Cheap flights from Chicago to Dublin from $239
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Dublin departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to Dublin
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Scandinavian Airlines flights from Chicago to Dublin
Our best Scandinavian Airlines deals on Chicago to Dublin flight tickets
TAP AIR PORTUGAL flights from Chicago to Dublin
Our best TAP AIR PORTUGAL deals on Chicago to Dublin flight tickets
See travel insights to Dublin from
How to get the cheapest flight ticket from Chicago to Dublin
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Dublin?
In general, February is the cheapest month to fly from Chicago to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $537. If you’re not able to fly to Dublin in February, then January is your next best option. Flight prices from Chicago to Dublin during January average around $551.
What is the cheapest day to depart on your flight to Dublin?
The cheapest day to depart from Chicago to Dublin is on a Tuesday. Travelers who choose to depart for Dublin on a Tuesday will often find tickets for as low as $732. Flights from Chicago to Dublin on a Friday will generally be more expensive and average around $807. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Dublin?
At noon is the cheapest time of day to fly from Chicago to Dublin when you can find flight prices for as low as $735. Flying to Dublin at noon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $766.
What is the cheapest Chicago to Dublin flight route?
Fly from Chicago O'Hare Intl to Dublin for the best Chicago - Dublin flight prices
How far in advance should I book a flight to Dublin?
You are more likely to see cheaper flights to Dublin from Chicago when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $693 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Chicago for as low as $638 on momondo.
What cabin class options are available on Chicago to Dublin flights?
There are 3 cabin classes available to choose from on Chicago to Dublin 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 airline that flies from Chicago to Dublin?
TAP AIR PORTUGAL, Icelandair, and JetBlue are the most popular carriers operating from Chicago to Dublin
What airlines fly to Dublin?
Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Dublin from Chicago according to our data. Aer Lingus is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 17 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.
How many flights depart from Chicago to Dublin on average per day?
As of June 2025, 17 flights take off from Chicago and land in Dublin each day. The most common flight departure time for this route is 10:00PM, with 82% of daily flights taking off in the evening.
How many flights depart from Chicago to Dublin on average per week?
As of June 2025, 119 flights take off from Chicago and land in Dublin each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
When to book flights from Chicago to Dublin
Cheap Chicago to Dublin (CHI to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Dublin
How far is Chicago to Dublin by plane?
There are 3657.3 mi between Chicago and Dublin. A reasonable flight in good conditions will take 7h 20m.
When did momondo last update prices for flights from Chicago to Dublin Airport?
Prices for flights from Chicago to Dublin Airport refresh daily.
How many operators does momondo search for flights from Chicago to Dublin Airport?
There are 17 operators available for flights from Chicago to Dublin Airport as of June 2025.
How old do you have to be to fly from Chicago to Dublin Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The travel and health documents you'll need for your trip to Dublin Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago to Dublin?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago to Dublin is Boeing 787-8 Dreamliner (47.34% of total bookings). The next most popular plane models are Boeing 787 Dreamliner (16.09%), Airbus A330 (11.18%), and Boeing 787-10 Dreamliner (5.84%).
What is the most popular airline from Chicago to Dublin?
Based on momondo bookings for flights between Chicago and Dublin, the leading airline is Aer Lingus, making up 49% of the total bookings. Other popular airlines include United Airlines with 17%, American Airlines with 11%, and Icelandair with 7%.
Best airlines flying from Chicago to Dublin
Compare and see reviews for airlines that fly from Chicago to Dublin with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $355 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $393 | Free Cancellation | Rating 7.1 1,885 reviews | |||
| PriceFrom $400 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $445 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $473 | Free Cancellation | Rating 7.5 1,623 reviews | |||
| PriceFrom $482 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $507 | Free Cancellation | Rating 7.0 2,776 reviews | |||
| PriceFrom $519 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.2 10,000 reviews |
Finnair Flights From Chicago to Dublin
The lowest priced Finnair flight from Chicago to Dublin from the last 72 hours was $526. Generally, Finnair has 7 flights on this route every week with an average price of $807. Finnair is rated 7.6/10 by our users.
SWISS Flights From Chicago to Dublin
$473 is the best SWISS flight deal from Chicago to Dublin found on momondo over the last 72 hours. The average SWISS ticket price found was closer to $818, however, with flight time and availability significantly affecting the price. SWISS (7.5/10 from 1,623 user reviews) flies into Dublin from Chicago 7 times in an average week so prices can vary.
Traveling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Chicago to Dublin?
It is quick and easy to find Chicago to Dublin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dublin that suits you.
Can I find flights from Chicago to Dublin with flexible booking policies on momondo?
All flight searches from Chicago to Dublin on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Chicago to Dublin?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Dublin from Chicago.
I’m not ready to book a flight from Chicago to Dublin right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Chicago and alert you when they change.