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Cheap flights from Ontario to St. John's from C$ 499

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 St. John's departing on 3/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Ontario to St. John's

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 p.m. - 12:36 a.m.
ONT
-
YYT
25h 36m
2 stops
United Airlines Logo
5:35 a.m. - 8:46 p.m.
YYT
-
ONT
19h 41m
2 stops
C$ 1,053United Airlines
Mon, 15 Jun - Fri, 19 Jun
United Airlines Logo
1:49 p.m. - 11:21 p.m.
ONT
-
YYT
29h 02m
2 stops
United Airlines Logo
5:35 a.m. - 10:26 p.m.
YYT
-
ONT
21h 21m
2 stops
C$ 1,058United Airlines
Tue, 20 Oct - Thu, 22 Oct
Air Canada Logo
5:00 a.m. - 12:45 a.m.
ONT
-
YYT
15h 15m
2 stops
Air Canada Logo
5:35 a.m. - 8:53 p.m.
YYT
-
ONT
19h 48m
2 stops
C$ 1,111Air Canada
Sun, 23 Aug - Thu, 27 Aug
United Airlines Logo
9:39 a.m. - 11:21 p.m.
ONT
-
YYT
33h 12m
2 stops
United Airlines Logo
5:35 a.m. - 10:26 p.m.
YYT
-
ONT
21h 21m
2 stops
C$ 1,126United Airlines
Tue, 20 Oct - Thu, 22 Oct
United Airlines Logo
5:00 a.m. - 12:45 a.m.
ONT
-
YYT
15h 15m
2 stops
United Airlines Logo
5:35 a.m. - 8:42 p.m.
YYT
-
ONT
19h 37m
2 stops
C$ 1,151United Airlines
Tue, 23 Jun - Tue, 30 Jun
Multiple Airlines Logo
9:36 p.m. - 12:35 a.m.
ONT
-
YYT
22h 29m
3 stops
Multiple Airlines Logo
6:00 a.m. - 10:41 p.m.
YYT
-
ONT
21h 11m
3 stops
C$ 1,318Multiple Airlines
Mon, 15 Jun - Fri, 19 Jun
United Airlines Logo
5:00 a.m. - 12:33 a.m.
ONT
-
YYT
15h 03m
3 stops
United Airlines Logo
8:30 a.m. - 8:52 p.m.
YYT
-
ONT
16h 52m
2 stops
C$ 1,466United Airlines
Tue, 20 Oct - Thu, 22 Oct
United Airlines Logo
5:00 a.m. - 12:33 a.m.
ONT
-
YYT
15h 03m
3 stops
United Airlines Logo
8:30 a.m. - 8:52 p.m.
YYT
-
ONT
16h 52m
2 stops
C$ 1,586United Airlines
Tue, 20 Oct - Thu, 22 Oct
United Airlines Logo
5:00 a.m. - 12:45 a.m.
ONT
-
YYT
15h 15m
3 stops
United Airlines Logo
2:05 p.m. - 9:59 p.m.
YYT
-
ONT
12h 24m
2 stops
C$ 1,593United Airlines
Sun, 23 Aug - Thu, 27 Aug
United Airlines Logo
5:00 a.m. - 12:45 a.m.
ONT
-
YYT
15h 15m
3 stops
United Airlines Logo
8:30 a.m. - 8:01 p.m.
YYT
-
ONT
16h 01m
2 stops
C$ 1,600United Airlines
Sun, 23 Aug - Thu, 27 Aug

United Airlines flights from Ontario to St. John's

Our best United Airlines deals on Ontario to St. John's flight tickets
United Airlines
15 Jun
ONT6:30 p.m.Ontario
25h 36m
2 stops
YYT12:36 a.m.St John's
19 Jun
YYT5:35 a.m.St John's
19h 41m
2 stops
ONT8:46 p.m.Ontario
C$ 1,053
United Airlines
20 Oct
ONT1:49 p.m.Ontario
29h 02m
2 stops
YYT11:21 p.m.St John's
22 Oct
YYT5:35 a.m.St John's
21h 21m
2 stops
ONT10:26 p.m.Ontario
C$ 1,058
United Airlines
20 Oct
ONT9:39 a.m.Ontario
33h 12m
2 stops
YYT11:21 p.m.St John's
22 Oct
YYT5:35 a.m.St John's
21h 21m
2 stops
ONT10:26 p.m.Ontario
C$ 1,126

momondo 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, momondo users made 96,600 searches. Data last updated 25 May 2026.
Use the filters below to find and compare flights from Ontario to St. John's that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Mon 15/6

6:30 p.m.-12:36 a.m.

2 stops25h 36m

St John's

Fri 19/6

5:35 a.m.-8:46 p.m.

2 stops19h 41m

C$ 1,053

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 20/10

1:49 p.m.-11:21 p.m.

2 stops29h 02m

St John's

Thu 22/10

5:35 a.m.-10:26 p.m.

2 stops21h 21m

C$ 1,058

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sun 23/8

5:00 a.m.-12:45 a.m.

2 stops15h 15m

St John's

Thu 27/8

5:35 a.m.-8:53 p.m.

2 stops19h 48m

C$ 1,111

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 20/10

9:39 a.m.-11:21 p.m.

2 stops33h 12m

St John's

Thu 22/10

5:35 a.m.-10:26 p.m.

2 stops21h 21m

C$ 1,126

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 23/6

5:00 a.m.-12:45 a.m.

2 stops15h 15m

St John's

Tue 30/6

5:35 a.m.-8:42 p.m.

2 stops19h 37m

C$ 1,151

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Mon 15/6

9:36 p.m.-12:35 a.m.

3 stops22h 29m

St John's

Fri 19/6

6:00 a.m.-10:41 p.m.

3 stops21h 11m

C$ 1,318

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 20/10

5:00 a.m.-12:33 a.m.

3 stops15h 03m

St John's

Thu 22/10

8:30 a.m.-8:52 p.m.

2 stops16h 52m

C$ 1,466

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 20/10

5:00 a.m.-12:33 a.m.

3 stops15h 03m

St John's

Thu 22/10

8:30 a.m.-8:52 p.m.

2 stops16h 52m

C$ 1,586
Quickest round-trip

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sun 23/8

5:00 a.m.-12:45 a.m.

3 stops15h 15m

St John's

Thu 27/8

2:05 p.m.-9:59 p.m.

2 stops12h 24m

C$ 1,593

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sun 23/8

5:00 a.m.-12:45 a.m.

3 stops15h 15m

St John's

Thu 27/8

8:30 a.m.-8:01 p.m.

2 stops16h 01m

C$ 1,600

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. John's from

How to get the cheapest flight ticket from Ontario to St. John's

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 airline that flies from Ontario to St John's?

United Airlines and Delta are the most popular carriers operating from Ontario to St John's

When to book flights from Ontario to St. John's

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to St. John's according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to St. John's (ONT to YYT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to St. John's

Fastest flight time

12h 25m

Direct flights

None
The fastest flight from Ontario to St. John's takes 12h 25m
There are no direct flights from Ontario to St. John's. There are no popular flight routes from Ontario to St. John's.
Search flight deals

Frequently asked questions about flying from Ontario to St. John's

  • How far is Ontario to St John's by plane?

    A flight from Ontario to St John's will travel around 5494.5 km. In terms of flight time, this usually takes a little over 12h 25m.

  • When did momondo last update prices for flights from Ontario Airport to St John's Airport?

    Prices for flights from Ontario Airport to St John's Airport refresh daily.

  • How old do you have to be to fly from Ontario Airport to St John's Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to St John's Airport.

  • What documentation or ID do you need to fly to St John's Airport?

    The travel and health documents required for your trip to St John's Airport 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 St John's Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to St. John's?

It is quick and easy to find Ontario to St. John's 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 St. John's that suits you.

Can I find flights from Ontario to St. John's with flexible booking policies on momondo?

Flights from Ontario to St. John's with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to St. John's?

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 St. John's.

I’m not ready to book a flight from Ontario to St. John's right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to St. John's flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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