Best Time to Book

Houston → Las Vegas flights

Median fare is $40 for IAH–LAS; most days sit in the high-$30s to high-$40s, so book once you see a quote near the median.

Houston–Vegas fares cluster near $40, with rare $72 spikes

Key takeaways

Median fare of $40 anchors this route as a low-cost hop most of the time
Bottom quartile sits at just $38, barely below the median — the real bargains aren't much cheaper than typical pricing
Top quartile reaches $49, with an outlier high of $72 showing occasional spikes
89% spread looks large, but it's driven by one high outlier rather than consistent volatility
Based on only 12 snapshots, so treat patterns as directional, not definitive

30-day price trend

IAH → LAS · cheapest cached fare per day · last 13 days · ↑ 23%

$38 low$72 high

See full numbers and stats on the IAH → LAS price history page.

The full picture

The data shows a route that's cheap by default: a $40 median with a tight $38–$49 range covering the middle 50% of fares. That's a narrow band in dollar terms, even though the 89% spread percentage sounds dramatic — it's mostly explained by a single $72 high rather than fares bouncing around unpredictably. For a budget-conscious traveler, this means most days you check, you'll see something close to $40, and paying much more than $49 would be the exception rather than the norm.

With only 12 snapshots, we can't responsibly map out a precise booking curve across weeks or months. What we can say is that the bulk of observed fares cluster tightly near the low end, suggesting this route doesn't carry the steep last-minute markups seen on less competitive corridors. If you spot a fare in the high $30s to low $40s, that's consistent with the median and a reasonable time to book rather than wait for a theoretical better deal.

We don't have enough snapshots to identify day-of-week effects or a dominant carrier pattern here, so we won't speculate on either. The honest takeaway: this is a low-volatility, low-cost route most of the time, with one outlier reminding you that occasional $70+ fares do happen. Given the thin sample size, treat the $40 median as a useful target price rather than a guarantee, and avoid overanalyzing the spread percentage — in dollar terms, the range is modest.

Ready to look at fares?

Search IAH → LAS on Aviasales →See the price history →

Related travel pages

Why we regenerated this article: Top quartile ↑ 23% ($40 → $49). We only rewrite when the underlying price index actually moves — stable weeks keep the previous take.

AI-authored from this route's 30-day price index. Article last regenerated Oct 10, 2026. Fares shift continuously — confirm at booking.