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Cheap Flights to Sydney

Looking for cheap flights to Sydney that actually fit your budget?

Dates
Fri, Oct 2 – Sun, Oct 4
No. of travellers & Class
1 Traveller · Economy
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Find the cheapest flights to Sydney, Australia from major US cities. Triwize compares fares across 500+ airlines for flights to Sydney NSW so you can book with confidence. Whether you need a round-trip flight ticket to Sydney Australia or a one-way flight to Sydney, we help you find the best price every time.

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Round trip flight deals

The card below shows the cheapest round-trip fares currently available. Updated every 24 hours. Click any to search available seats.

Enter your travel dates to find the best prices
Wed, 3 Nov - Fri, 5 Nov
Airline logo
9:45SEA
17h 00m
Non-stop
05:45SIN
Airline logo
9:00SIN
14h 10m
Non-stop
08:10SEA
$653Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
12:05LAX
16h 35m
Non-stop
7:40SIN
Airline logo
20:45SIN
16h 05m
Non-stop
21:50LAX
$857Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
7:00LAX
25h 35m
1 stop
12:10SIN
Airline logo
20:45SIN
16h 5m
Non-stop
21:50LAX
$855Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
08:37LAX
29h 38m
2 stops
05:15SIN
Airline logo
07:00SIN
19h 32m
1 stop
11:32LAX
$873Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
13:18ONT
25h 57m
2 stops
06:15SIN
Airline logo
8:45SIN
18h 27m
1 stop
12:12ONT
$878Economy · per person
Wed, 3 Nov - Fri, 5 Nov
Airline logo
06:00ONT
21h 35m
1 stop
18:35SIN
Airline logo
08:45SIN
26h 18m
1 stop
20:01ONT
$873Economy · per person
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Best Time to Book Flight Tickets to Sydney

When to book the most cheap Flights to Sydney?

The cheapest time to fly to Sydney from the USA is March and April, when average round-trip fares drop to around $900–$960. February and October are also excellent value months. For the best deals on flights to Sydney Australia, book 3–6 months ahead. Avoid December and January, when fares rise 30–50% due to Australian summer holidays and Christmas travel.

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When is the Most Expensive Time to Fly to Sydney?

December and January are the most expensive months to fly to Sydney NSW, driven by Australian summer, Christmas, and New Year demand. School holiday periods in June–July (Australian winter) also push fares higher. Fares in peak periods can run 30–50% above the annual average.

Everything you need to know before you book

Sydney Flight Price Guide — Month by Month

  • Low fare months
  • Mild season
  • Peak pricing periods
price-guide-img
  • January
    PriceHigh
    CrowdHigh
    Best forSydney summer — beaches, NYE buzz lingers
    Avg RT Fare$1150
  • February
    PriceLow-Med
    CrowdLow-Med
    Best forPost-holiday value, warm weather continues
    Avg RT Fare$950
  • March
    PriceLow
    CrowdLow
    Best forExcellent shoulder season — fewer tourists
    Avg RT Fare$920
  • April
    PriceLow
    CrowdLow
    Best forAutumn colours, mild temperatures, cheap flights to Sydney
    Avg RT Fare$900
  • May
    PriceLow-Med
    CrowdLow
    Best forCrisp autumn, cultural events, great value
    Avg RT Fare$940
  • June
    PriceMedium
    CrowdMedium
    Best forAustralian school holidays — fares begin rising
    Avg RT Fare$1000
  • July
    PriceHigh
    CrowdHigh
    Best forPeak school holidays — book 4 months ahead
    Avg RT Fare$1100
  • August
    PriceMedium
    CrowdMedium
    Best forLate winter in Sydney — good value returns
    Avg RT Fare$1020
  • September
    PriceLow-Med
    CrowdLow-Med
    Best forSpring arrives — wildflowers, pleasant weather
    Avg RT Fare$960
  • October
    PriceLow
    CrowdLow
    Best forWarm spring, low fares — highly recommended
    Avg RT Fare$920
  • November
    PriceMedium
    CrowdMedium
    Best forSpring racing season, fares creeping up
    Avg RT Fare$980
  • December
    PricePeak
    CrowdVery High
    Best forChristmas/NYE — most expensive month, book 6 months ahead
    Avg RT Fare$1280

Why Fly to Sydney?

Sydney city skyline

World-famous landmarks

The Sydney Opera House, Harbour Bridge, Bondi Beach, and the Blue Mountains are all within reach of Sydney Airport.

Sydney travel destination

Year-round destination

Sydney enjoys a temperate climate with warm summers (Dec–Feb) and mild winters (Jun–Aug). The cheapest flights to Sydney often fall in autumn (Mar–May) when weather is still excellent.

Melbourne city skyline Australia

Gateway to Australia

Sydney is the main US entry point to Australia, with direct onward connections to Melbourne, Brisbane, Cairns (Great Barrier Reef), and Uluru.

Multicultural food and dining

Food and culture

Sydney ranks among the world's top food cities, with outstanding seafood, multicultural dining, world-class restaurants, and vibrant coffee culture.

Traveller exploring Australia

Safe and welcoming

Australia consistently ranks among the safest countries for US travellers, with English as the official language, high-quality healthcare, and excellent tourist infrastructure.

Surfer at the beach

Adventure options

Surf Bondi, hike the Blue Mountains, dive the Great Barrier Reef (short flight from SYD), or explore the Outback — all accessible via Sydney.

Everything you need to know before you book

Quick Facts - Flights to Sydney from the USA

Everything you need to know before you book

Cheapest Month to flyApril
avg ~$900 round-trip from USA
Most Expensive MonthDecember
avg ~$1,280 round-trip from USA
How far ahead to book3–6 months
December: 6+ months
Shortest nonstop (LAX to SYD flight time)~15h 30m
Los Angeles
TBD
Sydney
Non-stop
LA to Sydney flight time (with stop)~18–21h total via Auckland or Fiji
LAX to Sydney flight duration (nonstop)~15h 30m — one of the world's longest nonstop routes
New York to Sydney~22–25h with one stop (via LAX or SFO)
Sydney Airport codeSYD — Kingsford Smith International Airport
CurrencyAustralian Dollar (AUD)
Time zoneAEST (UTC+10) / AEDT (UTC+11) in summer
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A traveller's guide

Popular Airports in Sydney — A Traveller's Guide

Sydney is primarily served by Sydney Airport, the city's main hub for domestic and international flights. Western Sydney International Airport is also set to begin passenger operations on 25 October 2026, giving travellers another option, particularly for western Sydney. Newcastle Airport can also be useful for travellers visiting areas north of Sydney or comparing regional fares.

  • Sydney Airport

    Sydney Airport

    SYD

    Hub Airlines

    Qantas, Virgin Australia, Jetstar, Air New Zealand

    Key Routes

    Sydney's main airport; extensive domestic and international connections and the most convenient option for central Sydney

  • Western Sydney International Airport

    Western Sydney International Airport

    WSI

    Hub Airlines

    Jetstar, Air New Zealand, Singapore Airlines, Vietjet Air

    Key Routes

    Sydney's new 24-hour airport at Badgerys Creek; passenger flights begin 25 October 2026, serving western Sydney and offering new domestic and international routes

  • Newcastle Airport

    Newcastle Airport

    NTL

    Hub Airlines

    Jetstar, Virgin Australia, QantasLink

    Key Routes

    Located north of Sydney; useful for travellers visiting Newcastle, Port Stephens and the Hunter Region, though considerably farther from central Sydney

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Airlines Flying to Sydney from the United States

Several major carriers operate service from the US to Sydney Kingsford Smith Airport (SYD). Below is a guide to the key airlines, their US gateways, and what makes each stand out.

✈️
United Airlines
KEY HUBS
LAXSFOIAHSYD
WHY CHOOSEStar Alliance; strong nonstop and connecting options from major US hubs

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Dates
Departure – Return

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Terms and Conditions : Fares are sourced across 500+ airlines and include all taxes, surcharges, and Triwize service fees. Displayed prices are subject to change until ticketed. Tickets are nonrefundable, nontransferable, and subject to airline restrictions; name changes are not permitted. Triwize Coins are earned on qualified bookings, hold no cash value, are non-transferable, and may be modified or discontinued at any time. See full Terms for details.