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Financial instruments and risk management - Foreign exchange on and off-balance sheet exposure (Details) $ in Thousands | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2019 MXN ($) $ / $ | Dec. 31, 2018 MXN ($) $ / $ | Apr. 29, 2021 $ / $ | Dec. 31, 2020 $ / $ | Dec. 31, 2020 Q / $ | Dec. 31, 2020 ₡ / $ | Dec. 31, 2020 USD ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 Q / $ | Dec. 31, 2019 ₡ / $ | Dec. 31, 2019 USD ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2018 Q / $ | Dec. 31, 2018 ₡ / $ | Dec. 31, 2018 MXN ($) | Dec. 31, 2017 MXN ($)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  | $ 506,468,000 | $ 10,103,385 |  |  | $ 400,025,000 | $ 7,979,972 |  |  | $ 5,862,942 | $ 6,950,879
Other accounts receivable, net |  |  |  |  |  |  | 28,104,000 | 560,640 |  |  |  | 923,000 |  |  |  |
Total assets |  |  |  |  |  |  | 3,418,223,000 | 68,189,113 |  |  |  | 63,295,127 |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial debt (Note 5) |  |  |  |  |  |  |  | 5,354,633 |  |  |  | 4,975,969 |  |  | 3,523,198 |
Lease liabilities |  |  |  |  |  |  |  | 44,130,542 |  |  |  | 40,517,045 |  |  | $ 39,565,146 |
Suppliers |  |  |  |  |  |  | 112,275,000 | 2,239,736 |  |  |  | 1,597,099 |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  | 9,657 |  |  |  |  |  |  |  |
Total liabilities |  |  |  |  |  |  | $ 3,278,055,000 | $ 65,392,928 |  |  |  | $ 57,765,444 |  |  |  |
Exchange rate | 18.8452 | 19.6829 | 19.9785 | 19.9487 | 7.8095 | 615.7800 | 19.9487 |  | 7.6988 | 573.4400 | 18.8452 |  | 7.7440 | 609.6100 |  |
Unrealized gains relating to the foreign currency forward contracts is included in OCI |  | $ 14,241 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net gains on foreign currency forward contacts | $ 4,199 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss on foreign currency forward contract |  | $ 52,516 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease liability designated as hedging forecasted revenues over the remaining lease term |  |  |  |  |  |  |  |  |  |  | $ 2,100,000,000 |  |  |  |  |
Hedging relationship for foreign exchange rate with non-derivative financial instruments, which represent a portion of the financial assets denominated in USD |  |  |  |  |  |  | $ 410,000,000 |  |  |  |  |  |  |  |  |
Recognized leasing liabilities, which have been designated as hedging instruments, forecasted revenues over the remaining lease term |  |  |  |  |  |  | 1,500,000,000 |  |  |  | 1,700,000,000 |  |  |  |  |
Recognized financial assets designated under hedging strategy |  |  |  |  |  |  | 60,500,000 |  |  |  | 166,700,000 |  |  |  |  |
Foreign currency |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  | 495,612,000 |  |  |  | 373,099,000 |  |  |  |  |
Other accounts receivable, net |  |  |  |  |  |  | 39,997,000 |  |  |  | 23,620,000 |  |  |  |  |
Guarantee deposits |  |  |  |  |  |  | 479,566,000 |  |  |  | 437,499,000 |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  | 10,000 |  |  |  | 7,088,000 |  |  |  |  |
Total assets |  |  |  |  |  |  | 1,015,185,000 |  |  |  | 841,306,000 |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial debt (Note 5) |  |  |  |  |  |  | 183,806,000 |  |  |  | 176,927,000 |  |  |  |  |
Lease liabilities |  |  |  |  |  |  | 2,334,153,000 |  |  |  | 2,263,849,000 |  |  |  |  |
Suppliers |  |  |  |  |  |  | 174,553,000 |  |  |  | 76,471,000 |  |  |  |  |
Other taxes and fees payable |  |  |  |  |  |  | 16,105,000 |  |  |  | 22,486,000 |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  | 484,000 |  |  |  |  |  |  |  |  |
Total liabilities |  |  |  |  |  |  | 2,709,101,000 |  |  |  | 2,539,733,000 |  |  |  |  |
Net foreign currency position |  |  |  |  |  |  | $ (1,693,916,000) |  |  |  | $ (1,698,427,000) |  |  |  |  |
Aircraft rental expense | Foreign currency forward contract |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of expense hedged |  | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- 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 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of financial assets that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_8_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of gain (loss) on the derivative contracts, which is included in the other comprehensive income. + References No definition available. + Details
Name: | vlrs_UnrealizedGainLossOnDerivativeContracts
Namespace Prefix: | vlrs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=vlrs_AircraftRentalExpenseRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_HedgingInstrumentsAxis=ifrs-full_ForwardContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |