ONT

$100 Find Cheap Flights from Massachusetts to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$248
Overall average: $339
Alaska Airlines
Thu 1/22Thu 1/29
BOS - ONT • 1 stop
Cheapest one-way
$100
Typical prices: $173-$241
Frontier
Sun 1/11
BOS - ONT • 2 stops
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Flight Deals
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Flight Deals

Cheap Flights from Massachusetts to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Massachusetts to Ontario

Thu, Jan 22 - Thu, Jan 29
Alaska Airlines Logo
7:00 am - 3:08 pmBOS-ONT
11h 08m1 stop
Alaska Airlines Logo
11:53 am - 11:54 pmONT-BOS
9h 01m1 stop
$248Alaska Airlines
Find Deal
Tue, Jan 13 - Sat, Jan 24
Alaska Airlines Logo
7:00 am - 3:08 pmBOS-ONT
11h 08m1 stop
Alaska Airlines Logo
11:53 am - 11:54 pmONT-BOS
9h 01m1 stop
$250Alaska Airlines
Find Deal
Thu, Jan 8 - Wed, Jan 14
American Airlines Logo
4:52 pm - 10:13 pmBOS-ONT
8h 21m1 stop
American Airlines Logo
12:57 pm - 11:12 pmONT-BOS
7h 15m1 stop
$251American Airlines
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Tue, Jan 13 - Fri, Jan 16
United Airlines Logo
12:08 pm - 8:58 pmBOS-ONT
11h 50m2 stops
United Airlines Logo
1:24 pm - 11:46 pmONT-BOS
7h 22m1 stop
$256United Airlines
Find Deal
Tue, Jan 13 - Fri, Jan 16
United Airlines Logo
6:00 am - 12:47 pmBOS-ONT
9h 47m2 stops
United Airlines Logo
6:39 pm - 9:14 amONT-BOS
11h 35m2 stops
$261United Airlines
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Mon, Dec 8 - Thu, Dec 11
American Airlines Logo
2:08 pm - 10:00 pmBOS-ONT
10h 52m2 stops
American Airlines Logo
12:55 pm - 11:33 pmONT-BOS
7h 38m1 stop
$276American Airlines
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Thu, Dec 18 - Tue, Jan 13
Multiple Airlines Logo
6:00 am - 5:22 pmBDL-ONT
14h 22m1 stop
Multiple Airlines Logo
6:49 pm - 11:05 pmONT-BDL
25h 16m2 stops
$323Multiple Airlines
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Tue, Dec 9 - Wed, Dec 10
Multiple Airlines Logo
8:00 am - 9:17 pmBDL-ONT
16h 17m1 stop
Multiple Airlines Logo
6:15 am - 10:59 pmONT-BDL
13h 44m2 stops
$344Multiple Airlines
Find Deal
Tue, Jan 6 - Mon, Jan 12
Delta Logo
6:00 am - 11:31 amBDL-ONT
8h 31m1 stop
Delta Logo
10:30 pm - 10:25 amONT-BDL
8h 55m1 stop
$345Delta
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Tue, Jan 6 - Mon, Jan 12
Delta Logo
6:00 am - 11:31 amBDL-ONT
8h 31m1 stop
Delta Logo
10:30 pm - 12:07 pmONT-BDL
10h 37m2 stops
$350Delta
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Good to know

Low seasonFebruary
Cheapest flight$100
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Boston to Ontario

FAQs for booking flights from Massachusetts to Ontario

  • How does KAYAK find such low prices on flights from Massachusetts to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Massachusetts to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Massachusetts with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)