ONT

$149 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 7/8. 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, Sep 9 - Wed, Sep 9
Southwest Logo
2:45 pm - 10:00 pm
BOS
-
ONT
10h 15m
2 stops
Southwest Logo
11:55 pm - 11:40 am
ONT
-
BOS
8h 45m
1 stop
$323Southwest
Fri, Aug 21 - Wed, Sep 2
Delta Logo
5:30 am - 10:42 am
BOS
-
ONT
8h 12m
1 stop
Delta Logo
5:05 pm - 6:09 am
ONT
-
BOS
10h 04m
1 stop
$328Delta
Fri, Jun 5 - Wed, Jun 10
American Airlines Logo
2:27 pm - 10:39 pm
BOS
-
ONT
11h 12m
1 stop
American Airlines Logo
7:13 pm - 8:41 am
ONT
-
BOS
10h 28m
2 stops
$333American Airlines
Sun, Jul 19 - Wed, Jul 22
Delta Logo
6:05 am - 12:10 pm
BOS
-
ONT
9h 05m
1 stop
Delta Logo
6:01 pm - 7:35 am
ONT
-
BOS
10h 34m
1 stop
$338Delta
Fri, Jul 10 - Tue, Jul 14
Southwest Logo
5:25 am - 1:50 pm
BOS
-
ONT
11h 25m
1 stop
Southwest Logo
11:55 pm - 12:15 pm
ONT
-
BOS
9h 20m
1 stop
$339Southwest
Mon, Aug 24 - Mon, Aug 31
Southwest Logo
5:40 am - 10:20 am
BOS
-
ONT
7h 40m
1 stop
Southwest Logo
8:40 pm - 9:55 am
ONT
-
BOS
10h 15m
2 stops
$343Southwest
Tue, Jul 21 - Mon, Jul 27
Delta Logo
6:05 am - 12:10 pm
BOS
-
ONT
9h 05m
1 stop
Delta Logo
10:00 pm - 5:51 pm
ONT
-
BOS
16h 51m
2 stops
$350Delta
Fri, Sep 18 - Fri, Sep 18
Alaska Airlines Logo
7:12 am - 2:16 pm
BOS
-
ONT
10h 04m
1 stop
Alaska Airlines Logo
6:14 pm - 6:09 am
ONT
-
BOS
8h 55m
1 stop
$353Alaska Airlines
Wed, Sep 16 - Tue, Sep 22
United Airlines Logo
9:40 am - 8:01 pm
BDL
-
ONT
13h 21m
2 stops
United Airlines Logo
7:00 am - 5:45 pm
ONT
-
BDL
7h 45m
1 stop
$380United Airlines
Wed, Aug 5 - Wed, Aug 12
American Airlines Logo
7:12 am - 1:31 pm
ALB
-
ONT
9h 19m
1 stop
American Airlines Logo
10:29 am - 10:59 pm
ONT
-
ALB
9h 30m
1 stop
$387American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$149
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 2% lower on average.
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)