How long is the flight from St. Louis to Sydney, Nova Scotia?

A quick flight from St. Louis to Sydney, Nova Scotia can take about 17h 41m. Air Canada provides one of the quickest options available for as low as $965. The distance from St. Louis to Sydney, Nova Scotia is about 1616 mi.

In terms of precipitation, rainfall in Sydney, Nova Scotia ranges from 3.5 - 6.6 inches per month. December is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Sydney, Nova Scotia when rainfall is around 3.5 in.

If weather is an important factor for your trip to Sydney, Nova Scotia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

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

When flying from St. Louis to Sydney, Nova Scotia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on St. Louis-Sydney, Nova Scotia flights, Cheapflights users trust FlightHub the most. FlightHub 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-Sydney, Nova Scotia 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 Sydney that include hotel bookings?

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

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

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

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

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

$839+ Flights from St. Louis to Sydney, NS

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Cheap flight deals from St. Louis to Sydney

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Cheapest flights from St. Louis to Sydney
Explore the most affordable flight options available from St. Louis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

Sat 4/411:15 am

STL

YQY

2 stops10h 09m

Air Canada

Tue 4/75:30 am

YQY

STL

2 stops17h 38m

Air Canada

Deal found 2/19

$839

Sun 4/510:00 am

STL

YQY

2 stops11h 24m

Air Canada

Sun 4/1212:30 pm

YQY

STL

1 stop28h 54m

Air Canada

Deal found 2/19

$1,134

Find flight deals from St. Louis to Sydney

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$839 (Air Canada)

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

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From Lambert-St Louis to Sydney

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Fly from

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Route

Depart

Return

Price

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 4/4

4:05 pm-11:46 am

1 stop17h 41m

Sydney

Tue 4/7

5:30 am-9:08 pm

2 stops17h 38m

$965

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sun 4/5

10:00 am-11:24 pm

2 stops11h 24m

Sydney

Sun 4/12

12:30 pm-3:24 pm

1 stop28h 54m

$1,134

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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

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

STL-YQY

Estimated round-trip price

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Related info for your journey

How long is the flight from St. Louis to Sydney, Nova Scotia?
A quick flight from St. Louis to Sydney, Nova Scotia can take about 17h 41m. Air Canada provides one of the quickest options available for as low as $965. The distance from St. Louis to Sydney, Nova Scotia is about 1616 mi.
Can I find deals for flights from St. Louis to Sydney that include hotel bookings?
Yes. In addition to deals on St. Louis to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sydney.
Can I find deals for business class flights from St. Louis to Sydney?
Yes. Cheapflights offers flight deals from St. Louis to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$839+ Cheap flights from St. Louis (STL) to Sydney, NS (YQY)

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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Sydney with Cheapflights

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Cheap flight deals from St. Louis to Sydney

Cheapest flights from St. Louis to SydneyExplore the most affordable flight options available from St. Louis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

Explore the most affordable flight options available from St. Louis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

Best flights from St. Louis to SydneyDiscover carefully curated flight deals from St. Louis to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2026.

Discover carefully curated flight deals from St. Louis to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2026.

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How long is the flight from St. Louis to Sydney, Nova Scotia?

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

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

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

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Cheapest flights from St. Louis to Sydney
Explore the most affordable flight options available from St. Louis to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

Best flights from St. Louis to Sydney
Discover carefully curated flight deals from St. Louis to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2026.