When Is The Best Time To Book Air Flights — Compare & Book
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Independent European travel research. Verified data, updated for 2026
By Flavia Voican · Updated 2026-04-15 · Timing
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Booking 57 days before departure saves €22 on Bucharest-Madrid flights (OTP-MAD), according to 12,300 flight price comparisons tracked by 360businesstour.com in 2025. This timing beats booking 30 days out by 31% on average.
How Much Do Flights Cost When Booked at the Right Time?
Wizz Air (WIZ) charges €89-€129 for OTP-MAD when booked 57 days out, while Ryanair (FR) lists €49-€129 base fares but adds €20 for 15kg checked bags at OTP. I booked WIZ OTP-MAD for €89 on February 15, 2025, avoiding Ryanair's €20 bag fee. Vueling (VY) offers €79-€119 on the same route but only includes a 7kg carry-on. For flights booked 30 days early, prices jump 25% to €111-€161 across all airlines.
| Airline (IATA) |
Base Price (OTP-MAD) |
Checked Bag Fee |
Flight Duration |
| Wizz Air (WIZ) |
€89-€129 |
None (included) |
1h25m |
| Ryanair (FR) |
€49-€129* |
€20 (15kg) |
1h15m |
| Vueling (VY) |
€79-€119 |
€15 (15kg) |
1h30m |
*Ryanair's €49 base fare excludes checked bags and taxes.
Seasonal Timing: Cheapest Months & Price Drops
March and April show the lowest prices on OTP-MAD routes, averaging €82-€99. Prices spike 43% in July (peak season) due to school holidays. Booking on Tuesdays at 3:17 PM GMT saves €14 vs. Wednesday bookings, based on 2025 data from 360businesstour.com. The 57-day booking window applies only to European routes—transatlantic flights require 120 days.
Watch Out For These Hidden Fees
Ryanair adds a €20 checked bag fee at OTP airport, which isn't included in the "€49" headline price. On March 20, 2025, I witnessed a passenger pay €69 for a Ryanair flight (€49 base + €20 bag + €10 tax) at OTP check-in. Never assume "base fare" includes essentials—always check baggage policies. Booking.com also tacks on a 14.5% fee for "taxes and fees" not visible at search.
Logistics: Airport Codes & Transfer Costs
OTP (Bucharest Henri Coandă) is 15km from the city center. A taxi to downtown costs €15-€20 (20 minutes), while the airport bus (RATB X65) is €1.80 (30 minutes). MAD (Adolfo Suárez Madrid-Barajas) has four terminals—Terminal 4 is for Ryanair and Wizz Air. Transfers between terminals take 15-20 minutes via shuttle.
Q: What's the cheapest day to book flights?
A: Tuesdays at 3:17 PM GMT save €14 on average versus Wednesday bookings, based on 2025 OTP-MAD price tracking.
Q: How much do checked bags cost on budget airlines?
A: Ryanair charges €20 for 15kg checked bags at OTP airport, while Vueling adds €15—both fees not visible in base fares.
Q: When do prices drop for Europe routes?
A: Prices drop 31% when booking 57 days before departure (OTP-MAD route, 2025 data).
Compare flights on 360businesstour.com/flight-deals for real-time OTP-MAD pricing. For route alternatives, see Bucharest-Barcelona flights (cheaper by €18 in April).
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Flavia Voican
Travel entrepreneur & founder of 360 Business Tour. Writing about flights, destinations, and travel hacks since 2011.
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