TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Economics
TSA avg check-ins from Sep 21 to 27, 2026?
kalshi

TSA avg check-ins from Sep 21 to 27, 2026?

Volume:
$8,419

Above 2.4 million

 - Kalshi

Above 2.4 million - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 28, 2026

Closed: Sep 27, 11:59 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Above 2.4 million

View
100%
Yes 100¢No 0¢
100¢
N/A
$3,659
N/A
N/A
$2,681
Settled
Yes
kalshi

Above 2.35 million

100%
Yes 100¢No 0¢
100¢
N/A
$1,211
N/A
N/A
$862
Settled
Yes
kalshi

Above 2.45 million

0%
7%
Yes 0¢No 100¢
100¢
N/A
$2,883
N/A
N/A
$1,910
Settled
No
kalshi

Above 2.5 million

0%
Yes 0¢No 100¢
100¢
N/A
$608
N/A
N/A
$608
Settled
No
kalshi

Above 2.55 million

0%
1%
Yes 0¢No 100¢
100¢
N/A
$59
N/A
N/A
$59
Settled
No
kalshi

Above 1.8 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 1.85 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 1.9 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 1.95 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.05 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.1 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.15 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.2 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.25 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.3 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
kalshi

Above 2.6 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
kalshi

Above 2.65 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
kalshi

Above 2.7 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
kalshi

Above 2.75 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
kalshi

Above 2.8 million

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 21

Description

This event tracks the Transportation Security Administration's weekly average airport screenings during a specific week in 2026. It provides a way to assess potential trends in air travel demand by comparing actual screening numbers against various thresholds.

Kalshi

All markets resolve based on whether the Transportation Security Administration reports a weekly average of airport screenings above specified thresholds for the week ending September 27, 2026. Each market has a different threshold, ranging from 1.8 million to 2.8 million screenings. Contracts expire at the earlier of 9:00 AM following data release for that week or one week after September 27, 2026, with a consistent Last Trading Date and Time of 11:59 PM on September 27, 2026. Resolution depends solely on the official TSA-reported average for the specified period.

Frequently asked questions

On Kalshi, the dashboard for the TSA check-in market tracks the current price of contracts, representing predictions about the average number of TSA security check-ins between September 21st and 27th, 2026. You'll find a price history chart to visualize how predictions have changed over time, and the 24-hour trading volume, currently at $2,059, indicating recent market activity. Total volume for this market is $8,419. The dashboard provides a real-time view of where traders stand on the likely outcome for this period.

Comparing prediction market odds to analyst forecasts reveals how collective intelligence differs from expert opinions. For this market, it’s important to consider whether analysts’ predictions align with the current price action on Kalshi. If the market price suggests a significantly different outcome than what analysts are projecting, it could indicate that traders have access to information or insights that haven’t yet been incorporated into traditional forecasts. Discrepancies can arise from differing methodologies or a broader range of factors considered by market participants.

On Kalshi, this market is priced through a continuous double auction, where traders buy and sell contracts representing their beliefs about the average number of TSA check-ins during the specified week. The price of a contract reflects the probability of that outcome occurring. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders are incentivized to provide accurate predictions, as profitable trades are made when their forecasts align with the eventual outcome. The market dynamically adjusts as new information becomes available and traders update their expectations, creating a forward-looking assessment of the event.

This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final average number of TSA security check-ins from September 21st to 27th, 2026, as reported by the Transportation Security Administration (TSA), will determine the outcome. The market will settle based on this official data, representing the actual average daily passenger volume during that period. Traders holding contracts corresponding to the closest predicted average will receive a payout.

Several signals or events could significantly move this market before it resolves. Major shifts in travel patterns, such as large-scale events, economic recessions, or changes in travel restrictions, would likely impact predicted check-in numbers. Unexpected news regarding airline capacity, airport staffing, or security protocols could also influence trading activity. Furthermore, any significant developments related to public health concerns or geopolitical events that affect travel demand could cause the price to fluctuate. Monitoring these factors will be key to understanding the dynamics of this market.