ONT

$109 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 6/2. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Massachusetts to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from Massachusetts to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
12:01 pm - 7:43 pmBOS-ONT
10h 42m1 stop
Frontier Logo
8:07 pm - 11:01 amONT-BOS
11h 54m1 stop
$218Frontier
Find Deal
Fri, May 30 - Thu, Jun 5
Frontier Logo
12:01 pm - 7:43 pmBOS-ONT
10h 42m1 stop
Frontier Logo
8:07 pm - 11:01 amONT-BOS
11h 54m1 stop
$219Frontier
Find Deal
Fri, May 30 - Thu, Jun 5
 Logo
11:56 am - 7:12 pmBOS-ONT
10h 16m1 stop
 Logo
11:51 am - 12:06 amONT-BOS
9h 15m1 stop
Mon, Jun 2 - Wed, Jun 4
American Airlines Logo
12:35 pm - 6:23 pmBOS-ONT
8h 48m1 stop
American Airlines Logo
12:45 pm - 11:33 pmONT-BOS
7h 48m1 stop
$269American Airlines
Find Deal
Sat, May 24 - Thu, May 29
Alaska Airlines Logo
7:30 am - 3:50 pmBOS-ONT
11h 20m1 stop
Alaska Airlines Logo
11:51 am - 12:06 amONT-BOS
9h 15m1 stop
$274Alaska Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
Alaska Airlines Logo
7:30 am - 3:50 pmBOS-ONT
11h 20m1 stop
Alaska Airlines Logo
11:51 am - 12:06 amONT-BOS
9h 15m1 stop
$279Alaska Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 4
JetBlue Logo
1:45 pm - 9:59 pmBOS-ONT
11h 14m1 stop
JetBlue Logo
11:59 pm - 12:03 pmONT-BOS
9h 04m1 stop
$291JetBlue
Find Deal
Tue, Jun 17 - Mon, Jun 23
American Airlines Logo
6:01 am - 11:52 amALB-ONT
8h 51m1 stop
American Airlines Logo
6:17 am - 9:39 pmONT-ALB
12h 22m2 stops
$292American Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 20
JetBlue Logo
3:10 pm - 9:11 pmBOS-ONT
9h 01m1 stop
JetBlue Logo
10:59 pm - 11:42 amONT-BOS
9h 43m1 stop
$301JetBlue
Find Deal
Wed, Jun 4 - Thu, Jun 5
 Logo
7:00 am - 3:32 pmBOS-ONT
11h 32m1 stop
 Logo
6:47 pm - 12:07 pmONT-BOS
14h 20m1 stop
Tue, May 13 - Wed, May 14
Useful Info

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$109
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 8% 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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.