Cheap Flights from Adelaide to Washington D.C. from $1,078

Frequently Asked Questions

• What are the cheapest flights from Adelaide to Washington D.C. (ADL-WAS)?

  Based on Trip.com data, Qatar Airways offers one-way fares as low as $1,078 on Cheapest nonstop routes (e.g. ADL to IAD on Wed, Sep 30), while Qatar Airways offers Cheapest nonstop round-trips from $2,162 departing on Thu, Aug 13 and returning on Sun, Aug 16.

• Which airlines offer flights from Adelaide to Washington D.C.?

  At the moment, several airlines serve connecting flights from Adelaide to Washington D.C., including: United Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Adelaide to Washington D.C.?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Adelaide to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Adelaide to Washington D.C.?

  To find best deals on flights from Adelaide to Washington D.C., you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Sep 30, with one-way flights priced at just $1,078.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Qatar Airways.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Washington D.C. travel is around December.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Adelaide (ADL) to Washington D.C. (WAS) the cheapest?

  The cheapest months to fly from Adelaide to Washington D.C. is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Adelaide to Washington D.C. on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Adelaide to Washington D.C. on August 27, 2026 with Qatar Airways, with prices starting at $2,243.

• Which airports can I fly to for Washington D.C. from Adelaide?

  You can land at any one of the following hubs in Washington D.C., with Adelaide Airport to Dulles International Airport (ADL-IAD) is by far the most common option on this route: Dulles International Airport (IAD) Ronald Reagan Washington National Airport (DCA).

• Is there any time difference between Adelaide and Washington D.C.?

  The time difference between Washington D.C. and Adelaide is 14h.

• How do I change or cancel my ticket from Adelaide to Washington D.C.?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Adelaide to Washington D.C.?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Adelaide to Washington D.C. is $1,317. Fares vary by travel date, airline and availability.

• How do I book flights from Adelaide to Washington D.C. on Trip.com?

  Enter Adelaide and Washington D.C., choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.