International route
Cheap flights from Chicago to Dublin
O'Hare International Airport (ORD) to Dublin Airport (DUB). 3,664 miles, connecting flights only.
ORD to DUB at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 3,664 milesgreat-circle
- Typical flight time
- 7h 5mif flown nonstop
- Nonstop airlines
- None (connecting only)
- Nonstop flights per day
- 0connections available
- Cheapest month
- February 2027over the next six months
- Best day to fly
- Wednesday18% less than Sunday
- Time difference
- 6h aheadDublin vs Chicago
Chicago to Dublin
Round trips from $320
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Feb 9.
Cheapest month: February 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppChicago to Dublin fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Chicago to Dublin
No nonstop service: 17 airlines offer one-stop itineraries.
- EIAer LingusConnecting via SNN · first checked bag from $70
- AFAir FranceSkyTeamConnecting via CDG, ORY · first checked bag from $75
- AAAmerican AirlinesoneworldConnecting via DFW, MIA, DCA, JFK · first checked bag from $40
- OSAustrian AirlinesStar AllianceConnecting via VIE · first checked bag from $75
- BABritish AirwaysoneworldConnecting via LHR · first checked bag from $75
- DLDelta Air LinesSkyTeamConnecting via MSP, JFK, LGA · first checked bag from $35
- AYFinnaironeworldConnecting via HEL · first checked bag from $70
- FIIcelandairConnecting via KEF · first checked bag from $70
- B6JetBlueConnecting via JFK, BOS, FLL · first checked bag from $40
- LHLufthansaStar AllianceConnecting via FRA, MUC · first checked bag from $75
- NONorse Atlantic AirwaysLow-costConnecting via OSL · first checked bag from $80
- SKSAS Scandinavian AirlinesSkyTeamConnecting via ARN, OSL · first checked bag from $70
- LXSWISSStar AllianceConnecting via ZRH, GVA · first checked bag from $75
- TPTAP Air PortugalStar AllianceConnecting via OPO · first checked bag from $70
- UAUnited AirlinesStar AllianceConnecting via IAH, EWR, IAD · first checked bag from $40
- VSVirgin AtlanticSkyTeamConnecting via LHR · first checked bag from $75
- WSWestJetConnecting via YYZ · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- New York (JFK)AADLB63 airlines
- London (LHR)BAVS2 airlines
- Oslo (OSL)SKNO2 airlines
- Dallas (DFW)AA1 airline
- Miami (MIA)AA1 airline
Which airport should I use?
Chicago has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other departure airports near Chicago
Tips for this route
- There is no scheduled nonstop between ORD and DUB. Every itinerary connects, most often through JFK, LHR or OSL, so sort results by total travel time rather than price alone.
- February 2027 is the cheapest month to fly over the next six months, with round trips from $320; September 2026 is the most expensive at $431 and up, a difference of $111 per traveler.
- Departing on a Wednesday averages 18% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
- Dublin is 6 hours ahead of Chicago. Expect to lose 6 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Destination guide
Dublin: Pubs, literature and US Preclearance on the way home
Dublin is one of the cheapest and friendliest European gateways, with Aer Lingus, Delta, United, American and JetBlue flying nonstop from a dozen US cities. Clear US customs in Dublin before your flight home, then land as a domestic passenger.
Best time to visit: May–September has the longest days and mildest weather (it's never hot). March brings St. Patrick's festival crowds. October–February is damp and dark but hotel rates fall sharply.
Flying the other way? Dublin to ChicagoFares, airlines and tips for DUB to ORD.Ready to compare live fares?
See every airline on ORD–DUB side by side with bags and seat rules spelled out.
Search Chicago to DublinChicago to Dublin: common questions
How long is the flight from Chicago to Dublin?
There are no nonstop flights, so the trip from Chicago (ORD) to Dublin (DUB) takes 7h 5m of flying plus a layover, usually 10h 5m or more door to door across 3,664 miles.
Which airlines fly nonstop from ORD to DUB?
No airline currently flies nonstop between Chicago (ORD) and Dublin (DUB). The most common connections are through JFK, LHR and OSL.
What is the cheapest month to fly from Chicago to Dublin?
Over the next six months, February 2027 has the lowest round-trip fares from Chicago (ORD) to Dublin (DUB), starting at $320 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.
How far in advance should I book Chicago to Dublin flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Chicago and Dublin?
Dublin is 6 hours ahead of Chicago. ORD is on America/Chicago time and DUB on Europe/Dublin time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.