What is the cheapest airline that flies from Portland to Melbourne?

United Airlines, Air Canada, and Qantas Airways are the most popular carriers operating from Portland to Melbourne

What airlines fly to Melbourne?

United Airlines, Air Canada and Qantas Airways are the top three most popular airlines that fly to Melbourne from Portland according to our data. United Airlines is the first choice among our users, with 71% of people opting to fly with this airline when traveling to Melbourne. Keep in mind that there are 3 different airlines that fly to Melbourne 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 Melbourne?

Prices for flights from Portland Airport to Melbourne were last updated today.

How many operators does momondo search for flights from Portland Airport to Melbourne?

The number of operators available for flights from Portland Airport to Melbourne is 3 as of September 2025.

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

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 Portland Airport to Melbourne.

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

The travel and health documents required for your trip to Melbourne 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 Melbourne. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$572 Cheap Flights from Portland to Melbourne in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portland to Melbourne

Round-trip

One-way

Cheap round-trip flights

5:45 am - 8:30 amPDX-MEL

32h 45m2 stops

12:00 pm - 2:42 pmMEL-PDX

20h 42m1 stop

$975United Airlines

Find Deal

Fri, Mar 13 - Thu, Mar 26

7:51 pm - 10:00 amPDX-MEL

19h 09m1 stop

1:00 pm - 12:33 pmMEL-PDX

18h 33m1 stop

$976United Airlines

Find Deal

Sat, Jan 17 - Sat, Jan 24

7:00 pm - 3:15 pmPDX-MEL

25h 15m2 stops

6:40 am - 9:15 amMEL-PDX

20h 35m2 stops

$987Air Canada

Find Deal

Sun, Mar 1 - Wed, Mar 11

7:00 pm - 2:05 pmPDX-MEL

24h 05m2 stops

6:00 am - 9:35 amMEL-PDX

20h 35m2 stops

$1,003

Find Deal

Tue, Feb 24 - Tue, May 26

7:00 pm - 2:05 pmPDX-MEL

24h 05m2 stops

8:30 pm - 9:35 amMEL-PDX

30h 05m2 stops

$1,007

Find Deal

Tue, Feb 24 - Sun, Jun 14

5:05 pm - 8:00 amPDX-MEL

43h 55m2 stops

10:00 am - 12:13 pmMEL-PDX

19h 13m1 stop

$1,027Delta

Find Deal

Tue, Feb 24 - Sun, Jun 14

7:00 pm - 2:15 pmPDX-MEL

24h 15m2 stops

7:10 am - 9:15 amMEL-PDX

21h 05m2 stops

$1,033Air Canada

Find Deal

Mon, Feb 2 - Tue, Feb 10

3:43 pm - 3:35 pmPDX-MEL

28h 52m2 stops

9:45 am - 10:30 pmMEL-PDX

29h 45m1 stop

$1,112Qantas Airways

Find Deal

Tue, Feb 24 - Tue, May 26

7:40 am - 3:35 pmPDX-MEL

36h 55m2 stops

12:00 pm - 8:50 pmMEL-PDX

27h 50m1 stop

$1,136Qantas Airways

Find Deal

Wed, Nov 5 - Wed, Nov 19

1:45 pm - 8:00 amPDX-MEL

23h 15m2 stops

10:10 am - 8:47 pmMEL-PDX

29h 37m2 stops

$1,267Delta

Find Deal

Mon, Dec 29 - Wed, Jan 21

United Airlines flights from Portland to Melbourne

Our best United Airlines deals on Portland to Melbourne flight tickets

United Airlines

Mar 13

PDX5:45 amPortland

32h 45m

2 stops

MEL8:30 amMelbourne

Mar 26

MEL12:00 pmMelbourne

20h 42m

1 stop

PDX2:42 pmPortland

$975

Find similar

United Airlines

Jan 17

PDX7:51 pmPortland

19h 09m

1 stop

MEL10:00 amMelbourne

Jan 24

MEL1:00 pmMelbourne

18h 33m

1 stop

PDX12:33 pmPortland

$976

Find similar

United Airlines

Jan 17

PDX1:24 pmPortland

25h 36m

2 stops

MEL10:00 amMelbourne

Jan 24

MEL1:00 pmMelbourne

24h 48m

1 stop

PDX6:48 pmPortland

$980

Find similar

Delta flights from Portland to Melbourne

Our best Delta deals on Portland to Melbourne flight tickets

Delta

Feb 24

PDX5:05 pmPortland

43h 55m

2 stops

MEL8:00 amMelbourne

Jun 14

MEL10:00 amMelbourne

19h 13m

1 stop

PDX12:13 pmPortland

$1,027

Find similar

Delta

Dec 29

PDX1:45 pmPortland

23h 15m

2 stops

MEL8:00 amMelbourne

Jan 21

MEL10:10 amMelbourne

29h 37m

2 stops

PDX8:47 pmPortland

$1,267

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/13

5:45 am-8:30 am

2 stops32h 45m

Melbourne

Thu 3/26

12:00 pm-2:42 pm

1 stop20h 42m

$975

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 1/17

7:51 pm-10:00 am

1 stop19h 09m

Melbourne

Sat 1/24

1:00 pm-12:33 pm

1 stop18h 33m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 3/1

7:00 pm-3:15 pm

2 stops25h 15m

Melbourne

Wed 3/11

6:40 am-9:15 am

2 stops20h 35m

$987

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:00 pm-2:05 pm

2 stops24h 05m

Melbourne

Tue 5/26

6:00 am-9:35 am

2 stops20h 35m

$1,003

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:00 pm-2:05 pm

2 stops24h 05m

Melbourne

Sun 6/14

8:30 pm-9:35 am

2 stops30h 05m

$1,007

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

5:05 pm-8:00 am

2 stops43h 55m

Melbourne

Sun 6/14

10:00 am-12:13 pm

1 stop19h 13m

$1,027

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 2/2

7:00 pm-2:15 pm

2 stops24h 15m

Melbourne

Tue 2/10

7:10 am-9:15 am

2 stops21h 05m

$1,033

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

3:43 pm-3:35 pm

2 stops28h 52m

Melbourne

Tue 5/26

9:45 am-10:30 pm

1 stop29h 45m

$1,112

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 11/5

7:40 am-3:35 pm

2 stops36h 55m

Melbourne

Wed 11/19

12:00 pm-8:50 pm

1 stop27h 50m

$1,136

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 12/29

1:45 pm-8:00 am

2 stops23h 15m

Melbourne

Wed 1/21

10:10 am-8:47 pm

2 stops29h 37m

$1,267

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 Portland to Melbourne

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 month to fly to Melbourne?

In general, November is the cheapest month to fly from Portland to Melbourne. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,008. The month of April is another great option to travel to Melbourne, with average flight prices from Portland averaging around $1,204.

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

On average, the least expensive day to fly to Melbourne from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,291. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Melbourne on Saturday is $1,534.

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

Our most recent data shows that the best time of day to fly to Melbourne is in the evening. Flights from Portland to Melbourne during this time can be as low as $1,342. Flights to Melbourne are more costly in the morning, with an average ticket price of $1,943. Departure times in the morning 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 Melbourne?

You are more likely to see cheaper flights to Melbourne from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Melbourne for around $1,365 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from Portland for as low as $1,115 on momondo.

Cheap Portland to Melbourne flight deals and tips

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

Direct flights	None

There are no direct flights from Portland to Melbourne. There are no popular flight routes from Portland to Melbourne.

Search flight deals

How far is Portland to Melbourne by plane?
The straight-line distance from Portland to Melbourne is 8105.9 mi. Typically, this will take 19h 09m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to Melbourne?
Prices for flights from Portland Airport to Melbourne were last updated today.
How many operators does momondo search for flights from Portland Airport to Melbourne?
The number of operators available for flights from Portland Airport to Melbourne is 3 as of September 2025.
How old do you have to be to fly from Portland Airport to Melbourne?
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 Portland Airport to Melbourne.
What documentation or ID do you need to fly to Melbourne?
The travel and health documents required for your trip to Melbourne 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 Melbourne. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Melbourne

Compare and see reviews for airlines that fly from Portland to Melbourne with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $928	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom $957	Free Cancellation	Rating 7.4 8,934 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,237	Free Cancellation	Rating 7.5 905 reviews	Search Qantas Airways flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Melbourne from Portland.

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

Yes. All flights to Melbourne from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Portland and Melbourne 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 Portland to Melbourne right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Melbourne 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.