Question 1

What is the cheapest Dublin to Chicago O'Hare Intl flight route?

Accepted Answer

Fly from Dublin to Chicago O'Hare Intl for the best Dublin - Chicago O'Hare Intl flight prices

Question 2

How many flights depart from Dublin to Chicago O'Hare Intl Airport on average per day?

Accepted Answer

9 flights are operational daily from Dublin to Chicago O'Hare Intl Airport as of January 2026. The most popular departure time for this route is 10:00, with 59% of flights per day taking off at midday.

Question 3

Which stopover airport has the shortest travel time from Dublin to Chicago O'Hare Intl Airport?

Accepted Answer

Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 15m.

Question 4

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around £448 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Dublin for as low as £384 on momondo.

Question 5

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest month to fly to Chicago O'Hare Intl Airport from Dublin is in November. Flight prices, which tend to average around £347, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Chicago O'Hare Intl Airport from Dublin during September instead. Flights to Chicago O'Hare Intl Airport in September, while not as cheap as those in November, still average around £355.

Question 6

Can stopping save me money on Dublin to Chicago O'Hare Intl Airport flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Dublin to Chicago O'Hare Intl Airport.

Question 7

What is the cheapest airline that flies from Dublin to Chicago O'Hare Intl?

Accepted Answer

Finnair is the most popular carrier operating from Dublin to Chicago O'Hare Intl

Question 8

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

Question 9

Which airline has the best punctuality record on Dublin to Chicago flights?

Accepted Answer

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

Question 10

Which stopover airport has the shortest connection time from Dublin to Chicago O'Hare Intl Airport?

Accepted Answer

London (LHR) has the shortest average stopover time for this route: 2h 33m.

Question 11

How many flights depart from Dublin to Chicago O'Hare Intl Airport on average per week?

Accepted Answer

As of January 2026, there are 63 flights per week flying from Dublin to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Question 12

Which stopover airport offers the lowest fares from Dublin to Chicago O'Hare Intl Airport?

Accepted Answer

Flights via London (LHR) offer the lowest average return price of £1,157.

Question 13

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest day to depart from Dublin to Chicago O'Hare Intl Airport is on a Wednesday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Wednesday will often find tickets for as low as £522. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Chicago O'Hare Intl Airport on Saturday is £589.

Question 14

How often are flights from Dublin to Chicago delayed?

Accepted Answer

Historically, on average around 13% of flights between Dublin and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Question 15

How have Dublin to Chicago O'Hare Intl Airport flight prices changed over time?

Accepted Answer

As of January 2026, prices for Dublin to Chicago O'Hare Intl Airport flights are approximately 17% cheaper when compared to flights at the same time last year.

Question 16

Which airlines fly to Chicago O'Hare Intl Airport?

Accepted Answer

Aer Lingus, United Airlines and British Airways are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Dublin according to our data. Aer Lingus is the first choice among our users, with 72% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

Question 17

What is the most punctual flight time for Dublin to Chicago flights?

Accepted Answer

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Question 18

Which airport is the most popular for stopovers for flights between Dublin and Chicago O'Hare Intl Airport?

Accepted Answer

Reykjavik (KEF) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

Question 19

What cabin class options are available on Dublin to Chicago O'Hare Intl flights?

Accepted Answer

There are 3 cabin classes available to choose from on Dublin to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 20

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Accepted Answer

The cheapest time of day to fly to Chicago O'Hare Intl Airport is in the afternoon when flights can be purchased for as low as £488. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is at midday when prices are around £589.

Question 21

When did momondo last update prices for flights from Dublin Airport to Chicago O'Hare Intl Airport?

Accepted Answer

Prices for flights from Dublin Airport to Chicago O'Hare Intl Airport refresh daily.

Question 22

How many operators does momondo search for flights from Dublin Airport to Chicago O'Hare Intl Airport?

Accepted Answer

As of January 2026, there are 4 operators available to choose from for flights from Dublin Airport to Chicago O'Hare Intl Airport.

Question 23

How old do you have to be to fly from Dublin Airport to Chicago O'Hare Intl Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Chicago O'Hare Intl Airport.

Question 24

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

Accepted Answer

The travel and health documents required for your trip to Chicago O'Hare Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best price found	£251
Fastest flight time	8h 00m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £235	Free Cancellation	Rating 7.1 603 reviews	Search Icelandair flights
British Airways	PriceFrom £292	Free Cancellation	Rating 6.7 7,704 reviews	Search British Airways flights
Aer Lingus	PriceFrom £337	Free Cancellation	Rating 7.2 1,442 reviews	Search Aer Lingus flights
United Airlines	PriceFrom £346	Free Cancellation	Rating 7.4 9,209 reviews	Search United Airlines flights

Cheap flights from Dublin to Chicago from £301

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