How to Bridge to Blast: Fastest and Cheapest Options in 2025

In crypto, idle capital is wasted capital. Blast is the first Ethereum Layer 2 built to change that equation, enabling you to turn your ETH and stablecoins into yield-generating assets just by holding them on the network.

Think of it as an always-on yield layer. Passive income is woven directly into the chain’s architecture.

This fundamentally shifts how users deploy and move assets across DeFi. And because yield on Blast is distributed through daily rebases, timing and efficiency matter more than ever when bridging assets to the network.

In this guide, we’ll break down how Blast works, what sets it apart, and how Across gives you the fastest path to putting your assets to work.

Blast is an Ethereum Layer 2 designed to give DeFi users something radically new: native yield.

Unlike traditional L2s, which focus primarily on scalability, Blast automatically generates yield on both ETH and stablecoins the moment assets are bridged onto the network. There’s no need to deposit into a lending protocol or seek out a DeFi farm. Your assets earn yield passively by default.

Here’s how it works:

This architecture makes Blast the first L2 to integrate yield at the protocol level. It transforms idle assets into productive ones without compromising usability, composability, or security.

Under the hood, Blast uses optimistic rollup technology to inherit Ethereum’s security while reducing fees. That means users get all the benefits of any other Optimistic L2 with the added upside of built-in returns on capital.

Blast is one of the most ambitious EVM L2s. Within weeks of its mainnet going live, Blast attracted over $2.3 billion in Total Value Locked (TVL) (now down to ~$120 million) and has surged past 2.7 million unique addresses to date on the tail of one of the most talked-about airdrop campaigns in recent memory.

But Blast isn’t just growing fast. As the only Ethereum L2 with native yield, Blast blends ecosystem incentives and early-mover rewards into a single, unified experience. The network is also backed by a long-term roadmap and aggressive incentive design. 

In 2024, Blast completed its first airdrop, distributing 17 billion BLAST tokens to early users and builders via the now-retired Blast Points and Blast Gold systems. Phase 2 introduced a transition away from abstract point systems and toward real-time liquid $BLAST rewards. Users now earn BLAST directly by bridging assets, engaging with dApps, and participating in the growing mobile ecosystem.

In total, 10 billion BLAST are being distributed in Phase 2, with reward programs running through June 2025. If you missed Phase 1, there’s still time to earn. But dilution increases as participation grows.

If you choose to bridge, here’s what you can expect from the Blast ecosystem:

DeFi & Yield Maximization

Blast is redefining capital efficiency with native yield built into the protocol. ETH and stablecoins earn automatically via daily rebases the moment they land on the network. DeFi protocols like Thruster (DEX), Juice (leveraged yield farming), and Ring Protocol (liquidity aggregation) are powering a new wave of composable yield strategies, amplified by ecosystem incentives and Phase 2 rewards.

Social, Gaming, and NFTs

Blast’s mobile-first design is fueling the growth of social and gamified experiences like Fantasy, a social NFT trading game, and Particle, a leveraged trading protocol that brings an interactive twist to DeFi. Many of these dApps are being incubated through Blast’s Big Bang competition, which funds builders and rewards early users for participation and discovery.

Mobile Ecosystem Growth

With an emphasis on mobile-native UX, the Blast App acts as both a wallet and dApp browser designed to surface curated apps to simplify onboarding. Big Bang-funded projects continue to launch regularly, backed by Blast’s full-stack vision for adoption.

Cost-Efficient Infrastructure

Blast combines the low fees of an Optimistic Rollup with a vertically integrated ecosystem inspired by Apple. From protocol to wallet to incentives, every layer is built to work seamlessly, offering users a frictionless, yield-by-default experience.

The Blast Bridge is the official entry point for moving assets from Ethereum to the Blast network. Built by the Blast team, it supports direct ETH deposits from Ethereum, enabling users to onboard smoothly and begin earning native yield via daily rebases as soon as funds arrive.

However, if you're depositing from other chains (like Arbitrum, Optimism, or Polygon) the Blast Bridge portal will redirect you to the Across interface to handle multichain transfers.

Note: Withdrawals back to Ethereum can take ~14 days to complete.

Here’s an example of what you can expect from the Blast Bridge:

If you need faster transactions, lower costs, and more chain options, Across is the most efficient way to bridge to and from Blast.

Across uses an Intents-based bridging architecture secured by UMA’s optimistic oracle (OO). Liquidity providers front the transfer, allowing you to receive your funds on the destination chain almost instantly while final settlement occurs asynchronously on Ethereum.

If you're curious about how it works under the hood, we’ve written extensively about crosschain interoperability and the role of Intents. The short version: Across delivers secure, cost-efficient finalization without compromising on speed.

Bridging to and from Blast with Across is the more efficient move because:

Since Blast uses Across to power their native bridge, you already get all these benefits when bridging natively. However, by bridging straight from the Across UI, you get direct access to every supported chain and token.

Across is the most efficient bridge to Blast, and the best part is that using Across is incredibly intuitive and user-friendly. Here’s a step-by-step guide:

Step 1: Visit app.across.to

To bridge from Ethereum mainnet (or any supported L2) to Blast, start by visiting the Across app and connecting your wallet.

Step 2: Select Your Chains

Next, choose your origin (from) and destination (to) chains. For this example, we’ll bridge from Optimism to Blast. Here, you’ll also specify how much ETH you want to bridge, which will prompt Across to estimate the time and fees based on current network conditions.

Note: This process is the same if you’re bridging from Blast back to mainnet. Just reverse the origin and destination chains. 

Once you’ve specified the amount of ETH you'd like to bridge and have looked over the fee details, click on “confirm transaction”, and your coins will be on their way. Transactions are completed in seconds, so you’ll receive your assets on Blast almost instantly.

Blast is redefining the way users onboard to Ethereum L2s. More than just a scaling solution, it’s a mobile-first, yield-driven ecosystem where your assets start earning the moment you bridge in.

With native yield on ETH and stablecoins, real-time BLAST rewards, and ecosystem incentives designed for early adopters, Blast makes every onchain action more rewarding by default.

Bridging is the first step to tapping into this momentum. It unlocks access to composable DeFi, consumer apps, and low-friction rewards while your capital earns yield passively.

For direct Ethereum transfers, the official Blast Bridge offers a secure option. But for users seeking faster bridging, lower fees, security, and support for networks like Arbitrum, Base, or Optimism, Across is the best way to bridge to Blast. As the official L2-to-L2 bridge for Blast, Across ensures seamless access from any supported chain.

Try Across today and experience the best Blast bridging solution firsthand.

For more information on Blast, bridging, and crosschain transfers, check out these resources:

If you're new to bridging, check out these guides:

How do you bridge from Blast back to ETH?

To move assets from Blast to Ethereum, you can use either:

Can assets be moved back from Blast to Ethereum?

Yes. Assets bridged to Blast can be returned to Ethereum using the official Blast Bridge or third-party options like Across.

The Blast Bridge prioritizes L1 security and finality, while Across focuses on speed and capital efficiency.

How do I use the Blast Bridge to transfer tokens?

Visit blast.io/bridge, connect your wallet, select the token (ETH, WETH, or USDB), enter the amount, and confirm the transaction.

Your assets will be routed from Ethereum to Blast and begin earning yield automatically upon arrival.

How long does bridging take?

What are the costs?

Bridging costs vary depending on method and current network conditions:

Is bridging secure?

Yes, but each option uses a different trust model:

Both are secure, but Across prioritizes execution speed, while Blast Bridge prioritizes L1-level trust assumptions.