| Cover | Apr. 25, 2024 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 25, 2024 |
| Entity File Number | 001-36288 |
| Entity Registrant Name | Akari Therapeutics, Plc |
| Entity Central Index Key | 0001541157 |
| Entity Tax Identification Number | 98-1034922 |
| Entity Incorporation, State or Country Code | X0 |
| Entity Address, Address Line One | 22 Boston Wharf Road FL 7 |
| Entity Address, City or Town | Boston |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02210 |
| City Area Code | 929 |
| Local Phone Number | 274-7510 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| ADR [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | American Depository Shares, each representing 2,000 Ordinary Shares |
| Trading Symbol | AKTX |
| Security Exchange Name | NASDAQ |
| Ordinary Shares, par value $0.0001 per share [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Ordinary Shares, par value $0.0001 per share* |
| No Trading Symbol Flag | true |
