Denver → London flights
DEN–LHR fares show a median of $299 across 25 days of snapshots, with the bottom quartile holding near $298 — book when prices sit near the floor.
Denver–London: median $299, but a quartile spikes to $483
Key takeaways
- Median fare is $299, and the bottom 25% of fares sit right at $298 — essentially the floor price shows up often.
- Spread is wide at 62%, with the top quartile jumping to $483, so timing matters more than usual on this route.
- The gap between p25 ($298) and p75 ($483) suggests two distinct pricing tiers rather than gradual drift.
- High fares reach $483, nearly 62% above the median — worth avoiding if you have flexibility.
- Sample size is 25 days, a reasonably solid window but still short of a full season's view.
30-day price trend
See full numbers and stats on the DEN → LHR price history page.
The full picture
The data shows a route with a surprisingly low floor — a $298 fare shows up often enough to anchor the bottom quartile — but a ceiling that's more than 60% higher. That 62% spread is wide enough to suggest DEN–LHR doesn't price smoothly; it looks more like two pricing tiers, where a chunk of inventory sits near $298–$300 and another chunk jumps to the $450–$483 range. For travelers, that means the median ($299) is a realistic target, not just a statistical abstraction — it's close to what a meaningful share of fares actually clear at.
We don't have booking-window data (days-before-departure) in this snapshot set, only 25 days of rolling cached fares, so we can't say definitively when in the booking horizon prices soften. What we can say is that the persistence of a low quartile clustered right at the floor suggests that patient searching — rather than booking at the first price you see — has a real chance of landing near $299 rather than $400+.
We don't have carrier-level breakdowns or day-of-week patterns in this dataset, so we can't respons any claims about specific airlines or weekday effects on this route. The honest takeaway: with a 62% spread and only 25 sample days, this is a route where checking multiple times before committing is worth the effort, but we can't point to a specific date pattern or airline behavior — the data simply isn't granular enough for that.
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Related travel pages
Why we regenerated this article: Median fare ↓ 12% ($339 → $299). 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.