Chicago (ORD) to London (LCY) business class award flights

LCY → ORD

Lowest seen in the last 10 daysPlus fees$37.00Program

Atmos RewardsAirline

American AirlinesDepartingWed, Nov 4

Last checked 9d agoChecked 12 Oct 2026, 09:51 UTC

Which program and airline costs you least

Chicago to London in business class starts at 85K Atmos points plus $37.00 — American Airlines through Atmos Rewards.

Every way to book ORD to LCY with miles or points
Airline	Program
American Airlinesvia PHL, DUBlast seen 12 Oct, not re-checked sinceAtmos Rewards	Atmos Rewards	Fewest points85K Atmos pointsplus $37.00	Lowest fees$37.00
KLMvia AMSlast seen 8 Oct, not re-checked sinceAir France-KLM Flying Blue	Air France-KLM Flying BlueStandard fare	174.5Kplus $374.90	$374.90
Delta Air Linesvia LGA → JFK (change airports), AMSlast seen 8 Oct, not re-checked sinceAir France-KLM Flying Blue	Air France-KLM Flying BlueStandard fare	233.5Kplus $379.40	$379.40
Air Francevia CDG, AMSlast seen 8 Oct, not re-checked sinceAir France-KLM Flying Blue	Air France-KLM Flying BlueLight fare	236.5Kplus $393.40	$393.40

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.

ORD to LCY in business class: the facts

Over the next 60 days we hold business class seats from Chicago to London on 29 of the 29 departure days we have checked so far (31 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 12, 2026.

Atmos Rewards
Days with space
9 of 29 checked
Lowest
85,000 Atmos points
Typical day
85,000 Atmos points
Cash on top
$37 to $47
Air France-KLM Flying Blue
Days with space
20 of 29 checked
Lowest
174,500 miles
Typical day
265,000 miles
Cash on top
$375 to $393

ORD to LCY business class seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Atmos Rewards	9 of 29 checked	85,000 Atmos points	85,000 Atmos points	$37 to $47
Air France-KLM Flying Blue	20 of 29 checked	174,500 miles	265,000 miles	$375 to $393

Nonstop or with a connection

No nonstop seats in the window. With a connection on Air France, American Airlines, Delta Air Lines and KLM.

How to book it

Atmos Rewards books on alaskaair.com: sign in there, search ORD to LCY in business class on a date with space, and pay in Atmos points with the cash on top (from $37).
Air France-KLM Flying Blue books on airfrance.fr: sign in there, search ORD to LCY in business class on a date with space, and pay in miles with the cash on top (from $375).

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

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Every route we watch from Chicago (ORD)

Get told the moment a ORD → LCY seat opens.

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