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Cheap flights from the United States to Ontario from C$ 127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Ontario departing on 18/6. 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 the United States to Ontario

Recent round-trip flight deals from the United States to Ontario

Enter your travel dates to find the best prices.
Porter Airlines Logo
9:55 a.m. - 11:35 a.m.
LGA
-
YYZ
1h 40mdirect
Porter Airlines Logo
7:20 a.m. - 8:55 a.m.
YYZ
-
LGA
1h 35mdirect
C$ 268Porter Airlines
Wed, 16 Sep - Sat, 19 Sep
Air Canada Logo
6:55 p.m. - 8:26 p.m.
DCA
-
YYZ
1h 31mdirect
Air Canada Logo
8:10 a.m. - 12:00 p.m.
YYZ
-
DCA
3h 50m
1 stop
C$ 287Air Canada
Mon, 22 Jun - Thu, 25 Jun
Air Canada Logo
6:00 a.m. - 7:38 a.m.
EWR
-
YUL
1h 38mdirect
Air Canada Logo
8:15 a.m. - 9:42 a.m.
YUL
-
EWR
1h 27mdirect
C$ 290Air Canada
Sat, 20 Jun - Sat, 27 Jun
GOL Logo
10:40 a.m. - 12:05 p.m.
LGA
-
YUL
1h 25mdirect
GOL Logo
6:35 a.m. - 8:00 a.m.
YUL
-
LGA
1h 25mdirect
C$ 301GOL
Tue, 11 Aug - Thu, 13 Aug
GOL Logo
10:40 a.m. - 12:05 p.m.
LGA
-
YUL
1h 25mdirect
GOL Logo
6:35 a.m. - 8:00 a.m.
YUL
-
LGA
1h 25mdirect
C$ 302GOL
Tue, 11 Aug - Thu, 13 Aug
United Airlines Logo
10:29 p.m. - 9:19 a.m.
IAD
-
YYZ
10h 50m
1 stop
United Airlines Logo
12:45 p.m. - 2:21 p.m.
YYZ
-
IAD
1h 36mdirect
C$ 316United Airlines
Tue, 2 Jun - Wed, 3 Jun
United Airlines Logo
8:25 a.m. - 10:04 a.m.
IAD
-
YYZ
1h 39mdirect
United Airlines Logo
1:00 p.m. - 7:02 p.m.
YYZ
-
IAD
6h 02m
1 stop
C$ 324United Airlines
Wed, 3 Jun - Wed, 3 Jun
Porter Airlines Logo
3:55 p.m. - 9:48 p.m.
EWR
-
YTZ
5h 53m
1 stop
Porter Airlines Logo
11:20 a.m. - 12:50 p.m.
YTZ
-
EWR
1h 30mdirect
C$ 324Porter Airlines
Wed, 20 May - Mon, 25 May
WestJet Logo
7:30 a.m. - 8:05 p.m.
LAX
-
YYZ
9h 35m
1 stop
WestJet Logo
6:15 a.m. - 12:25 p.m.
YYZ
-
LAX
9h 10m
1 stop
C$ 402WestJet
Mon, 14 Sep - Tue, 22 Sep
WestJet Logo
7:30 a.m. - 11:59 p.m.
LAX
-
YYZ
13h 29m
2 stops
WestJet Logo
1:30 p.m. - 10:05 p.m.
YYZ
-
LAX
11h 35m
1 stop
C$ 406WestJet
Thu, 27 Aug - Sat, 12 Sep

United Airlines flights from United States to Region of Ontario

Our best United Airlines deals on United States to Region of Ontario flight tickets
United Airlines
2 Jun
IAD10:29 p.m.Washington, D.C. Dulles Intl
10h 50m
1 stop
YYZ9:19 a.m.Toronto Pearson Intl
3 Jun
YYZ12:45 p.m.Toronto Pearson Intl
1h 36m
IAD2:21 p.m.Washington, D.C. Dulles Intl
C$ 316
United Airlines
3 Jun
IAD8:25 a.m.Washington, D.C. Dulles Intl
1h 39m
YYZ10:04 a.m.Toronto Pearson Intl
3 Jun
YYZ1:00 p.m.Toronto Pearson Intl
6h 02m
1 stop
IAD7:02 p.m.Washington, D.C. Dulles Intl
C$ 324
United Airlines
27 May
IAD8:25 a.m.Washington, D.C. Dulles Intl
1h 39m
YYZ10:04 a.m.Toronto Pearson Intl
5 Jun
YYZ12:45 p.m.Toronto Pearson Intl
1h 36m
IAD2:21 p.m.Washington, D.C. Dulles Intl
C$ 336

Delta flights from United States to Region of Ontario

Our best Delta deals on United States to Region of Ontario flight tickets
Delta
28 May
IAD6:00 a.m.Washington, D.C. Dulles Intl
7h 30m
1 stop
YYZ1:30 p.m.Toronto Pearson Intl
1 Jun
YYZ2:20 p.m.Toronto Pearson Intl
8h 36m
1 stop
IAD10:56 p.m.Washington, D.C. Dulles Intl
C$ 370
Delta
9 Jun
DCA1:30 p.m.Washington, D.C. Reagan-National
7h 49m
1 stop
YYZ9:19 p.m.Toronto Pearson Intl
11 Jun
YYZ6:14 p.m.Toronto Pearson Intl
4h 45m
1 stop
DCA10:59 p.m.Washington, D.C. Reagan-National
C$ 372
Delta
23 May
LGA4:09 p.m.New York LaGuardia
1h 50m
YYZ5:59 p.m.Toronto Pearson Intl
25 May
YYZ7:55 a.m.Toronto Pearson Intl
1h 45m
LGA9:40 a.m.New York LaGuardia
C$ 425

momondo Fare Finder

 
Customize your flight search to find flights from United States to Region of Ontario 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 9 May 2026.
Use the filters below to find and compare flights from the United States to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkToronto

LGA - YYZ

LGAYYZ

New York LaGuardia

Wed 16/9

9:55 a.m.-11:35 a.m.

Nonstop1h 40m

Toronto Pearson Intl

Sat 19/9

7:20 a.m.-8:55 a.m.

Nonstop1h 35m

C$ 268

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 22/6

6:55 p.m.-8:26 p.m.

Nonstop1h 31m

Toronto Pearson Intl

Thu 25/6

8:10 a.m.-12:00 p.m.

1 stop3h 50m

C$ 287

NewarkMontreal

EWR - YUL

EWRYUL

Newark

Sat 20/6

6:00 a.m.-7:38 a.m.

Nonstop1h 38m

Montreal Pierre Elliott Trudeau Intl

Sat 27/6

8:15 a.m.-9:42 a.m.

Nonstop1h 27m

C$ 290
Quickest round-trip

New YorkMontreal

LGA - YUL

LGAYUL

New York LaGuardia

Tue 11/8

10:40 a.m.-12:05 p.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

6:35 a.m.-8:00 a.m.

Nonstop1h 25m

C$ 301

New YorkMontreal

LGA - YUL

LGAYUL

New York LaGuardia

Tue 11/8

10:40 a.m.-12:05 p.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

6:35 a.m.-8:00 a.m.

Nonstop1h 25m

C$ 302

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 2/6

10:29 p.m.-9:19 a.m.

1 stop10h 50m

Toronto Pearson Intl

Wed 3/6

12:45 p.m.-2:21 p.m.

Nonstop1h 36m

C$ 316

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 3/6

8:25 a.m.-10:04 a.m.

Nonstop1h 39m

Toronto Pearson Intl

Wed 3/6

1:00 p.m.-7:02 p.m.

1 stop6h 02m

C$ 324

NewarkToronto

EWR - YTZ

EWRYTZ

Newark

Wed 20/5

3:55 p.m.-9:48 p.m.

1 stop5h 53m

Toronto Island

Mon 25/5

11:20 a.m.-12:50 p.m.

Nonstop1h 30m

C$ 324

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles Los Angeles

Mon 14/9

7:30 a.m.-8:05 p.m.

1 stop9h 35m

Toronto Pearson Intl

Tue 22/9

6:15 a.m.-12:25 p.m.

1 stop9h 10m

C$ 402

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles Los Angeles

Thu 27/8

7:30 a.m.-11:59 p.m.

2 stops13h 29m

Toronto Pearson Intl

Sat 12/9

1:30 p.m.-10:05 p.m.

1 stop11h 35m

C$ 406

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 Ontario from

How to get the cheapest flight ticket from United States to Region of Ontario

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 month to fly to Region of Ontario?

In general, May is the cheapest month to fly from United States to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 446. If you are unable to visit Region of Ontario during the month of May, then departing from United States during the month June is also very affordable. Most momondo users find prices during this month for around C$ 448.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from United States to Region of Ontario is on a Saturday. Travellers who choose to depart for Region of Ontario on a Saturday will often find tickets for as low as C$ 382. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 600.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from United States to Region of Ontario during this time can be as low as C$ 246. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 554 on average. Flights to Region of Ontario from United States at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest United States to Ontario flight route?

Fly from Newark to Toronto Island for the best United States - Ontario flight prices

How far in advance should I book a flight from the United States to Ontario?

You are more likely to see cheaper flights to Region of Ontario from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from United States for as low as C$ 250 on momondo.

Can stopping save me money on United States to Region of Ontario flights?

You could potentially save up to 10% on your flight if you consider stops on a United States to Region of Ontario flight.

Cheap United States to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Region of Ontario

Best price found

C$ 111

Fastest flight time

1h 08m

Direct flights

Every day

Airports in Region of Ontario

125 airports
The best one-way flight to Region of Ontario from United States in the past 72 hours is C$ 111. The best round-trip flight deal from United States to Region of Ontario found on momondo in the last 72 hours is C$ 117.
The fastest flight from United States to Region of Ontario takes 1h 08m
Direct flights go from United States to Region of Ontario every day.
There are 125 airports in Region of Ontario. From United States there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ).
Search flight deals

Frequently asked questions about flying from the United States to Ontario

  • When did momondo last update prices for flights from United States to Ontario?

    Prices for flights from United States to Ontario are updated daily.

  • How many operators does momondo search for flights from United States to Ontario?

  • How old do you have to be to fly from United States to Ontario?

    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 United States to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The required travel and health documents for your Ontario 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 Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from United States to Region of Ontario?

Best airlines flying from United States to Region of Ontario

Compare and see reviews for airlines that fly from United States to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 139Free CancellationRating
7.2
3,332 reviews
Search WestJet flights
Porter AirlinesPriceFrom C$ 157Free CancellationRating
8.0
437 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 161Free CancellationRating
7.1
11,008 reviews
Search Air Canada flights
DeltaPriceFrom C$ 173Free CancellationRating
7.9
8,457 reviews
Search Delta flights
Flair AirlinesPriceFrom C$ 174Free CancellationRating
6.0
268 reviews
Search Flair Airlines flights
American AirlinesPriceFrom C$ 176Free CancellationRating
7.1
11,670 reviews
Search American Airlines flights
Air TransatPriceFrom C$ 216Free CancellationRating
7.8
548 reviews
Search Air Transat flights
United AirlinesPriceFrom C$ 223Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Ontario?

It is quick and easy to find United States to Ontario 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 Ontario that suits you.

Can I find flights from United States to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from United States with this policy.

How can momondo help me find flights from United States to Ontario?

Once you have performed a search for United States to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Region of Ontario trip

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Find better results for your trip to Ontario

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Popular flights according to clicks in the last 7 days on momondo
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