Bridge fees are not a single number. Every cross-chain transfer pays two things at once: a destination-chain gas reimbursement (paid to the relayer or LP that submits your transaction on the other side) and a protocol fee (paid to the bridge for liquidity, security, or messaging). The mix varies wildly. On a $500 USDC Base to Arbitrum hop, Across charges roughly $0.30 all-in while a lock-mint route through a generic messaging bridge can run $3 to $6 for the same value. On $5,000 the gap widens because most protocol fees scale linearly while gas stays flat.
This guide benchmarks ten widely used bridges on the same Base to Arbitrum USDC route at two notional sizes, then breaks out gas versus protocol-fee components and final settlement time. All numbers were sampled in May 2026 from each bridge's official quote API or front-end and cross-referenced against DeFiLlama bridge-volume rankings. Use it as a starting point, not a quote: fees move with destination gas prices, LP utilization, and route congestion.
How bridge fees actually break down
Every bridge fee has two components. The gas component pays for the destination-chain transaction (the mint, release, or message execution). The protocol component pays the bridge itself: LP rewards on intent bridges like Across, pool fees on liquidity bridges like Stargate, or per-byte messaging fees on generalized bridges like LayerZero and Hyperlane.
Bridge fee comparison: $500 and $5,000 USDC, Base to Arbitrum
Same route, same token, same week. Quotes pulled from each bridge's production UI or API on May 18, 2026. Gas component is the destination L2 execution cost; protocol component is everything else (LP fee, messaging fee, relayer tip).
Bridge | $500 fee | $500 % | $5,000 fee | $5,000 % | Gas component | Protocol component | Finality |
Across | $0.31 | 0.06% | $1.65 | 0.033% | $0.18 | $0.13 to $1.47 | 2 to 15s |
Stargate | $0.62 | 0.12% | $3.20 | 0.064% | $0.22 | $0.40 to $2.98 | 30 to 90s |
LayerZero (OFT) | $0.45 | 0.09% | $0.55 | 0.011% | $0.30 | $0.15 to $0.25 | 30 to 60s |
Hop | $1.10 | 0.22% | $5.40 | 0.108% | $0.20 | $0.90 to $5.20 | 5 to 20m |
Connext (Chain Abstraction) | $0.85 | 0.17% | $3.95 | 0.079% | $0.25 | $0.60 to $3.70 | 2 to 6m |
Synapse | $1.40 | 0.28% | $6.80 | 0.136% | $0.22 | $1.18 to $6.58 | 1 to 5m |
Hyperlane Warp | $0.38 | 0.08% | $0.48 | 0.010% | $0.28 | $0.10 to $0.20 | 20 to 60s |
CCTP (Circle) | $0.24 | 0.05% | $0.26 | 0.005% | $0.24 | $0.00 to $0.02 | 13 to 19m |
deBridge | $0.55 | 0.11% | $2.10 | 0.042% | $0.20 | $0.35 to $1.90 | 20 to 60s |
LI.FI (aggregator) | $0.31 to $1.40 | 0.06 to 0.28% | $1.65 to $6.80 | 0.033 to 0.136% | varies | routes through best of above | varies |
Two patterns jump out. First, CCTP, LayerZero OFT, and Hyperlane Warp barely scale with notional because their protocol fee is fixed messaging cost, not a percentage of value. Move $50,000 and you still pay roughly the same $0.25 to $0.50. Second, liquidity-pool bridges (Stargate, Hop, Synapse, Connext) charge a percentage that does scale, so they win on small transfers but lose on large ones unless they offer specific size discounts.
Across: intent-based, fastest soft finality
Across uses an intent model. You deposit on the origin chain, a relayer fills you on the destination in seconds, then settles back through UMA's optimistic oracle. Fees are quoted upfront and include the relayer's risk premium plus destination gas. On $500 Base to Arbitrum, Across is consistently the cheapest non-Circle option, and the 2 to 15 second fill is the fastest soft finality in the table. Source: docs.across.to/concepts/fee-model.
Stargate: unified liquidity, predictable but pricier
Stargate runs single-sided pools on every supported chain, settled through LayerZero messaging. The 1 to 6 bps pool fee plus the LayerZero gas-on-destination quote produces the numbers above. Strength: native asset out (real USDC, not a wrapped derivative). Trade-off: pool fees scale linearly, so large transfers add up. Source: stargateprotocol.gitbook.io/stargate/v/v2-developer-docs.
LayerZero OFT: cheap at scale, requires OFT-compliant token
LayerZero's Omnichain Fungible Token standard burns on origin and mints on destination through LayerZero messaging. Only the messaging fee plus destination gas, no liquidity premium. For USDC specifically you need a USDC.e OFT deployment or you route through Stargate's USDC pool. Where OFT exists, it is one of the cheapest options above $1,000. Source: docs.layerzero.network/v2/home/token-standards/oft-standard.
Hop: optimistic L2 to L2, slower exits
Hop uses bonders who front liquidity on the destination, then reconcile through the L1 within the rollup challenge window. Fast within Hop's mesh but the fee includes the bonder's capital cost. Pricier than Across on most sizes. Source: docs.hop.exchange.
Connext: chain abstraction with xCalls
Connext rebranded around chain abstraction in 2024 and now powers xERC20 and xCall flows. Routers post liquidity and earn fees per route. Finality is in the minutes for canonical assets. Source: docs.connext.network.
Synapse: oldest liquidity bridge, widest stablecoin support
Synapse runs Curve-style stableswap pools across chains. Highest fees in this comparison but the broadest list of supported stables and chains, including some long-tail destinations the others skip. Source: docs.synapseprotocol.com.
Hyperlane Warp: permissionless deployment, low protocol fee
Hyperlane lets any team deploy a Warp Route between chains they choose, with their own ISM security model. Protocol fee is just the messaging cost, so quotes look similar to LayerZero OFT. Hyperlane is a current Eco infrastructure partner. Source: docs.hyperlane.xyz/docs/protocol/warp-routes.
CCTP: native USDC burn and mint from Circle
CCTP burns USDC on the source chain and mints native USDC on the destination using Circle's attestation service. No liquidity premium, no wrapped tokens, just the destination mint gas. The catch is the 13 to 19 minute Ethereum hard-finality wait on V1 routes; CCTP V2 Fast Transfers cut this to under 30 seconds on supported lanes but add a small fast-finality fee. CCTP is the transport layer behind many of the other bridges' USDC routes. Source: developers.circle.com/stablecoins/docs/cctp-getting-started.
deBridge: intent-based with DLN solver network
deBridge's DLN (deBridge Liquidity Network) uses a solver auction similar to Across, with native asset out on the destination. Fees are competitive with Across on most routes, slightly higher on some long-tail destinations. Source: docs.debridge.finance/dln-the-debridge-liquidity-network-protocol.
LI.FI: aggregator that routes through the others
LI.FI does not move funds itself. It quotes across the above bridges plus several DEX aggregators and picks the best route per request. Add a small (typically 5 to 15 bps) integrator fee on top of whichever underlying bridge gets selected. Useful if you do not want to pick a route manually. Source: docs.li.fi.
Which bridge is cheapest for your transfer size?
For transfers under $1,000, the percentage-scaling bridges (Across, Stargate, deBridge) usually beat the fixed-fee bridges because the destination gas dominates either way. For $5,000 and up, CCTP, LayerZero OFT, and Hyperlane Warp pull ahead because their protocol fee barely moves. For very large transfers (>$100,000), CCTP is almost always cheapest if you can tolerate the 13 to 19 minute V1 finality.
What you actually pay beyond the headline fee
Two costs do not show up in any bridge UI. First, slippage on liquidity-pool bridges (Stargate, Synapse, Hop) when you bridge large amounts relative to the destination pool; check pool TVL on DeFiLlama before sending. Second, the spread between the bridge's quoted USDC and the price you actually receive when the destination is paid in a wrapped variant (USDC.e versus native USDC). Always confirm the output token contract address matches what you expect.
Methodology and sources
Fee quotes pulled May 18, 2026 from each bridge's production UI or quote API on the Base to Arbitrum USDC route at $500 and $5,000 notional. Gas component derived from the destination chain's gas price at quote time multiplied by typical execution gas for that bridge's settlement contract. Bridge volume rankings cross-referenced against DeFiLlama (defillama.com/bridges). Individual bridge documentation linked inline. Numbers will move; treat as directional, not contractual.