$306 Cheap Flights from Calgary (YYC) to St. Thomas (STT)

View $306 flight on Mon, Oct 27, 2025Opens in a new window

Popular airlines from Calgary International Airport (YYC) to Cyril E. King Airport (STT)

Cheap Flights from Calgary to St. Thomas (YYC-STT)

Prices were available within the past 7 days and start at $306 for one-way flights and $959 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$959 Roundtrip, found 2 hours ago
$959
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $959 found 2 hours ago
United
Mon, Jan 12 - Mon, Jan 19
YYC
Calgary
STT
St. Thomas
$962 Roundtrip, found 1 hour ago
$962
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Jan 12 from Calgary to St. Thomas, returning Mon, Jan 19, priced at $962 found 1 hour ago
United
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$992 Roundtrip, found 2 hours ago
$992
Roundtrip
found 2 hours ago
Select United flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $992 found 2 hours ago
United
Mon, Jan 12 - Mon, Jan 19
YYC
Calgary
STT
St. Thomas
$1,009 Roundtrip, found 1 hour ago
$1,009
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Jan 12 from Calgary to St. Thomas, returning Mon, Jan 19, priced at $1,009 found 1 hour ago
American Airlines
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$1,024 Roundtrip, found 2 hours ago
$1,024
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $1,024 found 2 hours ago
United
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$1,054 Roundtrip, found 2 hours ago
$1,054
Roundtrip
found 2 hours ago
Select United flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $1,054 found 2 hours ago
American Airlines
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$1,074 Roundtrip, found 2 hours ago
$1,074
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $1,074 found 2 hours ago
United
Mon, Jan 12 - Mon, Jan 19
YYC
Calgary
STT
St. Thomas
$1,087 Roundtrip, found 1 hour ago
$1,087
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Jan 12 from Calgary to St. Thomas, returning Mon, Jan 19, priced at $1,087 found 1 hour ago
United
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$1,092 Roundtrip, found 2 hours ago
$1,092
Roundtrip
found 2 hours ago
Select United flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $1,092 found 2 hours ago
Delta
Sun, May 31 - Thu, Jun 11
YYC
Calgary
STT
St. Thomas
$1,213 Roundtrip, found 2 hours ago
$1,213
Roundtrip
found 2 hours ago
Select Delta flight, departing Sun, May 31 from Calgary to St. Thomas, returning Thu, Jun 11, priced at $1,213 found 2 hours ago

Frequently asked questions

How much does a flight from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT) cost?
Secure a cheap one-way flight from $306 or cheap return flight from $959 from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT)?
May is the cheapest month to fly from YYC to STT. Traveling during quieter months is often the key to better flight prices.
What is the cheapest airline that flies from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT)?
To find the cheapest airline that'll fly you from YYC to STT, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT)?
You'll need to hop on a flight with a layover when traveling from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from YYC to STT?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT)?
To avoid possible delays on the Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT) route, aim to travel before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT) last-minute?
Last-minute bookings from YYC to STT are usually more expensive. For the cheapest rates, start searching for flights ahead of time. That said, if you're flexible with your travel plans, you may land a cheap ticket right before your trip.
Is it cheaper to book a YYC to STT flight and hotel package?
Compared with arranging hotels and flights separately, booking a YYC to STT flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the stress out of planning your trip. Just secure your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Calgary Intl. Airport (YYC) to Cyril E. King Airport (STT)?
In most cases, you're able to reschedule or cancel your YYC to STT flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want more information, head to our Customer Service portal.

Travel information

Origin airport
Calgary Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, United
Roundtrip price
$959
Distance
3492 mi

Book with confidence

Calgary to St. Thomas Flights

The cheapest times to fly from Calgary to St. Thomas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Calgary to St. Thomas are during the month of May. You can find some of the cheapest flights from Calgary to St. Thomas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Calgary to St. Thomas

Sunday is one of the best days to book for cheap flights from Calgary to St. Thomas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Calgary to St. Thomas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Calgary to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $306 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Calgary to St. Thomas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Calgary to St. Thomas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Calgary to St. Thomas Flights

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*Available to One Key members.