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.

$132 CHEAP FLIGHTS from Massachusetts to Ontario

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from Massachusetts to Ontario

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Massachusetts to Ontario

Wed, Jan 20 - Sat, Jan 23

3:25 pm - 11:13 pmBOS Boston Logan Intl-ONT Ontario

10h 48m1 stop Dallas/Fort Worth

10:38 am - 11:54 pmONT Ontario-BOS Boston Logan Intl

10h 16m1 stop Dallas/Fort Worth

$263American Airlines

Mon, Nov 23 - Wed, Dec 2

8:05 am - 3:33 pmBOS Boston Logan Intl-ONT Ontario

10h 28m1 stop San Francisco

1:40 pm - 11:58 pmONT Ontario-BOS Boston Logan Intl

7h 18m1 stop Denver Intl

$263United Airlines

Tue, Jan 12 - Wed, Feb 24

7:00 am - 3:20 pmBOS Boston Logan Intl-ONT Ontario

11h 20m1 stop Seattle/Tacoma Intl

12:00 pm - 11:59 pmONT Ontario-BOS Boston Logan Intl

8h 59m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Tue, Nov 10 - Wed, Nov 18

7:13 am - 3:13 pmBOS Boston Logan Intl-ONT Ontario

11h 00m1 stop Seattle/Tacoma Intl

4:09 pm - 5:40 amONT Ontario-BOS Boston Logan Intl

10h 31m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Sat, Dec 5 - Sat, Dec 12

6:03 am - 12:12 pmBOS Boston Logan Intl-ONT Ontario

9h 09m1 stop Dallas/Fort Worth

10:32 am - 10:23 pmONT Ontario-BOS Boston Logan Intl

8h 51m1 stop Dallas/Fort Worth

$264American Airlines

Tue, Nov 10 - Tue, Nov 10

5:00 am - 11:55 amBOS Boston Logan Intl-ONT Ontario

9h 55m2 stops Denver Intl Las Vegas Harry Reid Intl

1:55 pm - 11:45 pmONT Ontario-BOS Boston Logan Intl

6h 50m1 stop Denver Intl

$268Southwest

Tue, Nov 17 - Thu, Nov 19

1:29 pm - 8:51 pmBOS Boston Logan Intl-ONT Ontario

10h 22m2 stops Chicago O'Hare Intl Denver Intl

6:00 am - 4:49 pmONT Ontario-BOS Boston Logan Intl

7h 49m1 stop San Francisco

$268United Airlines

Sat, Dec 12 - Sat, Dec 19

5:25 am - 2:10 pmBOS Boston Logan Intl-ONT Ontario

11h 45m2 stops Baltimore/Washington Denver Intl

2:35 pm - 12:35 amONT Ontario-BOS Boston Logan Intl

7h 00m1 stop Denver Intl

$269Southwest

Thu, Nov 26 - Sat, Dec 5

1:45 pm - 7:49 pmBOS Boston Logan Intl-ONT Ontario

9h 04m1 stop Atlanta Hartsfield-Jackson

1:11 pm - 12:13 amONT Ontario-BOS Boston Logan Intl

8h 02m1 stop Salt Lake City

$297Delta

Wed, Nov 11 - Tue, Nov 17

6:45 pm - 11:49 pmBOS Boston Logan Intl-ONT Ontario

8h 04m1 stop Salt Lake City

6:00 am - 4:26 pmONT Ontario-BOS Boston Logan Intl

7h 26m1 stop Salt Lake City

$297Delta

Recent last minute flight deals from Massachusetts to Ontario

Wed, Oct 28 - Mon, Nov 9

6:50 pm - 11:55 pmBOS Boston Logan Intl-ONT Ontario

8h 05m1 stop Salt Lake City

11:10 pm - 11:00 amONT Ontario-BOS Boston Logan Intl

8h 50m1 stop Atlanta Hartsfield-Jackson

$441Delta

Fri, Oct 30 - Mon, Nov 9

9:03 am - 6:00 pmBOS Boston Logan Intl-ONT Ontario

11h 57m1 stop Seattle/Tacoma Intl

4:09 pm - 5:40 amONT Ontario-BOS Boston Logan Intl

10h 31m1 stop Seattle/Tacoma Intl

$445Alaska Airlines

Fri, Oct 30 - Wed, Nov 11

9:03 am - 6:00 pmBOS Boston Logan Intl-ONT Ontario

11h 57m1 stop Seattle/Tacoma Intl

4:09 pm - 5:40 amONT Ontario-BOS Boston Logan Intl

10h 31m1 stop Seattle/Tacoma Intl

$445Alaska Airlines

Fri, Oct 30 - Thu, Nov 12

9:03 am - 6:00 pmBOS Boston Logan Intl-ONT Ontario

11h 57m1 stop Seattle/Tacoma Intl

4:09 pm - 5:40 amONT Ontario-BOS Boston Logan Intl

10h 31m1 stop Seattle/Tacoma Intl

$445Alaska Airlines

Thu, Oct 29 - Mon, Nov 9

6:05 am - 12:36 pmBOS Boston Logan Intl-ONT Ontario

9h 31m1 stop Salt Lake City

11:10 pm - 9:45 amONT Ontario-BOS Boston Logan Intl

7h 35m1 stop Atlanta Hartsfield-Jackson

$462Delta

Fri, Oct 30 - Mon, Nov 9

5:30 am - 11:06 amBOS Boston Logan Intl-ONT Ontario

8h 36m1 stop Atlanta Hartsfield-Jackson

11:10 pm - 11:00 amONT Ontario-BOS Boston Logan Intl

8h 50m1 stop Atlanta Hartsfield-Jackson

$462Delta

Tue, Oct 27 - Wed, Oct 28

8:45 am - 3:16 pmBOS Boston Logan Intl-ONT Ontario

9h 31m1 stop Phoenix Sky Harbor Intl

10:25 am - 9:26 pmONT Ontario-BOS Boston Logan Intl

8h 01m1 stop Dallas/Fort Worth

$557American Airlines

Wed, Oct 28 - Tue, Nov 17

8:25 am - 8:51 pmBOS Boston Logan Intl-ONT Ontario

15h 26m2 stops Los Angeles Denver Intl

6:00 am - 4:49 pmONT Ontario-BOS Boston Logan Intl

7h 49m1 stop San Francisco

$559United Airlines

Wed, Oct 28 - Tue, Nov 17

8:25 am - 8:51 pmBOS Boston Logan Intl-ONT Ontario

15h 26m2 stops Los Angeles Denver Intl

9:25 am - 11:59 pmONT Ontario-BOS Boston Logan Intl

11h 34m2 stops San Francisco Washington, D.C. Dulles Intl

$564United Airlines

Tue, Oct 27 - Wed, Oct 28

7:29 am - 1:30 pmBOS Boston Logan Intl-ONT Ontario

9h 01m1 stop Dallas/Fort Worth

6:00 am - 8:56 pmONT Ontario-BOS Boston Logan Intl

11h 56m2 stops Dallas/Fort Worth Charlotte Douglas

$568American Airlines

Useful Info

Low season	January
High season	November
Cheapest flight	$132

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly and prices are also 5% lower on average.

Flight from Boston 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.