What is the cheapest airline that flies from Maine to Sydney Kingsford Smith?

Air Canada is the most popular carrier operating from Maine to Sydney Kingsford Smith

How long does it take to fly to Sydney?

Flight times from Maine to Sydney vary, but if you’re flying out of Portland and flying into Sydney (one of the most popular routes), then the duration is 25h 53m on average. Another popular route from Maine to Sydney is flying from Bangor to Sydney, which will take roughly 30h 06m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Maine to Sydney Kingsford Smith Airport?

Prices for flights from Maine to Sydney Kingsford Smith Airport refresh daily.

How many operators does momondo search for flights from Maine to Sydney Kingsford Smith Airport?

There are 10 operators available for flights from Maine to Sydney Kingsford Smith Airport as of December 2025.

How old do you have to be to fly from Maine to Sydney Kingsford Smith Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to Sydney Kingsford Smith Airport.

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

The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$543 Cheap Flights from Maine to Sydney in 2025/26

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Find the cheapest flights from Maine to Sydney

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Cheap round-trip flights

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5:20 pm - 9:00 am

BOS

SYD

23h 40m1 stop

7:05 am - 6:47 pm

SYD

BOS

27h 42m2 stops

$916Qantas Airways

Wed, Feb 11 - Wed, Feb 18

5:20 pm - 9:00 am

BOS

SYD

23h 40m1 stop

7:15 pm - 5:56 pm

SYD

BOS

38h 41m2 stops

$938Qantas Airways

Sun, Jan 25 - Mon, Feb 9

6:00 am - 12:35 pm

BOS

SYD

38h 35m2 stops

2:00 pm - 5:01 am

SYD

BOS

31h 01m2 stops

$950Multiple Airlines

Mon, Feb 2 - Tue, Feb 10

6:00 am - 12:35 pm

BOS

SYD

38h 35m2 stops

2:00 pm - 5:00 am

SYD

BOS

31h 00m2 stops

$969Multiple Airlines

Sat, Jan 31 - Sat, Feb 14

12:10 pm - 8:30 am

PWM

SYD

28h 20m2 stops

10:40 am - 10:27 pm

SYD

PWM

27h 47m2 stops

$1,589Delta

Wed, Feb 4 - Wed, Feb 11

5:18 am - 6:05 am

PWM

SYD

33h 47m2 stops

1:15 pm - 11:22 pm

SYD

PWM

25h 07m2 stops

$1,659Delta

Thu, Mar 19 - Mon, Mar 23

2:31 pm - 9:05 am

PWM

SYD

26h 34m2 stops

12:10 pm - 11:21 pm

SYD

PWM

27h 11m3 stops

$1,717United Airlines

Wed, Feb 4 - Wed, Feb 11

3:12 pm - 9:05 am

PWM

SYD

25h 53m2 stops

11:50 am - 6:56 pm

SYD

PWM

23h 06m2 stops

$1,817United Airlines

Thu, Feb 5 - Thu, Feb 12

3:05 pm - 9:35 am

PWM

SYD

26h 30m2 stops

11:20 am - 10:51 pm

SYD

PWM

51h 31m3 stops

$2,115Air Canada

Sat, Feb 28 - Wed, Mar 4

3:05 pm - 9:35 am

PWM

SYD

26h 30m2 stops

11:20 am - 10:51 pm

SYD

PWM

51h 31m3 stops

$2,124Air Canada

Sat, Feb 28 - Wed, Mar 4

Qantas Airways flights from Maine to Sydney

Our best Qantas Airways deals on Maine to Sydney flight tickets

Qantas Airways

Feb 11

BOS5:20 pmBoston Logan Intl

23h 40m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 18

SYD7:05 amSydney Kingsford Smith

27h 42m

2 stops

BOS6:47 pmBoston Logan Intl

$916

Find similar

Qantas Airways

Jan 25

BOS5:20 pmBoston Logan Intl

23h 40m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 9

SYD7:15 pmSydney Kingsford Smith

38h 41m

2 stops

BOS5:56 pmBoston Logan Intl

$938

Find similar

Qantas Airways

Feb 26

BOS4:45 pmBoston Logan Intl

24h 15m

1 stop

SYD9:00 amSydney Kingsford Smith

Mar 3

SYD7:15 pmSydney Kingsford Smith

39h 32m

2 stops

BOS6:47 pmBoston Logan Intl

$939

Find similar

Air Canada flights from Maine to Sydney

Our best Air Canada deals on Maine to Sydney flight tickets

Air Canada

Feb 24

BOS10:15 amBoston Logan Intl

31h 20m

2 stops

SYD9:35 amSydney Kingsford Smith

Mar 11

SYD10:20 amSydney Kingsford Smith

38h 12m

2 stops

BOS9:32 amBoston Logan Intl

$1,086

Find similar

Air Canada

Feb 24

BOS6:15 amBoston Logan Intl

35h 20m

1 stop

SYD9:35 amSydney Kingsford Smith

Mar 11

SYD10:20 amSydney Kingsford Smith

27h 17m

1 stop

BOS10:37 pmBoston Logan Intl

$1,097

Find similar

Air Canada

Mar 9

BOS10:15 amBoston Logan Intl

31h 20m

2 stops

SYD8:35 amSydney Kingsford Smith

Mar 20

SYD10:20 amSydney Kingsford Smith

26h 07m

2 stops

BOS9:27 pmBoston Logan Intl

$1,104

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Wed 2/11

5:20 pm-9:00 am

1 stop23h 40m

Sydney Kingsford Smith

Wed 2/18

7:05 am-6:47 pm

2 stops27h 42m

$916

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sun 1/25

5:20 pm-9:00 am

1 stop23h 40m

Sydney Kingsford Smith

Mon 2/9

7:15 pm-5:56 pm

2 stops38h 41m

$938

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Mon 2/2

6:00 am-12:35 pm

2 stops38h 35m

Sydney Kingsford Smith

Tue 2/10

2:00 pm-5:01 am

2 stops31h 01m

$950

BostonSydney

BOS - SYD

BOSSYD

Boston Logan Intl

Sat 1/31

6:00 am-12:35 pm

2 stops38h 35m

Sydney Kingsford Smith

Sat 2/14

2:00 pm-5:00 am

2 stops31h 00m

$969

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 2/4

12:10 pm-8:30 am

2 stops28h 20m

Sydney Kingsford Smith

Wed 2/11

10:40 am-10:27 pm

2 stops27h 47m

$1,589

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 3/19

5:18 am-6:05 am

2 stops33h 47m

Sydney Kingsford Smith

Mon 3/23

1:15 pm-11:22 pm

2 stops25h 07m

$1,659

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 2/4

2:31 pm-9:05 am

2 stops26h 34m

Sydney Kingsford Smith

Wed 2/11

12:10 pm-11:21 pm

3 stops27h 11m

$1,717

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 2/5

3:12 pm-9:05 am

2 stops25h 53m

Sydney Kingsford Smith

Thu 2/12

11:50 am-6:56 pm

2 stops23h 06m

$1,817

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 2/28

3:05 pm-9:35 am

2 stops26h 30m

Sydney Kingsford Smith

Wed 3/4

11:20 am-10:51 pm

3 stops51h 31m

$2,115

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 2/28

3:05 pm-9:35 am

2 stops26h 30m

Sydney Kingsford Smith

Wed 3/4

11:20 am-10:51 pm

3 stops51h 31m

$2,124

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Maine to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Sydney?

In general, September is the cheapest month to fly from Maine to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,220. If you are unable to visit Sydney during the month of September, then departing from Maine during the month March is also very affordable. Most momondo users find prices during this month for around $1,237.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Maine to Sydney is on a Wednesday when prices can be found for as low as $1,444. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,562.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Maine to Sydney in the morning for as low as $1,438. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,494. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,425 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Maine for as low as $1,256 on momondo.

Cheap Maine to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to Sydney

Fastest flight time	23h 40m
Direct flights	None

The fastest flight from Maine to Sydney takes 23h 40m

There are no direct flights from Maine to Sydney. There are no popular flight routes from Maine to Sydney.

Search flight deals

When did momondo last update prices for flights from Maine to Sydney Kingsford Smith Airport?
Prices for flights from Maine to Sydney Kingsford Smith Airport refresh daily.
How many operators does momondo search for flights from Maine to Sydney Kingsford Smith Airport?
There are 10 operators available for flights from Maine to Sydney Kingsford Smith Airport as of December 2025.
How old do you have to be to fly from Maine to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maine to Sydney. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search for Maine to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Maine 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.