v3.25.0.1

Material accounting policies - Going concern (Details) £ in Thousands, $ in Millions		12 Months Ended
	Jan. 24, 2025 USD ($)	Dec. 31, 2024 GBP (£)	Mar. 11, 2025 GBP (£)	Mar. 06, 2025 GBP (£)	Dec. 31, 2024 USD ($)	Dec. 20, 2024 USD ($)	Sep. 30, 2024 GBP (£)	Jun. 30, 2024 GBP (£)	Dec. 31, 2023 GBP (£)	Dec. 31, 2022 GBP (£)	Dec. 31, 2021 GBP (£)
Significant accounting policies
Cash and cash equivalents		£ 22,556					£ 42,806	£ 66,786	£ 48,680	£ 62,927	£ 212,660
Net shareholders' deficit		(499,341)					(55,328)	(42,081)	(49,779)	7,318	61,561
Cash and cash equivalents on hand		22,556					£ 42,806	£ 66,786	£ 48,680	£ 62,927	£ 212,660
Proceeds from issuing shares		15,629
Mudrick capital
Significant accounting policies
Non-contingent capital commitments | $						$ 25
Backstop capital commitments | $						25
Maximum | Mudrick capital
Significant accounting policies
Capital commitments receivable | $						$ 50
Liquidity position at the date of signing of the report
Significant accounting policies
Cash and cash equivalents		22,500	£ 77,000	£ 77,000
Net shareholders' deficit		(492,000)
Cash and cash equivalents on hand		£ 22,500	£ 77,000	77,000
Expected net cash outflows from operations over next 12-month period				£ 100,000
Convertible senior secured notes
Significant accounting policies
Mandatory cash balance under loan covenants | $					$ 10
Underwritten public offering | Share transaction
Significant accounting policies
Proceeds from issuing shares | $	$ 90
Underwritten public offering | Share transaction | Mudrick capital
Significant accounting policies
Proceeds from issuing shares | $	$ 25

X

- Definition

The amount of capital commitments receivable.

+ References

No definition available.

+ Details

Name:	evtl_CapitalCommitmentsReceivable
Namespace Prefix:	evtl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of backstop capital commitments.

+ References

No definition available.

+ Details

Name:	evtl_CapitalCommitmentsReceivableBackstopCommitment
Namespace Prefix:	evtl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of non contingent capital commitments.

+ References

No definition available.

+ Details

Name:	evtl_CapitalCommitmentsReceivableNonContingentFunding
Namespace Prefix:	evtl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Expected net cash outflows from operations over next 12-month period

+ References

No definition available.

+ Details

Name:	evtl_ExpectedNetCashOutflowsFromOperationsOverNext12MonthPeriod
Namespace Prefix:	evtl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Mandatory cash balance under loan covenants.

+ References

No definition available.

+ Details

Name:	evtl_MandatoryCashBalanceUnderLoanCovenants
Namespace Prefix:	evtl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2024-01-01
-Paragraph B13
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 54
-Subparagraph i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_CashAndCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of residual interest in the assets of the entity after deducting all its liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 1
-IssueDate 2024-01-01
-Paragraph 24
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2024-en-r&anchor=para_24_a&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 1
-IssueDate 2024-01-01
-Paragraph 32
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2024-en-r&anchor=para_32_a_i&doctype=Standard
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_a&doctype=Standard
-URIDate 2024-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_e&doctype=Standard
-URIDate 2024-03-27

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_b&doctype=Standard
-URIDate 2024-03-27

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 78
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_e&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_Equity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The cash inflow from issuing shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProceedsFromIssuingShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	ifrs-full_CounterpartiesAxis=evtl_MudrickCapitalManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=evtl_LiquidityPositionAtDateOfSigningOfReportMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=evtl_ConvertibleSeniorSecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	evtl_IfrsSaleOfStockAxis=evtl_UnderwrittenPublicOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_MajorOrdinaryShareTransactionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: