# Around half of the airlines flying from Heathrow were back online in some form by Sunday, and British Airways has been…
*Canonical page:* https://truthscore.com/claim/around-half-of-the-airlines-flying-from-heathrow-were-back-online-in--6b904d04
*Numbers under lens:* **Evidence-weighted** (`log-odds@1`)
*Machine twins:* https://truthscore.com/claim/around-half-of-the-airlines-flying-from-heathrow-were-back-online-in--6b904d04.md · JSON at https://truthscore.com/api/v1
Around half of the airlines flying from Heathrow were back online in some form by Sunday, and British Airways has been using a back‑up system since Saturday.