How do I get Price Alerts for flights from St. Louis to Sydney, Nova Scotia?

Price Alerts will notify you by email when the price for flights to Sydney, Nova Scotia from St. Louis decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from St. Louis to Sydney, Nova Scotia with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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

Prices for flights from Lambert-St Louis Airport to Sydney Airport are updated daily.

How old do you have to be to fly from Lambert-St Louis Airport to Sydney Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Sydney Airport.

What documentation or ID do you need to fly to Sydney Airport?

The required travel and health documents for your Sydney Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,032 Cheap Flights from St. Louis to Sydney, Nova Scotia in 2026

Find the cheapest flights from St. Louis to Sydney

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 12:26 amSTL Lambert-St Louis-YQY Sydney

14h 56m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:45 am - 3:26 pmYQY Sydney-STL Lambert-St Louis

11h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,032Air Canada

Tue, Jan 26 - Thu, Jan 28

2:40 pm - 12:45 amSTL Lambert-St Louis-YQY Sydney

8h 05m1 stop Toronto Pearson Intl

5:05 am - 2:00 pmYQY Sydney-STL Lambert-St Louis

10h 55m1 stop Toronto Pearson Intl

$1,057Air Canada

Wed, Oct 14 - Wed, Oct 21

9:22 am - 12:26 amSTL Lambert-St Louis-YQY Sydney

13h 04m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:45 am - 3:26 pmYQY Sydney-STL Lambert-St Louis

11h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,146Air Canada

Tue, Jan 26 - Thu, Jan 28

7:30 am - 12:26 amSTL Lambert-St Louis-YQY Sydney

14h 56m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:45 am - 3:26 pmYQY Sydney-STL Lambert-St Louis

11h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,166Air Canada

Tue, Jan 26 - Thu, Jan 28

9:22 am - 12:26 amSTL Lambert-St Louis-YQY Sydney

13h 04m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:45 am - 3:26 pmYQY Sydney-STL Lambert-St Louis

11h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,166Air Canada

Tue, Jan 26 - Thu, Jan 28

2:40 pm - 12:45 amSTL Lambert-St Louis-YQY Sydney

8h 05m1 stop Toronto Pearson Intl

5:05 am - 2:17 pmYQY Sydney-STL Lambert-St Louis

11h 12m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$1,173Air Canada

Wed, Oct 14 - Wed, Oct 21

11:35 am - 12:45 amSTL Lambert-St Louis-YQY Sydney

11h 10m2 stops Chicago O'Hare Intl Toronto Pearson Intl

5:05 am - 12:13 pmYQY Sydney-STL Lambert-St Louis

9h 08m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$1,177Air Canada

Wed, Oct 14 - Wed, Oct 21

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Air Canada flights from St. Louis to Sydney, Nova Scotia

Our best Air Canada deals on St. Louis to Sydney, Nova Scotia flight tickets

Air Canada

Jan 26

STL7:30 amLambert-St Louis

14h 56m

2 stops

YQY12:26 amSydney

Jan 28

YQY5:45 amSydney

11h 41m

2 stops

STL3:26 pmLambert-St Louis

$1,032

Air Canada

Oct 14

STL2:40 pmLambert-St Louis

8h 05m

1 stop

YQY12:45 amSydney

Oct 21

YQY5:05 amSydney

10h 55m

1 stop

STL2:00 pmLambert-St Louis

$1,057

Air Canada

Jan 26

STL9:22 amLambert-St Louis

13h 04m

2 stops

YQY12:26 amSydney

Jan 28

YQY5:45 amSydney

11h 41m

2 stops

STL3:26 pmLambert-St Louis

$1,146

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Sydney, Nova Scotia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Tue 1/26

7:30 am-12:26 am

2 stops14h 56m

Sydney

Thu 1/28

5:45 am-3:26 pm

2 stops11h 41m

$1,032

Quickest round-trip

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Wed 10/14

2:40 pm-12:45 am

1 stop8h 05m

Sydney

Wed 10/21

5:05 am-2:00 pm

1 stop10h 55m

$1,057

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Tue 1/26

9:22 am-12:26 am

2 stops13h 04m

Sydney

Thu 1/28

5:45 am-3:26 pm

2 stops11h 41m

$1,146

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Tue 1/26

7:30 am-12:26 am

2 stops14h 56m

Sydney

Thu 1/28

5:45 am-3:26 pm

2 stops11h 41m

$1,166

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Tue 1/26

9:22 am-12:26 am

2 stops13h 04m

Sydney

Thu 1/28

5:45 am-3:26 pm

2 stops11h 41m

$1,166

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Wed 10/14

2:40 pm-12:45 am

1 stop8h 05m

Sydney

Wed 10/21

5:05 am-2:17 pm

2 stops11h 12m

$1,173

St. LouisSydney

STL Lambert-St Louis - YQY Sydney

STLYQY

Lambert-St Louis

Wed 10/14

11:35 am-12:45 am

2 stops11h 10m

Sydney

Wed 10/21

5:05 am-12:13 pm

2 stops9h 08m

$1,177

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Sydney, Nova Scotia

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Sydney, Nova Scotia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Sydney, Nova Scotia (STL to YQY) flight deals and tips

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

Best Price Found	$1,032
Fastest flight time	14h 56m
Direct flights	None

The best flight deal from St. Louis to Sydney, Nova Scotia found on momondo in the last 72 hours is $1,032

The fastest flight from St. Louis to Sydney, Nova Scotia takes 14h 56m

There are no direct flights from St. Louis to Sydney, Nova Scotia. There are no popular flight routes from St. Louis to Sydney, Nova Scotia.

Search flight deals

Frequently asked questions about flying from St. Louis to Sydney, Nova Scotia

How far is Lambert-St Louis to Sydney by plane?
Sydney is 1604.6 mi away from Lambert-St Louis. Flights usually cover this in 14h 56m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Sydney Airport?
Prices for flights from Lambert-St Louis Airport to Sydney Airport are updated daily.
How old do you have to be to fly from Lambert-St Louis Airport to Sydney Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Sydney Airport.
What documentation or ID do you need to fly to Sydney Airport?
The required travel and health documents for your Sydney Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from St. Louis to Sydney, Nova Scotia

How do I get Price Alerts for flights from St. Louis to Sydney, Nova Scotia?
Price Alerts will notify you by email when the price for flights to Sydney, Nova Scotia from St. Louis decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from St. Louis to Sydney, Nova Scotia with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Cheticamp

Inverness

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Sydney. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Sydney from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between St. Louis and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from St. Louis to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney, Nova Scotia 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.

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Airports servicing Nova Scotia

Halifax Intl Airport

Cheap flights from St. Louis to Sydney from $1,032

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Sydney departing on 1/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from St. Louis to Sydney, Nova Scotia

Our best Air Canada deals on St. Louis to Sydney, Nova Scotia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Sydney, Nova Scotia that are best for you.

When to book flights from St. Louis to Sydney, Nova Scotia

Cheap St. Louis to Sydney, Nova Scotia (STL to YQY) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Sydney, Nova Scotia

Frequently asked questions about flying from St. Louis to Sydney, Nova Scotia

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney, Nova Scotia 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.

Find better results for your trip to Canada

Airports servicing Nova Scotia

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

Popular cities in Canada

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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