Best Time to Book

Seattle → Las Vegas flights

Seattle to Las Vegas fares have median around $105, but with a 131% spread, watch a window of days rather than one date.

Seattle–Vegas fares swing wide — $105 is the number to beat

Key takeaways

Median fare is $105, with a bottom quartile at $105 and top quartile at $137
Fares ranged from a low of $68 to a high of $157 across the sample
A 131% spread between low and high means timing can meaningfully change what you pay
Sample is based on just 12 snapshots, so treat patterns as directional, not definitive
No dominant carrier was identifiable from this data, so fare swings likely reflect broader demand shifts rather than one airline's pricing

30-day price trend

SEA → LAS · cheapest cached fare per day · last 13 days · ↓ 50%

$68 low$157 high

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

The full picture

The data shows a wide range for this route — fares bottomed out at $68 and topped $157, a 131% spread that's large enough to matter when you're deciding when to pull the trigger. With the median sitting at $105 and the 25th percentile also near $105, it looks like a meaningful chunk of the cheaper fares cluster close to that number, while the upper quartile climbs to $137. That gap suggests there's real room to save if you avoid the higher-priced days, though it also means a casual search on the wrong day could cost you 30-50% more than the median.

We don't have enough resolution in this sample to point to a specific booking window with confidence — 12 snapshots is a thin dataset for drawing firm conclusions about how far in advance to book. What we can say is that the spread itself is a signal: routes with this much variability tend to reward comparison shopping across several days rather than booking the first fare you see. If you're flexible, checking prices periodically and booking when you see something at or below the $105 median is a reasonable approach given what the data shows.

We can't identify a dominant carrier or clear day-of-week pattern from this dataset, so we won't speculate about specific airline pricing behavior or claim certain weekdays are cheaper — that's not something this data supports. The honest takeaway: this is a route with real price volatility, a small sample size, and enough spread that patience and a bit of comparison shopping should pay off, but we can't promise a precise formula for timing it perfectly.

Ready to look at fares?

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

Related travel pages

Why we regenerated this article: Median fare ↓ 23% ($137 → $105). 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.