Polygon to Arbitrum Bridge: Cheapest Routes & Fees Compared (2026)

Bridging from Polygon to Arbitrum is trickier than it looks. Unlike the well-worn Ethereum–Arbitrum corridor, there is no single dominant route: you can go direct via Stargate, or route through Ethereum mainnet as a relay hub. The cheapest option depends on the amount you are moving, current gas prices, and available liquidity. This guide breaks down how both paths charge fees in 2026 and what the official docs say about timing.

Why Polygon–Arbitrum is Complicated

Both Polygon PoS and Arbitrum One are Layer 2 / sidechain networks, but they are architecturally different and share no native messaging layer. Ethereum mainnet is the only chain where the two can settle trustlessly. This creates two classes of route:

• Direct bridging: protocols like Stargate Finance maintain liquidity pools on both Polygon and Arbitrum and swap tokens directly without touching Ethereum mainnet.
• Multi-hop via Ethereum: your assets first cross from Polygon to Ethereum (or another hub), then continue to Arbitrum. Two hops, two sets of gas fees, but sometimes cheaper total due to deep Ethereum-side liquidity.

Neither approach is universally better — the winner rotates based on liquidity depth and gas conditions. Learn more in our multi-hop bridge routes explainer.

Direct Route: Stargate Finance

Stargate Finance is the most mature protocol for direct Polygon–Arbitrum transfers. It uses unified liquidity pools (Delta algorithm) to move USDC, USDT, and ETH from Polygon to Arbitrum directly between chains without wrapping.

• Fee structure (per Stargate docs): V2 charges a dynamic fee per route (sometimes a rebate); V1 pools charge a flat 0.06%; plus a LayerZero messaging fee paid in source-chain native gas
• Transfer time: not published in the Stargate docs — check the estimate in a live quote
• Supported tokens: USDC, USDT, ETH, WETH
• Best for: direct stablecoin transfers that avoid a second transaction through Ethereum mainnet

Stargate’s weakness is that liquidity can be thin for less common pairs. Before committing to a large Stargate transfer, check the pool depth on DeFiLlama and compare the received amount in a live quote.

Multi-Hop Route: Polygon → Ethereum → Arbitrum

The multi-hop approach routes assets through Ethereum mainnet. This sounds expensive, but there are scenarios where it wins:

1. Ethereum gas is unusually low, which can make the two-hop total competitive with a direct route on small amounts.
2. You are bridging a token that Stargate does not support directly — you may need to move USDC from Polygon to Ethereum via the canonical bridge first, then use Arbitrum’s native bridge for the second leg.
3. You want to avoid pool price impact on the second hop, because native Arbitrum deposits from Ethereum do not depend on a liquidity pool.

The main cost driver is Ethereum mainnet gas on the second hop (the Ethereum to Arbitrum USDC leg). Ethereum gas varies with network congestion, and the busier Ethereum is, the more expensive the two-hop route becomes. See our cheapest Ethereum to Arbitrum guide for that leg’s cost breakdown.

Fee Structure Comparison (2026)

For a 500 USDC transfer from Polygon to Arbitrum, this is how each route charges. The live total depends on gas and the quote at the time:

• Stargate (direct): V2 dynamic fee per route + LayerZero messaging fee in source-chain native gas · no Ethereum exposure
• LI.FI aggregated route: 0.25% LI.FI service fee per transaction, plus the fees of the bridge or DEX used and gas (LI.FI docs) · auto-selects best path · may use multi-hop internally
• Manual two-hop (Polygon→ETH→Arbitrum): two transactions, each with its own fees and gas, including Ethereum gas on the Ethereum leg · most attractive when Ethereum gas is low
• Centralized exchange round-trip: deposit, trading and withdrawal fees set by the exchange · requires KYC

Percentage-based fees (such as the 0.25% LI.FI service fee) scale with the transfer size, while gas is charged per transaction, so the cheapest route can change as the amount grows. Compare live quotes at your actual size.

→ Compare real-time Polygon to Arbitrum bridge fees on BridgeFees.com — no wallet needed

Timing Your Transfer

The timing lever that matters is Ethereum gas, which affects multi-hop routes and any bridge that settles on Ethereum mainnet for security.

• For multi-hop routes, Ethereum gas on the Ethereum leg varies with network congestion, so check a live gas tracker before sending.
• Direct Stargate routes do not use Ethereum mainnet, so Ethereum gas timing matters less for them.

For more timing tips, see our best time to bridge crypto guide.

What About MATIC / POL?

Most bridges do not support MATIC (now rebranded POL) as a bridgeable asset from Polygon to Arbitrum. Your practical options are:

1. Swap MATIC for USDC on Polygon (via QuickSwap or Uniswap), then bridge USDC.
2. Use a centralized exchange: deposit MATIC on Polygon network, trade for USDC or ETH, withdraw to Arbitrum.
3. Some aggregators (LI.FI, Socket) include a DEX swap in the bridge route, swapping MATIC on Polygon and delivering USDC on Arbitrum in one transaction.

Option 3 is the most convenient. BridgeFees.com surfaces these swap+bridge routes when you enter MATIC as the source token.

Security Considerations

Polygon PoS uses a PoS checkpoint system that is different from Arbitrum’s fraud proof security model. When comparing bridges, consider:

• Stargate: uses LayerZero messaging — an external oracle/relayer network. Reputable and widely audited, but different trust assumptions than a rollup’s native bridge.
• Native bridges (Polygon→Ethereum, then Arbitrum’s official bridge): highest security, with waiting built into each leg. A Polygon PoS withdrawal is included in a checkpoint committed to Ethereum roughly every 30 minutes, then needs an exit transaction on Ethereum (Polygon docs); in the other direction, Arbitrum withdrawals to Ethereum take at least seven days (Arbitrum docs).
• For amounts over $50,000, we recommend reading our bridge security guide before choosing a route.

Step-by-Step: Cheapest Polygon to Arbitrum Transfer

1. Go to BridgeFees.com, select Polygon as source and Arbitrum as destination.
2. Enter your token and amount. The tool will show both direct and multi-hop routes with total cost estimates.
3. If Stargate shows the best received amount for your transfer, use it. Navigate to stargate.finance/transfer directly (never via Google ads).
4. If an aggregator like LI.FI shows a cheaper route, verify the route details — sometimes it routes via Ethereum and the displayed fee includes Ethereum gas accurately.
5. For larger amounts, confirm pool liquidity on DeFiLlama before executing.
6. Send a small test amount first if you are new to the route.

Related Guides

If you are bridging the other direction or to different chains, these guides cover adjacent routes:

• Cheapest Ethereum to Polygon bridge routes
• Bridging back from Arbitrum to Ethereum
• Stargate vs Hop vs Across protocol comparison
• How cross-chain bridge fees are calculated

Frequently Asked Questions

Is there a direct bridge from Polygon to Arbitrum?

Yes. Stargate Finance supports direct USDC, USDT, and ETH transfers from Polygon to Arbitrum without routing through Ethereum mainnet. It is the most popular direct option in 2026 for stablecoins.

How much does it cost to bridge from Polygon to Arbitrum?

The total depends on the route and on gas at the time. A direct Stargate route pays Stargate's fee (V2: a dynamic fee per route, sometimes a rebate; V1 pools: a flat 0.06%) plus a LayerZero messaging fee paid in source-chain native gas. A multi-hop route via Ethereum adds Ethereum gas for the Ethereum leg on top of each bridge's own fees. Compare live quotes for your amount before sending.

How long does a Polygon to Arbitrum bridge take?

Stargate does not publish a transfer time in its docs, so check the estimate in a live quote. A multi-hop route via Ethereum involves two separate transactions. On the native path, a Polygon PoS withdrawal is included in a checkpoint committed to Ethereum roughly every 30 minutes and then needs an exit transaction on Ethereum, and Ethereum to Arbitrum deposits arrive within roughly 15–30 minutes depending on chain congestion, according to the Polygon and Arbitrum docs.

Can I bridge MATIC from Polygon to Arbitrum?

Most bridges do not support MATIC directly. The practical workaround is to swap MATIC for USDC on Polygon first, then bridge USDC. Some aggregator routes can do this in a single transaction.

Which is safer: Stargate direct or the two-hop native route?

The two-hop native route (Polygon canonical bridge + Arbitrum native bridge) has the highest security guarantees, as both legs are secured by their respective blockchain protocols. Stargate’s LayerZero messaging is reputable and widely audited but adds a small amount of additional trust surface area.

Does BridgeFees.com show multi-hop routes?

Yes. BridgeFees.com automatically surfaces multi-hop routes when they are cheaper than direct options. You can see the full route breakdown — including intermediate chains and gas costs for each leg — before you execute anything. No wallet connection required.