Bridge Fee Comparison: All Major Chains & Routes in 2026

Bridge fees vary enormously by route, protocol, transfer size, and time of day. The same $1,000 USDC transfer can cost $1.50 on Arbitrum → Base or $18 on Ethereum mainnet → BNB Smart Chain. This master comparison covers fee ranges for all major chain pairs, the recommended bridge for each route, and a full breakdown of what drives the cost difference. Use it as your reference guide — and then verify with live quotes before every transfer.

Understanding Bridge Fee Components

Before the comparison table, a quick note on what "fee" actually means. Every bridge transfer has multiple cost components:

Bridge protocol fee: The percentage or flat fee charged by the bridge protocol (0.04–0.3% typically)
Source chain gas: Gas to initiate the transaction. This is the dominant cost driver when bridging from Ethereum mainnet ($3–20+). On L2s it is fractions of a cent.
Destination gas: Some bridges include this; others pass it to the user or absorb it
Slippage: For AMM-based bridges, price impact silently reduces received amount — not always shown as a fee

The figures in this article represent total all-in cost including gas, at moderate Ethereum gas prices (~20–30 gwei). Costs from L2 sources are dramatically lower because L2 gas is cheap. For a deep dive on fee mechanics, see our cross-chain bridge fees explained guide.

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

Ethereum ↔ Arbitrum

The highest-volume route in cross-chain DeFi. Deep liquidity on every major bridge.

Bridge	Direction	$1k transfer	$10k transfer	Time
Across Protocol	Both	$2–4	$4–8	~30s
Stargate Finance	Both	$5–9	$9–15	2–5 min
Hop Protocol	Both	$3–6	$8–14 (slippage)	3–8 min
Native Arbitrum Bridge	ETH→ARB	$3–8 (gas only)	$3–8	10–20 min
Native Arbitrum Bridge	ARB→ETH	$0.50 gas	$0.50 gas	7 days

Best choice: Across Protocol for most transfers. Native bridge for ETH→Arbitrum deposits if you are not in a hurry. Never use the native bridge for withdrawals unless you want to wait 7 days.

Full route guide: cheapest way to bridge Ethereum to Arbitrum and bridging from Arbitrum back to Ethereum.

Ethereum ↔ Optimism

Similar to Arbitrum in fee structure and bridge options. Deep liquidity, multiple good options.

Bridge	Direction	$1k transfer	$10k transfer	Time
Across Protocol	Both	$2–4	$4–8	~30s
Stargate Finance	Both	$5–9	$9–14	2–5 min
Hop Protocol	Both	$3–6	$7–13	3–8 min
Native Optimism Bridge	ETH→OP	$3–8	$3–8	10–20 min
Native Optimism Bridge	OP→ETH	$0.50	$0.50	7 days

Best choice: Across Protocol. Full details in our Ethereum to Optimism bridge guide.

Ethereum ↔ Base

Base is Coinbase's OP Stack chain. Launched in 2023, it now has deep liquidity on major bridges.

Bridge	Direction	$1k transfer	$10k transfer	Time
Across Protocol	Both	$2–4	$4–8	~30s
Stargate Finance	Both	$5–8	$8–14	2–5 min
Native Base Bridge	ETH→Base	$3–8	$3–8	10–20 min
Native Base Bridge	Base→ETH	$0.20	$0.20	7 days

Best choice: Across Protocol for speed and cost. Full details in our best Ethereum to Base bridge guide.

Ethereum ↔ Polygon

A popular route for DeFi and NFT users. Multiple bridge options with varying token delivery (native USDC vs. bridged USDC.e).

Bridge	Direction	$1k transfer	$10k transfer	Time
Across Protocol	Both	$3–5	$5–10	1–3 min
Stargate Finance	Both	$5–10	$9–16	3–7 min
Hop Protocol	Both	$3–7	$8–15	5–10 min
Native Polygon Bridge (PoS)	ETH→POL	$3–8	$3–8	~30 min (PoS checkpoint)
Native Polygon Bridge (PoS)	POL→ETH	~$1	~$1	~3 hours (PoS exit)

Best choice: Across Protocol or Stargate. Note that Polygon PoS's native bridge is actually reasonably fast for withdrawals (3 hours vs. 7 days for OP chains). Full guide: cheapest Ethereum to Polygon bridge in 2026 and how to bridge USDC from Ethereum to Polygon.

Ethereum ↔ BNB Smart Chain

The BSC route has fewer quality bridge options than the OP/Arbitrum routes. Fewer intent-based bridges support it natively.

Bridge	Direction	$1k transfer	$10k transfer	Time
Stargate Finance	Both	$6–12	$12–20	3–8 min
Synapse Protocol	Both	$5–10	$10–18	5–15 min
cBridge (Celer)	Both	$5–9	$9–16	3–10 min
Allbridge	Both	$4–8	$8–14	5–15 min

Best choice: Stargate Finance for large amounts. Synapse for mid-size. Always verify with live quotes. Full guide: Ethereum to BSC bridge in 2026.

Arbitrum ↔ Optimism

L2-to-L2 transfers. Source gas costs are extremely low since both chains have cheap gas. The total cost is dominated by bridge protocol fees.

Bridge	$1k transfer	$10k transfer	Time
Across Protocol	$0.50–1.50	$1.50–4	~30s
Hop Protocol	$0.50–2	$2–6	3–8 min
Stargate Finance	$1–3	$3–6	2–5 min

Best choice: Across Protocol. L2-to-L2 transfers are the cheapest in all of cross-chain DeFi.

Arbitrum ↔ Base

Both chains have cheap gas, making this one of the lowest-cost routes available.

Bridge	$1k transfer	$10k transfer	Time
Across Protocol	$0.30–1.50	$1–3	~30s
Stargate Finance	$1–2.50	$2.50–5	2–5 min

Best choice: Across Protocol.

Polygon ↔ Arbitrum

Fewer direct bridge options; multi-hop via Ethereum is sometimes cheaper for large amounts.

Bridge	$1k transfer	$10k transfer	Time
Across Protocol	$1–3	$2–5	2–5 min
Stargate Finance	$2–5	$4–9	3–8 min
Synapse Protocol	$2–5	$5–10	5–15 min

Best choice: Across Protocol. Full guide: Polygon to Arbitrum bridge guide.

Optimism ↔ Base

Two OP Stack chains. Future Superchain upgrades will make this route near-free. For now:

Bridge	$1k transfer	$10k transfer	Time
Across Protocol	$0.30–1.50	$1–3	~30s
Stargate Finance	$1–2.50	$2–5	2–5 min

Token-Specific Guides

Bridge costs and best options also vary by token, not just chain. Some tokens have much thinner liquidity on certain bridges, leading to slippage. See our token-specific guides:

Why These Numbers Change — and Why You Need Live Quotes

Every figure in this article is a range based on observed data. Bridge fees change because:

Ethereum gas prices fluctuate 3–10x between calm and busy periods. Mainnet gas is the largest variable in any ETH-origin transfer.
Bridge protocol fees are not fixed. Protocols adjust fee tiers based on liquidity, competition, and governance votes.
Liquidity shifts. Bridge LP capital moves between chains based on yield opportunities. A bridge that has deep liquidity today may have shallow liquidity (and high slippage) next week.
New protocols launch. Better options emerge regularly.

This is why static fee tables — including this one — cannot substitute for live comparison. The right workflow is: use this article as a starting guide for what to expect, then verify with live quotes on BridgeFees.com immediately before every transfer.

Protocol-by-Protocol Reviews

For deep dives on each bridge protocol mentioned in this comparison:

Tips to Reduce Bridge Fees Across All Routes

Beyond choosing the right bridge, there are several strategies that apply regardless of route. The most impactful are covered in our 10 tips to save money on bridge fees. Key actions:

Bridge from L2 sources instead of Ethereum mainnet whenever possible
Time Ethereum mainnet transfers for low-gas windows (weekends UTC)
Batch small transfers into one larger transfer
Use intent-based bridges for large transfers to avoid slippage (see our bridge slippage explainer)
Check multi-hop routes when direct liquidity is thin (see our multi-hop routes guide)

Frequently Asked Questions

Which chain pair has the lowest bridge fees in 2026?

L2-to-L2 routes between well-supported chains are the cheapest. Arbitrum → Base via Across Protocol can be under $0.50 for a $1,000 USDC transfer. Routes involving Ethereum mainnet are significantly more expensive due to mainnet gas costs.

Why is bridging from Ethereum mainnet so expensive?

The source chain gas fee is paid in ETH at Ethereum mainnet rates, which are 50–1,000x higher than L2 gas fees. Even if the bridge charges zero protocol fee, you still pay $3–20+ in gas to initiate the transaction on mainnet. Bridging from an L2 source cuts this component to near-zero.

Does BridgeFees.com cover all the routes in this article?

Yes. BridgeFees.com compares 10+ bridge providers for all major EVM route combinations including all the chain pairs listed above. It automatically finds the cheapest option including multi-hop routes, and shows the estimated received amount (accounting for slippage) rather than just the headline fee.

Are bridge fees deductible as transaction costs in crypto accounting?

In most jurisdictions, bridge fees are treated as a cost basis adjustment or transaction expense for tax purposes. Consult a crypto-specialized accountant for your specific situation — tax treatment varies significantly by country.

What is the cheapest way to bridge large amounts ($50,000+)?

For very large amounts, Stargate Finance typically offers the best combination of deep liquidity (minimal slippage), native asset delivery, and competitive protocol fees. Across Protocol is also competitive at this size on major EVM routes. Consider splitting very large transfers ($100k+) across two protocols to reduce single-protocol counterparty risk. Always compare live quotes and see our bridge security guide for risk considerations.

How often do bridge fees change?

Continuously. Ethereum gas prices move every block. Protocol fee rates change monthly via governance. Liquidity depth shifts daily. The table in this article reflects 2026 averages at moderate gas — your actual quote will differ. BridgeFees.com is updated in real-time and is always more accurate than any static table.