Chicago → Dublin flights

Chicago–Dublin: target $361 and book within the $333–$378 band

Key takeaways

• Median fare is $361, based on 17 daily snapshots of the cheapest cached fares on this route.
• Bottom-quartile fares reach $333 (p25), meaning roughly a quarter of observed prices hit that floor — a realistic target for patient bookers.
• The top quartile begins at $378 (p75), so anything above that starts pushing toward the observed ceiling of $416.
• Price spread is 25% ($333–$416), a moderate range that suggests meaningful savings are possible but dramatic last-minute bargains are unlikely.
• Sample size is 17 days — slightly thin, so treat these figures as directional rather than definitive; monitor fares over several weeks before committing.

30-day price trend

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

The full picture

The ORD–Dublin route shows a fairly compact fare distribution: the middle half of all observed prices falls between $333 and $378, a spread of just $45. That compression suggests this is a reasonably stable transatlantic corridor without the wild swings you sometimes see on thinner or more seasonal routes. The full observed range — $333 to $416 — represents a 25% spread, which is moderate. In practical terms, you're not gambling on a miracle fare; the floor is attainable, but it isn't dramatically lower than the median.

On transatlantic routes generally, fares tend to soften in the 2–5 month booking window ahead of travel, then firm up inside 6–8 weeks as remaining inventory shrinks. Given that the bottom quartile here ($333) is only $28 below the median ($361), you don't need to wait for a dramatic dip — fares near the median represent solid value. If you see anything at or below $361, that's historically within the cheaper half of what this route has offered. If prices push past $378, you're entering the pricier quartile and it may be worth waiting briefly to see if they retreat, provided your travel dates are flexible.

No dominant carrier pattern is identifiable from this dataset, so there's no data-backed reason to favor one airline over another on this route at this time. Similarly, day-of-week booking effects are not visible in these snapshots and shouldn't be assumed.

One honest caveat: with only 17 sample days, these statistics carry more uncertainty than a full 30-day dataset would. The median and quartile figures are directionally useful, but a wider sample could shift them meaningfully in either direction. Cross-reference with a live fare tracker before booking.

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