Lisbon (LIS) to Washington (IAD) business class award flights
Air France-KLM Flying BlueLight fareAirline
KLMDepartingThu, Oct 29Which program and airline costs you least
Lisbon to Washington in business class starts at 61K miles plus $450.89 — KLM through Air France-KLM Flying Blue. Delta Air Lines through Delta SkyMiles charges the least cash — $68.22 — but wants 495K miles. British Airways Club asks fewer points, 50.3K Avios, but we do not read its cash, so it is not ranked first. 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 | |
|---|---|
 Iberiavia MADBritish Airways Club | 50.3K AviosFees not quoted |
 Aer Lingusvia DUBBritish Airways Club | 56.5K AviosFees not quoted |
| KLMvia AMSAir France-KLM Flying Blue | 61Kplus $450.89 |
 Air Francevia CDGAir France-KLM Flying Blue | 61Kplus $450.99 |
 British Airwaysvia LHRBritish Airways Club | 110K AviosFees not quoted |
 United AirlinesNonstoplast seen 18 Oct, not re-checked sinceUnited MileagePlus | 204.8Kplus $62.49 |
 Delta Air Linesvia BOS, DTWDelta SkyMiles | 495Kplus $68.22 |
Where the space is over the next 60 days
LIS to IAD in business class: the facts
Over the next 60 days we hold business class seats from Lisbon to Washington on 35 of the 35 departure days we have checked so far (25 days are 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
- 34 of 35 checked
- Lowest
- 50,250 Avios
- Typical day
- 110,000 Avios
- Cash on top
- Not quoted
- Air France-KLM Flying Blue
- Days with space
- 1 of 35 checked
- Lowest
- 61,000 miles
- Typical day
- 61,000 miles
- Cash on top
- $451
- United MileagePlus
- Days with space
- 1 of 35 checked
- Lowest
- 204,800 miles
- Typical day
- 204,800 miles
- Cash on top
- $62
- Delta SkyMiles
- Days with space
- 1 of 35 checked
- Lowest
- 495,000 miles
- Typical day
- 495,000 miles
- Cash on top
- $68
Nonstop or with a connection
Nonstop seats on United Airlines. With a connection on Aer Lingus, Air France, British Airways, Delta Air Lines, Iberia and KLM.
How to book it
- British Airways Club books on avios.com: sign in there, search LIS to IAD in business class on a date with space, and pay in Avios with the cash on top.
- Air France-KLM Flying Blue books on airfrance.fr: sign in there, search LIS to IAD in business class on a date with space, and pay in miles with the cash on top (from $451).
- United MileagePlus books on united.com: sign in there, search LIS to IAD in business class on a date with space, and pay in miles with the cash on top (from $62).
- Delta SkyMiles books on delta.com: sign in there, search LIS to IAD in business class on a date with space, and pay in miles with the cash on top (from $68).
MilesZone finds the seat; it does not book it or take payment.
More routes
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