Cheap flights from Washington, D.C. to Perth from $1,127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Perth departing on 20/1. 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.
Multiple Airlines Logo
14:35 - 17:50IAD-PER
38h 15m2 stops
Multiple Airlines Logo
11:30 - 09:05PER-IAD
34h 35m2 stops
$1,944Multiple Airlines
Find Deal
Tue, 10 Feb - Tue, 24 Feb
Cathay Pacific Logo
10:46 - 22:55DCA-PER
47h 09m2 stops
Cathay Pacific Logo
00:25 - 18:54PER-DCA
31h 29m2 stops
$2,309Cathay Pacific
Find Deal
Tue, 2 Dec - Mon, 8 Dec
Air Canada Logo
15:30 - 17:00IAD-PER
37h 30m3 stops
Air Canada Logo
17:15 - 16:17PER-IAD
35h 02m2 stops
$2,347Air Canada
Find Deal
Sat, 18 Apr - Wed, 6 May
Multiple Airlines Logo
17:23 - 22:55IAD-PER
40h 32m2 stops
Multiple Airlines Logo
00:25 - 21:18PER-IAD
33h 53m2 stops
$2,464Multiple Airlines
Find Deal
Mon, 24 Nov - Mon, 8 Dec
American Airlines Logo
17:03 - 12:25IAD-PER
30h 22m2 stops
American Airlines Logo
22:40 - 21:17PER-IAD
35h 37m2 stops
$2,538American Airlines
Find Deal
Tue, 25 Nov - Fri, 16 Jan
Air New Zealand Logo
08:42 - 22:20BWI-PER
48h 38m2 stops
Air New Zealand Logo
18:50 - 20:53PER-BWI
39h 03m2 stops
$2,655Air New Zealand
Find Deal
Tue, 27 Jan - Fri, 13 Feb
Qantas Airways Logo
17:23 - 12:05IAD-PER
29h 42m2 stops
Qantas Airways Logo
22:40 - 16:14PER-IAD
30h 34m2 stops
$2,666Qantas Airways
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Qantas Airways Logo
17:26 - 12:05IAD-PER
29h 39m2 stops
Qantas Airways Logo
05:00 - 22:51PER-IAD
30h 51m2 stops
$2,757Qantas Airways
Find Deal
Thu, 29 Jan - Fri, 20 Feb
Air New Zealand Logo
15:25 - 13:10IAD-PER
32h 45m2 stops
Air New Zealand Logo
22:45 - 21:19PER-IAD
35h 34m3 stops
$3,202Air New Zealand
Find Deal
Tue, 25 Nov - Fri, 16 Jan
Air Canada Logo
20:40 - 14:30DCA-PER
52h 50m3 stops
Air Canada Logo
22:55 - 08:55PER-DCA
47h 00m3 stops
$7,883Air Canada
Find Deal
Sat, 20 Dec - Fri, 26 Dec

Cathay Pacific flights from Washington, D.C. to Perth

Our best Cathay Pacific deals on Washington, D.C. to Perth flight tickets
Cathay Pacific
2 Dec
DCA10:46Washington, D.C. Reagan-National
47h 09m
2 stops
PER22:55Perth
8 Dec
PER00:25Perth
31h 29m
2 stops
DCA18:54Washington, D.C. Reagan-National
Cathay Pacific
2 Dec
DCA11:59Washington, D.C. Reagan-National
45h 56m
2 stops
PER22:55Perth
9 Dec
PER08:30Perth
38h 32m
2 stops
DCA10:02Washington, D.C. Reagan-National
Cathay Pacific
18 Apr
IAD17:26Washington, D.C. Dulles Intl
41h 14m
2 stops
PER22:40Perth
6 May
PER09:15Perth
66h 52m
2 stops
IAD16:07Washington, D.C. Dulles Intl

Air Canada flights from Washington, D.C. to Perth

Our best Air Canada deals on Washington, D.C. to Perth flight tickets
Air Canada
18 Apr
IAD15:30Washington, D.C. Dulles Intl
37h 30m
3 stops
PER17:00Perth
6 May
PER17:15Perth
35h 02m
2 stops
IAD16:17Washington, D.C. Dulles Intl
Air Canada
13 Nov
IAD22:11Washington, D.C. Dulles Intl
57h 09m
3 stops
PER20:20Perth
17 Nov
PER22:55Perth
35h 25m
3 stops
IAD21:20Washington, D.C. Dulles Intl
Air Canada
13 Nov
IAD17:15Washington, D.C. Dulles Intl
62h 05m
3 stops
PER20:20Perth
17 Nov
PER22:55Perth
35h 25m
3 stops
IAD21:20Washington, D.C. Dulles Intl

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Perth 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 6 November 2025.
Use the filters below to find and compare flights from Washington, D.C. to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 10/2

14:35-17:50

2 stops38h 15m

Perth

Tue 24/2

11:30-09:05

2 stops34h 35m

$1,944

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Tue 2/12

10:46-22:55

2 stops47h 09m

Perth

Mon 8/12

00:25-18:54

2 stops31h 29m

$2,309

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sat 18/4

15:30-17:00

3 stops37h 30m

Perth

Wed 6/5

17:15-16:17

2 stops35h 02m

$2,347

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Mon 24/11

17:23-22:55

2 stops40h 32m

Perth

Mon 8/12

00:25-21:18

2 stops33h 53m

$2,464

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 25/11

17:03-12:25

2 stops30h 22m

Perth

Fri 16/1

22:40-21:17

2 stops35h 37m

$2,538

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 27/1

08:42-22:20

2 stops48h 38m

Perth

Fri 13/2

18:50-20:53

2 stops39h 03m

$2,655

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 2/12

17:23-12:05

2 stops29h 42m

Perth

Tue 9/12

22:40-16:14

2 stops30h 34m

$2,666

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 29/1

17:26-12:05

2 stops29h 39m

Perth

Fri 20/2

05:00-22:51

2 stops30h 51m

$2,757

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 25/11

15:25-13:10

2 stops32h 45m

Perth

Fri 16/1

22:45-21:19

3 stops35h 34m

$3,202

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Sat 20/12

20:40-14:30

3 stops52h 50m

Perth

Fri 26/12

22:55-08:55

3 stops47h 00m

$7,883

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Perth from

How to get the cheapest flight ticket from Washington, D.C. to Perth

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 cheapest month to fly to Perth?

The month of February is, on average, the cheapest month to fly to Perth from Washington, D.C., with most prices found around $1,700. If you’re not able to fly to Perth in February, then August is your next best option. Flight prices from Washington, D.C. to Perth during August average around $1,867.

Can stopping save me money on Washington, D.C. to Perth flights?

You could potentially save up to 35% on your flight if you consider stops on a Washington, D.C. to Perth flight.

When to book flights from Washington, D.C. to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Perth according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to Perth (WAS to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Perth

Direct flights

None
There are no direct flights from Washington, D.C. to Perth. There are no popular flight routes from Washington, D.C. to Perth.
  • How far is Washington, D.C. to Perth by plane?

    There are 18603.3 km between Washington, D.C. and Perth. By plane, this route typically takes 26h 50m.

  • When did momondo last update prices for flights from Washington, D.C. to Perth Airport?

    Prices for flights from Washington, D.C. to Perth Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Perth 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 Washington, D.C. to Perth Airport.

  • What documentation or ID do you need to fly to Perth Airport?

    The travel and health documents required for your trip to Perth Airport 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 licence, and a passport valid for six-months after you plan to arrive at Perth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Fremantle
Mandurah
Scarborough
Rottnest Island

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Perth?

Finding the right flight to Perth from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Perth quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Perth with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Perth on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Perth?

momondo provides multiple filters to help you find the best flight to Perth from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to Perth right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Perth flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Sat 6/12
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