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St. John's

$635+ Cheap flights from Ontario (ONT) to St. John's (ANU)

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ANU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Ontario to St. John's

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to St. John's (ANU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$635
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$755
From Ontario to St. John's V.C. Bird Intl
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Highest demand for flights based on searches. 6% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to St. John's

Cheapest flights from Ontario to St. John's
Explore the most affordable flight options available from Ontario to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:55 pmONT - ANU
2 stops20h 20mAmerican Airlines
Wed 11/195:47 pmANU - ONT
2 stops32h 12mAmerican Airlines
Deal found 9/15$635
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/83:08 pmONT - ANU
2 stops21h 38mAmerican Airlines
Sat 11/153:42 pmANU - ONT
2 stops23h 54mAmerican Airlines
Deal found 9/15$813
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:29 pmONT - ANU
2 stops20h 26mUnited Airlines
Sat 11/153:05 pmANU - ONT
2 stops33h 39mUnited Airlines
Deal found 9/15$851
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:00 pmONT - ANU
1 stop13h 01mDelta
Sat 11/154:14 pmANU - ONT
2 stops24h 04mDelta
Deal found 9/15$1,016
This United deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 amONT - ANU
3 stops26h 00mMultiple Airlines
Wed 10/1512:15 pmANU - ONT
3 stops36h 09mMultiple Airlines
Deal found 9/15$1,681

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to St. John's 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 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Ontario to St. John's that are best for you.

Fly from

Ontario

Fly to

St. John's

Route

Depart

Return

Price

OntarioSt. John's

ONT - ANU

ONTANU

Ontario

Sat 11/15

12:55 pm-1:15 pm

2 stops20h 20m

St. John's V.C. Bird Intl

Wed 11/19

5:47 pm-9:59 pm

2 stops32h 12m

$635

OntarioSt. John's

ONT - ANU

ONTANU

Ontario

Sat 11/8

3:08 pm-4:46 pm

2 stops21h 38m

St. John's V.C. Bird Intl

Sat 11/15

3:42 pm-11:36 am

2 stops23h 54m

$813

OntarioSt. John's

ONT - ANU

ONTANU

Ontario

Fri 11/7

1:29 pm-1:55 pm

2 stops20h 26m

St. John's V.C. Bird Intl

Sat 11/15

3:05 pm-8:44 pm

2 stops33h 39m

$851

OntarioSt. John's

ONT - ANU

ONTANU

Ontario

Fri 11/7

10:00 pm-3:01 pm

1 stop13h 01m

St. John's V.C. Bird Intl

Sat 11/15

4:14 pm-12:18 pm

2 stops24h 04m

$1,016

OntarioSt. John's

ONT - ANU

ONTANU

Ontario

Wed 10/8

6:00 am-11:00 am

3 stops26h 00m

St. John's V.C. Bird Intl

Wed 10/15

12:15 pm-9:24 pm

3 stops36h 09m

$1,681

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Ontario to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from Ontario with our price prediction graph.
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 Ontario to St. John's

What is the cheapest month to book a flight from Ontario to St. John's, Saint John?

Currently, August is the cheapest month in which you can book a flight from Ontario to St. John's, Saint John (average of $500). Flying from Ontario to St. John's, Saint John in June is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ontario to St. John's. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to St. John's, Saint John?

    For as low as $1,016, American Airlines can have you in St. John's, Saint John from Ontario in 13h 01m. Airlines will cover a distance of 3619 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Ontario to St. John's that include hotel bookings?

    Yes. In addition to deals on Ontario to St. John's flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to St. John's?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to St. John's.

  • Can I find deals for business class flights from Ontario to St. John's?

    Yes. Cheapflights offers flight deals from Ontario to St. John's by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to St. John's, Saint John?

    Currently, August is the cheapest month in which you can book a flight from Ontario to St. John's, Saint John (average of $500). Flying from Ontario to St. John's, Saint John in June is currently the most expensive (average of $651). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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