Cheap Flights from Chicago to Dublin from $247

Frequently Asked Questions

• What are the cheapest flights from Chicago to Dublin (CHI-DUB)?

  Based on Trip.com data, Porter Airlines offers one-way fares as low as $247 on Cheapest nonstop routes (e.g. MDW to DUB on Sat, Oct 17), while Scandinavian Airlines offers Cheapest nonstop round-trips from $463 departing on Fri, Nov 6 and returning on Sun, Nov 8.

• Which airlines offer direct flights from Chicago to Dublin?

  At the moment, you can catch a nonstop flight from Chicago to Dublin with the following airlines, including: Aer Lingus Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Chicago (CHI) to Dublin (DUB) and what is the distance?

  It takes around 7 hours 25 minutes to fly from Chicago (CHI) to Dublin (DUB).

• When is the best time to book flights from Chicago to Dublin?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Dublin is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Chicago to Dublin?

  Based on Trip.com data in the past 4 weeks, there is 12 flight per week flying from Chicago to Dublin. You can check the weekly schedule for popular airlines on this route below: Aer Lingus: S/M/T/W/T/F/S -- EI122 (16:07)

• How can I find the best deals on flights from Chicago to Dublin?

  To find best deals on flights from Chicago to Dublin, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Oct 17, with one-way flights priced at just $247.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Dublin travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Chicago (CHI) to Dublin (DUB) the cheapest?

  The cheapest months to fly from Chicago to Dublin is July, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Chicago to Dublin on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Chicago to Dublin on October 13, 2026 with Porter Airlines, with prices starting at $242.

• Which airports can I fly into Dublin from Chicago?

  You can arrive at any of the following airports in Dublin: Dublin Airport (DUB). Flights from O'Hare International Airport to Dublin Airport (ORD-DUB) are by far the most popular option for this route.

• Is there any time difference between Chicago and Dublin?

  The time difference between Dublin and Chicago is 6h.

• How do I change or cancel my ticket from Chicago to Dublin?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Chicago to Dublin?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Chicago to Dublin is $561. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Chicago to Dublin?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Chicago to Dublin is $1,081. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Chicago to Dublin on Trip.com?

  Enter Chicago and Dublin, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Chicago to Dublin route?

  Jetblue Airwaysare the most popular budget airlines flying from Chicago to Dublin. Check baggage, seat and payment fees before comparing the final price.