Private tours
Your own guide, your own pace, priced per group rather than per person on most listings.
Prices run from $47 to $997, and half of the 46 priced listings cost $379 or less. Most take 2 hours to 4 hours. The best reviewed with at least 100 reviews is Washington DC: Multilingual Private Day or Evening SUV Tour (4.9 from 118 reviews).
For the operators we researched and recommend, see our food tours and cooking classes in Washington DC, or the experiences overview.