Peak periods · honest pricing
Peak surcharge on Heathrow taxis explained.
Peak periods add 15% to the standard fare — Friday 16:00–19:00, Sunday 18:00–22:00, and UK public holidays. Declared at booking, not after. Outside these three windows, off-peak rates apply.
Peak multiplier
+15%
Friday peak
16:00–19:00
Sunday peak
18:00–22:00
Bank holidays
All day
When does peak apply?
Three windows:
- Friday 16:00–19:00 — Friday afternoon rush, M25 congestion peaks, weekend exodus.
- Sunday 18:00–22:00 — Sunday evening return traffic, business-traveller pre-week-start arrivals.
- UK public holidays — Christmas Day, Boxing Day, New Year's Day, Good Friday, Easter Monday, May Day, Spring Bank Holiday, Summer Bank Holiday.
Outside these windows — Monday through Thursday all day, Friday before 16:00, Saturday all day, Sunday before 18:00 — off-peak rates apply.
How much is the peak surcharge?
15% on top of the published off-peak fare, rounded up to the nearest £5.
- Oxford £90 off-peak → £105 peak
- Birmingham £210 off-peak → £245 peak
- Cardiff £245 off-peak → £285 peak
- Reading £80 off-peak → £95 peak
- Milton Keynes £120 off-peak → £140 peak
The peak fare is shown on the route page next to the off-peak fare, and on the booking form before you confirm.
Why does peak cost more?
The road takes longer during peaks, and the operator's earnings model needs protection. A Cardiff trip that takes 6 hours off-peak takes 7+ hours during Friday rush. Without peak adjustment, the driver loses ~£25 of effective hourly earnings on that single trip.
The 15% surcharge restores the £30/hour earnings target — see how every fare is built for the model.
Is this the same as Uber surge?
No — peak is declared at booking, predictable, and fixed at 15%. Uber surge is dynamic, opaque, and can hit 2-3× base fare during peaks. Heathrow → Oxford on Uber at Friday 5pm can quote £200+; Kings caps the same trip at £105.
The honest comparison: with Kings, you book Tuesday and pay Friday what you saw on Tuesday. With Uber, you book Friday and pay whatever the algorithm decides. Full comparison here.
Can I avoid peak by changing my flight time?
Yes. A Tuesday 10am Heathrow pickup pays the off-peak fare. A Friday 5pm pickup pays peak. If your flight schedule is flexible, an early-morning or mid-week arrival is the cheapest combination.
For business travellers, off-peak overnight transfers (10pm-4am) also pay the standard off-peak fare — no overnight surcharge from Kings.
Off-peak or peak — both transparent