Cheap flights from Portland, ME to Ontario from C$ 246
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
30 Nov — 7 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheap flight deals from Portland to Ontario
Enter your travel dates to find the best prices.
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Best
Last-minute
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Cheapest flights from Portland to Ontario
Explore the most affordable flight options available from Portland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.
Thu 26/1110:34 a.m. -
1 stop25h 25m
Thu 3/125:11 p.m. -
1 stop16h 11m
Deal found 27/10C$ 649
Thu 26/113:10 p.m. -
2 stops22h 30m
Thu 3/126:30 a.m. -
1 stop26h 38m
Deal found 27/10C$ 688
Thu 3/125:00 a.m. -
1 stop11h 31m
Wed 9/125:10 p.m. -
1 stop16h 12m
Deal found 29/10C$ 718
Sat 28/116:47 p.m. -
1 stop5h 00m
Sat 5/1212:42 p.m. -
1 stop10h 04m
Deal found 29/10C$ 746
Thu 10/124:00 p.m. -
1 stop6h 54m
Thu 17/122:35 p.m. -
1 stop8h 45m
Deal found 26/10C$ 778
Thu 3/126:00 a.m. -
1 stop5h 48m
Mon 7/128:40 p.m. -
1 stop12h 25m
Deal found 27/10C$ 810
Thu 10/1210:54 a.m. -
2 stops32h 46m
Thu 17/127:15 a.m. -
1 stop25h 53m
Deal found 26/10C$ 852
Wed 4/111:52 p.m. -
1 stop7h 25m
Wed 11/116:00 a.m. -
1 stop9h 16m
Deal found 26/10C$ 860
Mon 14/129:48 a.m. -
1 stop29h 36m
Mon 21/127:00 a.m. -
2 stops26h 21m
Deal found 30/10C$ 862
Fri 11/127:00 a.m. -
1 stop14h 24m
Fri 18/127:44 p.m. -
1 stop4h 15m
Deal found 27/10C$ 864
Wed 4/116:31 p.m. -
2 stops20h 49m
Wed 11/117:15 a.m. -
1 stop26h 06m
Deal found 26/10C$ 874
Best flights from Portland to Ontario
Discover carefully curated flight deals from Portland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.
Thu 26/113:10 p.m. -
2 stops22h 30m
Thu 3/126:30 a.m. -
1 stop26h 38m
Deal found 27/10C$ 688
Thu 10/124:00 p.m. -
1 stop6h 54m
Thu 17/122:35 p.m. -
1 stop8h 45m
Deal found 26/10C$ 778
Thu 10/126:00 a.m. -
1 stop11h 49m
Thu 17/122:45 p.m. -
1 stop4h 18m
Deal found 26/10C$ 810
Fri 26/36:08 a.m. -
1 stop4h 16m
Mon 29/310:59 a.m. -
1 stop6h 20m
Deal found 29/10C$ 810
Mon 18/19:48 a.m. -
1 stop29h 27m
Thu 4/28:40 p.m. -
1 stop12h 28m
Deal found 26/10C$ 726
Fri 15/16:00 a.m. -
1 stop13h 59m
Sat 23/17:43 a.m. -
1 stop13h 20m
Deal found 28/10C$ 810
Fri 5/311:01 a.m. -
1 stop6h 28m
Sun 7/36:00 a.m. -
1 stop4h 36m
Deal found 30/10C$ 810
Thu 18/25:59 p.m. -
1 stop5h 14m
Mon 22/22:10 p.m. -
1 stop8h 56m
Deal found 28/10C$ 810
Thu 3/126:00 a.m. -
1 stop5h 48m
Mon 7/128:40 p.m. -
1 stop12h 25m
Deal found 27/10C$ 810
Sat 28/116:00 a.m. -
1 stop15h 24m
Sat 5/129:44 a.m. -
1 stop11h 46m
Deal found 30/10C$ 841
Last-minute flights from Portland to Ontario
Discover last-minute flight deals from Portland to Ontario. Data last updated 31 October 2026 and is based on user searches.
Mon 2/115:08 p.m. -
1 stop16h 39m
Tue 3/1112:55 p.m. -
1 stop5h 54m
Deal found 28/10C$ 1,133
Wed 4/111:52 p.m. -
1 stop7h 25m
Wed 11/116:00 a.m. -
1 stop9h 16m
Deal found 26/10C$ 860
Wed 4/116:31 p.m. -
2 stops20h 49m
Wed 11/117:15 a.m. -
1 stop26h 06m
Deal found 26/10C$ 874
Thu 5/111:52 p.m. -
1 stop7h 25m
Sat 7/117:55 a.m. -
1 stop8h 00m
Deal found 27/10C$ 955
Mon 16/116:47 p.m. -
1 stop5h 00m
Thu 19/116:00 a.m. -
1 stop4h 38m
Deal found 30/10C$ 810
Mon 16/115:35 a.m. -
1 stop6h 13m
Thu 19/113:35 p.m. -
1 stop6h 16m
Deal found 30/10C$ 841
Tue 24/116:27 a.m. -
1 stop14h 07m
Sun 29/116:04 p.m. -
1 stop6h 15m
Deal found 29/10C$ 930
Thu 26/1110:34 a.m. -
1 stop25h 25m
Thu 3/125:11 p.m. -
1 stop16h 11m
Deal found 27/10C$ 649
Thu 26/113:10 p.m. -
2 stops22h 30m
Thu 3/126:30 a.m. -
1 stop26h 38m
Deal found 27/10C$ 688
Sat 28/116:47 p.m. -
1 stop5h 00m
Sat 5/1212:42 p.m. -
1 stop10h 04m
Deal found 29/10C$ 746
One-way flights from Portland to Ontario
Search for one-way flight options from Portland to Ontario. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.
Mon 14/125:35 p.m. -
3 stops45h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 30/10C$ 246
Thu 10/126:00 a.m. -
1 stop11h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 26/10C$ 327
Sat 21/115:08 p.m. -
1 stop6h 51m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 364
Fri 20/115:50 a.m. -
1 stop14h 09m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 427
Thu 10/1210:54 a.m. -
3 stops32h 04m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 26/10C$ 457
Sat 21/115:09 p.m. -
2 stops23h 16m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 468
Fri 20/113:53 p.m. -
2 stops45h 47m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 27/10C$ 602
Find flight deals from Portland to Ontario
Keep the following information in mind while searching for Portland to Ontario flight deals. Data was last updated 31 October 2026.
Customize your flight search to find flights from Portland to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 31 October 2026.
Use the filters below to find and compare flights from Portland to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Mon 14/12
5:35 p.m.-3:20 p.m.
3 stops45h 45m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 246
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Thu 10/12
6:00 a.m.-5:10 p.m.
1 stop11h 10m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 327
Quickest round-trip
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Sat 21/11
5:08 p.m.-11:59 p.m.
1 stop6h 51m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 364
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Fri 20/11
5:50 a.m.-7:59 p.m.
1 stop14h 09m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 427
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Sat 21/11
5:09 p.m.-6:10 p.m.
3 stops25h 01m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 546
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Fri 20/11
3:53 p.m.-1:40 p.m.
2 stops45h 47m
Toronto Pearson Intl
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 602
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Thu 26/11
3:10 p.m.-1:40 p.m.
2 stops22h 30m
Toronto Pearson Intl
Thu 3/12
6:30 a.m.-9:08 a.m.
1 stop26h 38m
C$ 688
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Mon 18/1
9:48 a.m.-3:15 p.m.
1 stop29h 27m
Toronto Pearson Intl
Thu 4/2
8:40 p.m.-9:08 a.m.
1 stop12h 28m
C$ 726
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Thu 10/12
4:00 p.m.-10:54 p.m.
1 stop6h 54m
Toronto Pearson Intl
Thu 17/12
2:35 p.m.-11:20 p.m.
1 stop8h 45m
C$ 778
PortlandToronto
PWM Portland - YYZ Toronto Pearson Intl
PWMYYZ
Portland
Thu 10/12
6:00 a.m.-5:49 p.m.
1 stop11h 49m
Toronto Pearson Intl
Thu 17/12
2:45 p.m.-7:03 p.m.
1 stop4h 18m
C$ 810
Flights are sorted by cheapest round-trip flights first.
Deals found on 30/10
Showing 1-10 of 16 resultsSorted by cheapest first
1
2
Best time to book a flight from Portland to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Portland with our price prediction graph.
PWM-YYZ
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portland to Ontario
PWM-CAON
PWM-YYZ
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Portland to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Portland to Ontario?
If you book a flight to Ontario from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 4.7 km from the centre of Portland.
How long is the flight from Portland, Maine to Region of Ontario?
Delta, United Airlines, and American Airlines can get you from Portland, Maine to Region of Ontario in just under 4h 16m. Your travel time can differ by up to 7h 33m. The distance from Portland, Maine to Region of Ontario is about 748 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Portland to Ontario that include hotel bookings?
Yes. In addition to deals on Portland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Ontario.
Can I find deals for business class flights from Portland to Ontario?
Yes. Cheapflights offers flight deals from Portland to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Portland to Ontario?
Cheapflights helps you search for flights from Portland to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Portland to Ontario?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portland to Ontario for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Portland to Ontario with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Portland to Ontario flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Portland to Ontario become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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