€280 Cheap flights to Chicago O'Hare Intl Airport
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Chicago O'Hare Intl Airport departing on 24/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Flights to Chicago O'Hare Intl Airport – Travel Insights & Trends
Get data-powered insights and trends for flights to Chicago O'Hare Intl Airport to help you craft the best travel plan.
What cabin class options are available on Ireland to Chicago O'Hare Intl flights?
There are 2 cabin classes available to choose from on Ireland 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.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
On average, the least expensive day to fly to Chicago O'Hare Intl Airport from Ireland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as €641. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Chicago O'Hare Intl Airport is Sunday, with ticket prices averaging around €782.
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
In general, February is the cheapest month to fly from Ireland to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €464. If you are unable to visit Chicago O'Hare Intl Airport during the month of February, then departing from Ireland during the month November is also very affordable. Most momondo users find prices during this month for around €471.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Our data shows that the cheapest Ireland to Chicago O'Hare Intl Airport flights are usually those with departure times in the evening. Our users have found flights to Chicago O'Hare Intl Airport in the evening for as low as €560. Flights to Chicago O'Hare Intl Airport are more costly in the morning, with an average ticket price of €697. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Ireland to Chicago O'Hare Intl flight route?
Fly from Shannon to Chicago O'Hare Intl for the best Ireland - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Ireland when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around €549 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Ireland for as low as €452 on momondo.
What is the cheapest airline that flies from Ireland to Chicago O'Hare Intl?
WestJet, Icelandair, and Scandinavian Airlines are the most popular carriers operating from Ireland to Chicago O'Hare Intl
Which airlines fly to Chicago O'Hare Intl Airport?
Aer Lingus, United Airlines and British Airways are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Ireland according to our data. Aer Lingus is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 7 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How long does it take to fly to Chicago O'Hare Intl Airport?
The flight from Ireland to Chicago O'Hare Intl Airport depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Dublin (a popular airport in Ireland) to Chicago O'Hare Intl (the most popular airport in Chicago O'Hare Intl Airport), then the flight time is 8h on average. If you fly from Cork (another popular airport in Ireland) to Chicago O'Hare Intl, then the average flight time is 14h 10m.
How many flights depart from Ireland to Chicago O'Hare Intl Airport on average per day?
The number of flights available between Ireland and Chicago O'Hare Intl Airport is 3 per day as of March 2025. The most frequent departure time is 11:00, with 58% of daily flights leaving at midday.
Cheapest flights to Chicago O'Hare Intl
Find the cheapest flights to Chicago O'Hare Intl from your nearest city or airport
| CHEAPEST MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM DUBLIN | February | 16% cheaper | Flying from Dublin to Chicago O'Hare Intl Airport costs on average just €464 in February |
| MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM DUBLIN | July | 29% more expensive | It costs about €709 for flights to Chicago O'Hare Intl Airport from Dublin in July |
| MOST POPULAR MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM DUBLIN | August | 174% more users visited | More momondo users searched in flights to Chicago O'Hare Intl Airport from Dublin in August than any other month |
Cheap Chicago O'Hare Intl Airport flight deals and tips
Summary info about Chicago O'Hare Intl Airport flight prices, duration and airlines
Best One-Way Price | €280 |
|---|---|
Best Round-Trip Price | €336 |
Fastest flight time | 12h 00m |
Popular in | July |
Frequently asked questions about flying to Chicago O'Hare Intl Airport
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
In general, when booking your flight to Chicago O'Hare Intl Airport, February is the cheapest month on average.
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
Most flyers found that booking flight tickets 81 days in advance of their planned departure date is, on average, the best time to get cheap flights to Chicago O'Hare Intl Airport.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
Most of our users find that booking their departure to Chicago O'Hare Intl Airport on a Wednesday is the cheapest. Conversely, departing on a Sunday seems to be the most expensive.
What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?
Typically, cheap prices to Chicago O'Hare Intl Airport are most often found for Evening flights. Cheap prices are less likely for Morning flights.
Is there an alternative airport near Chicago O'Hare Intl Airport?
Finding an alternative and possibly cheaper destination airport near Chicago O'Hare Intl Airport is possible. If you are planning a flight to Chicago O'Hare Intl Airport, consider booking flights to Chicago Midway Airport (14 km from Chicago city centre).
Which airlines fly to Chicago O'Hare Intl Airport?
You can find flights to Chicago O'Hare Intl Airport from 7 airlines. If you’re unsure which to fly with, consider booking your flight with Aer Lingus, United Airlines or British Airways as these are the most popular among our users. Aer Lingus is the most favoured with 64% of momondo travellers booking flights with this airline.
When did momondo last update prices for flights to Chicago O'Hare Intl Airport?
Prices for flights to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights to Chicago O'Hare Intl Airport?
As of March 2025, there are 9 operators available to choose from for flights to Chicago O'Hare Intl Airport.
How old do you have to be to fly to Chicago O'Hare Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
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 licence, 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.
Travelling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal to Chicago?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Chicago. Millions of users trust and use momondo every year so you are in good company.
Can I find flights to Chicago with flexible booking policies on momondo?
Yes. All flights to Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights to Chicago?
Once you have performed a search for flights to Chicago, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight to Chicago right now. Can momondo alert me if prices change?
If you are not ready to book a flight to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to Chicago and let you know when they change.