ONT

$112 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 4/7. 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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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 - Thu, Apr 30
Southwest Logo
4:45 pm - 8:05 pm
BOS
-
ONT
30h 20m
1 stop
Southwest Logo
11:55 pm - 12:40 pm
ONT
-
BOS
9h 45m
1 stop
$242Southwest
Fri, Apr 24 - Mon, Apr 27
Southwest Logo
5:15 am - 9:55 am
BOS
-
ONT
7h 40m
1 stop
Southwest Logo
9:55 pm - 9:45 am
ONT
-
BOS
8h 50m
1 stop
$259Southwest
Fri, Apr 24 - Tue, Apr 28
Southwest Logo
5:15 am - 12:10 pm
BOS
-
ONT
9h 55m
2 stops
Southwest Logo
9:55 pm - 9:45 am
ONT
-
BOS
8h 50m
1 stop
$264Southwest
Tue, Mar 24 - Tue, Mar 31
American Airlines Logo
2:40 pm - 10:07 pm
BOS
-
ONT
10h 27m
2 stops
American Airlines Logo
11:58 pm - 12:16 pm
ONT
-
BOS
9h 18m
2 stops
$269American Airlines
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
3:05 pm - 8:36 pm
BOS
-
ONT
8h 31m
1 stop
United Airlines Logo
6:49 pm - 8:24 am
ONT
-
BOS
10h 35m
1 stop
$274United Airlines
Fri, May 1 - Mon, May 4
Alaska Airlines Logo
4:33 pm - 11:59 pm
BOS
-
ONT
10h 26m
1 stop
Alaska Airlines Logo
10:39 am - 11:59 pm
ONT
-
BOS
10h 20m
1 stop
$278Alaska Airlines
Tue, Mar 31 - Sat, Apr 11
Southwest Logo
5:00 am - 9:55 am
BOS
-
ONT
7h 55m
1 stop
Southwest Logo
1:20 pm - 11:50 pm
ONT
-
BOS
7h 30m
1 stop
$279Southwest
Thu, May 28 - Mon, Jun 1
United Airlines Logo
5:45 am - 12:47 pm
BOS
-
ONT
10h 02m
2 stops
United Airlines Logo
6:30 pm - 5:58 am
ONT
-
BOS
8h 28m
1 stop
$294United Airlines
Tue, Apr 14 - Wed, Apr 15
Delta Logo
1:51 pm - 9:00 pm
ALB
-
ONT
10h 09m
2 stops
Delta Logo
7:00 am - 11:21 pm
ONT
-
ALB
13h 21m
2 stops
$317Delta
Tue, Apr 14 - Wed, Apr 15
Delta Logo
1:51 pm - 9:00 pm
ALB
-
ONT
10h 09m
2 stops
Delta Logo
5:55 pm - 9:05 am
ONT
-
ALB
12h 10m
2 stops
$337Delta
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$112
Most popular time to fly with an average 1% 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)