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Cheap flights from Washington to Sydney

One-way from $739, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Sun, Oct 25Any priceMon, Oct 26Any priceTue, Oct 27Any priceWed, Oct 28$739Thu, Oct 29$809Fri, Oct 30$797Sat, Oct 31$750Sun, Nov 1Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$739
United Airlines, flight UA 1385Found yesterday, 1 adult
Check live price
2:30pmWashingtonWed, Oct 28
Travel time 21h 33m, 1 stopBWISYD
3:03amSydneyFri, Oct 30
$739
United Airlines, flight UA 230Found yesterday, 1 adult
Check live price
8:00amWashingtonSun, Nov 15
Travel time 21h 25m, 1 stopBWISYD
9:25pmSydneyMon, Nov 16
$750
United Airlines, flight UA 590Found yesterday, 1 adult
Check live price
5:31pmWashingtonSat, Oct 31
Travel time 22h 32m, 2 stopsBWISYD
7:03amSydneyMon, Nov 2
$795
Alaska Airlines, flight AS 005Found 5 days ago, 1 adult
Check live price
9:30amWashingtonThu, Dec 31
Travel time 28h 1m, 2 stopsDCASYD
5:31amSydneySat, Jan 2
$797
United Airlines, flight UA 297Found yesterday, 1 adult
Check live price
12:34pmWashingtonFri, Oct 30
Travel time 22h 40m, 2 stopsBWISYD
2:14amSydneySun, Nov 1

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in AustraliaTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in Sydney, booked ahead at a fixed price.
    See options
  • Things to do in SydneyPopular tours from $92.41 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for Australia from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu12345678910111213141516171819202122232425–26–27–28$73929$80930$79731$750

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12–13–14–15$73916–17–18–19–20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12–13–14–15–16–17–18–19–20–21–22–23–2425262728293031
$739 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Oct 28, $739.

Lowest fares by month

In the fares found this week, December has the lowest: from $795 one-way, against $910 in January 2027. Pick a month to see its cheapest date.

  1. Oct$838
  2. Nov$824
  3. Dec$795
  4. Jan$910
  5. Febno fares yet
  6. Marno fares yet
  7. Aprno fares yet
  8. Mayno fares yet
  9. Junno fares yet
  10. Julno fares yet
  11. Augno fares yet
  12. Sepno fares yet
$0$500$1,000OctNov$795DecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$838Wed, Oct 282 stops
November$824Sun, Nov 152 stops
December$795Thu, Dec 312 stops
January 2027$910Sun, Jan 31 stop
February 2027—
March 2027—
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in Sydney. Average daily high and low and monthly precipitation.

Oct2026NovDecJan2027FebMarAprMayJunJulAugSep
Lowest fare$838$824$795$910––––––––
High °C23°24°26°27°27°26°24°21°18°18°19°22°
Low °C15°17°18°20°20°18°15°12°10°9°10°12°
Precipitation mm68917391132118114101142807563

Source: Sydney on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

What is the cheapest month to fly from Washington to Sydney?

In the fares found this week, December has the lowest: from $795 one-way, against $910 in January 2027.

What is the weather in Sydney in December?

In December, the cheapest month to fly, the average daily high in Sydney is 26 °C and the low 18 °C.

Are there direct flights from Washington to Sydney?

None of the fares found recently are nonstop. The cheapest options have at least one stop.

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