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Cheap flights from Missouri to Sydney, NS from C$ 425

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQY
17 Jun — 24 Jun1
1 adult

Cheap flight deals from Missouri to Sydney

Keep the following information in mind while searching for Missouri to Sydney flight deals. Data was last updated 12 June 2025.

Round-trip from

C$ 1,259

One-way from

C$ 425
Air Canada
  • Air Canada
  • 20/7-26/7
  • 2 total stops
  • 23h 52m total
  • Missouri to Sydney
Search Deals
15/9
  • 15/9
  • 3 total stops
  • 31h 01m total
  • Missouri to Sydney
Search Deals

Find flight deals from Missouri to Sydney

Cheapest flights from Missouri to Sydney
Explore the most affordable flight options available from Missouri to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Sun 20/74:00 p.m.STL - YQY
1 stop7h 17mAir Canada
Sat 26/75:10 a.m.YQY - STL
1 stop16h 35mAir Canada
Deal found 10/6C$ 1,259

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri to Sydney 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 12 June 2025.
Use the filters below to find and compare flights from Missouri to Sydney that are best for you.

Fly from

Missouri

Fly to

Sydney

Route

Depart

Return

Price

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sun 20/7

4:00 p.m.-1:17 a.m.

1 stop7h 17m

Sydney

Sat 26/7

5:10 a.m.-7:45 p.m.

1 stop16h 35m

C$ 1,259

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Mon 15/9

9:50 a.m.-6:51 p.m.

3 stops31h 01m

C$ 425

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Mon 15/9

4:05 p.m.-11:55 p.m.

1 stop5h 50m

C$ 580

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Best time to book a flight from Missouri to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Missouri 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 Missouri to Sydney

Rainfall in Sydney by month

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

In terms of precipitation, rainfall in Sydney, Nova Scotia ranges from 89.0 - 167.0 mm per month. December is typically the wettest month, when rainfall can reach 167.0 mm. July is typically the driest time to visit Sydney, Nova Scotia when rainfall is around 89.0 mm.

Temperature in Sydney by month

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

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 18.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 12 June 2025.
Air Canada
7.1
Good
9,537 reviews
Check prices

Entertainment

6.8

Overall

7.1

Boarding

7.3

Food

6.3

Crew

7.8

Comfort

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2024

YYT - YHZ

No leg room plane was so small no room to move no room to sit squat in your seat my legs were so swollen up at the end of flight
Air Canada
7.1
Good
9,537 reviews
Air Canada
7.1
Good
9,537 reviews
Check prices

Entertainment

6.8

Overall

7.1

Boarding

7.3

Food

6.3

Crew

7.8

Comfort

7.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2024

YYT - YHZ

No leg room plane was so small no room to move no room to sit squat in your seat my legs were so swollen up at the end of flight

Related info for your journey

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

  • What airport do you fly into for flights to Sydney from Missouri?

    For a flight from Missouri to Sydney, you will be flying into Sydney. Sydney (YQY) is just 11.2 km from the centre of the city.

  • Can I find deals for flights from Missouri to Sydney that include hotel bookings?

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

  • How can I find direct flights from Missouri to Sydney?

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

  • Can I find deals for business class flights from Missouri to Sydney?

    Yes. Cheapflights offers flight deals from Missouri 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.

  • What is the cheapest month to book a flight from Missouri to Sydney, Nova Scotia?

    Currently, January is the cheapest month in which you can book a flight from Missouri to Sydney, Nova Scotia (average of C$ 375). Flying from Missouri to Sydney, Nova Scotia in December is currently the most expensive (average of C$ 682). 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

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Fly with Cheapflights

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How does Cheapflights help users find flights from Missouri to Sydney?

Deals for Missouri to Sydney 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 Missouri to Sydney?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Missouri to Sydney for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Missouri to Sydney with no change fees?

Certainly. Search results for flights to Sydney from Missouri shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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