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64+ Expedia questions

Expedia interview questions and how to prepare

The questions candidates report from Expedia interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Expedia's interview style.

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ZorixOS tracks 64 community-reported Expedia interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 78 original ZorixOS practice questions written in Expedia's known interview style (not claimed as asked at Expedia), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Expedia.

Updated July 2026

Expedia interview questions candidates report

Community-reported from real Expedia interviews (open-source dataset), most-asked first. Showing 60 of 64. Each links to its source.

  1. Basic Calculator II
    MathStringStack
    Medium100% asked
  2. Count and Say
    String
    Medium100% asked
  3. Find the Smallest Divisor Given a Threshold
    ArrayBinary Search
    Medium100% asked
  4. LFU Cache
    Hash TableLinked ListDesignDoubly-Linked List
    Hard100% asked
  5. Remove Duplicate Letters
    StringStackGreedyMonotonic Stack
    Medium100% asked
  6. Remove Stones to Minimize the Total
    ArrayGreedyHeap (Priority Queue)
    Medium100% asked
  7. The kth Factor of n
    MathNumber Theory
    Medium96% asked
  8. Valid Triangle Number
    ArrayTwo PointersBinary SearchGreedy
    Medium96% asked
  9. Break a Palindrome
    StringGreedy
    Medium93% asked
  10. Divide Players Into Teams of Equal Skill
    ArrayHash TableTwo PointersSorting
    Medium93% asked
  11. Minimum One Bit Operations to Make Integers Zero
    MathDynamic ProgrammingBit ManipulationRecursion
    Hard93% asked
  12. Minimum Replacements to Sort the Array
    ArrayMathGreedy
    Hard93% asked
  13. Minimum Swaps to Group All 1's Together
    ArraySliding Window
    Medium93% asked
  14. Most Visited Sector in a Circular Track
    ArraySimulation
    Easy93% asked
  15. Number of Good Binary Strings
    Dynamic Programming
    Medium93% asked
  16. Rearrange Words in a Sentence
    StringSorting
    Medium93% asked
  17. String Compression
    Two PointersString
    Medium93% asked
  18. The Earliest Moment When Everyone Become Friends
    ArrayUnion-FindSorting
    Medium93% asked
  19. Unique Substrings With Equal Digit Frequency
    Hash TableStringRolling HashCounting
    Medium93% asked
  20. Valid Word
    String
    Easy93% asked
  21. Group Anagrams
    ArrayHash TableStringSorting
    Medium92% asked
  22. Merge Intervals
    ArraySorting
    Medium92% asked
  23. Sliding Window Maximum
    ArrayQueueSliding WindowHeap (Priority Queue)
    Hard92% asked
  24. Maximum Palindromes After Operations
    ArrayHash TableStringGreedy
    Medium84% asked
  25. Minimum Number of Chairs in a Waiting Room
    StringSimulation
    Easy84% asked
  26. Valid Parentheses
    StringStack
    Easy84% asked
  27. Capacity To Ship Packages Within D Days
    ArrayBinary Search
    Medium80% asked
  28. Find Pivot Index
    ArrayPrefix Sum
    Easy80% asked
  29. House Robber
    ArrayDynamic Programming
    Medium80% asked
  30. Koko Eating Bananas
    ArrayBinary Search
    Medium80% asked
  31. LRU Cache
    Hash TableLinked ListDesignDoubly-Linked List
    Medium80% asked
  32. Max Area of Island
    ArrayDepth-First SearchBreadth-First SearchUnion-Find
    Medium80% asked
  33. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
    ArrayGreedySorting
    Medium80% asked
  34. Maximum Frequency Stack
    Hash TableStackDesignOrdered Set
    Hard80% asked
  35. Two Sum
    ArrayHash Table
    Easy80% asked
  36. Best Time to Buy and Sell Stock
    ArrayDynamic Programming
    Easy76% asked
  37. Count Vowel Substrings of a String
    Hash TableString
    Easy76% asked
  38. Flip String to Monotone Increasing
    StringDynamic Programming
    Medium76% asked
  39. Longest Substring Without Repeating Characters
    Hash TableStringSliding Window
    Medium76% asked
  40. Number of Islands
    ArrayDepth-First SearchBreadth-First SearchUnion-Find
    Medium76% asked
  41. Number of Visible People in a Queue
    ArrayStackMonotonic Stack
    Hard76% asked
  42. Roman to Integer
    Hash TableMathString
    Easy76% asked
  43. Trapping Rain Water
    ArrayTwo PointersDynamic ProgrammingStack
    Hard76% asked
  44. Cheapest Flights Within K Stops
    Dynamic ProgrammingDepth-First SearchBreadth-First SearchGraph Theory
    Medium65% asked
  45. Container With Most Water
    ArrayTwo PointersGreedy
    Medium65% asked
  46. Degree of an Array
    ArrayHash Table
    Easy65% asked
  47. Find the Index of the First Occurrence in a String
    Two PointersStringString Matching
    Easy65% asked
  48. Generate Parentheses
    StringDynamic ProgrammingBacktracking
    Medium65% asked
  49. Kth Smallest Element in a BST
    TreeDepth-First SearchBinary Search TreeBinary Tree
    Medium65% asked
  50. Minimum Number of Swaps to Make the String Balanced
    Two PointersStringStackGreedy
    Medium65% asked
  51. Reorganize String
    Hash TableStringGreedySorting
    Medium65% asked
  52. Rotting Oranges
    ArrayBreadth-First SearchMatrix
    Medium65% asked
  53. Validate Binary Search Tree
    TreeDepth-First SearchBinary Search TreeBinary Tree
    Medium65% asked
  54. Verify Preorder Sequence in Binary Search Tree
    ArrayStackTreeBinary Search Tree
    Medium65% asked
  55. Word Ladder
    Hash TableStringBreadth-First Search
    Hard65% asked
  56. K-diff Pairs in an Array
    ArrayHash TableTwo PointersBinary Search
    Medium51% asked
  57. Letter Combinations of a Phone Number
    Hash TableStringBacktracking
    Medium51% asked
  58. Max Consecutive Ones III
    ArrayBinary SearchSliding WindowPrefix Sum
    Medium51% asked
  59. Maximum Number of Events That Can Be Attended
    ArrayGreedySortingHeap (Priority Queue)
    Medium51% asked
  60. Maximum Points You Can Obtain from Cards
    ArraySliding WindowPrefix Sum
    Medium51% asked

These are the 60 most-reported of 64 tracked Expedia questions. Create a free account to drill the full set with solutions and an AI interviewer.

Practice questions in Expedia's style

Original ZorixOS questions written the way Expedia interviews, so you rehearse the real format. Not claimed as asked at Expedia.

  1. Imagine a user is trying to book a flight on Expedia and encounters a 'timeout' error before payment. How would you debug this issue, considering the scale of Expedia's operations?

    Software EngineerDebugging, System ScalabilityTests: Evaluates problem-solving skills and understanding of distributed systems under load.

  2. Expedia is seeing increased latency in its search results API. Design a system to identify the root cause and propose solutions for improving performance. Consider microservices architecture.

    Software EngineerSystem Design, Performance OptimizationTests: Assesses system design capabilities and ability to handle high-throughput services.

  3. A customer reports that a hotel they booked through Expedia is showing incorrect amenities on the listing page, leading to dissatisfaction. How would you investigate and fix this data inconsistency?

    Software EngineerData Integrity, Backend SystemsTests: Tests understanding of data management and troubleshooting user-reported issues.

  4. Design a system to handle real-time price fluctuations for flights and hotels across Expedia's platform, ensuring consistency and minimizing the risk of overselling.

    Software EngineerDistributed Systems, Real-time DataTests: Evaluates ability to design systems for dynamic data and transactional integrity.

  5. Expedia wants to implement a feature that suggests alternative travel dates or destinations if the initial search yields no results or very expensive options. How would you approach building this recommendation engine?

    Software EngineerAlgorithmic Design, Recommendation SystemsTests: Assesses understanding of algorithms and building intelligent features.

  6. You've identified a bug where users on older versions of the Expedia mobile app are experiencing crashes during checkout. Outline your strategy for identifying the problematic code and deploying a fix.

    Software EngineerDebugging, Mobile DevelopmentTests: Tests debugging skills in a mobile context and deployment strategies.

72+ more Expedia-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

Keep exploring

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Expedia Interview Questions (2026) | ZorixOS