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Cheap flights from Halifax to St. Louis from C$ 391

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
YHZ — STL
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Halifax to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Halifax to St. Louis
Explore the most affordable flight options available from Halifax to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Wed 19/117:00 a.m.YHZ - STL
2 stops9h 24mUnited Airlines
Fri 5/1211:25 a.m.STL - YHZ
2 stops10h 29mUnited Airlines
Deal found 27/10C$ 391
Thu 27/115:35 a.m.YHZ - STL
2 stops11h 54mAir Canada
Tue 2/124:05 p.m.STL - YHZ
1 stop6h 21mAir Canada
Deal found 28/10C$ 401
Wed 19/113:15 p.m.YHZ - STL
1 stop10h 29mMultiple Airlines
Fri 5/124:05 p.m.STL - YHZ
2 stops16h 26mMultiple Airlines
Deal found 27/10C$ 440
Wed 19/119:00 a.m.YHZ - STL
1 stop8h 29mAir Canada
Fri 5/124:05 p.m.STL - YHZ
1 stop6h 21mAir Canada
Deal found 27/10C$ 549
Tue 25/117:00 a.m.YHZ - STL
2 stops10h 46mUnited Airlines
Sun 30/116:30 a.m.STL - YHZ
2 stops15h 56mUnited Airlines
Deal found 26/10C$ 682
Tue 25/119:00 a.m.YHZ - STL
1 stop8h 29mAir Canada
Sun 30/114:05 p.m.STL - YHZ
1 stop15h 20mAir Canada
Deal found 26/10C$ 843

Cheap flight deals from Halifax to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Halifax (YHZ) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 October 2025.

Round-trip from

C$ 391

Popular in

September

Cheapest in

December

Average price

C$ 794
United Airlines
  • United Airlines
  • 7/4-8/4
  • 3 total stops
  • 18h 12m total
  • Halifax to St. Louis
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 250 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Halifax to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Halifax to St. Louis that are best for you.

Fly from

Halifax

Fly to

St. Louis

Route

Depart

Return

Price

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Wed 19/11

7:00 a.m.-2:24 p.m.

2 stops9h 24m

Lambert-St Louis

Fri 5/12

11:25 a.m.-11:54 p.m.

2 stops10h 29m

C$ 391

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 7/4

2:50 p.m.-9:55 p.m.

1 stop9h 05m

Lambert-St Louis

Wed 8/4

6:30 a.m.-1:54 p.m.

1 stop5h 24m

C$ 391

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 27/11

5:35 a.m.-3:29 p.m.

2 stops11h 54m

Lambert-St Louis

Tue 2/12

4:05 p.m.-12:26 a.m.

1 stop6h 21m

C$ 401

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Wed 19/11

3:15 p.m.-11:44 p.m.

1 stop10h 29m

Lambert-St Louis

Fri 5/12

4:05 p.m.-10:31 a.m.

2 stops16h 26m

C$ 440

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sat 8/11

5:05 a.m.-9:40 p.m.

2 stops18h 35m

C$ 507

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Fri 7/11

5:05 a.m.-3:29 p.m.

1 stop12h 24m

C$ 891

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sat 8/11

7:00 a.m.-3:29 p.m.

1 stop10h 29m

C$ 908

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Fri 7/11

10:40 p.m.-11:09 a.m.

3 stops38h 29m

C$ 1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Halifax 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 Halifax to St. Louis

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

Currently, December is the cheapest month in which you can book a flight from Halifax to St. Louis (average of C$ 204). Flying from Halifax to St. Louis in September is currently the most expensive (average of C$ 792). 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 29 October 2025.
Read through reviews of airlines operating flights from Halifax to St. Louis, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,372 reviews
United Airlines
7.4
Good
8,999 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • How long is the flight from Halifax to St. Louis?

    A quick flight from Halifax to St. Louis can take about 9h 24m. United Airlines provides one of the quickest options available for as low as C$ 391. Airlines will cover a distance of 2314 km.

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

    According to our current data, Air Canada (C$ 403), and United Airlines (C$ 408) offers the cheapest pricing from Halifax to St. Louis. Air Canada is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Halifax to St. Louis 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 Halifax to St. Louis?

    Currently, December is the cheapest month in which you can book a flight from Halifax to St. Louis (average of C$ 204). Flying from Halifax to St. Louis in September is currently the most expensive (average of C$ 792). 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

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chesterfield
St. Peters

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Alternative routes for Halifax to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Halifax to Kansas City flights
Charlottetown to St. Louis flights

Top 2 airlines flying from Halifax to St. Louis

Discover the top 2 airlines that operate flights from Halifax to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 403AverageC$ 613FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 408AverageC$ 681FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Halifax to St. Louis?

Deals for Halifax to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Halifax to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Halifax.

Can Cheapflights find flights from Halifax to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Halifax to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Halifax to St. Louis become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Halifax today and book when prices fit your budget.

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