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The best ways to book Washington (DCA, IAD, BWI) to London (LHR, LGW, LCY, STN, LTN) with miles and points, from award searches run on AwardWhiz in the last 30 days. Lowest seen: 27,500 points with Alaska Atmos Rewards. Last checked Fri, Oct 30, 2026.
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Award space changes by the hour. Search WAS → LON across every program at once before you transfer points.
Search live availability| Program | Cabin | Lowest points | Avg. taxes & fees | Dates seen |
|---|---|---|---|---|
| Alaska Atmos Rewards | Business | 175,000 | $29 | 1 |
| Delta SkyMiles | Business | 499,900 | $6 | 3 |
| JetBlue TrueBlue | Business | 768,100 | $6 | 3 |
| Alaska Atmos Rewards | Economy | 27,500 | $29 | 3 |
| JetBlue TrueBlue | Economy | 40,000 | $6 | 2 |
| Delta SkyMiles | Economy | 43,700 | $6 | 3 |
| Alaska Atmos Rewards | First | 70,000 | $26 | 1 |
| Delta SkyMiles | Premium Economy | 103,500 | $11 | 2 |
Points and fees are per passenger, one way. Fee averages include USD quotes only.