Cheap flights from Ontario to Saint John from C$ 167

If you don’t want to visit Saint John in October, then you should wait until September to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 350.

The cheapest day to depart from Region of Ontario to Saint John is on a Friday. Travellers who choose to depart for Saint John on a Friday will often find tickets for as low as C$ 315. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Saint John for around C$ 451.

Our most recent data shows that the best time of day to fly to Saint John is in the morning. Flights from Region of Ontario to Saint John during this time can be as low as C$ 248. In contrast, the most expensive time of day to depart to Saint John is in the afternoon when prices are around C$ 582.

Fly from Toronto Pearson Intl to Saint John for the best Ontario - Saint John flight prices

You are more likely to see cheaper flights to Saint John from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint John for around C$ 455 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint John from Region of Ontario for as low as C$ 302 on momondo.

There is only 1 cabin class available to choose from on Ontario to Saint John flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Flair Airlines and Air Canada are the most popular carriers operating from Ontario to Saint John

Air Canada, Porter Airlines and Flair Airlines are the top three most popular airlines that fly to Saint John from Region of Ontario according to our data. Air Canada is the first choice among our users, with 59% of people opting to fly with this airline when travelling to Saint John. Keep in mind that there are 5 different airlines that fly to Saint John on a routine basis, so you have a few additional options to choose from.

The number of flights available between Region of Ontario and Saint John is 7 per day as of February 2026. The most frequent departure time is 8:00p.m., with 60% of daily flights leaving in the evening.

As of February 2026, 53 flights take off from Region of Ontario and land in Saint John each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.