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Cheap flights from Missouri to Sydney from $694

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Sydney departing on 4/9. 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:10 am - 11:24 pm
STL
-
YQY
12h 14m
2 stops
Air Canada Logo
5:30 am - 10:56 pm
YQY
-
STL
19h 26m
2 stops
$694Air Canada
Thu, Apr 9 - Thu, Apr 16
Air Canada Logo
9:16 am - 11:24 pm
STL
-
YQY
12h 08m
2 stops
Air Canada Logo
5:30 am - 9:08 pm
YQY
-
STL
17h 38m
2 stops
$776Air Canada
Sat, Apr 4 - Tue, Apr 7
Air Canada Logo
4:05 pm - 11:46 am
STL
-
YQY
17h 41m
1 stop
Air Canada Logo
5:30 am - 10:56 pm
YQY
-
STL
19h 26m
2 stops
$807Air Canada
Thu, Apr 9 - Thu, Apr 16
Air Canada Logo
9:16 am - 11:24 pm
STL
-
YQY
12h 08m
2 stops
Air Canada Logo
5:30 am - 9:08 pm
YQY
-
STL
17h 38m
2 stops
$838Air Canada
Sat, Apr 4 - Tue, Apr 7
Air Canada Logo
11:15 am - 11:24 pm
STL
-
YQY
10h 09m
2 stops
Air Canada Logo
5:30 am - 9:08 pm
YQY
-
STL
17h 38m
2 stops
$839Air Canada
Sat, Apr 4 - Tue, Apr 7
Air Canada Logo
4:05 pm - 11:46 am
STL
-
YQY
17h 41m
1 stop
Air Canada Logo
5:30 am - 9:08 pm
YQY
-
STL
17h 38m
2 stops
$895Air Canada
Sat, Apr 4 - Tue, Apr 7
Air Canada Logo
4:05 pm - 11:46 am
STL
-
YQY
17h 41m
1 stop
Air Canada Logo
5:30 am - 9:08 pm
YQY
-
STL
17h 38m
2 stops
$965Air Canada
Sat, Apr 4 - Tue, Apr 7
Air Canada Logo
4:05 pm - 11:46 am
STL
-
YQY
17h 41m
1 stop
Air Canada Logo
12:30 pm - 3:24 pm
YQY
-
STL
28h 54m
1 stop
$1,020Air Canada
Thu, Apr 9 - Thu, Apr 16

Air Canada flights from Missouri to Sydney, Nova Scotia

Our best Air Canada deals on Missouri to Sydney, Nova Scotia flight tickets
Air Canada
Apr 9
STL9:10 amLambert-St Louis
12h 14m
2 stops
YQY11:24 pmSydney
Apr 16
YQY5:30 amSydney
19h 26m
2 stops
STL10:56 pmLambert-St Louis
$694
Air Canada
Apr 4
STL9:16 amLambert-St Louis
12h 08m
2 stops
YQY11:24 pmSydney
Apr 7
YQY5:30 amSydney
17h 38m
2 stops
STL9:08 pmLambert-St Louis
$776
Air Canada
Apr 9
STL4:05 pmLambert-St Louis
17h 41m
1 stop
YQY11:46 amSydney
Apr 16
YQY5:30 amSydney
19h 26m
2 stops
STL10:56 pmLambert-St Louis
$807

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Sydney, Nova Scotia 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 February 24, 2026.
Use the filters below to find and compare flights from Missouri to Sydney, Nova Scotia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Thu 4/9

9:10 am-11:24 pm

2 stops12h 14m

Sydney

Thu 4/16

5:30 am-10:56 pm

2 stops19h 26m

$694

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 4/4

9:16 am-11:24 pm

2 stops12h 08m

Sydney

Tue 4/7

5:30 am-9:08 pm

2 stops17h 38m

$776

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Thu 4/9

4:05 pm-11:46 am

1 stop17h 41m

Sydney

Thu 4/16

5:30 am-10:56 pm

2 stops19h 26m

$807

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 4/4

9:16 am-11:24 pm

2 stops12h 08m

Sydney

Tue 4/7

5:30 am-9:08 pm

2 stops17h 38m

$838

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 4/4

11:15 am-11:24 pm

2 stops10h 09m

Sydney

Tue 4/7

5:30 am-9:08 pm

2 stops17h 38m

$839

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

$895

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

Thu 4/9

4:05 pm-11:46 am

1 stop17h 41m

Sydney

Thu 4/16

12:30 pm-3:24 pm

1 stop28h 54m

$1,020

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Missouri to Sydney, Nova Scotia flight deals and tips

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

Fastest flight time

12h 08m

Direct flights

None
The fastest flight from Missouri to Sydney, Nova Scotia takes 12h 08m
There are no direct flights from Missouri to Sydney, Nova Scotia. There are no popular flight routes from Missouri to Sydney, Nova Scotia.
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  • When did momondo last update prices for flights from Missouri to Sydney Airport?

    Prices for flights from Missouri to Sydney Airport refresh daily.

  • How old do you have to be to fly from Missouri to Sydney 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 Missouri to Sydney Airport.

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

    The travel and health documents required for your trip to Sydney Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Missouri to Sydney, Nova Scotia?

    Price Alerts will notify you by email when the price for flights to Sydney, Nova Scotia from Missouri 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 Missouri to Sydney, Nova Scotia with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Cheticamp
Inverness

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Sydney?

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

Can I find flights from Missouri to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Missouri to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Missouri to Sydney?

momondo helps you find the best flight between Missouri 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 Missouri to Sydney right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Missouri to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Sydney, Nova Scotia trip

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Find better results for your trip to Canada

Airports servicing Nova Scotia

Halifax Intl Airport