ORD ⇄ DUB, Ireland

Cheap flights from Chicago to Dublin

A good round-trip price from Chicago to Dublin is under $649. Over the last 2 days the lowest fare we found each day was usually around $693, and the lowest of all was $649, for travel in February 2027. The cheapest month to fly is February 2027, at around $693.

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Good price: $649; under this is a deal · round trip
Typical price: $693; the middle of what we saw · round trip
Lowest we saw: $649; for February 2027 · round trip
Nonstop: 0%; of the cheapest fares

Cheapest months to fly

The cheapest round trip for each departure month, from fares seen on November 11, 2026.

Feb 27$649 (Cheapest)

Price over the last 30 days

The lowest round-trip fare we found each day. Today: $649.

$737$649

Deals on this route

Members get an alert when a fare on this route drops well under $649.

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Questions about this route

What is a good price to fly from Chicago to Dublin?

Under $649 round trip is a good price. Over the last 2 days the typical fare was $693 and the lowest was $649.

Are there cheap nonstop flights from Chicago to Dublin?

None of the cheapest daily fares we found were nonstop. Expect one stop at the lowest prices.

How far ahead should I book flights from Chicago to Dublin?

The cheapest quarter of fares we found were for trips about 90 days ahead. Deals also appear at short notice, which is why members get alerts.

How long is the flight from Chicago to Dublin?

About 8 h 50 min one way on the cheapest fares we found, including any stops.

Fares like these don't wait

Members get an alert when a fare from their city drops far below normal, with the dates and a link to book.