all bridges routes

Optimism to Arbitrum Bridge

Bridge USDC, USDT, ETH and other tokens directly from Optimism to Arbitrum — L2-to-L2 in a single non-custodial transaction. Stables dominate the route; the widget pre-fills USDC for the most common transfer.

Optimism to Arbitrum Bridge Now

Optimism to Arbitrum Bridge Now

Optimism to Arbitrum Bridge Now

Optimism to Arbitrum Bridge Now

Optimism to Arbitrum Bridge Now

Optimism to Arbitrum Bridge Now

Proven at scale

Five years of secure cross-chain infrastructure

2021

Live Since

Live Since

2021

50+

Chains

Chains

50+

58 sec

Avg bridge time

Avg bridge time

58 sec

$10B

Total volume

Total volume

$10B

CROSS-CHAIN GUIDE

How to bridge from Optimism to Arbitrum

A real case from September 2026: a user bridged 0.5497 ETH (~$1,466) from Optimism to Arbitrum via Symbiosis, receiving 0.5482 ETH on Arbitrum. Source transaction 0xe5f6…17df, destination on Arbitrum 0x2e71…20d6.

  1. Open the widget — Optimism pre-selected as source, Arbitrum as destination, USDC in and out. Swap to a different token (ETH, USDT, WETH) if needed.

  2. Connect wallet — MetaMask or Rabby. Recipient address on Arbitrum auto-filled from the same wallet.

  3. Review the quote — Symbiosis routing layer shows the exact amount on Arbitrum, flat fee in USD, and ETA.

  4. Approve and confirm — one transaction on Optimism. No second transaction on Arbitrum needed.

  5. Receive on Arbitrum — typical end-to-end delivery via Symbiosis routing layer.

Track on the Symbiosis explorer, and .

Optimism to Arbitrum Bridge — live route in PRO mode: 0.5497 ETH (Optimism) to 0.5482 ETH (Arbitrum One) · Symbiosis

About the Optimism to Arbitrum One route

  • Why this route. Moving ETH from OP Mainnet to Arbitrum One is usually about reaching GMX perpetuals or Pendle's Arbitrum markets. Through the official bridges the ETH would first return to Ethereum, and OP Mainnet withdrawals take 7 days; this route delivers straight to Arbitrum.

  • What you receive. Native ETH on Arbitrum One, the same asset you sent, now usable for gas and deposits there. One transaction, signed while your wallet is on OP Mainnet.

  • Watch out for. Both rollups pay gas in ETH and share your 0x address, so one EVM wallet covers both ends. ETH on OP Mainnet, Base and Ethereum looks the same in many wallets; confirm the source network shows OP Mainnet, chain ID 10, before signing.

  • Speed. Median delivery 16 seconds; 90th percentile 61 seconds, over the 90 days to 25 September 2026.

Related routes: Optimism Bridge, Arbitrum Bridge, Solana to Arbitrum One Bridge, BNB Chain to Arbitrum One Bridge.

ROUTE ESTIMATES

Estimated fees

Approximate fees and swap time based on historical averages, updated 3x/week. Actual values may vary.

Amount

Amount

Amount

Receive

Receive

Receive

Fee + Gas

Fee + Gas

Fee + Gas

Time

Time

Time

0.37 ETH

0.37 ETH

0.3688 ETH

0.3688 ETH

$3.05

$3.05

~16s

~16s

0.93 ETH

0.93 ETH

0.9277 ETH

0.9277 ETH

$5.97

$5.97

~16s

~16s

1.9 ETH

1.9 ETH

1.896 ETH

1.896 ETH

$11.80

$11.80

~16s

~16s

3.7 ETH

3.7 ETH

3.689 ETH

3.689 ETH

$29.10

$29.10

~16s

~16s

Ready to bridge? Live rates across
50+ networks. No signup, no KYC

Ready to bridge? Live rates across 50+ networks.
No signup, no KYC

Start a swap

Start a swap

Start a swap

Start a swap

Start a swap

Start a swap

Crypto coins background — Symbiosis blog

WHY SYMBIOSIS

Secure by design. Proven at scale

Audited in the open

No KYC, no custody, no intermediaries. Audited by Decurity, Zokyo, SlowMist, and Omniscia — 13 public audit reports across 11 protocol modules (Core, MetaRouter v3, Pool, TON Bridge v1+v2, Relayers Network, Staking, Frontend). All reports open-source on GitHub. 4+ years live on mainnet (since March 2022) with zero major security incidents. Active bug bounty program.

Two-layer staking security

Cross-chain transactions routed via Octopools AMM (scans liquidity across DEXs and chains for minimal slippage), then signed by an MPC group via Threshold Signature Scheme (TSS) — no single party can move user funds. Two security layers: Symbiosis PoS Staking (SIS-collateralised relayer nodes) + Symbiotic restaking (additional slash-able collateral). 2/3 stake quorum for epoch changes.

$8B+ across 54 chains

$8B+ total volume bridged across 5M+ transactions from 800K+ unique wallets. Supports 54 networks — more than any other cross-chain bridge (Across 35+, deBridge 30+, Allbridge 20). EVM + non-EVM in one route — Ethereum, Solana, BNB Chain, TON, Tron, Bitcoin, Arbitrum, Polygon, and 46 more. Per-transaction range: $10 to $140,000 — handles retail swaps and whale trades on the same route.

Still have questions?

Contact us and we’ll help you out.

Contact us

Contact us

Contact us

Contact us

Contact us

Contact us

01

How do I bridge from Optimism to Arbitrum?

Open the Symbiosis widget, set source Optimism and destination Arbitrum, pick token in (ETH, USDT, USDC) and connect a wallet. One transaction on Optimism delivers the destination token to your Arbitrum address — median 16 seconds end-to-end as of September 2026.

02

How long does it take to bridge from Optimism to Arbitrum?

Median 16 seconds end-to-end over the last 90 days; 90th percentile 61 seconds, as of September 2026. Both Optimism and Arbitrum have fast finality, so this is one of the quicker cross-chain routes.

03

What is the best Optimism to Arbitrum bridge?

"Best" depends on what you optimise for. By speed Symbiosis delivers a 16-second median (real on-chain data, 90 days, as of September 2026). By cost, on 28 September 2026 bridging 0.37 ETH delivered 0.3688 ETH for a $3.05 fee and 3.7 ETH delivered 3.689 ETH for $29.10, with the full cost in the Symbiosis app plus gas included. By coverage it supports ETH, USDT, USDC and can output any Arbitrum-side token in one transaction — not just same-token bridges.

04

What is the fee to bridge OP to ARB?

On 28 September 2026, bridging 0.37 ETH from Optimism to Arbitrum delivered 0.3688 ETH with a $3.05 fee, and 3.7 ETH delivered 3.689 ETH with a $29.10 fee. The fee covers everything the transfer costs — the full cost in the Symbiosis app plus gas — and the widget shows the exact fee for your amount before you sign.

05

Can I bridge ETH from Optimism to Arbitrum?

Yes — ETH is one of the supported tokens on this route. Native ETH on Optimism becomes native ETH on Arbitrum in one transaction, median 16 seconds as of September 2026. On 28 September 2026, sending 0.93 ETH delivered 0.9277 ETH for a $5.97 fee, which covers the full cost in the Symbiosis app plus gas.

06

What tokens can I bridge from Optimism to Arbitrum?

USDT, ETH and USDC are all supported on this route. Symbiosis also supports converting the source token to a different Arbitrum-side token in the same transaction — e.g. 3,490 USDT on Optimism was converted to USDC on Arbitrum in a real June 2026 transaction.

07

How do I bridge from Arbitrum to Optimism?

Use the same Symbiosis widget but flip source to Arbitrum and destination to Optimism — the reverse route is also live. See the Optimism bridge hub and the Arbitrum bridge hub for aggregate statistics.

08

Is Optimism to Arbitrum cheaper than going through Ethereum?

It skips the mainnet round trip. Going through Ethereum mainnet means a withdrawal from Optimism to Ethereum, which takes about 7 days through the official bridge, and then a separate deposit from Ethereum to Arbitrum, with mainnet gas on the Ethereum transactions. Symbiosis routes Optimism to Arbitrum directly L2-to-L2 in one transaction, median 16 seconds as of September 2026; on 28 September 2026, 0.37 ETH delivered 0.3688 ETH with a $3.05 fee covering the full cost in the Symbiosis app plus gas.

Popular bridges

A few popular bridge routes

Two chains. One click

Bridge Optimism to Arbitrum — USDC, USDT and more, 100% on-chain success. Start now.

Open Arbitrum Bridge

Open Arbitrum Bridge

Open Arbitrum Bridge

Open Arbitrum Bridge

Open Arbitrum Bridge

Open Arbitrum Bridge

Optimism to Arbitrum Bridge — Symbiosis banner background
Optimism to Arbitrum Bridge — Symbiosis banner background

Go deeper into cross-chain

Explore blog

Explore blog

Explore blog

Explore blog

Trending article icon

How to bridge ETH to Arbitrum: fees, speed & routes

Moving ETH onto Arbitrum sounds simple until you hit gas spikes and the 7-day exit. We'll break down how Across protocol and other routes compare, and how to bridge ARB back to ETH when you're ready.

Read article

Read article

Trending article icon

How to bridge ETH to Arbitrum: fees, speed & routes

Moving ETH onto Arbitrum sounds simple until you hit gas spikes and the 7-day exit. We'll break down how Across protocol and other routes compare, and how to bridge ARB back to ETH when you're ready.

Read article

Read article

Quick guide icon

Bridge BNB to Optimism: fees, speed & routes compared

Moving funds from BNB Chain to an Optimism rollup shouldn't take five steps and three wallets. We'll break down what BEP20 to OP transfers really cost and which route lands your tokens fastest.

Read article

Read article

Quick guide icon

Bridge BNB to Optimism: fees, speed & routes compared

Moving funds from BNB Chain to an Optimism rollup shouldn't take five steps and three wallets. We'll break down what BEP20 to OP transfers really cost and which route lands your tokens fastest.

Read article

Read article

Cross-chain swap icon

Best cross-chain bridge: 7 top crypto bridges compared

Bridge fees, speed, and security don't always move together — pick wrong and you overpay or get stuck. We break down which cross chain bridge actually fits your DeFi moves in 2026.

Read article

Read article