$139 Cheap Flights from St. Louis (STL) to Halifax (YHZ)

View $139 flight on Wed, Aug 12, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Stanfield Intl. Airport (YHZ)

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Cheap Flights from St. Louis to Halifax (STL-YHZ)

Prices were available within the past 7 days and start at $139 for one-way flights and $290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, May 20 - Sun, May 24
STL
St. Louis
YHZ
Halifax
$290 Roundtrip, found 6 days ago
$290
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 20 from St. Louis to Halifax, returning Sun, May 24, priced at $290 found 6 days ago
Air Canada
Wed, Aug 12 - Wed, Aug 19
STL
St. Louis
YHZ
Halifax
$300 Roundtrip, found 2 days ago
$300
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Aug 12 from St. Louis to Halifax, returning Wed, Aug 19, priced at $300 found 2 days ago
Air Canada
Wed, Aug 12 - Wed, Aug 19
STL
St. Louis
YHZ
Halifax
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Aug 12 from St. Louis to Halifax, returning Wed, Aug 19, priced at $307 found 2 days ago
Air Canada
Wed, Apr 15 - Mon, Apr 20
STL
St. Louis
YHZ
Halifax
$308 Roundtrip, found 4 days ago
$308
Roundtrip
found 4 days ago
Select Air Canada flight, departing Wed, Apr 15 from St. Louis to Halifax, returning Mon, Apr 20, priced at $308 found 4 days ago
Air Canada
Wed, May 20 - Sun, May 24
STL
St. Louis
YHZ
Halifax
$318 Roundtrip, found 6 days ago
$318
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, May 20 from St. Louis to Halifax, returning Sun, May 24, priced at $318 found 6 days ago
Air Canada
Wed, Aug 12 - Wed, Aug 19
STL
St. Louis
YHZ
Halifax
$324 Roundtrip, found 2 days ago
$324
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Aug 12 from St. Louis to Halifax, returning Wed, Aug 19, priced at $324 found 2 days ago
United
Sat, Apr 25 - Mon, May 4
STL
St. Louis
YHZ
Halifax
$329 Roundtrip, found 4 days ago
$329
Roundtrip
found 4 days ago
Select United flight, departing Sat, Apr 25 from St. Louis to Halifax, returning Mon, May 4, priced at $329 found 4 days ago
Delta
Wed, Aug 12 - Wed, Aug 19
STL
St. Louis
YHZ
Halifax
$333 Roundtrip, found 2 days ago
$333
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Aug 12 from St. Louis to Halifax, returning Wed, Aug 19, priced at $333 found 2 days ago
American Airlines
Wed, Aug 12 - Wed, Aug 19
STL
St. Louis
YHZ
Halifax
$459 Roundtrip, found 2 days ago
$459
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Aug 12 from St. Louis to Halifax, returning Wed, Aug 19, priced at $459 found 2 days ago
WestJet
Wed, Jun 10 - Wed, Jun 17
STL
St. Louis
YHZ
Halifax
$835 Roundtrip, found 5 hours ago
$835
Roundtrip
found 5 hours ago
Select WestJet flight, departing Wed, Jun 10 from St. Louis to Halifax, returning Wed, Jun 17, priced at $835 found 5 hours ago

Find the cheapest month to fly from St. Louis (STL) to Halifax (YHZ)

April is typically the cheapest month to fly

From $306 - $905 per traveler.

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ) cost?
Grab a cheap one-way flight from $139 or cheap return flight from $290 from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ)?
The cheapest month to fly from STL to YHZ is May, when there's less demand. Off-peak season is typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to YHZ flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to YHZ?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ)?
Book a flight from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 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 Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ) last-minute?
Waiting until right before your break to book a ticket from STL to YHZ generally means paying more. While it's possible to find some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible for a better chance of scoring a bargain.
Is it cheaper to book a STL to YHZ flight and hotel package?
Opting for a STL to YHZ flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of hotels and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Stanfield Intl. Airport (YHZ)?
In most instances, you can reschedule or cancel your STL to YHZ flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need more details, head to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Stanfield Intl.
Airlines serving
Air Canada, Delta, United, WestJet
Roundtrip price
$289
Distance
1438 mi

Book with confidence

St. Louis to Halifax Flights

The cheapest times to fly from St. Louis to Halifax

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 St. Louis to Halifax are during the month of May. You can find some of the cheapest flights from St. Louis to Halifax with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Halifax

Sunday is one of the best days to book for cheap flights from St. Louis to Halifax: 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 St. Louis to Halifax

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 St. Louis to Halifax in 2025. You can also book with separate airlines for your outbound and return journeys, from $139 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 St. Louis to Halifax 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 St. Louis to Halifax 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.

 

St. Louis to Halifax Flights

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*Available to One Key members.