What are the cheapest airlines flying from St. Louis to Halifax round-trip?

Our cheapest airline available from St. Louis to Halifax is American Airlines. Our recent data shows that you can find tickets from as low as $438 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at $470 and $564 round-trip. You may be able to fly from St. Louis to Halifax for 10% less than the average price by searching for these airlines.

What is the cheapest month to book a flight from St. Louis to Halifax?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Halifax (average of $375). Flying from St. Louis to Halifax in May is currently the most expensive (average of $501). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from St. Louis to Halifax?

Travelers seeking maximum savings on their St. Louis to Halifax flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from St. Louis to Halifax?

Before booking your flight from St. Louis to Halifax check out the most popular airlines for this route: American Airlines, Air Canada or United Airlines.

What is the cheapest day to fly round-trip from St. Louis to Halifax?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from St. Louis to Halifax?

January is one of the best times of the year to fly to Halifax from St. Louis. Prices for January average $491 per person but you can even find prices for as low as $191. The most expensive prices can be found in the month of February. Opting for a January flight can save you 43% on your journey compared to booking in February

What is the cheapest time of day to fly from STL to YHZ?

One of the essential ways to save on airfare from St. Louis to Halifax is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 2% on airfare.

Most accurate provider : When it comes to deals on St. Louis-Halifax flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Halifax flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Halifax flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Halifax flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Halifax flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to Halifax that include hotel bookings?

Yes. In addition to deals on St. Louis to Halifax flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Halifax?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Halifax.

Can I find deals for business class flights from St. Louis to Halifax?

Yes. Cheapflights offers flight deals from St. Louis to Halifax by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$438+ Flights from St. Louis to Halifax

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1. Tell us where you want to go

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2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheap flight deals from St. Louis to Halifax

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$438 (American Airlines)
Popular in	February
Cheapest in	January
Average price	$204

Provider with most accurate pricing for Lambert-St Louis-Halifax Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Halifax Intl flights.

Search Deals

From Lambert-St Louis to Halifax Intl

Search Deals

High demand for flights, 9% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from St. Louis to Halifax

Cheapest flights from St. Louis to Halifax
Explore the most affordable flight options available from St. Louis to Halifax. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Thu 6/194:58 pmSTL - YHZ

1 stop18h 32mAmerican Airlines

Mon 6/233:20 pmYHZ - STL

1 stop19h 26mAmerican Airlines

Deal found 4/28

$438

Sun 6/18:10 amSTL - YHZ

2 stops11h 09mMultiple Airlines

Wed 6/47:00 amYHZ - STL

1 stop7h 36mMultiple Airlines

Deal found 4/29

$470

Sun 6/17:30 amSTL - YHZ

1 stop7h 34mUnited Airlines

Wed 6/47:00 amYHZ - STL

1 stop7h 36mUnited Airlines

Deal found 4/28

$512

Tue 5/62:30 pmSTL - YHZ

2 stops8h 00mAir Canada

Fri 5/91:30 pmYHZ - STL

1 stop8h 13mAir Canada

Deal found 4/29

$564

Tue 5/65:37 pmSTL - YHZ

2 stops25h 08mWestJet

Fri 5/96:00 pmYHZ - STL

2 stops28h 39mWestJet

Deal found 4/29

$565

Wed 7/910:46 amSTL - YHZ

2 stops10h 43mDelta

Sun 7/131:20 pmYHZ - STL

2 stops12h 33mDelta

Deal found 4/28

$670

Best flights from St. Louis to Halifax
Discover carefully curated flight deals from St. Louis to Halifax that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Thu 6/194:58 pmSTL - YHZ

1 stop18h 32mAmerican Airlines

Mon 6/233:20 pmYHZ - STL

1 stop19h 26mAmerican Airlines

Deal found 4/28

$438

Sun 6/18:10 amSTL - YHZ

2 stops15h 59mUnited Airlines

Wed 6/47:00 amYHZ - STL

1 stop7h 36mUnited Airlines

Deal found 4/29

$470

Sun 6/16:30 amSTL - YHZ

2 stops11h 09mMultiple Airlines

Wed 6/45:45 amYHZ - STL

2 stops8h 51mMultiple Airlines

Deal found 4/29

$475

Tue 5/62:30 pmSTL - YHZ

2 stops8h 00mAir Canada

Fri 5/91:30 pmYHZ - STL

1 stop8h 13mAir Canada

Deal found 4/29

$564

Tue 5/65:37 pmSTL - YHZ

2 stops25h 08mWestJet

Fri 5/96:00 pmYHZ - STL

2 stops28h 39mWestJet

Deal found 4/29

$565

Wed 7/910:46 amSTL - YHZ

2 stops10h 43mDelta

Sun 7/131:20 pmYHZ - STL

2 stops12h 33mDelta

Deal found 4/28

$670

Last-minute flights from St. Louis to Halifax
Discover last-minute flight deals from St. Louis to Halifax. Data last updated April 30, 2025 and is based on user searches.

Tue 5/62:30 pmSTL - YHZ

2 stops8h 00mAir Canada

Fri 5/91:30 pmYHZ - STL

1 stop8h 13mAir Canada

Deal found 4/29

$564

Tue 5/65:37 pmSTL - YHZ

2 stops25h 08mWestJet

Fri 5/96:00 pmYHZ - STL

2 stops28h 39mWestJet

Deal found 4/29

$565

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Halifax that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Thu 6/19

4:58 pm-1:30 pm

1 stop18h 32m

Halifax Intl

Mon 6/23

3:20 pm-8:46 am

1 stop19h 26m

$438

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sun 6/1

8:10 am-2:09 am

2 stops15h 59m

Halifax Intl

Wed 6/4

7:00 am-12:36 pm

1 stop7h 36m

$470

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sun 6/1

6:30 am-7:39 pm

2 stops11h 09m

Halifax Intl

Wed 6/4

5:45 am-12:36 pm

2 stops8h 51m

$475

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 5/6

2:30 pm-12:30 am

2 stops8h 00m

Halifax Intl

Fri 5/9

1:30 pm-7:43 pm

1 stop8h 13m

$564

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 5/6

5:37 pm-8:45 pm

2 stops25h 08m

Halifax Intl

Fri 5/9

6:00 pm-8:39 pm

2 stops28h 39m

$565

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 7/9

10:46 am-11:29 pm

2 stops10h 43m

Halifax Intl

Sun 7/13

1:20 pm-11:53 pm

2 stops12h 33m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from St. Louis to Halifax

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Halifax in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Halifax flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Halifax flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Halifax flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Halifax flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Halifax flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Halifax

Have a flexible travel schedule? Discover the best time to fly to Halifax from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Halifax

Rainfall in Halifax by month

In terms of precipitation, rainfall in Halifax ranges from 3.6 - 5.6 inches per month. December is typically the wettest month, when rainfall can reach 5.6 in. August is typically the driest time to visit Halifax when rainfall is around 3.6 in.

Temperature in Halifax by month

If weather is an important factor for your trip to Halifax, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Halifax

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,936 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,826 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

9,242 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Halifax round-trip?
Our cheapest airline available from St. Louis to Halifax is American Airlines. Our recent data shows that you can find tickets from as low as $438 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at $470 and $564 round-trip. You may be able to fly from St. Louis to Halifax for 10% less than the average price by searching for these airlines.
Can I find deals for flights from St. Louis to Halifax that include hotel bookings?
Yes. In addition to deals on St. Louis to Halifax flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Halifax?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Halifax.
Can I find deals for business class flights from St. Louis to Halifax?
Yes. Cheapflights offers flight deals from St. Louis to Halifax by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Halifax?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Halifax (average of $375). Flying from St. Louis to Halifax in May is currently the most expensive (average of $501). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Dartmouth

Bridgewater

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Alternative routes for St. Louis to Halifax

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Other flights to Halifax

Top 3 airlines flying from St. Louis to Halifax

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$191	Average$553	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$191	Average$475	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$350	Average$548	FlexibilityNo cancel fee	On-time69%

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$438+ Cheap flights from St. Louis (STL) to Halifax (YHZ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Halifax with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Halifax

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Halifax

Cheapest flights from St. Louis to HalifaxExplore the most affordable flight options available from St. Louis to Halifax. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from St. Louis to Halifax. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Halifax that are best for you.

Compare providers for flights from St. Louis to Halifax

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Halifax in April.

Best time to book a flight from St. Louis to Halifax

Have a flexible travel schedule? Discover the best time to fly to Halifax from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Halifax

Rainfall in Halifax by month

Plan your trip to Halifax by taking into account the average rainfall totals by month.

Temperature in Halifax by month

Plan your trip to Halifax by taking into account the average temperature totals by month.

Reviews of airlines servicing Halifax

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Halifax. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to Halifax round-trip?

Can I find deals for flights from St. Louis to Halifax that include hotel bookings?

How can I find direct flights from St. Louis to Halifax?

Can I find deals for business class flights from St. Louis to Halifax?

What is the cheapest month to book a flight from St. Louis to Halifax?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Halifax

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from St. Louis to Halifax

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Cheapest flights from St. Louis to Halifax
Explore the most affordable flight options available from St. Louis to Halifax. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.