Cheap flights from Ontario to Portland from $154
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Portland departing on 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from Ontario to Portland, Maine
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Delta flights from Ontario to Portland, Maine
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How to get the cheapest flight ticket from Ontario to Portland, Maine
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 Portland, Maine?
The cheapest month to fly to Portland, Maine from Ontario is in January. Flight prices, which tend to average around $246, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $332.
What is the cheapest day to depart on your flight to Portland, Maine?
On average, the least expensive day to fly to Portland, Maine from Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $432. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $563.
What is the cheapest time of day to depart on your flight to Portland, Maine?
In the evening is the cheapest time of day to fly from Ontario to Portland, Maine when you can find flight prices for as low as $468. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $510. Of course, these prices can vary depending on the time of year and what airport you fly to.
Can stopping save me money on Ontario to Portland, Maine flights?
You could potentially save up to 3% on your flight if you consider stops on a Ontario to Portland, Maine flight.
What is the cheapest airline that flies from Ontario to Portland?
Delta, JetBlue, and United Airlines are the most popular carriers operating from Ontario to Portland
What airlines fly to Portland, Maine?
JetBlue, United Airlines and American Airlines are the top three most popular airlines that fly to Portland, Maine from Ontario according to our data. JetBlue is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 10 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Portland, Maine
Cheap Ontario to Portland, Maine (ONT to PWM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Portland, Maine
How far is Ontario to Portland by plane?
Ontario and Portland are 2595.5 mi apart from one another. A reasonable flight in good conditions will take 7h 35m.
When did momondo last update prices for flights from Ontario Airport to Portland Airport?
Prices for flights from Ontario Airport to Portland Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Portland Airport?
There are 5 operators available for flights from Ontario Airport to Portland Airport as of June 2025.
How old do you have to be to fly from Ontario Airport to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Portland, Maine?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Portland, Maine is American Airlines (42% of total bookings). The next most popular airlines are Delta (16%), JetBlue (15%), and United Airlines (15%).
Best airlines flying from Ontario to Portland, Maine
Compare and see reviews for airlines that fly from Ontario to Portland, Maine with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $259 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom $287 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $300 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $384 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $523 | Free Cancellation | Rating 8.0 4,278 reviews |
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Portland?
Finding the right flight to Portland from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.
Can I find flights from Ontario to Portland with flexible booking policies on momondo?
All flight searches from Ontario to Portland on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ontario to Portland?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Portland.
I’m not ready to book a flight from Ontario to Portland right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Ontario to Portland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.