CA $419 Cheap Flights from Ottawa (YOW) to St. Thomas (STT)

View CA $419 flight on Mon, May 11, 2026Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Cyril E. King Airport (STT)

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Cheap flights from Ottawa (YOW) to St. Thomas (STT)

Prices were available within the past 7 days and start at CA $419 for one-way flights and CA $649 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, May 10 - Wed, May 13
YOW
Ottawa
STT
St. Thomas
CA $649 Roundtrip, found 1 day ago
CA $649
Roundtrip
found 1 day ago
Select United flight, departing Sun, May 10 from Ottawa to St. Thomas, returning Wed, May 13, priced at CA $649 found 1 day ago
United
Sat, Sep 26 - Sat, Oct 3
YOW
Ottawa
STT
St. Thomas
CA $699 Roundtrip, found 3 days ago
CA $699
Roundtrip
found 3 days ago
Select United flight, departing Sat, Sep 26 from Ottawa to St. Thomas, returning Sat, Oct 3, priced at CA $699 found 3 days ago
United
Mon, May 11 - Wed, May 13
YOW
Ottawa
STT
St. Thomas
CA $754 Roundtrip, found 1 day ago
CA $754
Roundtrip
found 1 day ago
Select United flight, departing Mon, May 11 from Ottawa to St. Thomas, returning Wed, May 13, priced at CA $754 found 1 day ago
United
Wed, Jan 13 - Tue, Jan 26
YOW
Ottawa
STT
St. Thomas
CA $845 Roundtrip, found 3 days ago
CA $845
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jan 13 from Ottawa to St. Thomas, returning Tue, Jan 26, priced at CA $845 found 3 days ago
United
Sun, Aug 2 - Wed, Aug 5
YOW
Ottawa
STT
St. Thomas
CA $854 Roundtrip, found 5 days ago
CA $854
Roundtrip
found 5 days ago
Select United flight, departing Sun, Aug 2 from Ottawa to St. Thomas, returning Wed, Aug 5, priced at CA $854 found 5 days ago
United
Sat, Aug 1 - Wed, Aug 5
YOW
Ottawa
STT
St. Thomas
CA $879 Roundtrip, found 5 days ago
CA $879
Roundtrip
found 5 days ago
Select United flight, departing Sat, Aug 1 from Ottawa to St. Thomas, returning Wed, Aug 5, priced at CA $879 found 5 days ago
Air Canada
Mon, May 4 - Wed, May 13
YOW
Ottawa
STT
St. Thomas
CA $884 Roundtrip, found 1 day ago
CA $884
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, May 4 from Ottawa to St. Thomas, returning Wed, May 13, priced at CA $884 found 1 day ago
United
Wed, May 13 - Fri, May 15
YOW
Ottawa
STT
St. Thomas
CA $920 Roundtrip, found 1 day ago
CA $920
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 13 from Ottawa to St. Thomas, returning Fri, May 15, priced at CA $920 found 1 day ago
United
Fri, Sep 25 - Sat, Oct 3
YOW
Ottawa
STT
St. Thomas
CA $925 Roundtrip, found 3 days ago
CA $925
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 25 from Ottawa to St. Thomas, returning Sat, Oct 3, priced at CA $925 found 3 days ago
United
Wed, May 20 - Sat, Jun 6
YOW
Ottawa
STT
St. Thomas
CA $930 Roundtrip, found 7 hours ago
CA $930
Roundtrip
found 7 hours ago
Select United flight, departing Wed, May 20 from Ottawa to St. Thomas, returning Sat, Jun 6, priced at CA $930 found 7 hours ago

Alternative airports near St. Thomas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Terrance B. Lettsome Intl. EIS. Flights from CA $1,731
EIS
Terrance B. Lettsome Intl.
Flights from CA $1,731

Frequently asked questions

How much does a flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) cost?
One-way flights typically cost between $1,721 and $22,339 and return flights often range between $1,721 and $22,339. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
How do I find cheap flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
To find a cheap flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
There are approximately 11 connecting flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King). Some common connection points include Washington Dulles Intl. (IAD), Liberty Intl. (EWR), and O'Hare Intl. (ORD).
What is the earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
The earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) typically departs at approximately 5:00 AM local time. This service is operated by Air Canada and American Airlines. This is a seasonal service active in November. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
You'll typically find the most flights from Ottawa Macdonald-Cartier Intl. (YOW) to St. Thomas Cyril E. King (STT) on a Wednesday, with around 15 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines and Air Canada. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
The most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) are in the early morning, from 6am to 9am. About 44% of passengers prefer this time window. This timing works well because you can get an early start to your travel day and arrive at your destination with plenty of time to settle in.
How long does it take to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
A flight from YOW to STT with a layover takes around 9 hours, with the route covering approximately 1,964 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
Select the "Business class" and "First class" filters when looking for YOW to STT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) flight with Expedia?
It's easy to earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Thomas from Macdonald-Cartier Intl. (YOW)?
From Macdonald-Cartier Intl. (YOW), you can fly directly into Cyril E. King (STT) to reach St. Thomas. Some flights may connect through major hubs like Liberty Intl. (EWR), Washington Dulles Intl. (IAD), O'Hare Intl. (ORD) before reaching St. Thomas. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) at the last minute?
Typically, booking a last minute flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) flight and hotel package?
Securing a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King)?
If you booked your Ottawa, ON (YOW-Macdonald-Cartier Intl.) to St. Thomas (STT-Cyril E. King) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Cyril E. King
Airlines serving
United
Roundtrip price
CA $648
Distance
3141 km

Book with confidence

Ottawa to St. Thomas Flights

The easy way to book your flights from Ottawa to St. Thomas 

With Expedia, it’s simple to find and book flights to St. Thomas from Ottawa whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Cyril E. King, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ottawa to St. Thomas today, tomorrow, or this week.  

 

Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to Cyril E. King, STT 

Sort your search results by price to find great deals on your flight from Ottawa to St. Thomas—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Thomas from Ottawa currently is just CA $649 rising to CA $930.  

Here are more money-saving tips: 

  • Fly in May when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Thomas  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Thomas from Ottawa 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Thomas with Expedia today.

Ottawa to St. Thomas Flights

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