Cheap flights from Dublin to Illinois from £280
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Illinois departing on 29/10. 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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How to get the cheapest flight ticket from Dublin to Illinois
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 Illinois?
The month of November is, on average, the cheapest month to fly to Illinois from Dublin, with most prices found around £375. If you aren’t able to travel to Illinois during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £382.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart on your flight to Illinois is on a Tuesday when prices can be found for as low as £516. This is often the case because there is less demand to fly during this day of the week. Flights from Dublin to Illinois on a Saturday will generally be more expensive and average around £608. 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 Illinois?
Our data shows that the cheapest Dublin to Illinois flights are usually those with departure times in the evening. Our users have found flights to Illinois in the evening for as low as £475. At midday is when there is more demand to fly to Illinois, so prices are often more expensive at around £596 per ticket.
What is the cheapest Dublin to Illinois flight route?
Fly from Dublin to Chicago O'Hare Intl for the best Dublin - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Dublin when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around £442 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Dublin for as low as £371 on momondo.
What cabin class options are available on Dublin to Illinois flights?
There are 3 cabin classes available to choose from on Dublin to Illinois 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 Dublin to Illinois?
Icelandair, TAP AIR PORTUGAL, and WestJet are the most popular carriers operating from Dublin to Illinois
Which airlines fly to Illinois?
Aer Lingus, Finnair and British Airways are the top three most popular airlines that fly to Illinois from Dublin according to our data. Aer Lingus is the first choice among our users, with 75% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Dublin to Illinois on average per day?
17 flights are operational daily from Dublin to Illinois as of June 2025. The most popular departure time for this route is 11:00, with 52% of flights per day taking off in the afternoon.
How many flights depart from Dublin to Illinois on average per week?
As of June 2025, there are 123 flights per week flying from Dublin to Illinois. The most common day of the week flights depart is Thu, with 15% of flights taking off on this day.
Cheap Dublin to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Dublin to Illinois
When did momondo last update prices for flights from Dublin Airport to Illinois?
Prices for flights from Dublin Airport to Illinois refresh daily.
How many operators does momondo search for flights from Dublin Airport to Illinois?
There are 6 operators available for flights from Dublin Airport to Illinois as of June 2025.
How old do you have to be to fly from Dublin Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois 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 Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Dublin to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Dublin to Illinois is Boeing 787-8 Dreamliner (34.72% of total bookings). The next most popular plane models are Boeing 787 Dreamliner (23.84%), Airbus A330-300 (20.82%), and Airbus A330 (8.68%).
Best airlines flying from Dublin to Illinois
Compare and see reviews for airlines that fly from Dublin to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £255 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom £285 | Free Cancellation | Rating 6.6 7,011 reviews | |||
| PriceFrom £288 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom £304 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom £363 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £372 | Free Cancellation | Rating 7.0 2,776 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Dublin to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Illinois for you.
Can I find flights from Dublin to Illinois with flexible booking policies on momondo?
momondo does allow users to show only those flights to Illinois from Dublin which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Dublin to Illinois?
Once you have performed a search for Dublin to Illinois flights, momondo helps you find the right one 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 from Dublin to Illinois right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Illinois from Dublin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.