$410 Cheap Flights from Dublin (DUB) to Chicago (ORD)
Popular airlines from Dublin Airport (DUB) to Chicago O'Hare Intl. Airport (ORD)
Brussels AirlinesBrussels Airlines
LufthansaLufthansa
British AirwaysBritish Airways
IberiaIberia
Aer LingusAer Lingus
IcelandairIcelandair
KLMKLM
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Cheap Flights from Dublin to Chicago (DUB-ORD)
Alternative airports near Chicago
Prices were available within the past 7 days. Prices and availability are subject to change.
Find the cheapest month to fly from Dublin (DUB) to Chicago (ORD)
February is typically the cheapest month to flyFebruary is typically the cheapest month to fly
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Dublin (DUB) to Chicago (ORD) at a glance
Travel from Dublin (DUB) to Chicago (ORD) with a range of airlines offering this international long-haul route. Evaluate your options between full-service and low-cost carriers to find the best itinerary that matches your budget and schedule as you prepare to discover Chicago's iconic attractions and neighborhoods. Stay informed about key details such as flight times and current flight status for your journey from Dublin Airport to O'Hare International Airport.
- Fastest flight duration: around 8h 30m non-stop
- Route distance: roughly 3,700 miles (5,950 km)
- Flights per week: around 11 departures on average
- Typical fares (one-way): economy tickets often range from $255–$1045, depending on seasonality and how far ahead you book
Flights from Dublin Airport (DUB) to O'Hare International Airport (ORD)
Based on the latest traveler bookings, here are the top airlines flying from Dublin to Chicago, favored for their non-stop and one-stop options. Popular layover locations include Keflavik International Airport (KEF) with a 2-hour and 30-minute stop, Heathrow Airport (LHR) with a 2-hour layover, and Philadelphia International Airport (PHL), also featuring a 2-hour layover. These choices allow you to tailor your itinerary by balancing price, total travel time, and cabin class to find the best fit for your journey.
- Aer Lingus: This full-service airline provides non-stop flights, with one-way ticket prices generally falling between $255 and $1060. It operates around 45% of the flights on this route, with an overall travel duration of 8 hours and 30 minutes.
- American Airlines: Offering both non-stop and one-stop options, this full-service carrier has one-way fares ranging from $350 to $2115. It accounts for about 24% of route departures, with a non-stop journey time of 8 hours and 30 minutes.
- Icelandair: A full-service airline providing one-stop flights, its one-way fares vary from $400 to $1235. This carrier makes up approximately 9% of departures on this route, featuring an in-flight duration of 10 hours and a total travel time of around 12 hours, including layover.
- Iberia: This full-service airline offers non-stop services, with typical one-way fares ranging between $530 and $895. It accounts for roughly 7% of departures on this route, with a total journey time of 8 hours and 30 minutes.
- British Airways: Providing both non-stop and one-stop options, this full-service carrier has one-way fares that usually range from $435 to $960. It covers about 6% of the departures on this route, with an in-flight time of around 10 hours and a total journey duration of approximately 12 hours.
Travelers have the option to upgrade their flight from Dublin to Chicago. Leading airlines offering Business Class include American Airlines, Icelandair, and Aer Lingus, providing enhanced service and seating for a more comfortable journey.
Best time to fly from Dublin (DUB) to Chicago (ORD)
The most popular months for travelers flying from Dublin to Chicago are July, August, and September, when peak temperatures in Chicago reach up to 73.4°F in July. If you prefer quieter travel, consider February, the least busy time to visit with temperatures around 27°F and typically the lowest average one-way fare (around $544). Flight availability peaks in July, with approximately 13 flights per week, making it easier to find convenient departure times. April has the fewest flights, with approximately 8 flights per week.
- Cheapest time to fly: February usually offers good deals with average one-way fare around $544, roughly 26% cheaper than the yearly average.
- Another budget-friendly time to fly: April typically offers an average one-way fare of around $558.
- Most flight options: July has the highest number of flights from Dublin to Chicago, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 25.7°F (-3.5°C) | Average | 9 | $911 |
| February | 27.0°F (-2.8°C) | Moderately Low | 9 | $544 |
| March | 37.0°F (2.8°C) | Average | 11 | $714 |
| April | 46.0°F (7.8°C) | Average | 8 | $558 |
| May | 57.0°F (13.9°C) | Average | 12 | $737 |
| June | 67.3°F (19.6°C) | Average | 12 | $735 |
| July | 73.4°F (23.0°C) | Moderately High | 13 | $723 |
| August | 73.0°F (22.8°C) | Moderately High | 12 | $935 |
| September | 67.1°F (19.5°C) | Moderately High | 12 | $713 |
| October | 54.9°F (12.7°C) | Average | 12 | $735 |
| November | 42.3°F (5.7°C) | Moderately Low | 9 | $836 |
| December | 33.1°F (0.6°C) | Moderately Low | 9 | $795 |
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.
Alternative routes from Dublin (DUB) to Chicago (ORD)
How to find the best prices for flights from Dublin (DUB) to Chicago (ORD)
Getting some of the best deals on flights from Dublin to Chicago is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually found when booking within two weeks, although most travelers book at least two months in advance. Morning departures (5 AM to 12 PM) tend to offer lower prices, while afternoon flights (12 PM to 6 PM) are the most popular. Additionally, flying on Thursday generally provides cheaper options, even though Sunday remains the most favored travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at O'Hare International Airport from Dublin Airport
Chicago welcomes travelers from Dublin with a range of transport options based on price, convenience, and proximity. For departures, Dublin Airport is roughly a 15-minute drive (covering about 8 miles) from central Dublin. Here's how to reach Chicago efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Chicago, with private rides that can be arranged in advance.
- Car rental: Renting a car from O'Hare International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at O'Hare International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From O'Hare International Airport, O'Hare Station, a metro station, is located about 0.1 miles away on foot, while Rosemont Station, a train station, is about 2.2 miles away by car, providing convenient transport options for travelers.
Dublin to Chicago Flights
The cheapest times to fly from Dublin to Chicago
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dublin to Chicago are during the month of September. You can find some of the cheapest flights from Dublin to Chicago with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Dublin to Chicago
Sunday is one of the best days to book for cheap flights from Dublin to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Dublin to Chicago
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dublin to Chicago in 2026. You can also book with separate airlines for your outbound and return journeys, from $410 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dublin to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Dublin to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) cost?
You can find cheap one-way flights from $410 and cheap return flights $143 Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) with Expedia. One-way flights generally range between $590 and $4033, and roundtrip flights usually range from $625 to $4737. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
The cheapest month to fly from DUB to ORD is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
Choose from 3 airlines operating direct flights from DUB to ORD:
- Aer Lingus operates around 13 direct flights from DUB to ORD every week
- United operates around 7 direct flights from DUB to ORD every week
- American Airlines operates around 7 direct flights from DUB to ORD every week
What is the cheapest airline that flies from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
KLM is one of the cheapest airlines offering connecting flights from Dublin (DUB) to O'Hare Intl. (ORD), with round-trip tickets starting from around $520 with a layover in Schiphol (AMS). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
To find a cheap flight from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
The best airline to fly with from Dublin (DUB) to Chicago, IL (ORD) will differ from traveler to traveler. If you like to fly early, Aer Lingus offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. Aer Lingus offers the most daily flights from DUB to ORD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
On average, there are around 3 nonstop flights per day from (DUB) to O'Hare Intl. (ORD). For more options, look at flights that include layovers.
What is the earliest flight from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
The earliest flight from Dublin (DUB) to Chicago O'Hare International Airport (ORD) usually leaves at around 4:15 AM, operated by TAP Portugal. This service is seasonal, running from January to March and again in October to December, giving you an early start to your travel day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
The most popular departure times for flights from Dublin (DUB) to Chicago, IL (ORD) are in the late morning, from 9am to 12pm. About 51% of passengers choose this time window. Many major carriers, including United and Aer Lingus, offer flights during this period. This timing works well because it allows travelers to enjoy a leisurely morning before their flight.
How long does it take to fly from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
Flying nonstop from DUB to ORD takes around 8 hours 30 minutes, with the route covering approximately 3,664 miles. Flights with a layover typically take 3 hours 50 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
You can fly business class between DUB and ORD. Airlines that offer business class service on this route include:
- Aer Lingus
- Turkish Airlines
- Lufthansa
- British Airways
- United Airlines
- Icelandair
- Air Canada
- Air France
- American Airlines
- Swiss International Air Lines
How much is a business class flight from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
A direct, return business class ticket from Dublin (DUB) to Chicago, IL (ORD) typically costs between $7,846 - $13,688. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) if you opt for a connecting flight.
*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) flight with Expedia?
It's easy to earn miles on a Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chicago from DUB (DUB)?
From DUB (DUB), you can fly into O'Hare Intl. (ORD) to reach Chicago. Some flights may connect through major hubs like Heathrow (LHR), Frankfurt Intl. (FRA), Liberty Intl. (EWR) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) at the last minute?
Typically, booking a last minute flight from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package?
Securing a Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) Chicago Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.)?
If you booked your Dublin (DUB) to Chicago, IL (ORD-O'Hare Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | Dublin Airport |
|---|---|
Destination airport | Chicago O'Hare Intl. Airport |
Distance | 3,664 miles away |
Airlines serving | Brussels Airlines, Lufthansa, British Airways, Iberia, Aer Lingus, Icelandair, KLM, Swiss International Air Lines, Air Canada, Air France, American Airlines, SAS, United, Delta, TAP Portugal, Finnair, Turkish Airlines, JetBlue Airways, Egyptair, Singapore Airlines, WestJet |
Popular airline | Brussels Airlines |
Roundtrip price | $143 |
Average flight time | 8 hours 15 mins |