Cheap flights from Halifax to St. Louis from $172

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Halifax to St. Louis departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Halifax to St. Louis

Cheap round-trip flights

United Airlines Logo
5:25 am - 3:44 pmYHZ-STL
12h 19m2 stops
United Airlines Logo
6:30 am - 11:55 pmSTL-YHZ
15h 25m2 stops
$376United Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
American Airlines Logo
2:15 pm - 1:44 pmYHZ-STL
25h 29m2 stops
American Airlines Logo
6:00 am - 1:30 pmSTL-YHZ
5h 30m1 stop
$420American Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
United Airlines Logo
7:00 am - 10:48 amYHZ-STL
5h 48m1 stop
United Airlines Logo
6:30 am - 11:55 pmSTL-YHZ
15h 25m2 stops
$462United Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
United Airlines Logo
5:25 am - 3:44 pmYHZ-STL
12h 19m2 stops
United Airlines Logo
11:10 am - 11:55 pmSTL-YHZ
10h 45m2 stops
$469United Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 20
United Airlines Logo
5:25 am - 3:44 pmYHZ-STL
12h 19m2 stops
United Airlines Logo
12:25 pm - 1:49 amSTL-YHZ
11h 24m2 stops
$475United Airlines
Find Deal
Thu, Oct 16 - Sat, Oct 18
American Airlines Logo
2:15 pm - 9:41 amYHZ-STL
21h 26m1 stop
American Airlines Logo
8:04 pm - 1:30 pmSTL-YHZ
15h 26m2 stops
$484American Airlines
Find Deal
Fri, Oct 17 - Wed, Oct 22
Air Canada Logo
7:15 am - 3:18 pmYHZ-STL
10h 03m2 stops
Air Canada Logo
9:15 am - 10:38 pmSTL-YHZ
11h 23m2 stops
$562Air Canada
Find Deal
Thu, Oct 16 - Sun, Oct 19
WestJet Logo
8:30 am - 3:55 pmYHZ-STL
9h 25m2 stops
WestJet Logo
5:15 pm - 7:13 amSTL-YHZ
35h 58m2 stops
$571WestJet
Find Deal
Thu, Oct 9 - Mon, Oct 13
Air Canada Logo
5:25 am - 7:38 pmYHZ-STL
16h 13m1 stop
Air Canada Logo
1:30 pm - 10:38 pmSTL-YHZ
7h 08m1 stop
$592Air Canada
Find Deal
Thu, Oct 9 - Mon, Oct 13
WestJet Logo
1:43 pm - 12:35 pmYHZ-STL
24h 52m1 stop
WestJet Logo
5:40 pm - 12:53 pmSTL-YHZ
17h 13m1 stop
$614WestJet
Find Deal
Mon, Oct 20 - Tue, Oct 21

WestJet flights from Halifax to St. Louis

Our best WestJet deals on Halifax to St. Louis flight tickets
WestJet
Oct 9
YHZ8:30 amHalifax Intl
9h 25m
2 stops
STL3:55 pmLambert-St Louis
Oct 13
STL5:15 pmLambert-St Louis
35h 58m
2 stops
YHZ7:13 amHalifax Intl
WestJet
Oct 20
YHZ1:43 pmHalifax Intl
24h 52m
1 stop
STL12:35 pmLambert-St Louis
Oct 21
STL5:40 pmLambert-St Louis
17h 13m
1 stop
YHZ12:53 pmHalifax Intl
WestJet
Oct 9
YHZ8:30 amHalifax Intl
11h 17m
2 stops
STL5:47 pmLambert-St Louis
Oct 13
STL5:40 pmLambert-St Louis
17h 13m
1 stop
YHZ12:53 pmHalifax Intl

Air Canada flights from Halifax to St. Louis

Our best Air Canada deals on Halifax to St. Louis flight tickets
Air Canada
Oct 16
YHZ7:15 amHalifax Intl
10h 03m
2 stops
STL3:18 pmLambert-St Louis
Oct 19
STL9:15 amLambert-St Louis
11h 23m
2 stops
YHZ10:38 pmHalifax Intl
Air Canada
Oct 9
YHZ5:25 amHalifax Intl
16h 13m
1 stop
STL7:38 pmLambert-St Louis
Oct 13
STL1:30 pmLambert-St Louis
7h 08m
1 stop
YHZ10:38 pmHalifax Intl
Air Canada
Oct 10
YHZ5:25 amHalifax Intl
16h 13m
1 stop
STL7:38 pmLambert-St Louis
Oct 14
STL1:30 pmLambert-St Louis
7h 08m
1 stop
YHZ10:38 pmHalifax Intl

momondo 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Halifax to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sat 10/18

5:25 am-3:44 pm

2 stops12h 19m

Lambert-St Louis

Tue 10/21

6:30 am-11:55 pm

2 stops15h 25m

$376

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Fri 10/17

2:15 pm-1:44 pm

2 stops25h 29m

Lambert-St Louis

Sun 10/19

6:00 am-1:30 pm

1 stop5h 30m

$420

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Wed 10/15

7:00 am-10:48 am

1 stop5h 48m

Lambert-St Louis

Tue 10/21

6:30 am-11:55 pm

2 stops15h 25m

$462

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sat 10/18

5:25 am-3:44 pm

2 stops12h 19m

Lambert-St Louis

Mon 10/20

11:10 am-11:55 pm

2 stops10h 45m

$469

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 10/16

5:25 am-3:44 pm

2 stops12h 19m

Lambert-St Louis

Sat 10/18

12:25 pm-1:49 am

2 stops11h 24m

$475

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Fri 10/17

2:15 pm-9:41 am

1 stop21h 26m

Lambert-St Louis

Wed 10/22

8:04 pm-1:30 pm

2 stops15h 26m

$484

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 10/16

7:15 am-3:18 pm

2 stops10h 03m

Lambert-St Louis

Sun 10/19

9:15 am-10:38 pm

2 stops11h 23m

$562

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 10/9

8:30 am-3:55 pm

2 stops9h 25m

Lambert-St Louis

Mon 10/13

5:15 pm-7:13 am

2 stops35h 58m

$571

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 10/9

5:25 am-7:38 pm

1 stop16h 13m

Lambert-St Louis

Mon 10/13

1:30 pm-10:38 pm

1 stop7h 08m

$592

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 10/20

1:43 pm-12:35 pm

1 stop24h 52m

Lambert-St Louis

Tue 10/21

5:40 pm-12:53 pm

1 stop17h 13m

$614

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

How to get the cheapest flight ticket from Halifax to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, December is the cheapest month to fly from Halifax to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. The month of February is another great option to travel to St. Louis, with average flight prices from Halifax averaging around $292.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Halifax at noon is the least expensive time of day to depart. momondo users have found prices as low as $437 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $554 per ticket.

When to book flights from Halifax to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Halifax to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Halifax to St. Louis (YHZ to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Halifax to St. Louis

Direct flights

None
There are no direct flights from Halifax to St. Louis. There are no popular flight routes from Halifax to St. Louis.
  • How far is Halifax Intl to Lambert-St Louis by plane?

    Lambert-St Louis is 1428.1 mi away from Halifax Intl. A reasonable flight in good conditions will take 5h 48m.

  • When did momondo last update prices for flights from Halifax Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Halifax Intl Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Halifax Intl Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Halifax Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Halifax to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Halifax.

Can I find flights from Halifax to St. Louis with flexible booking policies on momondo?

Flights from Halifax to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Halifax to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Halifax. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Halifax to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Halifax to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/16
Thu 10/23

Find better results for your trip to the United States