Cheap flights from Washington, D.C. to Perth from $932

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 1/11. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Washington, D.C. to Perth

Cheap return flights

 Logo
22:05 - 05:50IAD-PER
43h 45m2 stops
 Logo
14:50 - 16:10PER-IAD
37h 20m2 stops
$1,863
Find Deal
Mon, 15 Sep - Mon, 22 Sep
 Logo
18:58 - 05:25DCA-PER
45h 27m2 stops
 Logo
01:10 - 21:59PER-DCA
33h 49m2 stops
$1,987
Find Deal
Tue, 4 Nov - Mon, 17 Nov
Cathay Pacific Logo
17:27 - 06:55IAD-PER
48h 28m2 stops
Cathay Pacific Logo
00:15 - 22:33PER-IAD
35h 18m2 stops
$2,210Cathay Pacific
Find Deal
Tue, 4 Nov - Mon, 17 Nov
Cathay Pacific Logo
17:30 - 22:40DCA-PER
41h 10m2 stops
Cathay Pacific Logo
00:10 - 19:58PER-DCA
31h 48m2 stops
$2,210Cathay Pacific
Find Deal
Mon, 15 Sep - Sun, 21 Sep
Qantas Airways Logo
15:24 - 23:50BWI-PER
43h 26m2 stops
Qantas Airways Logo
17:45 - 18:10PER-BWI
37h 25m2 stops
$2,402Qantas Airways
Find Deal
Tue, 9 Dec - Wed, 17 Dec
Malaysia Airlines Logo
11:00 - 14:50IAD-PER
39h 50m2 stops
Malaysia Airlines Logo
02:10 - 15:40PER-IAD
49h 30m2 stops
$2,431Malaysia Airlines
Find Deal
Wed, 1 Oct - Tue, 7 Oct
Qantas Airways Logo
15:24 - 17:20BWI-PER
36h 56m2 stops
Qantas Airways Logo
17:45 - 14:06PER-BWI
33h 21m2 stops
$2,534Qantas Airways
Find Deal
Mon, 8 Dec - Wed, 17 Dec
Singapore Airlines Logo
19:28 - 23:55BWI-PER
40h 27m2 stops
Singapore Airlines Logo
06:25 - 07:13PER-BWI
36h 48m2 stops
$2,707Singapore Airlines
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Singapore Airlines Logo
09:59 - 14:45DCA-PER
39h 46m2 stops
Singapore Airlines Logo
13:50 - 20:00PER-DCA
43h 10m2 stops
$2,775Singapore Airlines
Find Deal
Thu, 13 Nov - Mon, 17 Nov
Malaysia Airlines Logo
21:00 - 01:10IAD-PER
40h 10m2 stops
Malaysia Airlines Logo
02:10 - 15:40PER-IAD
49h 30m2 stops
$3,051Malaysia Airlines
Find Deal
Mon, 15 Sep - Sun, 21 Sep

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

Our best Cathay Pacific deals on Washington, D.C. to Perth flight tickets
Cathay Pacific
4 Nov
IAD17:27Washington, D.C. Dulles Intl
48h 28m
2 stops
PER06:55Perth
17 Nov
PER00:15Perth
35h 18m
2 stops
IAD22:33Washington, D.C. Dulles Intl
Cathay Pacific
7 Oct
DCA09:59Washington, D.C. Reagan-National
48h 41m
2 stops
PER22:40Perth
16 Oct
PER00:10Perth
32h 49m
2 stops
DCA20:59Washington, D.C. Reagan-National
Cathay Pacific
16 Dec
DCA09:40Washington, D.C. Reagan-National
32h 15m
2 stops
PER06:55Perth
3 Jan
PER00:15Perth
29h 09m
2 stops
DCA16:24Washington, D.C. Reagan-National

Qantas Airways flights from Washington, D.C. to Perth

Our best Qantas Airways deals on Washington, D.C. to Perth flight tickets
Qantas Airways
9 Dec
BWI15:24Baltimore/Washington
43h 26m
2 stops
PER23:50Perth
17 Dec
PER17:45Perth
37h 25m
2 stops
BWI18:10Baltimore/Washington
Qantas Airways
8 Dec
BWI15:24Baltimore/Washington
36h 56m
2 stops
PER17:20Perth
17 Dec
PER17:45Perth
33h 21m
2 stops
BWI14:06Baltimore/Washington
Qantas Airways
9 Dec
BWI15:24Baltimore/Washington
40h 51m
2 stops
PER21:15Perth
15 Dec
PER22:55Perth
36h 31m
2 stops
BWI22:26Baltimore/Washington

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 18 August 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

Mon 15/9

22:05-05:50

2 stops43h 45m

Perth

Mon 22/9

14:50-16:10

2 stops37h 20m

$1,863

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Tue 4/11

18:58-05:25

2 stops45h 27m

Perth

Mon 17/11

01:10-21:59

2 stops33h 49m

$1,987

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 4/11

17:27-06:55

2 stops48h 28m

Perth

Mon 17/11

00:15-22:33

2 stops35h 18m

$2,210

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Mon 15/9

17:30-22:40

2 stops41h 10m

Perth

Sun 21/9

00:10-19:58

2 stops31h 48m

$2,210

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Tue 9/12

15:24-23:50

2 stops43h 26m

Perth

Wed 17/12

17:45-18:10

2 stops37h 25m

$2,402

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Wed 1/10

11:00-14:50

2 stops39h 50m

Perth

Tue 7/10

02:10-15:40

2 stops49h 30m

$2,431

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Mon 8/12

15:24-17:20

2 stops36h 56m

Perth

Wed 17/12

17:45-14:06

2 stops33h 21m

$2,534

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Wed 1/10

19:28-23:55

2 stops40h 27m

Perth

Wed 8/10

06:25-07:13

2 stops36h 48m

$2,707

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Thu 13/11

09:59-14:45

2 stops39h 46m

Perth

Mon 17/11

13:50-20:00

2 stops43h 10m

$2,775

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Mon 15/9

21:00-01:10

2 stops40h 10m

Perth

Sun 21/9

02:10-15:40

2 stops49h 30m

$3,051

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Washington, D.C. and Perth?

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 $1,695. 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 $1,861.

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

Best price found

$932

Fastest flight time

26h 55m

Direct flights

None

Airports in Perth

1 airport
The best one-way flight to Perth from Washington, D.C. in the past 72 hours is $932. The best return flight deal from Washington, D.C. to Perth found on momondo in the last 72 hours is $1,863.
The fastest flight from Washington, D.C. to Perth takes 26h 55m
There are no direct flights from Washington, D.C. to Perth. Popular non-direct routes for this connection are Baltimore/Washington Airport - Perth Airport, Washington, D.C. Dulles Intl Airport - Perth Airport and Washington, D.C. Reagan-National Airport - Perth Airport.
There is 1 airport near Perth: Perth (PER)
  • 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 55m.

  • 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
Mandurah
Fremantle
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.

An easier way to manage your Perth trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 23/8
Sat 30/8

Find better results for your trip to Australia