop8h 38m
Fri 10/3012:43 pm -
1 stop7h 47m
Deal found 9/24![American Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:45 pm -
2 stops10h 40m
Fri 10/306:55 pm -
2 stops10h 00m
Deal found 9/24![Southwest logo]()
$433
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Sat 10/246:16 am -
1 stop8h 37m
Sat 10/3111:45 pm -
1 stop7h 21m
Deal found 9/24![American Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:25 pm -
2 stops10h 25m
Fri 10/306:55 pm -
2 stops10h 00m
Deal found 9/22![Southwest logo]()
$385
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Thu 10/296:16 pm -
1 stop8h 36m
Wed 11/49:50 am -
2 stops10h 51m
Deal found 9/20![American Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 9/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:45 pm -
2 stops10h 40m
Wed 11/46:25 pm -
2 stops10h 25m
Deal found 9/20![Southwest logo]()
$417
One-way flights from Connecticut to OntarioSearch for one-way flight options from Connecticut to Ontario. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
Search for one-way flight options from Connecticut to Ontario. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This Delta deal was found by Cheapflights users on 9/24. 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 10/286:00 am -
1 stop8h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$182
This United Airlines deal was found by Cheapflights users on 9/20. 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.
Sat 10/176:00 am -
2 stops12h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![United Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:40 pm -
1 stop9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Southwest logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:16 pm -
2 stops22h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:04 pm -
3 stops24h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$204
This Southwest deal was found by Cheapflights users on 9/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:30 pm -
2 stops10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Southwest logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:05 am -
1 stop27h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$221
This Mytrip deal was found by Cheapflights users on 9/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:16 pm -
2 stops28h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:16 pm -
2 stops35h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Frontier logo]()
$226
This Mytrip deal was found by Cheapflights users on 9/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:15 pm -
2 stops22h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$229
This Delta deal was found by Cheapflights users on 9/20. 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.
Fri 10/232:00 pm -
1 stop10h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Delta logo]()
$230
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 September 25, 2026.
Round-trip from | $362 (American Airlines) |
|---|---|
One-way from | $182 (Delta) |
Popular in | June |
Cheapest in | January |
Average price | $374 |
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 7,457,451 searches. Data last updated September 25, 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
Cheapest round-trip
Quickest round-trip
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Wed 10/28
6:00 am-11:06 am
1 stop8h 06m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$182
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Mon 11/2
11:50 am-7:50 pm
1 stop11h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$219
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Wed 11/4
9:37 am-8:15 pm
2 stops13h 38m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$252
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Sat 10/17
5:03 pm-10:49 pm
1 stop8h 46m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$259
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Wed 10/7
3:10 pm-9:45 pm
1 stop9h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$301
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Tue 9/29
12:40 pm-7:40 pm
2 stops10h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$306
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Wed 10/7
6:00 am-11:06 am
1 stop8h 06m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$334
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Tue 10/20
6:05 am-5:41 pm
2 stops14h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$355
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Tue 9/29
5:03 pm-10:49 pm
1 stop8h 46m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$366
HartfordOntario
BDL Hartford Bradley Intl - ONT Ontario
BDLONT
Hartford Bradley Intl
Tue 10/27
1:25 pm-8:50 pm
2 stops10h 25m
Ontario
Fri 10/30
6:55 pm-7:55 am
2 stops10h 00m
$385
Showing 1-10 of 20 resultsSorted by cheapest first
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.
BDL-ONT
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
USCT-ONT
BDL-ONT
What is the cheapest month to book a flight from Connecticut to Ontario?
Currently, May is the cheapest month in which you can book a flight from Connecticut to Ontario (average of $392). Flying from Connecticut to Ontario in September is currently the most expensive (average of $621). 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?
Airfare is below average for this route at the moment.
Connecticut to Ontario flights typically cost between $476 and $704 in October.The cheapest round-trip price found within the last 5 days was $362 on American Airlines (Oct 24-Oct 31).
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Connecticut to Ontario by cabin class
Find flights from Connecticut to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
Connecticut and Ontario flights
Browse other Connecticut and Ontario flight options. Last updated on September 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Connecticut to Ontario flights
Consider these flights traveling from Connecticut to Ontario.
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 7,457,451 searches. Data last updated September 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$332 | Average$487 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$349 | Average$664 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$380 | Average$531 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$390 | Average$487 | FlexibilityNo cancel fee | On-time71% |