What airlines fly to Australia?

United Airlines, Qantas Airways and Delta are the top three most popular airlines that fly to Australia from Portland, Maine according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 11 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Australia?

Prices for flights from Portland Airport to Australia refresh daily.

How old do you have to be to fly from Portland Airport to Australia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Australia.

What documentation or ID do you need to fly to Australia?

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,651 Cheap Flights from Portland to Australia in 2025/26

1 adult

0 bags

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Find the cheapest flights from Portland, Maine to Australia

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:08 am - 8:30 amPWM-SYD

34h 22m2 stops

10:40 am - 10:23 pmSYD-PWM

27h 43m2 stops

$1,651Delta

Find Deal

Wed, Dec 3 - Wed, Dec 10

6:00 am - 8:30 amPWM-SYD

34h 30m2 stops

10:40 am - 11:54 pmSYD-PWM

29h 14m2 stops

$1,657Delta

Find Deal

Thu, Nov 13 - Mon, Nov 17

6:00 am - 6:20 amPWM-SYD

32h 20m3 stops

12:10 pm - 6:54 pmSYD-PWM

22h 44m2 stops

$1,715United Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

6:00 am - 7:00 amPWM-SYD

33h 00m3 stops

12:10 pm - 6:54 pmSYD-PWM

22h 44m2 stops

$1,815United Airlines

Find Deal

Thu, Dec 4 - Thu, Dec 11

6:00 am - 9:35 amPWM-SYD

35h 35m3 stops

11:20 am - 11:09 pmSYD-PWM

27h 49m3 stops

$3,812Air Canada

Find Deal

Wed, Dec 3 - Wed, Dec 10

Delta flights from Portland, Maine to Australia

Our best Delta deals on Portland, Maine to Australia flight tickets

Delta

Dec 3

PWM6:08 amPortland

34h 22m

2 stops

SYD8:30 amSydney Kingsford Smith

Dec 10

SYD10:40 amSydney Kingsford Smith

27h 43m

2 stops

PWM10:23 pmPortland

$1,651

Find similar

Delta

Nov 13

PWM6:00 amPortland

34h 30m

2 stops

SYD8:30 amSydney Kingsford Smith

Nov 17

SYD10:40 amSydney Kingsford Smith

29h 14m

2 stops

PWM11:54 pmPortland

$1,657

Find similar

United Airlines flights from Portland, Maine to Australia

Our best United Airlines deals on Portland, Maine to Australia flight tickets

United Airlines

Dec 3

PWM6:00 amPortland

32h 20m

3 stops

SYD6:20 amSydney Kingsford Smith

Dec 10

SYD12:10 pmSydney Kingsford Smith

22h 44m

2 stops

PWM6:54 pmPortland

$1,715

Find similar

United Airlines

Dec 4

PWM6:00 amPortland

33h 00m

3 stops

SYD7:00 amSydney Kingsford Smith

Dec 11

SYD12:10 pmSydney Kingsford Smith

22h 44m

2 stops

PWM6:54 pmPortland

$1,815

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 12/3

6:08 am-8:30 am

2 stops34h 22m

Sydney Kingsford Smith

Wed 12/10

10:40 am-10:23 pm

2 stops27h 43m

$1,651

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 11/13

6:00 am-8:30 am

2 stops34h 30m

Sydney Kingsford Smith

Mon 11/17

10:40 am-11:54 pm

2 stops29h 14m

$1,657

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 12/3

6:00 am-6:20 am

3 stops32h 20m

Sydney Kingsford Smith

Wed 12/10

12:10 pm-6:54 pm

2 stops22h 44m

$1,715

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 12/4

6:00 am-7:00 am

3 stops33h 00m

Sydney Kingsford Smith

Thu 12/11

12:10 pm-6:54 pm

2 stops22h 44m

$1,815

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 12/3

6:00 am-9:35 am

3 stops35h 35m

Sydney Kingsford Smith

Wed 12/10

11:20 am-11:09 pm

3 stops27h 49m

$3,812

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to Australia

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

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

The cheapest day to depart from Portland, Maine to Australia is on a Wednesday. Travelers who choose to depart for Australia on a Wednesday will often find tickets for as low as $1,446. On the other hand, Monday is the most expensive day to depart from Portland, Maine because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,111.

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

Flying to Australia from Portland, Maine at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,492 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,496 on average. Flights to Australia from Portland, Maine in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Portland, Maine to Australia flight deals and tips

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

Direct flights	None

There are no direct flights from Portland, Maine to Australia. There are no popular flight routes from Portland, Maine to Australia.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Australia?
Prices for flights from Portland Airport to Australia refresh daily.
How old do you have to be to fly from Portland Airport to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Australia?

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

Can I find flights from Portland to Australia with flexible booking policies on momondo?

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

How can momondo help me find flights from Portland to Australia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Australia from Portland.

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

Price alerts on flights to Australia from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.