How long is the flight from Washington, D.C. Dulles Intl Airport to Adelaide?

Departing from Washington, D.C. Dulles Intl Airport to Adelaide will take you 28h 39m. The distance between Washington, D.C. Dulles Intl Airport and Adelaide is about 10437 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Adelaide round-trip?

Flying on Qantas Airways is currently your cheapest option to Adelaide, with prices starting at $1,167.

In terms of precipitation, rainfall in Adelaide ranges from 0.4 - 2.4 inches per month. July is typically the wettest month, when rainfall can reach 2.4 in. January is typically the driest time to visit Adelaide when rainfall is around 0.4 in.

If weather is an important factor for your trip to Adelaide, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

What is the cheapest time of day to fly from IAD to ADL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Adelaide as you normally would.

What airport do you fly into for flights to Adelaide from Washington, D.C. Dulles Intl?

Located just 4.1 mi from the city center, Adelaide is the airport most travelers will use when flying to Adelaide from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Adelaide (ADL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

Can I find deals for flights from Dulles Intl to Adelaide that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Adelaide?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Adelaide.

Can I find deals for business class flights from Dulles Intl to Adelaide?

Yes. Cheapflights offers flight deals from Dulles Intl to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,170+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Adelaide

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Cheap flight deals from Dulles Intl to Adelaide

Cheapest

Best

Last-minute

One-way

Cheapest flights from Dulles Intl to Adelaide
Explore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Tue 11/175:56 pm -

2 stops46h 44m

Thu 12/1012:05 pm -

2 stops28h 46m

Deal found 9/7

$1,623

Sat 10/246:15 am -

2 stops38h 10m

Sat 10/315:20 pm -

2 stops40h 54m

Deal found 9/9

$1,737

Sat 10/2410:19 pm -

3 stops53h 21m

Sat 10/312:30 pm -

3 stops45h 10m

Deal found 9/10

$1,756

Sun 12/1310:10 pm -

2 stops45h 15m

Thu 1/76:05 am -

2 stops25h 38m

Deal found 9/8

$1,958

Mon 12/149:32 am -

2 stops33h 53m

Mon 1/47:10 pm -

2 stops43h 03m

Deal found 9/8

$1,960

Mon 9/144:56 pm -

2 stops28h 39m

Mon 9/287:50 am -

2 stops26h 04m

Deal found 9/7

$1,994

Mon 12/2110:54 pm -

2 stops44h 31m

Mon 1/47:10 pm -

2 stops39h 00m

Deal found 9/7

$2,020

Sun 10/114:15 pm -

2 stops29h 25m

Sun 10/186:10 am -

2 stops27h 24m

Deal found 9/10

$2,045

Tue 11/176:00 am -

3 stops44h 55m

Thu 12/1011:45 am -

3 stops45h 17m

Deal found 9/7

$2,092

Mon 9/148:29 am -

2 stops39h 56m

Mon 9/288:00 pm -

3 stops37h 55m

Deal found 9/7

$2,167

Best flights from Dulles Intl to Adelaide
Discover carefully curated flight deals from Dulles Intl to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Sat 10/246:15 am -

2 stops38h 10m

Sat 10/315:20 pm -

2 stops40h 54m

Deal found 9/9

$1,737

Sun 10/114:15 pm -

2 stops29h 25m

Sun 10/186:10 am -

2 stops27h 24m

Deal found 9/10

$2,045

Mon 9/144:56 pm -

2 stops28h 39m

Mon 9/2810:10 am -

2 stops23h 44m

Deal found 9/7

$2,047

Tue 11/176:00 am -

3 stops44h 55m

Thu 12/1011:45 am -

3 stops45h 17m

Deal found 9/7

$2,092

Sat 10/249:00 pm -

1 stop28h 25m

Sat 10/3110:00 pm -

1 stop33h 25m

Deal found 9/9

$2,478

Mon 9/146:13 am -

3 stops44h 42m

Mon 9/2812:40 pm -

3 stops47h 42m

Deal found 9/7

$2,281

Wed 11/49:55 am -

3 stops36h 30m

Wed 11/186:00 am -

3 stops29h 40m

Deal found 9/9

$8,353

Sat 10/2412:30 pm -

2 stops38h 20m

Sat 10/3110:15 am -

3 stops46h 48m

Deal found 9/9

$4,248

Wed 11/44:39 pm -

2 stops26h 51m

Wed 11/188:55 am -

2 stops30h 05m

Deal found 9/8

$7,905

Last-minute flights from Dulles Intl to Adelaide
Discover last-minute flight deals from Dulles Intl to Adelaide. Data last updated September 11, 2026 and is based on user searches.

Mon 9/144:56 pm -

2 stops28h 39m

Mon 9/287:50 am -

2 stops26h 04m

Deal found 9/7

$1,994

Mon 9/148:29 am -

2 stops39h 56m

Mon 9/288:00 pm -

3 stops37h 55m

Deal found 9/7

$2,167

Mon 9/149:00 pm -

2 stops34h 30m

Mon 9/2810:00 pm -

1 stop31h 10m

Deal found 9/7

$2,171

Thu 9/179:00 pm -

1 stop28h 30m

Thu 10/19:50 pm -

2 stops48h 25m

Deal found 9/10

$2,204

Sun 10/114:15 pm -

2 stops29h 25m

Sun 10/186:10 am -

2 stops27h 24m

Deal found 9/10

$2,045

Sun 10/119:00 pm -

2 stops32h 45m

Sun 10/1810:00 pm -

1 stop32h 10m

Deal found 9/10

$2,205

Sat 10/246:15 am -

2 stops38h 10m

Sat 10/315:20 pm -

2 stops40h 54m

Deal found 9/9

$1,737

Sat 10/2410:19 pm -

3 stops53h 21m

Sat 10/312:30 pm -

3 stops45h 10m

Deal found 9/10

$1,756

One-way flights from Dulles Intl to Adelaide
Search for one-way flight options from Dulles Intl to Adelaide. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.

Sun 10/112:47 pm -

2 stops30h 53m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$1,170

Sun 10/116:00 am -

3 stops41h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$1,315

Sun 10/119:00 pm -

1 stop28h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$1,394

Sun 10/116:00 am -

2 stops39h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$1,395

Sun 10/49:00 pm -

1 stop28h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$1,406

Sun 10/114:00 pm -

3 stops31h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$2,374

Sun 10/48:28 am -

3 stops38h 57m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$2,578

Sun 10/114:00 pm -

2 stops31h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$3,066

Find flight deals from Dulles Intl to Adelaide

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,623 (Expedia)
One-way from	$1,170 (United)

Provider with most accurate pricing for Washington, D.C. (WAS)-Adelaide flight deals.

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From Washington, D.C. Dulles Intl to Adelaide

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One-way flight from Washington, D.C. Dulles Intl to Adelaide

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sun 10/11

2:47 pm-12:10 pm

2 stops30h 53m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$1,170

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sun 10/11

6:00 am-1:40 pm

3 stops41h 10m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$1,315

Quickest round-trip

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sun 10/11

9:00 pm-4:00 pm

1 stop28h 30m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$1,394

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sun 10/11

6:00 am-11:55 am

2 stops39h 25m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$1,395

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sat 10/24

6:15 am-10:55 am

2 stops38h 10m

Adelaide

Sat 10/31

5:20 pm-7:44 pm

2 stops40h 54m

$1,737

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sun 10/11

4:15 pm-12:10 pm

2 stops29h 25m

Adelaide

Sun 10/18

6:10 am-7:04 pm

2 stops27h 24m

$2,045

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Mon 9/14

4:56 pm-11:05 am

2 stops28h 39m

Adelaide

Mon 9/28

10:10 am-8:24 pm

2 stops23h 44m

$2,047

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Tue 11/17

6:00 am-6:25 pm

3 stops44h 55m

Adelaide

Thu 12/10

11:45 am-5:32 pm

3 stops45h 17m

$2,092

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Mon 9/14

6:13 am-4:25 pm

3 stops44h 42m

Adelaide

Mon 9/28

12:40 pm-10:52 pm

3 stops47h 42m

$2,281

Washington, D.C.Adelaide

IAD Washington, D.C. Dulles Intl - ADL Adelaide

IADADL

Washington, D.C. Dulles Intl

Sun 10/11

4:00 pm-1:55 pm

3 stops31h 25m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$2,374

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 resultsSorted by cheapest first

Best time to book a flight from Dulles Intl to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Dulles Intl with our price prediction graph.

IAD-ADL

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Adelaide

Peruse reviews from past customers who have flown with Qantas Airways from Washington, D.C. Dulles Intl Airport to Adelaide to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qantas Airways

7.5

Good

1,092 reviews

Reviews

1 / 20

4.0

Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Qantas Airways

7.5

Good

1,092 reviews

Qantas Airways

7.5

Good

1,092 reviews

Reviews

1 / 20

4.0

Okay

Robyn,Aug 2026

LAX - SYD

Related info for your journey

What airport do you fly into for flights to Adelaide from Washington, D.C. Dulles Intl?
Located just 4.1 mi from the city center, Adelaide is the airport most travelers will use when flying to Adelaide from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Adelaide (ADL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.
How long is the flight from Washington, D.C. Dulles Intl Airport to Adelaide?
Departing from Washington, D.C. Dulles Intl Airport to Adelaide will take you 28h 39m. The distance between Washington, D.C. Dulles Intl Airport and Adelaide is about 10437 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Adelaide round-trip?
Flying on Qantas Airways is currently your cheapest option to Adelaide, with prices starting at $1,167.
Can I find deals for flights from Dulles Intl to Adelaide that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Adelaide?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Adelaide.
Can I find deals for business class flights from Dulles Intl to Adelaide?
Yes. Cheapflights offers flight deals from Dulles Intl to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Dulles Intl to Adelaide

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,167	Average$1,223	FlexibilityNo cancel fee	On-time74%

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$1,170+ Cheap flights from Dulles Intl (IAD) to Adelaide (ADL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Adelaide with Cheapflights

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Cheap flight deals from Dulles Intl to Adelaide

Cheapest flights from Dulles Intl to AdelaideExplore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Explore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Best flights from Dulles Intl to AdelaideDiscover carefully curated flight deals from Dulles Intl to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Discover carefully curated flight deals from Dulles Intl to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Last-minute flights from Dulles Intl to AdelaideDiscover last-minute flight deals from Dulles Intl to Adelaide. Data last updated September 11, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Adelaide. Data last updated September 11, 2026 and is based on user searches.

One-way flights from Dulles Intl to AdelaideSearch for one-way flight options from Dulles Intl to Adelaide. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.

Search for one-way flight options from Dulles Intl to Adelaide. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Adelaide that are best for you.

Best time to book a flight from Dulles Intl to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Dulles Intl with our price prediction graph.

Reviews of airlines servicing Adelaide

Peruse reviews from past customers who have flown with Qantas Airways from Washington, D.C. Dulles Intl Airport to Adelaide to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Adelaide from Washington, D.C. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Adelaide?

What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Adelaide round-trip?

Can I find deals for flights from Dulles Intl to Adelaide that include hotel bookings?

How can I find direct flights from Dulles Intl to Adelaide?

Can I find deals for business class flights from Dulles Intl to Adelaide?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Adelaide

Explore flights to Adelaide departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.

Alternative routes for Dulles Intl to Adelaide

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Adelaide by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Adelaide by cabin class

Find flights from Dulles Intl to Adelaide, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Adelaide flights

Browse other Dulles Intl and Adelaide flight options. Last updated on September 11, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.

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Top airline flying from Dulles Intl to Adelaide

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Cheapest flights from Dulles Intl to Adelaide
Explore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Best flights from Dulles Intl to Adelaide
Discover carefully curated flight deals from Dulles Intl to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Last-minute flights from Dulles Intl to Adelaide
Discover last-minute flight deals from Dulles Intl to Adelaide. Data last updated September 11, 2026 and is based on user searches.

One-way flights from Dulles Intl to Adelaide
Search for one-way flight options from Dulles Intl to Adelaide. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.