Dublin (DUB) to Washington (IAD) business class reward flights

IAD → DUB

Lowest seen in the last 14 daysPlus fees$62.39Program

Atmos RewardsAirline

Aer LingusDepartingThu, Oct 29

Last checked 13d agoChecked 8 Oct 2026, 23:43 UTC

Which program and airline costs you least

Dublin to Washington in business class starts at 45K Atmos points plus $62.39 — Aer Lingus through Atmos Rewards. Aer Lingus through United MileagePlus charges the least cash — $39.09 — but wants 93K miles.

Every way to book DUB to IAD with miles or points
Airline	Program
Aer LingusNonstoplast seen 8 Oct, not re-checked sinceAtmos Rewards	Atmos Rewards	Fewest points45K Atmos pointsplus $62.39	$62.39
British Airwaysvia LHRlast seen 19 Oct, not re-checked sinceAtmos Rewards	Atmos Rewards	45K Atmos pointsplus $979.39	$979.39
American Airlinesvia DFWlast seen 19 Oct, not re-checked sinceAtmos Rewards	Atmos Rewards	70K Atmos pointsplus $67.99	$67.99
United Airlinesvia EWR → LGA (change airports)last seen 12 Oct, not re-checked sinceUnited MileagePlus	United MileagePlus	80Kplus $47.99	$47.99
Lufthansavia FRAlast seen 12 Oct, not re-checked sinceUnited MileagePlus	United MileagePlus	88Kplus $62.79	$62.79
Aer Lingusvia YYZlast seen 12 Oct, not re-checked sinceUnited MileagePlus	United MileagePlus	93Kplus $39.09	Lowest fees$39.09
Qatar Airwaysvia DOHlast seen 8 Oct, not re-checked sinceAtmos Rewards	Atmos Rewards	255K Atmos pointsplus $88.39	$88.39
TAP Air Portugalvia LISlast seen 12 Oct, not re-checked sinceUnited MileagePlus	United MileagePlus	295Kplus $68.09	$68.09
JetBluevia JFK → LGA (change airports)last seen 12 Oct, not re-checked sinceUnited MileagePlus	United MileagePlus	350Kplus $52.49	$52.49

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.

DUB to IAD in business class: the facts

Over the next 60 days we hold business class seats from Dublin to Washington on 58 of the 58 departure days we have checked so far (2 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 19, 2026.

Atmos Rewards
Days with space
37 of 58 checked
Lowest
45,000 Atmos points
Typical day
45,000 Atmos points
Cash on top
$62 to $986
United MileagePlus
Days with space
30 of 58 checked
Lowest
80,000 miles
Typical day
93,000 miles
Cash on top
$39 to $63

DUB to IAD business class seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Atmos Rewards	37 of 58 checked	45,000 Atmos points	45,000 Atmos points	$62 to $986
United MileagePlus	30 of 58 checked	80,000 miles	93,000 miles	$39 to $63

Nonstop or with a connection

Nonstop seats on Aer Lingus and United Airlines. With a connection on American Airlines, British Airways, JetBlue, Lufthansa, Qatar Airways and TAP Air Portugal.

How to book it

Atmos Rewards books on alaskaair.com: sign in there, search DUB to IAD in business class on a date with space, and pay in Atmos points with the cash on top (from $62).
United MileagePlus books on united.com: sign in there, search DUB to IAD in business class on a date with space, and pay in miles with the cash on top (from $39).

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

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Every route we watch from Dublin (DUB)

Get told the moment a DUB → IAD seat opens.

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