OAG - Southwest Flight Data Discrepancy – Incident details

Southwest Flight Data Discrepancy

Resolved
Operational
Started 5 days agoLasted 5 days

Affected

Flight Info Products

Operational from 6:13 PM to 10:41 AM

Flight Info Direct

Operational from 6:13 PM to 10:41 AM

Flight Info API

Operational from 6:13 PM to 10:41 AM

Flight Info Alerts

Operational from 6:13 PM to 10:41 AM

Flight Info Developer Portal

Operational from 6:13 PM to 10:41 AM

Status Products

Operational from 6:13 PM to 10:41 AM

Updates
  • Resolved
    Resolved

    We are pleased to confirm that this issue has now been fully resolved as of 6th February 2026.

    This includes the messages from the early processing queue, which were successfully processed and fully dispersed as of Friday, 6th February 2026. Based on the most recent data currently being received, we are now seeing the correct WN timeliness indicators and messaging as expected.

    Thank you for your continued patience and understanding while we investigated and worked through this matter with Southwest .

  • Monitoring
    Monitoring

    We are currently monitoring the impact of the data supplied by Southwest.

  • Investigating
    Investigating

    This issue affects all status products:-

    Flight Info Direct - Status

    Flight Info API - Status

    Flight Info Alerts - Status

    Status FVXML API

    Status FVBatch API

    Status FV Dynamic

    Status FV FNB

    Status Flight Leg Report

    Root Cause: Last week, we identified an issue affecting a subset of Southwest flights where departure or arrival times had differing local and UTC dates. This was caused by a recent Southwest system change that impacted flight origination time interpretation, resulting in incorrect 24-hour delay indicators.

    Resolution: Working closely with Southwest, we investigated and resolved the root cause. The fix was fully implemented at approximately 23:30 UTC on January 29, with data monitored and confirmed correct throughout the weekend.

    Current Status: A small number of affected messages remain due to Southwest's early-processing queue, which generates messages up to a week before flight dates. Messages created and queued before the January 29 fix are still within the system. We are unable to purge these messages as doing so would remove both correct and incorrect messages.

    Expected Resolution:

    • Affected flights are rapidly decreasing (expected maximum of 32 flights on Friday, February 6)

    • All early queue messages should be exhausted by end of day Friday, February 6 (UTC)

    • From February 7 (UTC) onwards, all data will be completely free from this issue

    We apologise for any inconvenience this may cause and thank you for your patience and understanding.