ONT

$97 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 3/3. 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
$255
Overall average: $446
United Airlines
Wed 4/29Mon 5/4
BOS - ONT • 1 stop
Cheapest one-way
$97
Typical prices: $164-$253
Frontier
Tue 3/3
BOS - ONT • 2 stops
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We hope you love your trip to Ontario!
Flight Deals
Useful Info
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

Wed, Apr 29 - Mon, May 4
United Airlines Logo
7:09 am - 12:38 pm
BOS
-
ONT
8h 29m
1 stop
United Airlines Logo
6:54 pm - 8:23 am
ONT
-
BOS
10h 29m
1 stop
$255United Airlines
Wed, Feb 4 - Sat, Feb 7
Alaska Airlines Logo
7:00 am - 3:08 pm
BOS
-
ONT
11h 08m
1 stop
Alaska Airlines Logo
1:46 pm - 3:20 pm
ONT
-
BOS
22h 34m
1 stop
$259Alaska Airlines
Wed, Feb 4 - Sat, Feb 7
United Airlines Logo
12:15 pm - 8:58 pm
BOS
-
ONT
11h 43m
2 stops
United Airlines Logo
6:00 am - 5:13 pm
ONT
-
BOS
8h 13m
1 stop
$264United Airlines
Thu, Jan 29 - Mon, Feb 2
American Airlines Logo
9:45 am - 5:22 pm
BOS
-
ONT
10h 37m
1 stop
American Airlines Logo
11:59 pm - 11:31 am
ONT
-
BOS
8h 32m
1 stop
$278American Airlines
Fri, Feb 6 - Sun, Feb 8
American Airlines Logo
9:45 am - 6:45 pm
BOS
-
ONT
12h 00m
1 stop
American Airlines Logo
11:59 pm - 11:31 am
ONT
-
BOS
8h 32m
1 stop
$279American Airlines
Mon, Feb 2 - Tue, Feb 10
Hawaiian Airlines Logo
7:00 am - 3:08 pm
BOS
-
ONT
11h 08m
1 stop
Hawaiian Airlines Logo
11:53 am - 11:54 pm
ONT
-
BOS
9h 01m
1 stop
$286Hawaiian Airlines
Thu, Jan 29 - Mon, Feb 2
Multiple Airlines Logo
12:11 pm - 12:43 pm
BDL
-
ONT
27h 32m
2 stops
Multiple Airlines Logo
1:05 pm - 7:59 pm
ONT
-
BDL
27h 54m
1 stop
$351Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
7:00 am - 7:10 pm
BDL
-
ONT
15h 10m
2 stops
Multiple Airlines Logo
6:43 pm - 8:14 pm
ONT
-
BDL
22h 31m
1 stop
$353Multiple Airlines
Thu, Feb 5 - Wed, Feb 11
Delta Logo
12:51 pm - 9:05 pm
ALB
-
ONT
11h 14m
1 stop
Delta Logo
12:41 pm - 11:59 pm
ONT
-
ALB
8h 18m
1 stop
$372Delta
Wed, May 13 - Mon, May 18
Delta Logo
12:55 pm - 6:15 pm
ALB
-
ONT
8h 20m
1 stop
Delta Logo
10:59 pm - 11:51 am
ONT
-
ALB
9h 52m
2 stops
$387Delta
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$97
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 4% 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)