London skyline

Boston (BOS) to London (LHR) business class award flights

In business class from Boston (BOS) to London (LHR), the best value is also the fewest miles: 45,000 Atmos points plus $26 on American Airlines through Atmos Rewards (checked 3 Nov 2026).

DateDates
CabinTravellers

Who’s flying?

Adults12 and over
1
Cabin
Best value right now45,000 Atmos pointsPlus fees$25.60ProgramAtmos RewardsAtmos RewardsAirlineAmerican AirlinesAmerican AirlinesDepartingWed, Nov 18
Last checked 2h agoChecked

Which program and airline costs you least

Boston to London in business class: is 45K Atmos points + $25.60 — American Airlines through Atmos Rewards.

Every way to book BOS to LHR with miles or points
Airline
American AirlinesAmerican AirlinesBest valuevia JFKAtmos Rewards45K Atmos pointsplus $25.60
Aer LingusAer Lingusvia DUBAtmos Rewards45K Atmos pointsplus $29.00
British AirwaysBritish AirwaysNonstopAtmos Rewards45K Atmos pointsplus $1,004.00
Delta Air LinesDelta Air LinesNonstopDelta SkyMiles125Kplus $5.60
Air FranceAir Francevia CDGAir France-KLM Flying Blue109Kplus $353.90
KLMKLMvia AMSAir France-KLM Flying Blue109Kplus $364.30
Virgin AtlanticVirgin AtlanticNonstopVirgin Atlantic Flying Club125K Virgin Pointsplus $696.10
Seen earlier, not re-checked since
Aer LingusAer Lingusvia SNNlast seen 27 Oct, not re-checked sinceBritish Airways Club54K AviosFees not quoted, about $26
British AirwaysBritish AirwaysNonstoplast seen 27 Oct, not re-checked sinceBritish Airways Club88K AviosFees not quoted, about $1,004

BOS to LHR in business class: the facts

Over the next 60 days we hold business class seats from Boston to London on 60 of the 60 departure days, through 5 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 .

  • Atmos Rewards
    Days with space
    39 of 60
    Lowest
    45,000 Atmos points
    Typical day
    70,000 Atmos points
    Cash on top
    $26 to $1,574
  • British Airways Club
    Days with space
    29 of 60
    Lowest
    54,000 Avios
    Typical day
    54,000 Avios
    Cash on top
    Not quoted
  • Air France-KLM Flying Blue
    Days with space
    59 of 60
    Lowest
    109,000 miles
    Typical day
    291,000 miles
    Cash on top
    $354 to $364
  • Delta SkyMiles
    Days with space
    60 of 60
    Lowest
    125,000 miles
    Typical day
    492,500 miles
    Cash on top
    $6 to $35
  • Virgin Atlantic Flying Club
    Days with space
    50 of 60
    Lowest
    125,000 Virgin Points
    Typical day
    325,000 Virgin Points
    Cash on top
    $696 to $699

Nonstop or with a connection

Nonstop seats on British Airways, Delta Air Lines and Virgin Atlantic. With a connection on Aer Lingus, Air France, American Airlines and KLM.

How to book it

  1. Atmos Rewards books on alaskaair.com: sign in there, search BOS to LHR in business class on a date with space, and pay in Atmos points with the cash on top (from $26).
  2. British Airways Club books on avios.com: sign in there, search BOS to LHR in business class on a date with space, and pay in Avios with the cash on top.
  3. Air France-KLM Flying Blue books on airfrance.fr: sign in there, search BOS to LHR in business class on a date with space, and pay in miles with the cash on top (from $354).
  4. Delta SkyMiles books on delta.com: sign in there, search BOS to LHR in business class on a date with space, and pay in miles with the cash on top (from $6).
  5. Virgin Atlantic Flying Club books on virginatlantic.com: sign in there, search BOS to LHR in business class on a date with space, and pay in Virgin Points with the cash on top (from $696).

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

Get told when a BOS → LHR seat is cheap.

We re-check that exact seat seconds before the email leaves, so what you open is still there.

Email only. Alerts and search are Pro.