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Lisbon skyline — flights from Toulouse from €18, cheapest in September

Toulouse to Lisbon: buy now or wait?

Typical one-way fare Toulouse→Lisbon: €18 (median of 47 daily lowest fares we tracked); under €15 is a good price; cheapest month: September; book 42–55 days ahead.

Your call FareScore 40/100
€18 Today's best fare

Cheaper than 40% of what we have seen

26 Nov Malta Air Direct
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All fares Toulouse → Lisbon

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What the history says

Prices recorded 451
Typical price €18
Lowest we saw €16

Based on 451 prices we recorded on this exact route, compared against the same departure month.

Best booking window

42–55 days — is when this route has been cheapest to book: €20 typical, on 53 observations. That is about €10 less than booking in the last two weeks.

Cheapest months to fly to Lisbon

September €24 57 observations
November €27 254 observations
January €31 10 observations

Booking tips from our fare data

How far in advance should you book a flight?
Book 1.5–2 months before departure. Tracking the same flights at every lead time (105,470 flights on 20,996 routes, 2026-06-14 to 2026-11-08), that window had the smallest average premium over each flight's lowest fare: +16.4%, against +48.8% in the last 3 days.
What is the cheapest month to fly?
November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.3% against the route's own median, while January 2027 was the dearest at +25.1%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-08.
Are flights getting more expensive?
Not right now. The Piratefly monthly Fare Index stands at 98.1 in 2026-11 (month in progress), against 100 in 2026-08: comparable flights are 1.9% cheaper than then, measured on the same routes month to month.

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