Chicago (ORD) to London (LHR) business class award flights
In business class from Chicago (ORD) to London (LHR), the best value is also the fewest miles: 55,000 Atmos points plus $26 on American Airlines through Atmos Rewards (checked 3 Nov 2026).
Atmos RewardsAirline
American AirlinesDepartingSat, Nov 7Which program and airline costs you least
Chicago to London in business class: is 55K Atmos points + $25.60 — American Airlines through Atmos Rewards. 54K Avios, fees not quoted (about $29) on Aer Lingus through British Airways Club was open on 27 Oct; not re-checked since. British Airways adds taxes and carrier charges at booking: £499 on an off-peak London to New York Club World return since 27 May 2026. AwardWallet, May 2026.
| Airline | ||||
|---|---|---|---|---|
| American AirlinesBest valuevia CLTAtmos Rewards | 55K Atmos pointsplus $25.60 | |||
 Aer Lingusvia DUBAtmos Rewards | 55K Atmos pointsplus $29.00 | |||
 Air Francevia CDGAir France-KLM Flying Blue | 60Kplus $353.90 | |||
 KLMvia AMSAir France-KLM Flying Blue | 60Kplus $364.30 | |||
 Delta Air Linesvia JFKAir France-KLM Flying Blue | 95.5Kplus $238.90 | |||
 British AirwaysNonstopAtmos Rewards | 55K Atmos pointsplus $1,004.00 | |||
| Delta Air Linesvia DTWDelta SkyMiles | 440.5Kplus $5.60 | |||
| Seen earlier, not re-checked since | ||||
| Aer Lingusvia DUBlast seen 27 Oct, not re-checked sinceBritish Airways Club | 54K AviosFees not quoted, about $29 | |||
 Iberiavia MADlast seen 27 Oct, not re-checked sinceBritish Airways Club | 57K AviosFees not quoted | |||
| British AirwaysNonstoplast seen 27 Oct, not re-checked sinceBritish Airways Club | 88K AviosFees not quoted, about $1,004 | |||
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 LHR in business class: the facts
Over the next 60 days we hold business class seats from Chicago to London on 59 of the 59 departure days we have checked so far (1 day is not checked yet), through 4 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 .
- British Airways Club
- Days with space
- 27 of 59 checked
- Lowest
- 54,000 Avios
- Typical day
- 54,000 Avios
- Cash on top
- Not quoted
- Atmos Rewards
- Days with space
- 46 of 59 checked
- Lowest
- 55,000 Atmos points
- Typical day
- 85,000 Atmos points
- Cash on top
- $26 to $1,582
- Air France-KLM Flying Blue
- Days with space
- 57 of 59 checked
- Lowest
- 60,000 miles
- Typical day
- 208,500 miles
- Cash on top
- $239 to $364
- Delta SkyMiles
- Days with space
- 2 of 59 checked
- Lowest
- 440,500 miles
- Typical day
- 440,500 miles
- Cash on top
- $6
Nonstop or with a connection
Nonstop seats on British Airways. With a connection on Aer Lingus, Air France, American Airlines, Delta Air Lines, Iberia and KLM.
How to book it
- British Airways Club books on avios.com: sign in there, search ORD to LHR in business class on a date with space, and pay in Avios with the cash on top.
- Atmos Rewards books on alaskaair.com: sign in there, search ORD to LHR in business class on a date with space, and pay in Atmos points with the cash on top (from $26).
- Air France-KLM Flying Blue books on airfrance.fr: sign in there, search ORD to LHR in business class on a date with space, and pay in miles with the cash on top (from $239).
- Delta SkyMiles books on delta.com: sign in there, search ORD to LHR in business class on a date with space, and pay in miles with the cash on top (from $6).
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