Big round · 21 October 2026

Flapping Airplanes raises $1.0B Series A led by Index Ventures

By Millionrounds ResearchPublished 22 October 2026Updated 26 October 2026

Flapping Airplanes, based in United States, has raised $1.0B in a Series A led by Index Ventures and Lux Capital, announced on 21 October 2026. 11 other investors joined. It is the 47th largest equity round we recorded in the twelve months to that date, and the 3rd largest Series A of 777. The median Series A over the same period was $20M, so this one is 50 times that. Its previous round on record was a seed round of $180M in January 2026, 10 months earlier.

Raised$1.0B10 sources reported it
StageSeries A1 earlier round on record
Investors132 named as lead
Where USUnited States

AIDeveloper Tools

How big is it?

Against every equity round we recorded in the twelve months to 21 October 2026. Ranks count companies, so the same raise reported twice is counted once.

#47equity round of the last twelve months
#3Series A of 777 in that time
#28round in United States, of 1,245
This round$1.0B
Median Series A$20M

50 times the median Series A of the last twelve months.

Who invested

Also in the round

Funding history

  1. October 2026Series A$1.0B
  2. January 2026Seed$180M

$1.2B raised across the 2 rounds we hold.

Reported by

  1. fr.qz.com21 October
  2. Silicon Angle21 October
  3. Leap Ventures21 October
  4. briefia.fr21 October
  5. cadena3.com21 October
  6. newscord.org22 October
  7. Tech Funding News22 October
  8. TechStartups22 October
  9. ambito.com22 October
  10. thedailystar.net22 October

The round's figures come from these reports; each link opens the original.

Other big rounds that week

Kalshi$1.0B Series GPPathos AI$237M Series EWWarhound$200M SeedWWarp Sciences$215M Series AXona$250M Series DTractian$130M Series D
The companyFlapping Airplanes on Millionrounds→Weekly roundupWeek of 19 October→Monthly roundupOctober 2026→