Chicago → Madrid flights

ORD–Madrid fares hover near $319 — one outlier low of $166

Key takeaways

• Median fare is $319, and the middle 50% of days (p25–p75) sat tightly between $312 and $326.
• The $166 low looks like a rare outlier — it's far below the rest of the data and shouldn't be the target price.
• A 113% spread between low and high sounds large, but it's driven almost entirely by that single low fare, not routine volatility.
• Most of the 30 sampled days priced within a $14 band ($312–$326), suggesting this route is fairly stable day-to-day.
• No dominant carrier was identifiable from this data, so we can't attribute the low fare to a specific airline sale.

30-day price trend

See full numbers and stats on the ORD → MAD price history page.

The full picture

Over the 30-day sampling window, Chicago-to-Madrid fares showed a median of $319, with the bulk of days landing in a narrow $312–$326 band (the 25th–75th percentile range). That tight interquartile spread tells the real story: on most days, this route prices consistently, without the wild day-to-day swings travelers often assume are typical. The one standout is a $166 low fare — a single-day anomaly far outside the rest of the distribution, likely a flash sale, mistake fare, or one-off routing that isn't representative of what you should expect to pay.

Because the outlier skews the raw spread to 113%, it's worth being precise about what the data actually supports: if you're budgeting, plan around the $312–$326 range, not the $166 low. We don't have granular timestamp data on when in the booking horizon (i.e., days-before-departure) these snapshots were taken, so we can't respons­ibly say fares soften at a specific point before departure — only that the price level itself has been stable across the 30 days we observed.

We also don't have visibility into a dominant carrier for this route in the current dataset, so no airline-specific booking pattern can be claimed. The practical takeaway: treat anything at or below the $312 mark as a good fare for this route, and don't hold out for a repeat of the $166 fare — it's an outlier, not a pattern. Caveat: with only 30 daily snapshots and no visibility into booking-window timing or carrier mix, this reflects recent cached pricing, not a guaranteed forecast of future fares.

Ready to look at fares?

• When to book
  Chicago → Madrid
  AI-authored booking-window guide
  Open →
• Price history
  Chicago → Madrid
  30-day daily price snapshots
  Open →
• Where to stay
  Best hotels in Madrid
  🇪🇸 Spain
  Open →
• When to book
  Chicago → London
  Same origin, different destination
  Open →
• Read
  Barcelona Tapas Guide: Beyond the Tourists
  Spain · 6 min
  Open →