Cheap flights from Portland, Maine to Ontario from $141
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Ontario departing on 2/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Portland, Maine to Ontario
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Portland, Maine to Ontario
All round-trip flight deals from Portland, Maine to Ontario
American Airlines flights from Portland, Maine to Region of Ontario
Our best American Airlines deals on Portland, Maine to Region of Ontario flight tickets
Delta flights from Portland, Maine to Region of Ontario
Our best Delta deals on Portland, Maine to Region of Ontario flight tickets
See travel insights to Ontario from
How to get the cheapest flight ticket from Portland, Maine to Region of Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Region of Ontario?
The month of September is, on average, the cheapest month to fly to Region of Ontario from Portland, Maine, with most prices found around $116. If you aren’t able to travel during the month of September, then book flights to Region of Ontario from Portland, Maine during October instead. Flights to Region of Ontario in October, while not as cheap as those in September, still average around $276.
What is the cheapest day to depart on your flight to Region of Ontario?
According to our data, Saturday is the cheapest day to fly to Region of Ontario from Portland, Maine. The lowest ticket price found for a Saturday departure recently was $286. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Portland, Maine to Region of Ontario on a Friday will generally be more expensive and average around $591. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest airline that flies from Portland to Ontario?
Air Canada, United Airlines, and WestJet are the most popular carriers operating from Portland to Ontario
What airlines fly to Region of Ontario?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from Portland, Maine according to our data. Air Canada is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 6 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.
Cheap Portland, Maine to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Region of Ontario
Best Price Found | $141 |
|---|---|
Fastest flight time | 4h 18m |
Direct flights | None |
Airports in Region of Ontario | 2 airports |
When did momondo last update prices for flights from Portland Airport to Ontario?
Prices for flights from Portland Airport to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Ontario?
There are 2 operators available for flights from Portland Airport to Ontario as of January 2025.
How old do you have to be to fly from Portland Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Portland, Maine to Region of Ontario
Compare and see reviews for airlines that fly from Portland, Maine to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $247 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $318 | Free Cancellation | Rating 7.4 8,975 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to Ontario?
It is quick and easy to find Portland to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.
Can I find flights from Portland to Ontario with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Ontario from Portland with this policy.
How can momondo help me find flights from Portland to Ontario?
Once all potential Portland to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Portland to Ontario right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Portland and alert you when they change.