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<link:definition>999022 - Disclosure - Schedule Of Revenue By Major Customers By Reporting Segments (Detail)</link:definition>
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<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
<import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
<import namespace="http://fasb.org/us-gaap/2024" schemaLocation="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd" />
<import namespace="http://xbrl.sec.gov/country/2024" schemaLocation="https://xbrl.sec.gov/country/2024/country-2024.xsd" />
<import namespace="http://xbrl.sec.gov/currency/2024" schemaLocation="https://xbrl.sec.gov/currency/2024/currency-2024.xsd" />
<import namespace="http://xbrl.sec.gov/exch/2024" schemaLocation="https://xbrl.sec.gov/exch/2024/exch-2024.xsd" />
<import namespace="http://xbrl.sec.gov/naics/2024" schemaLocation="https://xbrl.sec.gov/naics/2024/naics-2024.xsd" />
<import namespace="http://xbrl.sec.gov/sic/2024" schemaLocation="https://xbrl.sec.gov/sic/2024/sic-2024.xsd" />
<import namespace="http://xbrl.sec.gov/stpr/2024" schemaLocation="https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd" />
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
<import namespace="http://xbrl.sec.gov/dei/2024" schemaLocation="https://xbrl.sec.gov/dei/2024/dei-2024.xsd" />
<import namespace="http://fasb.org/us-types/2024" schemaLocation="https://xbrl.fasb.org/us-gaap/2024/elts/us-types-2024.xsd" />
<import namespace="http://fasb.org/srt-types/2024" schemaLocation="https://xbrl.fasb.org/srt/2024/elts/srt-types-2024.xsd" />
<import namespace="http://fasb.org/srt/2024" schemaLocation="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd" />
<import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" />
<import namespace="http://xbrl.sec.gov/ecd-sub/2024" schemaLocation="https://xbrl.sec.gov/ecd/2024/ecd-sub-2024.xsd" />
<import namespace="http://xbrl.sec.gov/ecd/2024" schemaLocation="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd" />
<import namespace="http://www.xbrl.org/2006/ref" schemaLocation="http://www.xbrl.org/2006/ref-2006-02-27.xsd" />
<import namespace="http://fasb.org/srt-roles/2024" schemaLocation="https://xbrl.fasb.org/srt/2024/elts/srt-roles-2024.xsd" />
<element name="ContractorEscrow" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="lstr_ContractorEscrow" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="PurchasedTransportationCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_PurchasedTransportationCosts" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="InterestAndDebtIncomeExpense" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_InterestAndDebtIncomeExpense" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="DisclosureOfLeasesOfLesseeTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_DisclosureOfLeasesOfLesseeTextBlock" substitutionGroup="xbrli:item" />
<element name="ScheduleOfSupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_ScheduleOfSupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock" substitutionGroup="xbrli:item" />
<element name="FinanceAndOperatingLeaseMaturityTableTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_FinanceAndOperatingLeaseMaturityTableTextBlock" substitutionGroup="xbrli:item" />
<element name="ScheduleDiscountRateAndLeaseTermUsedInCalculatingLeaseLiabilitiesAndAssetsTableTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_ScheduleDiscountRateAndLeaseTermUsedInCalculatingLeaseLiabilitiesAndAssetsTableTextBlock" substitutionGroup="xbrli:item" />
<element name="BcoIndependentContractorMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_BcoIndependentContractorMember" substitutionGroup="xbrli:item" />
<element name="TruckBrokerageCarriersMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_TruckBrokerageCarriersMember" substitutionGroup="xbrli:item" />
<element name="RailIntermodalMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_RailIntermodalMember" substitutionGroup="xbrli:item" />
<element name="OceanAndAirCargoCarriersMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_OceanAndAirCargoCarriersMember" substitutionGroup="xbrli:item" />
<element name="BcoIndependentContractorTruckAndBrokerageCarriersTruckMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_BcoIndependentContractorTruckAndBrokerageCarriersTruckMember" substitutionGroup="xbrli:item" />
<element name="VanEquipmentMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_VanEquipmentMember" substitutionGroup="xbrli:item" />
<element name="UnsidedPlatformEquipmentMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_UnsidedPlatformEquipmentMember" substitutionGroup="xbrli:item" />
<element name="LessThanTruckloadMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_LessThanTruckloadMember" substitutionGroup="xbrli:item" />
<element name="OtherTruckTransportationMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_OtherTruckTransportationMember" substitutionGroup="xbrli:item" />
<element name="PercentageOfConsolidatedRevenue" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_PercentageOfConsolidatedRevenue" substitutionGroup="xbrli:item" />
<element name="NonVestedRestrictedStockAndDeferredStockUnitsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_NonVestedRestrictedStockAndDeferredStockUnitsMember" substitutionGroup="xbrli:item" />
<element name="DeferredStockUnitMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_DeferredStockUnitMember" substitutionGroup="xbrli:item" />
<element name="TwoThousandElevenEquityIncentivePlanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_TwoThousandElevenEquityIncentivePlanMember" substitutionGroup="xbrli:item" />
<element name="TwoThousandAndTwentyTwoDirectorsStockCompensationPlanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_TwoThousandAndTwentyTwoDirectorsStockCompensationPlanMember" substitutionGroup="xbrli:item" />
<element name="MaximumPercentageOfTargetAvailableForIssuance" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_MaximumPercentageOfTargetAvailableForIssuance" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesEarnedInExcessOfTarget" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesEarnedInExcessOfTarget" substitutionGroup="xbrli:item" />
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesEarnedInExcessOfTargetWeightedAverageGrantDateFairValue" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesEarnedInExcessOfTargetWeightedAverageGrantDateFairValue" substitutionGroup="xbrli:item" />
<element name="IncomeTaxesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_IncomeTaxesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="IncomeTaxesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_IncomeTaxesLineItems" substitutionGroup="xbrli:item" />
<element name="EstimatedAnnualEffectiveTaxRateForContinuingOperations" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_EstimatedAnnualEffectiveTaxRateForContinuingOperations" substitutionGroup="xbrli:item" />
<element name="ScheduleOfCashFlowSupplementalTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_ScheduleOfCashFlowSupplementalTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="ScheduleOfCashFlowSupplementalLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_ScheduleOfCashFlowSupplementalLineItems" substitutionGroup="xbrli:item" />
<element name="NumberOfCustomersAccountingFor10PercentOrMoreOfRevenue" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_NumberOfCustomersAccountingFor10PercentOrMoreOfRevenue" substitutionGroup="xbrli:item" />
<element name="EntityWideRevenueNoMajorCustomerAccountedForBenchmarkPercentage" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_EntityWideRevenueNoMajorCustomerAccountedForBenchmarkPercentage" substitutionGroup="xbrli:item" />
<element name="TransportationLogisticsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_TransportationLogisticsMember" substitutionGroup="xbrli:item" />
<element name="InsuranceMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_InsuranceMember" substitutionGroup="xbrli:item" />
<element name="InvestmentsMaximumMaturityPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_InvestmentsMaximumMaturityPeriod" substitutionGroup="xbrli:item" />
<element name="CorporateBondsCommercialPaperAndDirectObligationsOfGovernmentAgenciesMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_CorporateBondsCommercialPaperAndDirectObligationsOfGovernmentAgenciesMember" substitutionGroup="xbrli:item" />
<element name="FinanceLeaseOptionToPurchaseOptionValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="lstr_FinanceLeaseOptionToPurchaseOptionValue" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FinanceLeaseCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_FinanceLeaseCost" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="OperatingLeaseCostAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_OperatingLeaseCostAbstract" substitutionGroup="xbrli:item" />
<element name="OperatingLeasesRentIncomeExpenseNet" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_OperatingLeasesRentIncomeExpenseNet" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="LeaseRightOfUseAsset" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="lstr_LeaseRightOfUseAsset" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FinanceLeaseInterestRatePercentage" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="lstr_FinanceLeaseInterestRatePercentage" substitutionGroup="xbrli:item" />
<element name="LeverageRatioRequired" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_LeverageRatioRequired" substitutionGroup="xbrli:item" />
<element name="LineOfCreditFacilityOutstandingStockPercentageThatShouldBeAcquiredToTriggerEventOfDefault" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="lstr_LineOfCreditFacilityOutstandingStockPercentageThatShouldBeAcquiredToTriggerEventOfDefault" substitutionGroup="xbrli:item" />
<element name="AdditionalSecuredOvernightFinancingRate" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="lstr_AdditionalSecuredOvernightFinancingRate" substitutionGroup="xbrli:item" />
<element name="AgreementAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_AgreementAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="AgreementDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_AgreementDomain" substitutionGroup="xbrli:item" />
<element name="CommitmentsAndContingenciesDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_CommitmentsAndContingenciesDisclosureTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="CommitmentsAndContingenciesDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_CommitmentsAndContingenciesDisclosureLineItems" substitutionGroup="xbrli:item" />
<element name="GuaranteePaymentOfInsuranceClaimsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_GuaranteePaymentOfInsuranceClaimsMember" substitutionGroup="xbrli:item" />
<element name="CurrentInvestmentsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_CurrentInvestmentsMember" substitutionGroup="xbrli:item" />
<element name="NonCurrentInvestmentsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_NonCurrentInvestmentsMember" substitutionGroup="xbrli:item" />
<element name="DevelopmentOfPriorYearSelfInsuredClaimsEstimatesMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_DevelopmentOfPriorYearSelfInsuredClaimsEstimatesMember" substitutionGroup="xbrli:item" />
<element name="InsiderTradingArrangementsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="lstr_InsiderTradingArrangementsAbstract" substitutionGroup="xbrli:item" />
</schema>
