How long is the flight from Chicago to Dublin?

Non-stop flights on ORD → DUB are typically around 7 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.

Which airlines fly from Chicago to Dublin?

The main carriers on this route are Aer Lingus, American, United. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.

When is the cheapest time to fly from Chicago to Dublin?

Historically the lowest fares land in January, February, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.

How far ahead should I book Chicago to Dublin?

Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.

Can I book directly on destination.com?

The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

ORD → DUB

Chicago to Dublin flights.

Live cached fares on Chicago (ORD) → Dublin (DUB), refreshed every 30 minutes. Non-stop and connecting itineraries side by side — compare airlines, times and stops, then book in one click.

Flying time
~7h non-stop
Airlines
Aer Lingus, American, United
Cheapest months
January, February, November

Flex dates · cheapest nearby

Loading prices…

Read our best-time-to-book guide for ORD → DUB →Target price, booking window, weekday pattern.

See 30-day price history for ORD → DUB →Median fare, lows, and best-day patterns.

No cached fares for exactly 2026-10-22 → 2026-10-29. Showing recent fares on ORD → DUB — pick a different date in the calendar above or run a live search.

Chicago → Dublin · 3 fares12-month low · $487

Cached from Travelpayouts · filter & sort below

Points

Showing 3 of 3 results

Alt date · 7 months later
United Airlines · UA 5636
Long · 23h 58m⚠ Basic economy may apply
OutboundORD → DUBFri, May 7 · 1:15 AM· 7h 30m· Non-stop
ReturnDUB ← ORDSat, May 15 · 8:20 AM· 9h 43m· 1 stop
$487
total round-trip
Live search your date →
Alt date · 2 months later
Icelandair · FI 852
Long · 21h 35m
OutboundORD → DUBFri, Jan 1 · 12:30 AM· 8h 50m· 1 stop
ReturnDUB ← ORDFri, Jan 15 · 11:30 AM· 9h 30m· 1 stop
$669
total round-trip
Live search your date →
Alt date · 3 weeks earlier
JetBlue · B6 112
Long · 31h 5m
OutboundORD → DUBWed, Sep 30 · 2:38 PM· 8h 44m· 1 stop
ReturnDUB ← ORDMon, Oct 5 · 9:40 AM· 10h 14m· 1 stop
$740
total round-trip
Live search your date →

Try a nearby airport

Thin routes often have more options from a neighbouring airport.

Chicago (MDW) → Dublin (DUB)

nearby origin

About Chicago → Dublin

Aer Lingus 2x daily with US pre-clearance on the return. Low transatlantic base fares + cheap onward to continental Europe.

Typical non-stop flying time is around 7 hours. Major carriers on this route include Aer Lingus, American, United. Fares are usually cheapest in January, February, November — book 6–10 weeks ahead and avoid school-holiday peaks (late June–August, Christmas–New Year) for the best pricing.

Month-by-month price guide: Chicago to Dublin

Live cheapest round-trip fare cached on ORD → DUB for each of the next 12 months. Tap any month and run a live search to confirm.

Sep
Peak
from $740
Oct
No data
Nov
No data
Dec
Peak
from $669
Jan
No data
Feb
No data
Mar
No data
Apr
No data
May
Low
from $487
Jun
No data
Jul
No data
Aug
No data

Cheapest next 12 months: May from $487 round-trip. Run a live search →

Booking window tip

Medium-haul is the classic 6-10 week booking window. Fares drift down as the departure gets closer until about 21 days out, then start climbing fast. Tuesday and Wednesday departures are typically 10-18% cheaper than Friday or Sunday.

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Questions, answered

How long is the flight from Chicago to Dublin?
Non-stop flights on ORD → DUB are typically around 7 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.
Which airlines fly from Chicago to Dublin?
The main carriers on this route are Aer Lingus, American, United. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.
When is the cheapest time to fly from Chicago to Dublin?
Historically the lowest fares land in January, February, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.
How far ahead should I book Chicago to Dublin?
Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.
Can I book directly on destination.com?
The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.