Cheap flights from Ontario to St. John's from $422

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 9/17. 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

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
7:00 am - 12:45 am
ONT
-
YYT
13h 15m
2 stops
United Airlines Logo
5:00 am - 8:01 pm
YYT
-
ONT
19h 31m
2 stops
$786United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
7:00 am - 1:46 am
ONT
-
YYT
14h 16m
2 stops
United Airlines Logo
5:00 am - 8:01 pm
YYT
-
ONT
19h 31m
2 stops
$790United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
7:00 am - 1:46 am
ONT
-
YYT
14h 16m
2 stops
United Airlines Logo
5:00 am - 8:01 pm
YYT
-
ONT
19h 31m
2 stops
$791United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
7:00 am - 1:46 am
ONT
-
YYT
14h 16m
2 stops
United Airlines Logo
5:35 am - 10:35 pm
YYT
-
ONT
21h 30m
2 stops
$852United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
1:50 pm - 5:10 pm
ONT
-
YYT
22h 50m
3 stops
United Airlines Logo
5:35 am - 8:42 pm
YYT
-
ONT
19h 37m
2 stops
$1,017United Airlines
Mon, Jul 27 - Mon, Aug 3
United Airlines Logo
6:10 am - 1:00 pm
ONT
-
YYT
26h 20m
2 stops
United Airlines Logo
5:35 am - 8:42 pm
YYT
-
ONT
19h 37m
2 stops
$1,047United Airlines
Mon, Jul 27 - Mon, Aug 3
Multiple Airlines Logo
6:20 am - 6:45 am
ONT
-
YYT
19h 55m
2 stops
Multiple Airlines Logo
6:05 am - 10:45 pm
YYT
-
ONT
21h 10m
3 stops
$1,207Multiple Airlines
Mon, Aug 17 - Sat, Aug 22
WestJet Logo
6:20 am - 6:45 am
ONT
-
YYT
19h 55m
2 stops
WestJet Logo
7:35 am - 10:45 pm
YYT
-
ONT
19h 40m
2 stops
$1,363WestJet
Mon, Aug 17 - Sat, Aug 22
United Airlines Logo
5:00 am - 1:46 am
ONT
-
YYT
16h 16m
3 stops
United Airlines Logo
5:35 am - 12:50 pm
YYT
-
ONT
11h 45m
2 stops
$1,372United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
5:00 am - 12:45 am
ONT
-
YYT
15h 15m
3 stops
United Airlines Logo
8:30 am - 8:01 pm
YYT
-
ONT
16h 01m
2 stops
$1,380United Airlines
Tue, Sep 1 - Wed, Sep 2

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United Airlines flights from Ontario to St. John's

Our best United Airlines deals on Ontario to St. John's flight tickets
United Airlines
Sep 1
ONT7:00 amOntario
13h 15m
2 stops
YYT12:45 amSt John's
Sep 2
YYT5:00 amSt John's
19h 31m
2 stops
ONT8:01 pmOntario
$786
United Airlines
Sep 1
ONT7:00 amOntario
14h 16m
2 stops
YYT1:46 amSt John's
Sep 2
YYT5:00 amSt John's
19h 31m
2 stops
ONT8:01 pmOntario
$790
United Airlines
Sep 1
ONT7:00 amOntario
14h 16m
2 stops
YYT1:46 amSt John's
Sep 2
YYT5:00 amSt John's
19h 31m
2 stops
ONT8:01 pmOntario
$791

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 832,500 searches. Data last updated June 23, 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

Tue 9/1

7:00 am-12:45 am

2 stops13h 15m

St John's

Wed 9/2

5:00 am-8:01 pm

2 stops19h 31m

$786

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 9/1

7:00 am-1:46 am

2 stops14h 16m

St John's

Wed 9/2

5:00 am-8:01 pm

2 stops19h 31m

$790

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 9/1

7:00 am-1:46 am

2 stops14h 16m

St John's

Wed 9/2

5:00 am-8:01 pm

2 stops19h 31m

$791

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 9/1

7:00 am-1:46 am

2 stops14h 16m

St John's

Wed 9/2

5:35 am-10:35 pm

2 stops21h 30m

$852

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Mon 7/27

1:50 pm-5:10 pm

3 stops22h 50m

St John's

Mon 8/3

5:35 am-8:42 pm

2 stops19h 37m

$1,017

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Mon 7/27

6:10 am-1:00 pm

2 stops26h 20m

St John's

Mon 8/3

5:35 am-8:42 pm

2 stops19h 37m

$1,047

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Mon 8/17

6:20 am-6:45 am

2 stops19h 55m

St John's

Sat 8/22

6:05 am-10:45 pm

3 stops21h 10m

$1,207

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Mon 8/17

6:20 am-6:45 am

2 stops19h 55m

St John's

Sat 8/22

7:35 am-10:45 pm

2 stops19h 40m

$1,363
Quickest round-trip

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 9/1

5:00 am-1:46 am

3 stops16h 16m

St John's

Wed 9/2

5:35 am-12:50 pm

2 stops11h 45m

$1,372

OntarioSt. John's

ONT - YYT

ONTYYT

Ontario

Tue 9/1

5:00 am-12:45 am

3 stops15h 15m

St John's

Wed 9/2

8:30 am-8:01 pm

2 stops16h 01m

$1,380

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 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 is the most popular carrier operating from Ontario to St John's

What airlines fly to St. John's?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to St. John's from Ontario according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when traveling to St. John's. Keep in mind that there are 3 different airlines that fly to St. John's on a routine basis, so you have a few additional options to choose from.

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

14h 11m

Direct flights

None
The fastest flight from Ontario to St. John's takes 14h 11m
There are no direct flights from Ontario to St. John's. There are no popular flight routes from Ontario to St. John's.

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 3414.2 mi. Flights usually cover this in 14h 11m, depending on flying conditions and air traffic around both airports.

  • 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 are updated daily.

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

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

    The required travel and health documents for your St John's Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at St John's Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to St. John's. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to St. John's from Ontario with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. John's from Ontario.

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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1 adult
Thu 7/23
Thu 7/30

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