Cheap Flights from Dublin to Chicago from $315

Frequently Asked Questions

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

  Based on Trip.com data, WestJet offers one-way fares as low as $315 on Cheapest nonstop routes (e.g. DUB to ORD on Sat, Sep 26), while Icelandair offers Cheapest nonstop round-trips from $504 departing on Wed, Oct 7 and returning on Sun, Oct 11.

• Which airlines offer direct flights from Dublin to Chicago?

  At the moment, you can catch a nonstop flight from Dublin to Chicago with the following airlines, including: Aer Lingus Air Transat Iberia WestJet 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 Dublin (DUB) to Chicago (CHI) and what is the distance?

  It takes around 8 hours 15 minutes to fly from Dublin (DUB) to Chicago (CHI).

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

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Dublin to Chicago 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 Dublin to Chicago?

  Based on Trip.com data in the past 4 weeks, there is 42 flight per week flying from Dublin to Chicago. You can check the weekly schedule for popular airlines on this route below: Aer Lingus: S/M/T/W/T/F/S -- EI123 (12:06) Iberia: S/M/T/W/T/F/S -- IB6023 (17:08)

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

  To find best deals on flights from Dublin to Chicago, 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, Sep 26, with one-way flights priced at just $315.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Finnair.
  · 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 Chicago travel is around July.
  · Get exclusive promo codes for Trip.com app users.

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

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

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

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Dublin to Chicago on August 28, 2026 with WestJet, with prices starting at $299.

• Which airports can I fly to for Chicago from Dublin?

  You can land at any one of the following hubs in Chicago, with Dublin Airport to O'Hare International Airport (DUB-ORD) is by far the most common option on this route: O'Hare International Airport (ORD) Chicago Midway International Airport (MDW) Chicago Rockford International Airport (RFD).

• Is there any time difference between Dublin and Chicago?

  The time difference between Chicago and Dublin is 6h.

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

  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 Dublin to Chicago?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Dublin to Chicago is $887. Fares vary by travel date, airline and availability.

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

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Dublin to Chicago is $953. The final price depends on the outbound and return dates, airline and fare conditions.

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

  Enter Dublin and Chicago, 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 Dublin to Chicago route?

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