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…

No cached fares for exactly 2026-06-08 → 2026-06-15. Showing recent fares on ORD → DUB — pick a different date in the calendar above or run a live search.

Chicago → Dublin · 5 fares

Cached from Travelpayouts · filter & sort below

Showing 5 of 5 results

Cheapest
United Airlines · UA 510
OutboundORD → DUBSun, Jun 14 · 1:20 AM· 9h 23m· 2 stops
$342
one-way
Book →
Air Canada · AC 508
OutboundORD → DUBWed, Sep 9 · 8:45 PM· 8h 10m· 1 stop
ReturnDUB ← ORDWed, Sep 16 · 8:50 AM· 13h 13m· 1 stop
$657
total round-trip
Book →
SAS · SK 944
OutboundORD → DUBTue, Aug 18 · 12:15 AM· 10h 45m· 1 stop
ReturnDUB ← ORDFri, Aug 21 · 11:40 AM· 11h 25m· 1 stop
$718
total round-trip
Book →
JetBlue · B6 7862
OutboundORD → DUBMon, May 18 · 12:20 PM· 8h 44m· 1 stop
ReturnDUB ← ORDFri, Jun 5 · 10:30 AM· 10h 26m· 1 stop
$742
total round-trip
Book →
Air Canada · AC 506
OutboundORD → DUBThu, Mar 25 · 7:00 PM· 8h 14m· 1 stop
ReturnDUB ← ORDTue, Apr 13 · 4:55 AM· 11h 10m· 1 stop
$744
total round-trip
Book →

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.

Apr
No data
May
Peak
from $742
Jun
No data
Jul
No data
Aug
Peak
from $718
Sep
Low
from $657
Oct
No data
Nov
No data
Dec
No data
Jan
No data
Feb
No data
Mar
Peak
from $744

Cheapest next 12 months: September from $657 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.

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.