Retrieve airline schedule data and codeshare relationships via OAG Schedules API
domain: developers.oag.com · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Authenticate to OAG API using an API key in the request header
GET /schedules with origin, destination, departureDate, and carrierCode parameters
Parse the scheduleLegs array to identify codeshare flights by checking the operatingCarrier vs. marketingCarrier fields
Filter to non-stop segments and extract departure/arrival times in UTC and local time with timezone codes
Cross-reference against aircraft equipment type using the aircraftType field to filter out the smallest regional jets if needed
Cache schedule data with a 24-hour TTL and invalidate on receipt of an OAG schedule change notification
Known gotchas
OAG schedule data includes effective and discontinued date ranges per schedule record; querying without effective-date filtering returns historical schedules mixed with current ones
Codeshare flights appear as separate schedule records for each marketing carrier; deduplicating on operating flight number and departure time is required to avoid showing the same physical flight multiple times
OAG uses SSIM (Standard Schedules Information Manual) day-of-week coding (1=Monday, 7=Sunday) in some endpoints; this differs from ISO weekday numbering used by most programming languages
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