Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
40% | 60% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
40% | 60% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| August 31 | 40% |
| July 31 | 26% |
| July 15 | 16% |
| June 30 | 0% |
Market context
Iran’s airspace remains partially closed following the recent escalation with Israel, even after a US-backed ceasefire was announced, leaving the Tehran FIR in a state of operational constraint rather than full suspension. This ongoing fragmentation frames the current 26% implied probability for a general closure: history shows that while partial shutdowns recur during regional tensions, a blanket suspension affecting all commercial overflights across the entire Tehran FIR has been rare and typically tied to direct, large-scale military strikes rather than sporadic exchanges. Past instances, such as the February 2026 closures across Gulf states after Iran targeted US bases, demonstrate that full airspace shutdowns are episodic and often reversed quickly once diplomatic pressure mounts, suggesting the market may be overweighting the likelihood of a sustained, total closure.
Traders should monitor announcements from the Iranian Civil Aviation Authority and any shifts in US-Israel military posture, as these are the primary catalysts for a general closure. Recent flight tracking data confirms Iranian airspace is currently empty in western sectors, with eastern portions resuming normal operations, indicating that a full closure would require a significant escalation beyond current levels. A key dependency is whether Iran targets US bases again or launches direct strikes on Israeli territory, events that previously triggered regional airspace closures. According to the US Embassy in Iran, commercial travel remains disrupted despite partial reopening, highlighting the fragility of current conditions, but no official indication suggests a move toward total suspension as of early July 2026. The divergence between prediction-market odds and analyst consensus lies in the assumption that current partial closures will escalate to a general one, whereas sportsbook lines on related geopolitical events imply a lower probability of such a dramatic shift.
Methodology
This page reviews Iran full airspace closure by 2026? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
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