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 37h 24m. 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.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Adelaide flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Adelaide flight deals on Cheapflights vs. eDreams 90-95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Adelaide flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Adelaide flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$788+ 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 October 26, 2026.

Sat 12/57:18 am -

2 stops36h 12m

Sun 3/215:20 pm -

2 stops43h 58m

Deal found 10/23

$1,434

Sun 12/610:24 pm -

2 stops45h 01m

Sun 12/1312:05 pm -

2 stops26h 05m

Deal found 10/22

$1,568

Fri 12/42:42 pm -

2 stops31h 33m

Fri 12/116:00 am -

2 stops27h 44m

Deal found 10/21

$1,591

Fri 12/46:00 am -

2 stops38h 25m

Fri 12/116:25 am -

3 stops27h 19m

Deal found 10/21

$1,633

Tue 11/107:48 am -

3 stops35h 42m

Sat 11/141:15 pm -

3 stops37h 51m

Deal found 10/25

$1,638

Mon 11/212:50 pm -

2 stops30h 35m

Mon 2/112:05 pm -

2 stops24h 16m

Deal found 10/26

$1,670

Mon 11/27:09 pm -

3 stops45h 31m

Mon 2/12:30 pm -

3 stops47h 55m

Deal found 10/26

$1,753

Tue 11/108:01 pm -

2 stops47h 24m

Sat 11/145:20 pm -

2 stops38h 18m

Deal found 10/25

$1,946

Sat 12/58:15 am -

2 stops35h 10m

Wed 12/167:50 am -

2 stops28h 45m

Deal found 10/22

$1,997

Tue 12/12:24 pm -

2 stops29h 01m

Thu 12/316:05 am -

2 stops28h 22m

Deal found 10/25

$2,027

Sat 12/512:40 pm -

2 stops30h 45m

Thu 12/177:50 am -

2 stops28h 52m

Deal found 10/24

$2,045

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 October 26, 2026.

Mon 2/811:41 am -

2 stops37h 24m

Fri 2/127:10 pm -

2 stops43h 08m

Deal found 10/21

$1,561

Fri 12/46:00 am -

2 stops38h 25m

Fri 12/116:25 am -

3 stops27h 19m

Deal found 10/21

$1,633

Mon 1/186:00 pm -

2 stops28h 15m

Mon 3/1512:05 pm -

2 stops33h 04m

Deal found 10/26

$1,717

Mon 1/189:21 am -

1 stop32h 39m

Mon 3/156:10 am -

2 stops31h 03m

Deal found 10/26

$2,008

Sat 12/58:10 pm -

2 stops45h 10m

Sun 3/2110:00 pm -

1 stop33h 25m

Deal found 10/23

$2,300

Fri 12/42:42 pm -

2 stops31h 33m

Fri 12/116:00 am -

2 stops27h 44m

Deal found 10/21

$1,591

Sat 12/58:15 am -

2 stops35h 10m

Wed 12/167:50 am -

2 stops28h 45m

Deal found 10/23

$1,998

Tue 12/812:40 pm -

2 stops30h 45m

Tue 12/157:50 am -

2 stops28h 45m

Deal found 10/23

$2,203

Last-minute flights from Dulles Intl to Adelaide
Discover last-minute flight deals from Dulles Intl to Adelaide. Data last updated October 26, 2026 and is based on user searches.

Mon 11/212:50 pm -

2 stops30h 35m

Mon 2/112:05 pm -

2 stops24h 16m

Deal found 10/26

$1,670

Mon 11/27:09 pm -

3 stops45h 31m

Mon 2/12:30 pm -

3 stops47h 55m

Deal found 10/26

$1,753

Mon 11/28:05 pm -

1 stop28h 20m

Mon 2/110:00 pm -

1 stop33h 25m

Deal found 10/26

$2,421

Wed 11/44:39 pm -

2 stops34h 46m

Wed 11/186:30 pm -

2 stops39h 07m

Deal found 10/23

$7,405

Tue 11/107:48 am -

3 stops35h 42m

Sat 11/141:15 pm -

3 stops37h 51m

Deal found 10/25

$1,638

Tue 11/108:01 pm -

2 stops47h 24m

Sat 11/145:20 pm -

2 stops38h 18m

Deal found 10/25

$1,946

Tue 11/108:05 pm -

1 stop28h 20m

Sat 11/1410:00 pm -

1 stop33h 25m

Deal found 10/25

$2,505

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 October 26, 2026.

Wed 11/186:00 am -

2 stops37h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$788

Thu 11/261:09 pm -

3 stops55h 56m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$866

Wed 11/188:05 pm -

1 stop28h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$1,520

Thu 11/268:05 pm -

1 stop28h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$1,847

Thu 12/1010:35 am -

2 stops33h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/26

$2,001

Find flight deals from Dulles Intl to Adelaide

Most accurate provider	eDreams 2 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,426 (oojo)
One-way from	$788 (Cathay Pacific)

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Adelaide flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Adelaide flights.

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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

Wed 11/18

6:00 am-10:30 am

2 stops37h 00m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$788

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Thu 11/26

1:09 pm-12:35 pm

3 stops55h 56m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$866

Quickest round-trip

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Wed 11/18

8:05 pm-3:55 pm

1 stop28h 20m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$1,520

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Mon 2/8

11:41 am-4:35 pm

2 stops37h 24m

Adelaide

Fri 2/12

7:10 pm-10:48 pm

2 stops43h 08m

$1,561

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Fri 12/4

2:42 pm-1:45 pm

2 stops31h 33m

Adelaide

Fri 12/11

6:00 am-6:14 pm

2 stops27h 44m

$1,591

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Fri 12/4

6:00 am-11:55 am

2 stops38h 25m

Adelaide

Fri 12/11

6:25 am-6:14 pm

3 stops27h 19m

$1,633

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Mon 1/18

6:00 pm-1:45 pm

2 stops28h 15m

Adelaide

Mon 3/15

12:05 pm-6:39 am

2 stops33h 04m

$1,717

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Sat 12/5

8:15 am-10:55 am

2 stops35h 10m

Adelaide

Wed 12/16

7:50 am-9:05 pm

2 stops28h 45m

$1,998

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Thu 12/10

10:35 am-11:15 am

2 stops33h 10m

Adelaide

Wed 12/31

12:00 am-9:30 am

Nonstop0h 00m

$2,001

Washington, D.C.Adelaide

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

IADADL

Washington, D.C. Dulles Intl

Mon 1/18

9:21 am-9:30 am

1 stop32h 39m

Adelaide

Mon 3/15

6:10 am-10:43 pm

2 stops31h 03m

$2,008

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 12 resultsSorted by cheapest first

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Adelaide flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Adelaide flight deals on Cheapflights vs. eDreams 90-95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Adelaide flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Adelaide flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

1,118 reviews

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Qantas Airways

7.5

Good

1,118 reviews

Qantas Airways

7.5

Good

1,118 reviews

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

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 37h 24m. 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.

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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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$788+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.

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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 October 26, 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 October 26, 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 October 26, 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 October 26, 2026.

Last-minute flights from Dulles Intl to AdelaideDiscover last-minute flight deals from Dulles Intl to Adelaide. Data last updated October 26, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Adelaide. Data last updated October 26, 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 October 26, 2026.

Search for one-way flight options from Dulles Intl to Adelaide. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.

Find flight deals from Dulles Intl to Adelaide

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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 October 26, 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 October 26, 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 October 26, 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 October 26, 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 October 26, 2026.

Last-minute flights from Dulles Intl to Adelaide
Discover last-minute flight deals from Dulles Intl to Adelaide. Data last updated October 26, 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 October 26, 2026.