Reykjavik (KEF) to London (LHR) business class award flights

LHR → KEF

Lowest seen in the last 3 daysPlus fees$67.60Program

Atmos RewardsAirline

British AirwaysDepartingFri, Nov 13

Last checked 2d agoChecked 20 Oct 2026, 02:13 UTC

Which program and airline costs you least

Reykjavik to London in business class starts at 15K Atmos points plus $67.60 — British Airways through Atmos Rewards. Finnair through Atmos Rewards charges the least cash — $57.00 — but wants 45K Atmos points.

Every way to book KEF to LHR with miles or points
Airline	Program
British AirwaysNonstopAtmos Rewards	Atmos Rewards	Fewest points15K Atmos pointsplus $67.60	$67.60
British AirwaysNonstopBritish Airways Club	British Airways Club	26.8K AviosFees not quoted	Not quoted
Finnairvia HELAtmos Rewards	Atmos Rewards	45K Atmos pointsplus $57.00	Lowest fees$57.00

Where the space is over the next 60 days

Dashed days are prices last seen more than 3 days ago and not re-checked since.

KEF to LHR in business class: the facts

Over the next 60 days we hold business class seats from Reykjavik to London on 43 of the 43 departure days we have checked so far (17 days are not checked yet), through 2 programs. These figures are counted from the seats stored for those dates, not from a price history; the typical day is the median of each day's cheapest seat. Data updated October 21, 2026.

Atmos Rewards
Days with space
34 of 43 checked
Lowest
15,000 Atmos points
Typical day
45,000 Atmos points
Cash on top
$57 to $68
British Airways Club
Days with space
15 of 43 checked
Lowest
26,750 Avios
Typical day
26,750 Avios
Cash on top
Not quoted

KEF to LHR business class seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Atmos Rewards	34 of 43 checked	15,000 Atmos points	45,000 Atmos points	$57 to $68
British Airways Club	15 of 43 checked	26,750 Avios	26,750 Avios	Not quoted

Nonstop or with a connection

Nonstop seats on British Airways. With a connection on Finnair.

How to book it

Atmos Rewards books on alaskaair.com: sign in there, search KEF to LHR in business class on a date with space, and pay in Atmos points with the cash on top (from $57).
British Airways Club books on avios.com: sign in there, search KEF to LHR in business class on a date with space, and pay in Avios with the cash on top.

MilesZone finds the seat; it does not book it or take payment.

More routes

Get told the moment a KEF → LHR seat opens.

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Email only. Searching this route stays free for departures in the next 60 days.