Share capital and reserves - Warrants issued but not exercised (Details) £ in Thousands	6 Months Ended
Jun. 30, 2026 GBP (£) shares	Jun. 30, 2026 $ / shares	Dec. 31, 2025 GBP (£) shares
Share capital and reserves
Warrants and options in issue value	69,575,000		69,575,000
Warrant reserve \| £	£ 36,638		£ 36,638
Number of shares entitled per public warrant	0.1
Number of warrants required to be exercised	10
Tranche A Warrants
Share capital and reserves
Warrants and options in issue - Issue Date	Jan. 24, 2025
Warrants and options in issue - Exercise price \| $ / shares		$ 6
Warrants and options in issue value	7,450,000		7,450,000
Warrant reserve \| £	£ 8,951		£ 8,951
Tranche B Warrants
Share capital and reserves
Warrants and options in issue - Issue Date	Jan. 24, 2025
Warrants and options in issue - Exercise price \| $ / shares		7.5
Warrants and options in issue value	7,500,000		7,500,000
Warrant reserve \| £	£ 14,212		£ 14,212
SF Warrants
Share capital and reserves
Warrants and options in issue - Issue Date	Mar. 13, 2024
Warrants and options in issue - Exercise price \| $ / shares		50
Warrants and options in issue value	50,000,000		50,000,000
Warrant reserve \| £	£ 3,907		£ 3,907
Warrants, expiration term after issuance	10 years
Virgin Atlantic Warrants
Share capital and reserves
Warrants and options in issue - Issue Date	Dec. 16, 2021
Warrants and options in issue - Exercise price \| $ / shares		100
Warrants and options in issue value	2,625,000		2,625,000
Warrant reserve \| £	£ 8,558		£ 8,558
MWC Option
Share capital and reserves
Warrants and options in issue - Issue Date	Dec. 16, 2021
Warrants and options in issue - Exercise price \| $ / shares		$ 115
Warrants and options in issue value	2,000,000		2,000,000
Warrant reserve \| £	£ 1,010		£ 1,010
Warrants Except SF Warrants
Share capital and reserves
Warrants, expiration term after issuance	5 years

Exercise price per share or per unit of warrants or rights outstanding.

No definition available.

Name:	evtl_ClassOfWarrantOrRightExercisePriceOfWarrantOrRights
Namespace Prefix:	evtl_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

No definition available.

+ Details

Name:	evtl_IfrsClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Namespace Prefix:	evtl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	evtl_IfrsClassOfWarrantOrRightOutstanding
Namespace Prefix:	evtl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Warrants or option issue date.

+ References

No definition available.

+ Details

Name:	evtl_IfrsWarrantsAndOptionsIssueDate
Namespace Prefix:	evtl_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants required to be exercised for holder to receive one share

+ References

No definition available.

+ Details

Name:	evtl_NumberOfWarrantsRequiredToBeExercisedForHolderToReceiveOneShare
Namespace Prefix:	evtl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Warrants, expiration term after issuance.

+ References

No definition available.

+ Details

Name:	evtl_WarrantsExpirationTermAfterIssuance
Namespace Prefix:	evtl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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

- Definition

A component of equity resulting from issuing share purchase warrants, other than those resulting from share-based payment arrangements. [Refer: Reserve of share-based payments]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 78
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_78_e&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Details

Name:	evtl_IfrsClassOfWarrantOrRightAxis=evtl_TrancheWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	evtl_IfrsClassOfWarrantOrRightAxis=evtl_TrancheBWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	evtl_IfrsClassOfWarrantOrRightAxis=evtl_StephenFitzpatrickWarrantInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	evtl_IfrsClassOfWarrantOrRightAxis=evtl_VirginAtlanticWarrantInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	evtl_IfrsClassOfWarrantOrRightAxis=evtl_MarcusWaleyCohenOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	evtl_IfrsClassOfWarrantOrRightAxis=evtl_WarrantsExceptSfWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: