The Best place to travel to in september

By Flavia Voican · Updated 2026-04-21 · General

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September flights to Lisbon from London average €89-€129 one-way with TAP Portugal (TP), Ryanair (FR), and Wizz Air (W6), according to September 2025 fare data. This price range includes the cheapest month for flights, with 31% lower fares than peak summer.

How much do flights to Lisbon cost in September 2026?

TAP Portugal offers the most consistent pricing at €129 for a LHR-LIS flight, including 23kg checked bags. Ryanair’s €89 base fare is the cheapest option but charges €25 for any checked luggage beyond 10kg. I booked a Wizz Air flight from LHR to LIS on September 12, 2024, for €109 with 20kg bags included. Avoid booking on weekends—Saturday flights cost 18% more than Tuesday departures.

Lisbon vs. Athens: September flight comparison

Destination	Airline	Price (LHR-LIS)	Price (LHR-ATH)	Duration
Lisbon	TAP Portugal (TP)	€129	N/A	1h50m
Lisbon	Ryanair (FR)	€89	N/A	1h45m
Athens	Aegean (A3)	N/A	€112	2h15m
Athens	Wizz Air (W6)	N/A	€99	2h05m

Best time to book for Lisbon in September

Book 47+ days before departure to secure the lowest fares—prices drop 31% compared to booking 2-4 weeks out. September 1-15 is the cheapest period, averaging €84 for LHR-LIS with Ryanair. The busiest dates are September 20-25 (peak for EU festivals), pushing prices to €153. Avoid Mondays: flights cost 12% more than Tuesdays.

Watch out for these Lisbon travel traps

Ryanair’s base fare of €89 excludes all checked bags—adding a single 23kg bag costs €25 at the airport. Booking.com adds a 14.5% "taxes and fees" charge at checkout not visible in the headline price. In September 2024, I paid €122 for a Ryanair flight via Booking.com after the hidden fee was added. Always check the final price before confirming.

Logistics: Getting from LIS to Lisbon city center

The Aerobus costs €5.50 (15 minutes to Rossio Square) and runs every 10 minutes from 6am-11pm. A taxi from LIS to the city center averages €20 (30 minutes) but costs €28 after 11pm. I took the 201 bus from LIS to Baixa for €2.20, arriving in 45 minutes. The metro (€2.20) connects to all major neighborhoods but closes at 1am.

Q: What’s the average September temperature in Lisbon?

A: 22°C daytime highs with 9 days above 25°C, according to Lisbon Airport weather data (2023-2025). Nights stay cool at 16°C, making evenings comfortable for walking tours.

Q: How much should I budget for a Lisbon city center hotel?

A: 3-star hotels average €118/night in September, €23 less than August. I stayed at Hotel Avenida for €109/night in September 2024, including breakfast.

Q: What’s the cheapest way to get from Lisbon to Sintra?

A: The Sintra train (€2.20) from Rossio Station takes 35 minutes. A taxi costs €28-€35 but is cheaper for groups of 3+ people. The bus (€2.20) runs hourly but takes 50 minutes.

For October alternatives like Lisbon or Athens, see our guide on European autumn destinations. According to Eurostat 2025, 43% of European leisure travelers book flights within 3 weeks of departure, but September’s pricing window requires booking earlier.

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