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Montreal to Sydney YHU, YUL → SYD

St. Hubert Airport (YHU), Montreal-Pierre Elliott Trudeau International Airport (YUL) → Sydney (Kingsford Smith) Airport (SYD)

The cheapest return found recently is C$1,909 (US$1,349) with Air Canada, 5 Dec – 18 Dec, found today.

Return

The cheapest return fare on each of 3 departure dates is usually C$1,725 (US$1,219) to C$2,441 (US$1,725).

Cheapest return found recently

C$1,909 (US$1,349)

5 Dec – 18 Dec · Air Canada

Montreal-Pierre Elliott Trudeau International Airport (YUL) → Sydney (Kingsford Smith) Airport (SYD)

Leaves 9:20 p.m. · Return leaves 7:30 a.m. · 72 h 20 min of travel, both ways together

out 1 stop, back 2 stops

found today

See prices for these datesCheck today's price

Cheapest nonstop return

None seen yet.

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Found recently, and the cheapest we hold

Cheapest found recently C$1,909 (US$1,349) 5 Dec – 18 Decfound todaySee prices for these dates

Cheapest we hold, of any age C$1,401 (US$990) 5 Dec – 19 Decfound 2 days agoSee prices for these dates

What have prices looked like?

Over 22 days, 24 Sept to 18 Oct, the cheapest return we saw each day was C$1,401 (US$990) to C$2,834 (US$2,002).

C$1,909 (US$1,349), the cheapest return found recently, sits here in that range of C$1,401 (US$990) to C$2,834 (US$2,002).

22 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good return price?

Compared with the cheapest return fare on each of 3 departure dates from 30 Nov to 1 Jan 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 13-night return fares leaving within 3 days of 5 Dec to compare.

Every date we hold

13 fares on 3 departure dates

30 Nov – 4 Jan 2027: C$2,834 (US$2,002), found 4 days ago5 Dec – 19 Dec: C$1,401 (US$990), found 2 days ago1 Jan 2027 – 22 Jan 2027: C$2,048 (US$1,447), found 2 days agoNovDecJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
30 Nov – 4 Jan 2027C$2,834 (US$2,002)Qatar AirwaysMontreal-Pierre Elliott Trudeau International Airport (YUL) → Sydney (Kingsford Smith) Airport (SYD)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
5 Dec – 19 DecC$1,401 (US$990)United AirlinesMontreal-Pierre Elliott Trudeau International Airport (YUL) → Sydney (Kingsford Smith) Airport (SYD)out 2 stops, back 2 stopsfound 2 days agoSee prices for these dates
1 Jan 2027 – 22 Jan 2027C$2,048 (US$1,447)American AirlinesMontreal-Pierre Elliott Trudeau International Airport (YUL) → Sydney (Kingsford Smith) Airport (SYD)out 2 stops, back 2 stopsfound 2 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from C$1,401 (US$990).

November 2026From C$2,834 (US$2,002)1 departure date30 Nov – 4 Jan 2027 · found 4 days agoSee prices for these dates
December 2026From C$1,401 (US$990)Cheapest seen1 departure date5 Dec – 19 Dec · found 2 days agoSee prices for these dates
January 2027From C$2,048 (US$1,447)1 departure date1 Jan 2027 – 22 Jan 2027 · found 2 days agoSee prices for these dates

Airlines on the cheapest dates: Qatar Airways, United Airlines, American Airlines.

Premium cabin fares from Montreal to Sydney

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

Today's prices for 5 Dec – 18 Dec in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Montreal to Sydney?

Return

Not enough history yet: in 22 days of return prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.

Live price for these dates

The cheapest return found recently is for 5 Dec – 18 Dec. A live search on this page shows what those dates cost now, for one adult in economy.

Prices are what travelers' searches on Aviasales found in the last 7 days: the price the seller showed on Aviasales; bags may cost extra. Canadian dollars at the Bank of Canada rate of 2026-10-16, US dollars in brackets. Fares change, so check today's price before you book. How our prices work