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Updated weekly · Last refresh Oct 27

Southwest Airlines Data Analyst Interview Questions

The questions to prepare for a Southwest Airlines Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 7 questions + 3 drills · ~86 min
Efficient Multi-Table JoinsMedium

Tests SQL join strategy, query structure, and performance considerations.

sqlSouthwest Airlines
Professional Data StructuresMedium

Tests your ability to choose and use appropriate data structures for analytics and data modeling.

technical skillsData Structuresprofessional experienceSouthwest Airlines
Solving a Data Analysis ProblemMedium

Tests your approach to structuring and communicating a data analysis solution.

Data AnalysisProblem SolvingSouthwest Airlines
Explaining SQL SubqueriesMedium

Evaluates your understanding of SQL subqueries and when to use them.

SubqueriessqlSouthwest Airlines
Complex SQL for Large DatasetsHard

Tests query design, performance thinking, and correctness on large-scale data.

large datasetsquery optimizationsqlSouthwest Airlines
Live SQL Problem SolvingHard

Tests real-time SQL execution, reasoning, and ability to communicate your approach while coding.

sqlSouthwest Airlines
Optimizing Poorly Performing SQLHard
Practice
Practice drill

Optimize a PostgreSQL reporting query by reducing scanned rows, preserving unmatched records, and selecting the latest related review efficiently.

database optimizationlarge datasetsperformanceTata Consultancy Services (North America)PPriority Technology Holdings, LLCZillow
Optimizing Slow SQL QueriesHard
Practice
Practice drill

Optimize a PostgreSQL transaction query that filters, aggregates, ranks, and returns top merchants efficiently on large tables.

Performance Tuningdatabase optimizationlarge datasetsSprinter HealthSentiLinkAutodesk
Top Users by Recent Transaction VolumeMedium
Practice
Practice drill

Find the top 3 users by completed transaction volume in the last 30 days using joins and aggregation.

Data Analysisquery optimizationsqlTTier 1 BankCCash AppChime
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2
Behavioral & Leadership10 questions · ~80 min
Taking Initiative on a Finance ProjectEasy

Tests initiative and ownership by asking for a concrete example of proactively improving a financial process or analysis.

LeadershipOwnershipSouthwest Airlines
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3
More topics1 question · ~8 min
The finish line: interview-readyComplete all 18 questions plus 3 hands-on drills to finish this plan.