How long does a flight from Washington, D.C. to Adelaide take?

There are no direct flights for this route listed on KAYAK. The shortest multi-flight duration is 22h 57m .

What is the cheapest flight from Washington, D.C. to Adelaide?

In the last 5 days, the lowest price for a flight from Washington, D.C. to Adelaide was $694 for a one-way ticket and $1,362 for a round-trip.

Do I need a passport to fly between Washington, D.C. and Adelaide?

Yes, you’ll need a passport to travel to Adelaide from Washington, D.C..

Which airports will I be using when flying from Washington, D.C. to Adelaide?

There are 2 airports in Washington, D.C. (Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl.) and only 1 airport in Adelaide (Adelaide). The cheapest flights are generally found on the Baltimore/Washington Airport to Adelaide flight route.

Which aircraft models fly most regularly from Washington, D.C. to Adelaide?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Washington, D.C. to Adelaide?

oneworld is the only airline alliance operating flights between Washington, D.C. and Adelaide.

How does KAYAK find such low prices on flights from Washington, D.C. to Adelaide?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Adelaide.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Adelaide?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Adelaide from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington, D.C. to Adelaide?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Adelaide with an airline and back to Washington, D.C. with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Adelaide?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Adelaide from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$694 CHEAP FLIGHTS from Washington, D.C. to Adelaide (WAS - ADL)

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Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,362

Qatar Airways

Sun 9/13Wed 9/23

IAD - ADL • 1 stop

Cheapest one-way

$694

Multiple Airlines

Mon 9/14

IAD - ADL • 3 stops

Top airlines

Qatar Airways

Cheapest • from $1,362 (round-trip)

United Airlines

Best reviews • 7.4 score

Airline reviews

Nonstop flights

Not available

There are currently no direct flights between Washington, D.C. and Adelaide. You'll need at least 1 connection.

Insights

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Flight Deals

Cheap Flights from Washington, D.C. to Adelaide (WAS-ADL)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington, D.C. to Adelaide

Sun, Sep 13 - Wed, Sep 23

9:00 pm - 3:00 pm-

28h 30m

6:05 am - 3:40 pm-

47h 05m

$1,362Qatar Airways

Sun, Sep 13 - Wed, Sep 23

9:00 pm - 3:00 pm-

28h 30m

6:05 am - 3:40 pm-

47h 05m

$1,374Qatar Airways

Fri, Sep 11 - Wed, Sep 23

9:00 pm - 10:05 am-

47h 35m

10:00 pm - 3:40 pm-

31h 10m

$1,376Qatar Airways

Mon, Sep 14 - Mon, Sep 21

9:00 pm - 3:00 pm-

28h 30m

11:50 am - 8:45 am-

34h 25m

$1,387Qatar Airways

Sun, Sep 13 - Sun, Sep 20

9:00 pm - 3:00 pm-

28h 30m

2:20 pm - 8:45 am-

55h 55m

$1,397Qatar Airways

Mon, Sep 14 - Mon, Sep 21

9:00 pm - 3:00 pm-

28h 30m

11:50 am - 8:45 am-

34h 25m

$1,410Qatar Airways

Wed, Sep 2 - Wed, Sep 9

9:00 pm - 9:10 pm-

34h 40m

10:00 pm - 3:40 pm-

31h 10m

$1,420Qatar Airways

Fri, Sep 11 - Fri, Sep 18

9:00 pm - 7:00 am-

44h 30m

10:00 pm - 3:40 pm-

31h 10m

$1,422Qatar Airways

Sun, Sep 13 - Wed, Sep 23

7:11 pm - 4:25 pm-

31h 44m

10:10 am - 9:29 pm-

24h 49m

$1,474Qantas Airways

Thu, Sep 10 - Tue, Sep 22

7:31 pm - 4:25 pm-

31h 24m

6:00 am - 9:29 pm-

28h 59m

$1,535Qantas Airways

Booking Insights

KAYAK's insights & trends for Washington, D.C. to Adelaide flights

Get data-powered insights and trends into flights from Washington, D.C. to Adelaide to help you find the cheapest flights, the best time to fly and much more.

Airlines

Which airlines provide the cheapest flights from Washington, D.C. to Adelaide?

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to Adelaide were found on Qatar Airways ($1,362) and Qantas Airways ($1,474).

Find deals

Cheapest flight	$694

Flight from Washington Dulles Airport to Adelaide

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Adelaide based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Washington, D.C. to Adelaide?
In the last 5 days, the lowest price for a flight from Washington, D.C. to Adelaide was $694 for a one-way ticket and $1,362 for a round-trip.
Do I need a passport to fly between Washington, D.C. and Adelaide?
Yes, you’ll need a passport to travel to Adelaide from Washington, D.C..
Which airports will I be using when flying from Washington, D.C. to Adelaide?
There are 2 airports in Washington, D.C. (Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl.) and only 1 airport in Adelaide (Adelaide). The cheapest flights are generally found on the Baltimore/Washington Airport to Adelaide flight route.
Which aircraft models fly most regularly from Washington, D.C. to Adelaide?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Washington, D.C. to Adelaide?
oneworld is the only airline alliance operating flights between Washington, D.C. and Adelaide.
How does KAYAK find such low prices on flights from Washington, D.C. to Adelaide?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Adelaide.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Adelaide?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Adelaide from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington, D.C. to Adelaide?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Adelaide with an airline and back to Washington, D.C. with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Adelaide?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Adelaide from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Washington, D.C. to Adelaide

Need help choosing which airline to fly with from Washington, D.C. to Adelaide? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.

7.4

United AirlinesOverall score based on 10059 reviews

7.7Boarding

6.6Food

7.1Entertainment

8.1Crew

7.3Comfort

Airline reviews

My flight was delayed so bad i missed u it so i just said never mind

2.0 MediocreDanika, Jul 2026

Everything you need to know for your flight from Washington, D.C. to Adelaide

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Adelaide (ADL)

WAS - ADL

$694 Find Cheap Flights from Washington, D.C. to Adelaide - Compare and Save

Everything you should know

Cheap Flights from Washington, D.C. to Adelaide (WAS-ADL)

Recent round-trip flight deals from Washington, D.C. to Adelaide

Recent one-way flight deals from Washington, D.C. to Adelaide

Recent last minute flight deals from Washington, D.C. to Adelaide

KAYAK's insights & trends for Washington, D.C. to Adelaide flights

Which airlines provide the cheapest flights from Washington, D.C. to Adelaide?

How long does a flight from Washington, D.C. to Adelaide take?

Good to know

Cheapest flight

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

FAQs for booking flights from Washington, D.C. to Adelaide

Reviews of the top airline flying from Washington, D.C. to Adelaide

Everything you need to know for your flight from Washington, D.C. to Adelaide

Information on your arrival and departure airports

Cabin class types available on flights from Washington, D.C. to Adelaide

Complete your trip to Adelaide with a hotel stay or car rental

Find direct flights to and from Washington, D.C. and Adelaide

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Flights from domestic origins to Adelaide

Choose which airport to fly into in Adelaide