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Cheap flights from Washington, D.C. to Perth from $916

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 24/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Perth

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:30 - 14:40
DCA
-
PER
41h 10m
2 stops
Multiple Airlines Logo
01:10 - 21:59
PER
-
DCA
32h 49m
2 stops
$2,314Multiple Airlines
Sun, 20 Sep - Fri, 2 Oct
United Airlines Logo
15:03 - 12:30
BWI
-
PER
33h 27m
3 stops
United Airlines Logo
23:55 - 16:31
PER
-
BWI
28h 36m
2 stops
$2,408United Airlines
Sun, 9 Aug - Mon, 17 Aug
United Airlines Logo
06:38 - 14:40
BWI
-
PER
44h 02m
2 stops
United Airlines Logo
23:55 - 16:31
PER
-
BWI
28h 36m
2 stops
$2,417United Airlines
Sun, 9 Aug - Mon, 17 Aug
Cathay Pacific Logo
17:22 - 06:50
DCA
-
PER
49h 28m
2 stops
Cathay Pacific Logo
08:20 - 23:58
PER
-
DCA
51h 38m
2 stops
$2,652Cathay Pacific
Sun, 9 Aug - Mon, 17 Aug
Cathay Pacific Logo
14:53 - 22:40
IAD
-
PER
43h 47m
2 stops
Cathay Pacific Logo
08:20 - 14:03
PER
-
IAD
65h 43m
2 stops
$2,724Cathay Pacific
Sun, 9 Aug - Mon, 17 Aug
Air New Zealand Logo
09:45 - 19:10
IAD
-
PER
45h 25m
2 stops
Air New Zealand Logo
19:50 - 22:36
PER
-
IAD
38h 46m
2 stops
$2,756Air New Zealand
Tue, 23 Jun - Tue, 15 Sep
Singapore Airlines Logo
17:45 - 14:40
BWI
-
PER
32h 55m
2 stops
Singapore Airlines Logo
13:45 - 16:35
PER
-
BWI
38h 50m
2 stops
$2,757Singapore Airlines
Sun, 20 Sep - Sat, 3 Oct
American Airlines Logo
19:11 - 13:35
BWI
-
PER
30h 24m
2 stops
American Airlines Logo
23:55 - 19:25
PER
-
BWI
31h 30m
2 stops
$2,808American Airlines
Thu, 18 Jun - Mon, 20 Jul
Air New Zealand Logo
14:53 - 22:15
IAD
-
PER
43h 22m
2 stops
Air New Zealand Logo
16:25 - 21:27
PER
-
IAD
41h 02m
2 stops
$2,843Air New Zealand
Thu, 30 Jul - Mon, 31 Aug
American Airlines Logo
17:16 - 11:15
DCA
-
PER
29h 59m
2 stops
American Airlines Logo
23:45 - 20:29
PER
-
DCA
32h 44m
2 stops
$3,185American Airlines
Thu, 18 Jun - Mon, 20 Jul

American Airlines flights from Washington, D.C. to Perth

Our best American Airlines deals on Washington, D.C. to Perth flight tickets
American Airlines
18 June
BWI19:11Baltimore/Washington
30h 24m
2 stops
PER13:35Perth
20 July
PER23:55Perth
31h 30m
2 stops
BWI19:25Baltimore/Washington
$2,808
American Airlines
23 June
IAD19:25Washington, D.C. Dulles Intl
30h 10m
2 stops
PER13:35Perth
16 Sept
PER10:35Perth
30h 25m
2 stops
IAD05:00Washington, D.C. Dulles Intl
$2,937
American Airlines
18 June
DCA17:16Washington, D.C. Reagan-National
29h 59m
2 stops
PER11:15Perth
20 July
PER23:45Perth
32h 44m
2 stops
DCA20:29Washington, D.C. Reagan-National
$3,188

United Airlines flights from Washington, D.C. to Perth

Our best United Airlines deals on Washington, D.C. to Perth flight tickets
United Airlines
9 Aug
BWI15:03Baltimore/Washington
33h 27m
3 stops
PER12:30Perth
17 Aug
PER23:55Perth
28h 36m
2 stops
BWI16:31Baltimore/Washington
$2,408
United Airlines
9 Aug
BWI06:38Baltimore/Washington
44h 02m
2 stops
PER14:40Perth
17 Aug
PER23:55Perth
28h 36m
2 stops
BWI16:31Baltimore/Washington
$2,417
United Airlines
3 June
BWI18:59Baltimore/Washington
29h 31m
2 stops
PER12:30Perth
10 June
PER15:30Perth
51h 40m
2 stops
BWI07:10Baltimore/Washington
$2,497

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 7 May 2026.
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

Cheapest return flight

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Sun 20/9

09:30-14:40

2 stops41h 10m

Perth

Fri 2/10

01:10-21:59

2 stops32h 49m

$2,314

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Sun 9/8

15:03-12:30

3 stops33h 27m

Perth

Mon 17/8

23:55-16:31

2 stops28h 36m

$2,408

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Sun 9/8

06:38-14:40

2 stops44h 02m

Perth

Mon 17/8

23:55-16:31

2 stops28h 36m

$2,417

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Sun 9/8

17:22-06:50

2 stops49h 28m

Perth

Mon 17/8

08:20-23:58

2 stops51h 38m

$2,652

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Sun 9/8

14:53-22:40

2 stops43h 47m

Perth

Mon 17/8

08:20-14:03

2 stops65h 43m

$2,724

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Tue 23/6

09:45-19:10

2 stops45h 25m

Perth

Tue 15/9

19:50-22:36

2 stops38h 46m

$2,756

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Sun 20/9

17:45-14:40

2 stops32h 55m

Perth

Sat 3/10

13:45-16:35

2 stops38h 50m

$2,757
Fastest return journey

BaltimorePerth

BWI - PER

BWIPER

Baltimore/Washington

Thu 18/6

19:11-13:35

2 stops30h 24m

Perth

Mon 20/7

23:55-19:25

2 stops31h 30m

$2,808

Washington, D.C.Perth

IAD - PER

IADPER

Washington, D.C. Dulles Intl

Thu 30/7

14:53-22:15

2 stops43h 22m

Perth

Mon 31/8

16:25-21:27

2 stops41h 02m

$2,843

Washington, D.C.Perth

DCA - PER

DCAPER

Washington, D.C. Reagan-National

Thu 18/6

17:16-11:15

2 stops29h 59m

Perth

Mon 20/7

23:45-20:29

2 stops32h 44m

$3,185

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 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 August is, on average, the cheapest month to fly to Perth from Washington, D.C., with most prices found around $1,651. If you’re not able to fly to Perth in August, then November is your next best option. Flight prices from Washington, D.C. to Perth during November average around $1,724.

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

Fastest flight time

29h 09m

Direct flights

None
The fastest flight from Washington, D.C. to Perth takes 29h 09m
There are no direct flights from Washington, D.C. to Perth. There are no popular flight routes from Washington, D.C. to Perth.
Search flight deals

Frequently asked questions about flying 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 29h 09m.

  • 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.

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