Is it cheaper to book flights months in advance?
Not much. Booking 2–3 months ahead cost on average 22.4% more than the same flight's lowest fare, more than at 1–1.5 months (+17.2%). On 22,906 flights seen both 2–3 months and 3–4 weeks out, the early fare was higher 47.1% of the time: a coin toss.
Piratefly price data, updated 2026-10-31 · 4,928,479 fares observed 2026-06-14 → 2026-10-30 · CC BY 4.0
The numbers
- 1–1.5 months ahead: +17.2% average, 40.1% of flights at their lowest fare.
- 1.5–2 months ahead: +17.5% average, 42% of flights at their lowest fare.
- 2–3 months ahead: +22.4% average, 39.8% of flights at their lowest fare.
- 2–3 months vs 3–4 weeks: median difference -1%, average +5.4%.
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Source and method
One-way economy fares observed by Piratefly's price tracker, not booking data or surveys. Full method, all charts and CSV: When to book flights — Piratefly research. Open dataset: doi:10.5281/zenodo.23290390. Please credit "Piratefly" with a link to this page.
Check any route live: Fare Index · Piratefly API · MCP server.
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