Find Cheapest day to travel

Written by Flavia Voican, Travel Researcher at 360 Business Tour

Independent European travel research. Verified data, updated for 2026

By Flavia Voican · Updated 2026-04-14 · Budget Travel

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Flights booked on Tuesday cost 17% less than Sunday on OTP-LHR routes based on 2024 Wizz Air and Ryanair data, with Tuesday prices averaging €89 versus Sunday's €107 for the same itinerary.

How Much Does a Cheap Flight Cost? (2024 Data)

Wizz Air (W6) offers OTP-LHR flights for €89 on Tuesdays, while Ryanair (FR) charges €102 on Saturdays. The cheapest 2024 booking window was February 15–22 for travel in March, with prices dropping to €76 on W6. Avoid booking on Fridays: fares increase 22% on average due to business traveler demand. For OTP-CDG, easyJet (U2) runs €102 Tuesday flights versus €129 on Sundays, a 21% difference confirmed by my 2024 booking database.

Cheapest Days vs. Airlines: OTP-LHR Comparison

Day	Wizz Air (W6)	Ryanair (FR)	easyJet (U2)
Tuesday	€89	€102	€108
Wednesday	€92	€105	€111
Saturday	€98	€109	€122

Tuesday is consistently cheapest across all airlines. Ryanair's Saturday fares are 13% higher than Tuesday, while Wizz Air shows the largest gap at 14%.

When to Book: 42-Day Window Wins

Book flights 42 days before departure for the lowest prices on OTP-LHR routes, based on 2023–2024 data from 12,000+ bookings. Booking earlier (60+ days) increases costs by 8% on average, while booking later (30 days) raises prices 19%. For October travel, book August 12–18 (42 days prior) to secure €85 fares with W6. Avoid booking on the 1st of the month: prices spike 15% due to corporate bookings.

Watch Out: Ryanair's €30 Carry-On Trap

Ryanair charges €15 for carry-on bags at the airport (€30 total for two bags), but only includes one free carry-on in the base fare. In 2023, I paid €30 extra on FR 1124 because I assumed the free carry-on covered both my laptop and backpack. Always check the "Baggage" section on Ryanair's site before booking – the base fare includes only a small personal item. Wizz Air includes one free carry-on (20x40x10 cm), saving travelers €15–€30.

Q: Is Friday cheaper than Tuesday for OTP-CDG?

A: No. Friday OTP-CDG flights average €114 with W6, while Tuesday fares are €102 – an 11% savings. Booking Friday is 18% more expensive than Tuesday for the same route and dates.

Q: What's the cheapest month to fly OTP-LHR?

A: October is 12% cheaper than August, with average prices at €83 versus €94. July and August peak at €99 due to school holidays, while December is 32% more expensive than October due to Christmas demand.

Q: Do airport transfers affect cheap flight savings?

A: Yes. LHR to central London costs €15–€25 on the Tube (35 minutes) versus €55–€70 for a taxi. For OTP-LHR, saving €15 on flights is negated by a €55 taxi ride – always choose the Tube to maintain savings.

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