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FLIGHT // TIMINGTendencies, not guarantees

Flight Intel — Best Time to Book, Route by Route

Route-based booking timing: when to start tracking, the typical booking window, peak-season risk, flexible-date advantage, alternative airports and weekday patterns.

Before you read any route guide

There is no universal best day to buy flights. Fares are dynamic and route-specific. Track prices, set alerts, compare total cost including bags and seats, and book when the fare crosses a target you set in advance.

Typical window · 6–10 weeks before departure
JFKLIS
New York → Lisbon · 6h 45m – 7h 30m nonstop
Track from 3–4 months outTue / Wed departures; Sat returns often cheaper than Sun.
Typical window · 8–14 weeks before departure
LHRHND
London → Tokyo · 12h 30m – 14h nonstop (longer on westbound routings avoiding Russian airspace)
Track from 5–6 months outMidweek departures; avoid Friday outbound.
Typical window · 8–12 weeks before departure
LAXSIN
Los Angeles → Singapore · 17h+ nonstop (ultra-long-haul); 19–24h with one stop
Track from 4–6 months outTue–Thu.
Typical window · 4–8 weeks before departure
JFKLHR
New York → London · 6h 45m – 7h 30m nonstop
Track from 3 months outTue / Wed / Sat departures.
Typical window · 6–10 weeks before departure
AMSDXB
Amsterdam → Dubai · 6h 30m – 7h nonstop
Track from 3 months outTue–Thu.
Typical window · 5–9 weeks before departure
JFKCDG
New York → Paris · 7h – 7h 45m nonstop
Track from 3–4 months outTue / Wed departures; Sat returns.
Typical window · 8–12 weeks before departure
LAXHND
Los Angeles → Tokyo · 11h – 12h nonstop westbound; 9h 30m – 10h 30m eastbound
Track from 4–6 months outTue–Thu.
Typical window · 5–9 weeks before departure
ORDLHR
Chicago → London · 7h 45m – 8h 30m nonstop
Track from 3 months outTue / Wed / Sat.
Typical window · 6–10 weeks before departure
MIAGRU
Miami → São Paulo · 8h – 8h 45m nonstop
Track from 3–4 months outTue–Thu.
Typical window · 6–10 weeks before departure
LHRDXB
London → Dubai · 6h 45m – 7h 15m nonstop
Track from 3 months outTue–Thu.
Typical window · 6–12 weeks before departure
JFKFCO
New York → Rome · 8h 30m – 9h nonstop eastbound; ~10h westbound
Track from 4 months outTue / Wed departures; Saturday returns.
Typical window · 10–16 weeks before departure
LAXSYD
Los Angeles → Sydney · 14h 30m – 15h nonstop westbound; ~13h 30m eastbound
Track from 5–6 months outTue–Thu.
Typical window · 8–14 weeks before departure
LHRBKK
London → Bangkok · 11h 30m – 12h nonstop; 14–18h one-stop
Track from 4–5 months outTue–Thu.
Typical window · 8–12 weeks before departure
SFOHND
San Francisco → Tokyo · 11h – 11h 30m nonstop westbound; ~9h 30m – 10h eastbound
Track from 4–6 months outTue–Thu.
Typical window · 8–14 weeks before departure
JFKHND
New York → Tokyo · 14h nonstop westbound; ~13h eastbound
Track from 5–6 months outTue–Thu.
Typical window · 8–14 weeks before departure
SINLHR
Singapore → London · 13h 30m – 14h nonstop
Track from 4–5 months outTue–Thu.
Typical window · 5–9 weeks before departure
YYZLHR
Toronto → London · 7h – 7h 30m nonstop eastbound; ~8h westbound
Track from 3 months outTue / Wed / Sat.
Typical window · 6–10 weeks before departure
FRAJFK
Frankfurt → New York · 8h 30m – 9h westbound; ~7h 30m – 8h eastbound
Track from 3–4 months outTue / Wed departures.
Typical window · 6–12 weeks before departure
JFKBCN
New York → Barcelona · 7h 45m – 8h 15m nonstop eastbound; ~9h westbound
Track from 4 months outTue / Wed departures; Saturday returns.
Typical window · 6–12 weeks before departure
LAXLHR
Los Angeles → London · 10h 30m – 11h nonstop eastbound; ~11h 30m westbound
Track from 4 months outTue / Wed / Saturday departures.
Method

How to use flight search and price alerts

  • Google Flights

    Best date grid and price graph. Set an alert for your dates and a ±3-day variant. Tool notes →

  • Skyscanner

    Better low-cost coverage; "whole month" and "everywhere" for flexible plans. Tool notes →

  • Kayak / Momondo

    Second opinion across OTAs and mixed one-ways. Treat forecasts as hints. Tool notes →

  • Hopper

    Mobile watch-and-alert with paid add-ons like price freeze; read what each covers. Tool notes →

  • Airline fare calendars

    Once a search tool shows the winner, open the airline's own low-fare calendar and book direct where possible.

  • Alerts

    Two or three per trip. Decide a target price first. The calm method →