Cheap Flight Deals to St. Mary's ON from CA $120

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

How to find cheap flights to St. Mary's?

The cheapest prices found with in the last 7 days for return flights were CA $227 and CA $120 for one-way flights to St. Mary's for the period specified. Prices and availability are subject to change. Additional terms apply

OriginDestinationTravel datesFlights from*
YYCKitchenerAugust 23 to August 29CA $227
YYCHamiltonSeptember 10 to September 16CA $309
YVRTorontoSeptember 9 to September 14CA $328
YYCTorontoSeptember 10 to September 21CA $328
YYCLondonJuly 1 to July 7CA $409
YEGTorontoJune 14 to June 22CA $417
YEGTorontoJune 14 to June 22CA $417
YEGHamiltonJune 19 to June 21CA $435
YVRTorontoJune 30 to July 8CA $441
YVRKitchenerSeptember 10 to September 16CA $516
YEGLondonSeptember 11 to September 14CA $624
YEGLondonSeptember 11 to September 14CA $624
YXUTorontoJune 21 to June 25CA $636
YXUHamiltonJuly 25 to July 29CA $1,481
YXUKitchenerJuly 28 to August 5CA $1,577
*Prices include taxes and fees
OriginDestinationTravel datesFlights from*
YEGTorontoJune 14 to June 19CA $294
YEGTorontoJune 14 to June 19CA $294
YYCKitchenerJune 12 to June 19CA $348
YYCTorontoJune 14 to June 18CA $372
YEGKitchenerJune 12 to June 19CA $457
YVRTorontoJune 13 to June 16CA $468
YEGHamiltonJune 13 to June 17CA $470
YEGHamiltonJune 13 to June 17CA $470
YVRKitchenerJune 13 to June 20CA $616
YEGLondonJune 14 to June 20CA $668
YEGLondonJune 14 to June 20CA $668
YYCLondonJune 13 to July 9CA $716
YVRLondonJune 12 to June 16CA $832
YVRHamiltonJune 13 to June 18CA $835
YXUTorontoJune 13 to June 20CA $1,229
*Prices include taxes and fees

Your guide to flights to St. Mary's, ON

Flair Airlines fly to St. Mary's, so use Travelocity to search, find, and compare some truly tempting deals from the 2 airlines—that way you can be sure you’ve found the best deal for you. A flight to St. Mary's ON currently costs between CA $227 and CA $1,577. Prices vary, but for the best fares, travel in September when prices are at their lowest.  

Top tips for finding cheap flights to St. Mary's  

The cheapest flight for a round trip to St. Mary's is currently CA $227. When you search for flights to St. Mary's, enter your preferred travel dates then click on ‘flexible dates’ to compare cheap flight tickets to St. Mary's for nearby days.  The cheapest month to travel to St. Mary's is August from our list of deals available.  

But if you’re flexible about when you travel, you can find great deals on flights across the year. If you’re planning a vacation, you can save more on Travelocity when you bundle flights with car rental and hotel bookings, too. Many airlines currently offer flexible booking options, so look for flights offering no change fees.   

How to cancel flights to St. Mary's 

We know plans change, that’s why at Travelocity, we make it as easy as possible for you to cancel or amend your plane tickets. Go to My Trips, enter your itinerary number, then follow the instructions. Many airlines let you cancel flights online free of charge if you booked it in the last 24 hours. Visit Customer Service for more advice.  

Why you should book your flight to St. Mary's with Travelocity 

We have top deals on plane tickets even for last minute flights to St. Mary's, so you can simply type in your travel dates and compare our best prices. Booking with Travelocity means you get flexible cancellation options, 24/7 support, and, thanks to our Price Match Promise, if the airfare drops after you book, you can get a refund! Whether you’re planning a business trip, weekend getaway, or a family vacation—let Travelocity get you to St. Mary's for less. 

Find The Perfect Hotel For After Your Flight

Family Friendly Hotels in St. Mary's

Westover Inn

Westover Inn

3.5 out of 5
300 Thomas Street St. Mary's ON
The price is CA $175 per night from Jun 7 to Jun 8
CA $175
CA $198 total
Jun 7 - Jun 8
includes taxes & fees
Book a stay at this historic hotel in St. Mary's. Enjoy free WiFi, free parking, and a garden. Our guests praise the helpful staff in our reviews. Popular attractions ...
8.2/10 Very Good! (351 reviews)
"Unique place to stay however we were in the other building not the main house. Rooms were small, heater/air conditioner runs all the time. Bed not comfortable."

Reviewed on May 24, 2026

Opens in a new windowWestover Inn
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.

Best St. Mary's Flight and Hotel Packages

St. Mary's flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Elegant Downtown Apartments
Vine Ridge Resort
Living Water Resort and Spa
Don't see what you're looking for?
See all available trips from Halifax to St. Mary's
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Need a car after flight to St. Mary's?

Frequently asked questions

Which airlines fly to St. Mary's?
Whether you're after first-class service or plenty of legroom on your flight to St. Mary's, you're sure to get exactly what you want. There are 20 air carriers that offer flights to this destination, including:

  • Air Canada
  • WestJet
  • American Airlines

Where to stay in St. Mary's
Book your accommodations with Travelocity and rest your head around the corner from the best sights and attractions in St. Mary's. However, with just 2 properties to select from, you'll need to get in quick to score the best room.Compare the facilities and then choose between the Westover Inn and the Stone Willow Inn. They're some of our top suggestions for this locale.
Places to visit in St. Mary's
0 Seeking more close by options? 0 And that's not all. 0
How to get through airport security fast when traveling to St. Mary's
Make your journey to St. Mary's a little bit easier by following these clever security tips:

  • Airport security will ask to see your passport and boarding pass upon arrival. Store them in an accessible place, so they're all ready for inspection.
  • You'll need to put your tunes on pause for a little while. Earphones need to be removed and put in a tub for X-raying. The same goes for items such as coins and keys.
  • Ensure your phone, laptop and other electronic devices are within easy reach. These items need to be sent through the X-ray machine in separate tubs.
  • Lip balm, toothpaste and other toiletry items in cream, liquid or gel form need to be stored in containers no larger than 3.4 ounces (100 milliliters). They must also fit in a 1-quart (1-liter) clear zip-lock plastic bag.
  • Think about your choice of footwear. Slippers are awesome because they're super easy to slip out of for the airport security checks. Try wearing some on your next flight!
  • Some places have strict quarantine laws. Think about where you're headed to and whether or not you're allowed to fly with unpackaged foods.

Plane Tickets To St. Mary's

Although you may try and resist the urge, you know that when the travel bug comes, there is only one way to get rid of it. Thankfully, Travelocity is here to help nip that travel bug in the bud with great deals on flights to St. Mary's. Browse through our inventory to explore a wide range of cheap flights to St. Mary's to solidify your next big trip out of town. Whether you are heading out on a business trip, exploring a place you have never been for pleasure or are bringing the family on the annual vacation, we have the perfect getaway waiting for you. In no time, you will be day dreaming of your plane landing in St. Mary's as you anxiously await to exit the plane and explore what St. Mary's has to offer. Considering all the amazing local food and culture in St. Mary's, we won't hold this against you.

When you are ready to embark on your next big adventure, Travelocity will be right here waiting to open the doors to the garden so that you can go and smell the roses. When you decide to book and travel is entirely up to you, but don't wait too long because we have some of the best deals on the web and they won't last long. Take time to go through our huge selection of cheap flights to St. Mary's to find the best deals that fit into your budget. If browsing on your phone while your boss isn't looking is more your thing (we promise we won't tell), consider checking out Travelocity's mobile app which allows you to take advantage of all our flights to St. Mary's without having to compromise your work computer's search history. If you are looking to save even more, you can easily save up to $537 when you bundle one of our cheap flights to St. Mary's with one of our hotels. So why are you waiting around? There is no better time than now to start booking that next trip. Start your search now to book one of our flights to St. Mary's today!

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*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.