One-flow bridge swaps combine two cross-chain steps

A one-flow bridge swap combines a cross-chain transfer and a token exchange into a single route, so the destination wallet receives the asset you chose. The interface coordinates steps that would otherwise require a bridge and a separate swap; the route and quote determine what happens behind the scenes.

• Input: the token and amount on the source chain.
• Output: the token and estimated amount on the destination chain.
• Cost: network gas, bridge or solver fees, and swap price impact.

The route may use liquidity on one or both chains, and the displayed estimate can change before execution. For background on choosing a path, see how Acrossbridge routes are chosen. The useful comparison is the amount expected in your wallet after costs, not just the quoted bridge fee.

How does a one-flow bridge swap work?

You select a source chain, input token, destination chain and output token. A routing system finds a path that can move value across chains and deliver the requested asset, often by combining bridging, relaying and a swap.

“One flow” describes the user experience, not necessarily one transaction or one on-chain action. A wallet may still ask for token approval and then a separate signature to submit the transfer. After that, the destination step depends on the route completing.

What should you compare before signing?

Compare the estimated amount received and the conditions attached to it. A low headline fee can still produce a worse result if the swap has high price impact or the route requires costly gas.

• Check the destination network and token contract, especially for similarly named assets.
• Review the minimum output or slippage setting; a tighter limit can cause a transaction to fail if the market moves.
• Make sure you will have the destination chain’s gas token for any later activity.

These checks matter because the route moves value through multiple systems, each with its own liquidity and execution conditions. The interface can simplify the steps, but it cannot remove those trade-offs.

What is confirmed, and what remains open?

Confirmed at signing is the transaction you authorize on the source chain and the route’s quoted terms. The final amount and completion time remain open until the route executes; network congestion, available liquidity and price movement can affect the result.

For most users, a one-flow route is useful when the goal is a specific destination asset and the quote is clear. If you cannot see the expected output, fees or failure conditions, pause and inspect the route before signing.