Flight price alerts: Sydney → London

Sample round trips on this route start around EUR 829; November 2026 is often the cheapest month in our next-3-month window. FlexTrip Alerts is a free email service — set flexible travel dates and a max price, and we notify you when a round trip fits. We check fares about four times per day; we do not sell tickets.

Set a free tracker with flexible dates and your max price. We email you only when a round trip fits.

Sample fares from EUR 829. Cheapest month in our next-3-month sample: November 2026.

Set an alert and we email you when a round trip drops under your limit.

Set a price alert

Round trips on this route

Cheapest-seen sample fares (next 3 months) — confirm the final price on the booking site when you click through.

Last updated .

  • Round trip · 20 nights
    Wed 11 Nov · 15:10
    Return Tue 01 Dec · 20:20

    EUR 829

    See deal
  • Round trip · 15 nights
    Mon 09 Nov · 15:10
    Return Tue 24 Nov · 22:00

    EUR 896

    See deal
  • Round trip · 12 nights
    Tue 26 Jan · 10:30
    Return Sun 07 Feb · 08:45

    EUR 1174

    See deal
  • Round trip · 16 nights
    Mon 30 Nov · 12:00
    Return Wed 16 Dec · 06:15

    EUR 1225

    See deal
  • Round trip · 14 nights
    Sat 09 Jan · 21:10
    Return Sat 23 Jan · 08:40

    EUR 1492

    See deal
  • Round trip · 4 nights
    Fri 18 Dec · 22:30
    Return Tue 22 Dec · 08:45

    EUR 1749

    See deal
  • Round trip · Same day
    Thu 26 Nov · 06:00
    Return Thu 26 Nov · 23:55

    EUR 1773

    See deal

Frequently asked questions

How do I get email alerts when Sydney to London flights drop in price?
Create a free FlexTrip Alerts tracker for Sydney Kingsford Smith Airport (SYD) to London (All Airports) (LON). Choose your flexible departure window, stay length, and maximum price — we email you when a round trip fits.
Does FlexTrip Alerts book flights from Sydney to London?
No — we do not sell tickets. FlexTrip Alerts watches prices and emails you when a fare matches your plan. You book on the airline or travel site you prefer when you receive an alert.
Can I set flexible travel dates for Sydney to London alerts?
Yes. Pick a departure window (not one fixed day) and how many nights you can stay. We match round trips that fit your window, stay length, and max price — then email you when one qualifies.
How often does FlexTrip Alerts check Sydney to London fares?
We scan aggregated fares on a schedule — about four times per day (every ~6 hours, UTC). You can also trigger an on-demand check from your dashboard, with a short cooldown between manual refreshes.
What is the cheapest month to fly from Sydney to London?
Based on recent fare samples on this page, November 2026 is currently the cheapest month to fly from Sydney to London, with round trips from about EUR 829. Prices change — set an alert to catch the next drop.

More routes from Sydney

View all 5 routes from Sydney

Set alerts for other destinations from Sydney Kingsford Smith Airport (SYD).

Flying to London?

See all 37 departure cities with price alerts into London (All Airports) (LON).

View routes to London