Washington (IAD) to Las Vegas (LAS) economy award flights

LAS → IAD

Lowest seen in the last 3 daysPlus fees$5.60Program

Atmos RewardsAirline

Alaska AirlinesDepartingMon, Nov 9

Last checked 2d agoChecked 19 Oct 2026, 18:09 UTC

Which program and airline costs you least

Washington to Las Vegas in economy starts at 12.5K Atmos points plus $5.60 — Alaska Airlines through Atmos Rewards.

Every way to book IAD to LAS with miles or points
Airline	Program
Alaska Airlinesvia SANAtmos Rewards	Atmos Rewards	Fewest points12.5K Atmos pointsplus $5.60	Lowest fees$5.60
United Airlinesvia DENLifeMiles	LifeMiles	13.5Kplus $5.60	$5.60
American Airlinesvia DFWAtmos Rewards	Atmos Rewards	17.5K Atmos pointsplus $25.60	$25.60
Delta Air Linesvia SLCAir France-KLM Flying Blue	Air France-KLM Flying BlueStandard fare	18Kplus $14.60	$14.60

IAD to LAS in economy: the facts

Over the next 60 days we hold economy seats from Washington to Las Vegas on 60 of the 60 departure days, through 3 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
60 of 60
Lowest
12,500 Atmos points
Typical day
17,500 Atmos points
Cash on top
$6 to $26
LifeMiles
Days with space
56 of 60
Lowest
13,500 miles
Typical day
13,500 miles
Cash on top
$6 to $58
Air France-KLM Flying Blue
Days with space
16 of 60
Lowest
18,000 miles
Typical day
18,500 miles
Cash on top
$15 to $20

IAD to LAS economy seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Atmos Rewards	60 of 60	12,500 Atmos points	17,500 Atmos points	$6 to $26
LifeMiles	56 of 60	13,500 miles	13,500 miles	$6 to $58
Air France-KLM Flying Blue	16 of 60	18,000 miles	18,500 miles	$15 to $20

Nonstop or with a connection

Nonstop seats on United Airlines. With a connection on Alaska Airlines, American Airlines and Delta Air Lines.

How to book it

Atmos Rewards books on alaskaair.com: sign in there, search IAD to LAS in economy on a date with space, and pay in Atmos points with the cash on top (from $6).
LifeMiles books on lifemiles.com: sign in there, search IAD to LAS in economy on a date with space, and pay in miles with the cash on top (from $6).
Air France-KLM Flying Blue books on airfrance.fr: sign in there, search IAD to LAS in economy on a date with space, and pay in miles with the cash on top (from $15).

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

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Every route we watch from Washington (IAD)

Get told the moment a IAD → LAS seat opens.

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