How Long Does the Polygon Bridge to Ethereum Take?
Bridging assets from Polygon to Ethereum takes approximately 22 minutes via the official Polygon Bridge. This is significantly longer than a standard on-chain Polygon transaction due to the cross-chain checkpoint validation process.
Polygon Bridge Transfer Times
| Bridge Direction | Time | Bridge Type |
|---|---|---|
| Ethereum → Polygon | ~22 minutes | Polygon PoS Bridge |
| Polygon → Ethereum | ~22 minutes | Polygon PoS Bridge |
| Polygon → Ethereum (old) | Up to 7 days | Plasma Bridge |
| Using Hop Protocol | ~22 minutes | Third-party bridge |
Why Does the Polygon Bridge Take 22 Minutes?
The 22-minute bridge time exists because Polygon checkpoints transaction data to the Ethereum mainnet periodically. The system waits for sufficient Polygon blocks to be finalized before writing a checkpoint to Ethereum, which takes approximately 22 minutes. This is a security feature that ensures cross-chain transfers are final and irreversible.
What Is the Plasma Bridge?
The older Plasma Bridge used a different withdrawal mechanism that required a 7-day challenge period. During this window, anyone could dispute the validity of the withdrawal. Most users now use the PoS Bridge, which does not have this 7-day requirement and settles in ~22 minutes instead.
How to Track Your Bridge Transaction
- Go to Polygonscan.com and paste your transaction hash
- Look for the “Bridge Transfer” status in the transaction details
- Once the checkpoint is submitted to Ethereum, the transfer completes
- Check Etherscan.io to confirm receipt on the Ethereum side
Depositing from Ethereum to Polygon takes approximately 22 minutes via the Polygon bridge. This is because Hop itself uses the native bridges for L1→L2 deposits.
Faster Bridge Alternatives
Third-party bridges like Hop Exchange or Across Protocol offer faster bridging in some cases by using liquidity pools, though they typically charge slightly higher fees. For most users, the official Polygon Bridge at 22 minutes is the simplest and most reliable option.