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Cheap flights from Portland to Melbourne from $807

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Melbourne departing on 11/9. 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

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Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
15:27 - 06:45
PDX
-
MEL
22h 18m
1 stop
American Airlines Logo
09:45 - 16:38
MEL
-
PDX
23h 53m
2 stops
$1,500American Airlines
Wed, 17 Jun - Fri, 17 Jul
American Airlines Logo
15:27 - 06:45
PDX
-
MEL
22h 18m
1 stop
American Airlines Logo
09:45 - 22:39
MEL
-
PDX
29h 54m
1 stop
$1,504American Airlines
Wed, 17 Jun - Fri, 17 Jul
Multiple Airlines Logo
13:03 - 08:15
PDX
-
MEL
26h 12m
1 stop
Multiple Airlines Logo
10:55 - 20:31
MEL
-
PDX
26h 36m
1 stop
$1,508Multiple Airlines
Sun, 16 Aug - Tue, 25 Aug
United Airlines Logo
13:03 - 08:15
PDX
-
MEL
26h 12m
1 stop
United Airlines Logo
10:55 - 18:19
MEL
-
PDX
24h 24m
1 stop
$1,509United Airlines
Thu, 13 Aug - Thu, 27 Aug
Multiple Airlines Logo
13:03 - 08:15
PDX
-
MEL
26h 12m
1 stop
Multiple Airlines Logo
10:55 - 17:50
MEL
-
PDX
23h 55m
2 stops
$1,513Multiple Airlines
Sun, 16 Aug - Tue, 25 Aug
United Airlines Logo
08:40 - 08:15
PDX
-
MEL
30h 35m
2 stops
United Airlines Logo
10:55 - 12:00
MEL
-
PDX
18h 05m
1 stop
$1,515United Airlines
Thu, 13 Aug - Sat, 22 Aug
Delta Logo
10:53 - 07:50
PDX
-
MEL
27h 57m
1 stop
Delta Logo
10:00 - 16:34
MEL
-
PDX
23h 34m
1 stop
$1,519Delta
Wed, 1 Jul - Wed, 19 Aug
Delta Logo
07:20 - 07:50
PDX
-
MEL
31h 30m
2 stops
Delta Logo
10:00 - 14:45
MEL
-
PDX
21h 45m
2 stops
$1,526Delta
Wed, 1 Jul - Wed, 19 Aug
Qantas Airways Logo
06:35 - 14:10
PDX
-
AVV
38h 35m
2 stops
Qantas Airways Logo
08:50 - 22:39
AVV
-
PDX
30h 49m
2 stops
$2,613Qantas Airways
Sun, 16 Aug - Tue, 25 Aug
Qantas Airways Logo
18:50 - 14:10
PDX
-
AVV
26h 20m
2 stops
Qantas Airways Logo
10:30 - 20:36
AVV
-
PDX
27h 06m
2 stops
$2,692Qantas Airways
Fri, 4 Sep - Wed, 16 Sep

American Airlines flights from Portland to Melbourne

Our best American Airlines deals on Portland to Melbourne flight tickets
American Airlines
16 May
PDX11:48Portland
25h 57m
2 stops
MEL06:45Melbourne
1 June
MEL13:35Melbourne
25h 04m
1 stop
PDX21:39Portland
$1,479
American Airlines
16 May
PDX13:09Portland
24h 36m
1 stop
MEL06:45Melbourne
1 June
MEL13:35Melbourne
25h 04m
1 stop
PDX21:39Portland
$1,493
American Airlines
17 June
PDX15:27Portland
22h 18m
1 stop
MEL06:45Melbourne
17 July
MEL09:45Melbourne
23h 53m
2 stops
PDX16:38Portland
$1,500

United Airlines flights from Portland to Melbourne

Our best United Airlines deals on Portland to Melbourne flight tickets
United Airlines
16 May
PDX07:15Portland
32h 00m
1 stop
MEL08:15Melbourne
1 June
MEL10:55Melbourne
18h 14m
1 stop
PDX12:09Portland
$1,494
United Airlines
13 Aug
PDX11:15Portland
28h 00m
1 stop
MEL08:15Melbourne
25 Aug
MEL10:55Melbourne
18h 05m
1 stop
PDX12:00Portland
$1,509
United Airlines
13 Aug
PDX08:40Portland
30h 35m
2 stops
MEL08:15Melbourne
22 Aug
MEL10:55Melbourne
18h 05m
1 stop
PDX12:00Portland
$1,515

momondo Fare Finder

 
Customise your flight search to find flights from Portland to Melbourne 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 78,305 searches. Data last updated 14 May 2026.
Use the filters below to find and compare flights from Portland to Melbourne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 17/6

15:27-06:45

1 stop22h 18m

Melbourne

Fri 17/7

09:45-16:38

2 stops23h 53m

$1,500

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 17/6

15:27-06:45

1 stop22h 18m

Melbourne

Fri 17/7

09:45-22:39

1 stop29h 54m

$1,504

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 16/8

13:03-08:15

1 stop26h 12m

Melbourne

Tue 25/8

10:55-20:31

1 stop26h 36m

$1,508

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 13/8

13:03-08:15

1 stop26h 12m

Melbourne

Thu 27/8

10:55-18:19

1 stop24h 24m

$1,509

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 16/8

13:03-08:15

1 stop26h 12m

Melbourne

Tue 25/8

10:55-17:50

2 stops23h 55m

$1,513

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 13/8

08:40-08:15

2 stops30h 35m

Melbourne

Sat 22/8

10:55-12:00

1 stop18h 05m

$1,515

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 1/7

10:53-07:50

1 stop27h 57m

Melbourne

Wed 19/8

10:00-16:34

1 stop23h 34m

$1,519

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 1/7

07:20-07:50

2 stops31h 30m

Melbourne

Wed 19/8

10:00-14:45

2 stops21h 45m

$1,526

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 16/8

06:35-14:10

2 stops38h 35m

Melbourne Avalon

Tue 25/8

08:50-22:39

2 stops30h 49m

$2,613

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Fri 4/9

18:50-14:10

2 stops26h 20m

Melbourne Avalon

Wed 16/9

10:30-20:36

2 stops27h 06m

$2,692

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Melbourne from

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

What is the typical price of a round-trip flight between Portland and Melbourne?

What is the cheapest month to fly to Melbourne?

In general, December 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 $792. If you aren’t able to travel to Melbourne during the month of December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,044.

Cheap Portland to Melbourne flight deals and tips

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

Fastest flight time

19h 30m

Direct flights

None
The fastest flight from Portland to Melbourne takes 19h 30m
There are no direct flights from Portland to Melbourne. There are no popular flight routes from Portland to Melbourne.
Search flight deals

Frequently asked questions about flying from Portland to Melbourne

  • How far is Portland to Melbourne by plane?

    Melbourne is 13045.2 km away from Portland. A reasonable flight in good conditions will take 19h 30m.

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

    Prices for flights from Portland Airport to Melbourne are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Melbourne trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find Portland to Melbourne flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Melbourne that suits you.

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

momondo does allow users to show only those flights to Melbourne 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 Melbourne?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Melbourne.

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

If you are simply researching potential flights to Melbourne, momondo offers a useful price alert feature which will track prices for flights to Melbourne from Portland and alert you when they change.

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Find better results for your trip to Australia

Fly into one of these airports located in Melbourne

Airports listed have a maximum distance of 50.4 km from Melbourne
Melbourne Avalon Airport