Phoenix (PHX) to Southampton (SOU) business class award flights

SOU → PHX

Lowest seen in the last 2 daysPlus fees$385.20Program

Air France-KLM Flying BlueLight fareAirline

Air FranceDepartingSun, Dec 6

Last checked 1d agoChecked 20 Oct 2026, 18:16 UTC

Which program and airline costs you least

Phoenix to Southampton in business class starts at 268.5K miles plus $385.20 — Air France through Air France-KLM Flying Blue. Alaska Airlines through Atmos Rewards charges the least cash — $29.00 — but wants 400K Atmos points.

Every way to book PHX to SOU with miles or points
Airline	Program
Air Francevia CDG, AMSAir France-KLM Flying Blue	Air France-KLM Flying BlueLight fare	Fewest miles268.5Kplus $385.20	$385.20
Delta Air Linesvia ATL, AMSAir France-KLM Flying Blue	Air France-KLM Flying BlueStandard fare	393Kplus $371.20	$371.20
Alaska Airlinesvia SAN, ORD, DUBAtmos Rewards	Atmos Rewards	400K Atmos pointsplus $29.00	Lowest fees$29.00

Where the space is over the next 60 days

PHX to SOU in business class: the facts

Over the next 60 days we hold business class seats from Phoenix to Southampton on 15 of the 15 departure days we have checked so far (45 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.

Air France-KLM Flying Blue
Days with space
13 of 15 checked
Lowest
268,500 miles
Typical day
270,000 miles
Cash on top
$371 to $385
Atmos Rewards
Days with space
2 of 15 checked
Lowest
400,000 Atmos points
Typical day
400,000 Atmos points
Cash on top
$29

PHX to SOU business class seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Air France-KLM Flying Blue	13 of 15 checked	268,500 miles	270,000 miles	$371 to $385
Atmos Rewards	2 of 15 checked	400,000 Atmos points	400,000 Atmos points	$29

Nonstop or with a connection

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

How to book it

Air France-KLM Flying Blue books on airfrance.fr: sign in there, search PHX to SOU in business class on a date with space, and pay in miles with the cash on top (from $371).
Atmos Rewards books on alaskaair.com: sign in there, search PHX to SOU in business class on a date with space, and pay in Atmos points with the cash on top (from $29).

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

More routes

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