$396 Cheap United flights from Ontario to Montreal (ONT to YUL)

Find The Best Day To Fly from Ontario to Montreal

Amazing United ONT to YUL Flight Deals

The cheapest flights to Pierre Elliott Trudeau Intl. found within the past 7 days were $921 round trip and $396 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Dec 22 - Mon, Jan 5
ONT
Ontario
YUL
Montreal
$921 Roundtrip, found 5 days ago
$921
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 22 from Ontario to Montreal, returning Mon, Jan 5, priced at $921 found 5 days ago
Mon, Dec 22 - Mon, Jan 5
ONT
Ontario
YUL
Montreal
$936 Roundtrip, found 5 days ago
$936
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 22 from Ontario to Montreal, returning Mon, Jan 5, priced at $936 found 5 days ago
Mon, Dec 22 - Mon, Jan 5
ONT
Ontario
YUL
Montreal
$942 Roundtrip, found 5 days ago
$942
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 22 from Ontario to Montreal, returning Mon, Jan 5, priced at $942 found 5 days ago
Mon, Dec 22 - Mon, Jan 5
ONT
Ontario
YUL
Montreal
$1,013 Roundtrip, found 5 days ago
$1,013
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 22 from Ontario to Montreal, returning Mon, Jan 5, priced at $1,013 found 5 days ago

YUL From ONT Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
LHotel Montreal

LHotel Montreal

4 out of 5
Price was $1,345, price is now $1,132 per person
$1,132
per person
Nov 26 - Nov 30
found 2 hours ago
Roundtrip flight included
Ontario (ONT) to Montreal (YUL)
Hotel Gault

Hotel Gault

4 out of 5
Price was $1,593, price is now $1,251 per person
$1,251
per person
Nov 26 - Nov 30
found 2 hours ago
Roundtrip flight included
Ontario (ONT) to Montreal (YUL)
Le Mount Stephen

Le Mount Stephen

5 out of 5
Price was $1,618, price is now $1,377 per person
$1,377
per person
Nov 26 - Nov 30
found 2 hours ago
Roundtrip flight included
Ontario (ONT) to Montreal (YUL)
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Frequently asked questions

Can I catch a flight from ONT to Montréal–Trudeau right now?
It's wise to learn about any travel advice reports and quarantine requirements in effect in your destination. Ensure you visit our Covid-19 Travel Advisor for up-to-date info on flying to Pierre Elliott Trudeau Intl. Airport (YUL).
What terminal is United Airlines at Los Angeles - Ontario Intl. Airport (ONT)?
If you're traveling with United Airlines from ONT to Montreal Airport, you might be able to find out the terminal information when you receive your ticket. If not, get in touch with your airline.
Are there United Airlines non-stop flights from ONT to YUL?
United Airlines doesn't provide direct flights between ONT and YUL, so prepare to make a stopover. If you've got enough time between flights, hit the airport shops while you wait for your connection.
How long is a United Airlines flight from ONT to YUL?
Air traffic and weather permitting, your United Airlines flight from ONT to YUL should take roughly 6 hours and 47 minutes. That means you've got time to order your favorite drink, squeeze in a snooze and work on your travel schedule before you land.
How many direct and indirect flights does United Airlines fly from ONT to YUL?
Every week, there are about 7 United Airlines flights between ONT and YUL.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Montreal Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Ontario ONT to Montreal YUL 

To find the best deals on flights to Ontario from Montreal with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Ontario ONT to Montreal YUL with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $921 to $1,013, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Ontario ONT to Montreal YUL 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Ontario to Montreal costs from $396. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Montreal YUL from  Ontario ONT with United 

To find a cheap United flight from Ontario ONT to Montreal YUL, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Ontario ONT to Montreal YUL 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as December, or if you book a flight with a stopover. 

 

Find nonstop flights from Ontario ONT to Montreal YUL with United 

If you’re keen to be on Montreal soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Ontario ONT to Montreal YUL 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Montreal YUL from  Ontario ONT with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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Sheraton Montreal Airport Hotel

Sheraton Montreal Airport Hotel

4 out of 5
555 Boulevard McMillan, Dorval, QC
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the business center, free WiFi in public areas, and ...
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Hyatt Place Montreal Airport

3 out of 5
690 MICHEL JASMIN, DORVAL, QC
This property features a restaurant, a 24-hour gym, and a bar/lounge. Guests will appreciate perks like free WiFi and a free airport shuttle. Self parking, a ...
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Holiday Inn & Suites Montreal Airport by IHG

Holiday Inn & Suites Montreal Airport by IHG

3 out of 5
10888 Cote-de-Liesse, Montreal, QC
This hotel features a restaurant, an indoor pool, and a bar/lounge. Enjoy the 24-hour gym and perks like free WiFi and a free airport shuttle. Enjoy the hot ...
8.4/10 Very Good! (1,001 reviews)
Staff was friendly and helpful at check in. Great stay close to the airport with a free shuttle!

Reviewed on Oct 23, 2025

Holiday Inn & Suites Montreal Airport by IHG
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Explore More Ways to Travel with Travelocity

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.