How does KAYAK find such low prices on flights from Maine 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 Maine to Ontario.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Maine 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 Maine 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 Maine with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine 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 Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$180 CHEAP FLIGHTS from Maine to Ontario

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Cheap Flights from Maine 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 Maine to Ontario

Sat, Nov 7 - Sat, Nov 14

2:09 pm - 7:30 pmPWM Portland-ONT Ontario

8h 21m1 stop Atlanta Hartsfield-Jackson

12:18 pm - 11:31 pmONT Ontario-PWM Portland

8h 13m1 stop Atlanta Hartsfield-Jackson

$359Delta

Sat, Nov 7 - Sat, Nov 14

1:10 pm - 10:43 pmPWM Portland-ONT Ontario

12h 33m2 stops Detroit Metropolitan Wayne County Seattle/Tacoma Intl

12:18 pm - 11:31 pmONT Ontario-PWM Portland

8h 13m1 stop Atlanta Hartsfield-Jackson

$364Delta

Sat, Nov 7 - Sat, Nov 14

2:09 pm - 10:11 pmPWM Portland-ONT Ontario

11h 02m2 stops Atlanta Hartsfield-Jackson Salt Lake City

12:18 pm - 11:31 pmONT Ontario-PWM Portland

8h 13m1 stop Atlanta Hartsfield-Jackson

$364Delta

Sat, Nov 7 - Sat, Nov 14

2:09 pm - 7:30 pmPWM Portland-ONT Ontario

8h 21m1 stop Atlanta Hartsfield-Jackson

12:18 pm - 11:31 pmONT Ontario-PWM Portland

8h 13m1 stop Atlanta Hartsfield-Jackson

$409Delta

Mon, Jan 25 - Sat, Jan 30

11:49 am - 11:13 pmPWM Portland-ONT Ontario

14h 24m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

9:28 am - 10:48 pmONT Ontario-PWM Portland

10h 20m2 stops Phoenix Sky Harbor Intl Philadelphia

$425American Airlines

Mon, Jan 25 - Sat, Jan 30

11:34 am - 11:08 pmPWM Portland-ONT Ontario

14h 34m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

9:28 am - 10:48 pmONT Ontario-PWM Portland

10h 20m2 stops Phoenix Sky Harbor Intl Philadelphia

$425American Airlines

Mon, Jan 25 - Sat, Jan 30

11:34 am - 11:08 pmPWM Portland-ONT Ontario

14h 34m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth

7:00 am - 9:43 pmONT Ontario-PWM Portland

11h 43m2 stops Dallas/Fort Worth Washington, D.C. Reagan-National

$425American Airlines

Sat, Oct 31 - Tue, Nov 3

3:23 pm - 8:51 pmPWM Portland-ONT Ontario

8h 28m1 stop Denver Intl

5:00 am - 4:02 pmONT Ontario-PWM Portland

8h 02m1 stop Denver Intl

$489United Airlines

Sat, Nov 7 - Sat, Nov 14

3:23 pm - 8:51 pmPWM Portland-ONT Ontario

8h 28m1 stop Denver Intl

5:00 am - 4:02 pmONT Ontario-PWM Portland

8h 02m1 stop Denver Intl

$489United Airlines

Sat, Oct 31 - Tue, Nov 3

3:23 pm - 8:51 pmPWM Portland-ONT Ontario

8h 28m1 stop Denver Intl

4:17 pm - 10:07 amONT Ontario-PWM Portland

14h 50m2 stops San Francisco Washington, D.C. Dulles Intl

$494United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$180

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly and prices are also 19% lower on average.

Flight from Portland to Ontario

How does KAYAK find such low prices on flights from Maine 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 Maine to Ontario.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to Ontario?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Maine 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 Maine 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 Maine with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine 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 Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.