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Cheap flights from Ontario to St. John's from C$ 477

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 16/8. 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
1 adult, Economy, 0 bags

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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
5:00 a.m. - 12:41 a.m.
ONT
-
YYT
15h 11m
2 stops
United Airlines Logo
5:35 a.m. - 8:36 p.m.
YYT
-
ONT
19h 31m
2 stops
C$ 954United Airlines
Sat, 9 May - Tue, 12 May
United Airlines Logo
5:00 a.m. - 12:45 a.m.
ONT
-
YYT
15h 15m
2 stops
United Airlines Logo
5:35 a.m. - 10:51 p.m.
YYT
-
ONT
21h 46m
2 stops
C$ 968United Airlines
Sat, 27 Jun - Fri, 3 Jul
United Airlines Logo
5:00 a.m. - 12:45 a.m.
ONT
-
YYT
15h 15m
2 stops
United Airlines Logo
5:35 a.m. - 10:51 p.m.
YYT
-
ONT
21h 46m
2 stops
C$ 1,089United Airlines
Tue, 7 Jul - Sun, 26 Jul
United Airlines Logo
5:00 a.m. - 12:33 a.m.
ONT
-
YYT
15h 03m
2 stops
United Airlines Logo
5:35 a.m. - 6:19 p.m.
YYT
-
ONT
17h 14m
2 stops
C$ 1,162United Airlines
Sat, 19 Sep - Wed, 23 Sep
United Airlines Logo
5:00 a.m. - 1:01 p.m.
ONT
-
YYT
27h 31m
3 stops
United Airlines Logo
5:35 a.m. - 8:36 p.m.
YYT
-
ONT
19h 31m
2 stops
C$ 1,276United Airlines
Sat, 9 May - Tue, 12 May
United Airlines Logo
5:00 a.m. - 12:41 a.m.
ONT
-
YYT
15h 11m
2 stops
United Airlines Logo
5:35 a.m. - 5:52 p.m.
YYT
-
ONT
16h 47m
3 stops
C$ 1,353United Airlines
Sat, 9 May - Tue, 12 May
United Airlines Logo
5:00 a.m. - 12:33 a.m.
ONT
-
YYT
15h 03m
3 stops
United Airlines Logo
5:35 a.m. - 6:19 p.m.
YYT
-
ONT
17h 14m
2 stops
C$ 1,400United Airlines
Sat, 19 Sep - Wed, 23 Sep
United Airlines Logo
5:00 a.m. - 12:33 a.m.
ONT
-
YYT
15h 03m
3 stops
United Airlines Logo
5:35 a.m. - 6:19 p.m.
YYT
-
ONT
17h 14m
2 stops
C$ 1,503United Airlines
Sat, 19 Sep - Wed, 23 Sep

United Airlines flights from Ontario to St. John's

Our best United Airlines deals on Ontario to St. John's flight tickets
United Airlines
9 May
ONT5:00 a.m.Ontario
15h 11m
2 stops
YYT12:41 a.m.St John's
12 May
YYT5:35 a.m.St John's
19h 31m
2 stops
ONT8:36 p.m.Ontario
C$ 954
United Airlines
27 Jun
ONT5:00 a.m.Ontario
15h 15m
2 stops
YYT12:45 a.m.St John's
3 Jul
YYT5:35 a.m.St John's
21h 46m
2 stops
ONT10:51 p.m.Ontario
C$ 968
United Airlines
7 Jul
ONT5:00 a.m.Ontario
15h 15m
2 stops
YYT12:45 a.m.St John's
26 Jul
YYT5:35 a.m.St John's
21h 46m
2 stops
ONT10:51 p.m.Ontario
C$ 1,089

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 March 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

Sat 9/5

5:00 a.m.-12:41 a.m.

2 stops15h 11m

St John's

Tue 12/5

5:35 a.m.-8:36 p.m.

2 stops19h 31m

C$ 954

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sat 27/6

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

2 stops15h 15m

St John's

Fri 3/7

5:35 a.m.-10:51 p.m.

2 stops21h 46m

C$ 968

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 7/7

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

2 stops15h 15m

St John's

Sun 26/7

5:35 a.m.-10:51 p.m.

2 stops21h 46m

C$ 1,089

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sat 19/9

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

2 stops15h 03m

St John's

Wed 23/9

5:35 a.m.-6:19 p.m.

2 stops17h 14m

C$ 1,162

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sat 9/5

5:00 a.m.-1:01 p.m.

3 stops27h 31m

St John's

Tue 12/5

5:35 a.m.-8:36 p.m.

2 stops19h 31m

C$ 1,276
Quickest round-trip

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sat 9/5

5:00 a.m.-12:41 a.m.

2 stops15h 11m

St John's

Tue 12/5

5:35 a.m.-5:52 p.m.

3 stops16h 47m

C$ 1,353

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sat 19/9

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

3 stops15h 03m

St John's

Wed 23/9

5:35 a.m.-6:19 p.m.

2 stops17h 14m

C$ 1,400

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sat 19/9

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

3 stops15h 03m

St John's

Wed 23/9

5:35 a.m.-6:19 p.m.

2 stops17h 14m

C$ 1,503
Cheapest one-way
Quickest one-way

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Sun 16/8

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

2 stops15h 15m

C$ 477

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 is the most popular carrier 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

13h 03m

Direct flights

None
The fastest flight from Ontario to St. John's takes 13h 03m
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

  • 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 13h 03m.

  • 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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