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Cheap flights from Dublin to Illinois from £327

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Dublin to Illinois

Keep the following information in mind while searching for Dublin to Illinois flight deals. Data was last updated 15 October 2025.

Round-trip from

£347

One-way from

£328

Popular in

July

Cheapest in

September

Average price

£452

Good round-trip deal

£410 or less

Good one-way deal

£352 or less
Aer Lingus
  • Aer Lingus
  • 12/11-19/11
  • Nonstop
  • 15h 50m total
  • Dublin to Illinois
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28/12
  • 28/12
  • 1 total stop
  • 15h 07m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Illinois.
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Price to beat on a one-way flight from Dublin to Illinois.
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Find flight deals from Dublin to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Illinois
Explore the most affordable flight options available from Dublin to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Wed 24/1211:30DUB - ORD
1 stop11h 49mMultiple Airlines
Wed 14/120:45ORD - DUB
1 stop11h 20mMultiple Airlines
Deal found 11/10£343
Mon 22/1212:55DUB - ORD
1 stop14h 24mMultiple Airlines
Thu 15/120:45ORD - DUB
1 stop11h 25mMultiple Airlines
Deal found 12/10£346
Wed 12/1111:30DUB - ORD
Nonstop8h 30mAer Lingus
Wed 19/1115:50ORD - DUB
Nonstop7h 20mAer Lingus
Deal found 13/10£347
Sun 7/1209:00DUB - ORD
1 stop16h 30mUnited Airlines
Mon 22/1209:00ORD - DUB
1 stop19h 20mUnited Airlines
Deal found 14/10£348
Mon 20/1016:40DUB - ORD
Nonstop8h 20mAer Lingus
Mon 27/1020:40ORD - DUB
Nonstop7h 20mAer Lingus
Deal found 13/10£349
Wed 29/1019:05DUB - ORD
1 stop28h 40mScandinavian Airlines
Mon 3/1119:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 12/10£349
Fri 7/1115:20DUB - ORD
Nonstop8h 35mAer Lingus
Wed 12/1115:50ORD - DUB
Nonstop7h 20mAer Lingus
Deal found 13/10£351
Wed 24/1213:10DUB - ORD
1 stop11h 35mAmerican Airlines
Tue 6/117:26ORD - DUB
1 stop9h 14mAmerican Airlines
Deal found 13/10£352
Tue 23/1210:40DUB - ORD
Nonstop8h 50mLufthansa
Wed 7/118:35ORD - DUB
Nonstop7h 35mLufthansa
Deal found 14/10£352
Tue 23/1212:30DUB - ORD
1 stop34h 15mScandinavian Airlines
Wed 7/119:20ORD - DUB
1 stop34h 25mScandinavian Airlines
Deal found 13/10£353
Wed 5/1105:55DUB - ORD
1 stop14h 25mDelta
Tue 9/1210:36ORD - DUB
2 stops15h 14mDelta
Deal found 14/10£354
Mon 3/1108:50DUB - ORD
1 stop11h 30mDelta
Sun 9/1117:20ORD - DUB
1 stop16h 25mDelta
Deal found 13/10£355

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 October 2025.
Use the filters below to find and compare flights from Dublin to Illinois that are best for you.

Fly from

Dublin

Fly to

Illinois

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 24/12

11:30-17:19

1 stop11h 49m

Chicago O'Hare Intl

Sat 17/1

20:45-15:00

1 stop12h 15m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 24/12

11:30-17:19

1 stop11h 49m

Chicago O'Hare Intl

Wed 14/1

20:45-14:05

1 stop11h 20m

£343

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 12/2

10:40-13:30

Nonstop8h 50m

Chicago O'Hare Intl

Thu 26/2

18:16-10:20

1 stop10h 04m

£352

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 7/11

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Wed 12/11

17:20-15:45

1 stop16h 25m

£355

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 23/12

20:40-13:50

1 stop23h 10m

Chicago O'Hare Intl

Fri 9/1

16:33-15:05

2 stops16h 32m

£355

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 23/12

20:40-13:50

1 stop23h 10m

Chicago O'Hare Intl

Sat 10/1

21:45-18:40

1 stop14h 55m

£355

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 24/12

08:50-18:45

1 stop15h 55m

Chicago O'Hare Intl

Thu 8/1

21:45-14:50

1 stop11h 05m

£355

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 7/11

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Wed 12/11

17:08-12:40

2 stops13h 32m

£358

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/11

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Wed 19/11

10:35-08:05

2 stops15h 30m

£359

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 14/2

08:50-20:38

2 stops17h 48m

Chicago O'Hare Intl

Wed 18/2

10:40-07:50

2 stops15h 10m

£359

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 38 results
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Best time to book a flight from Dublin to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Illinois

What is the cheapest month to book a flight from Dublin to Illinois?

Currently, February is the cheapest month in which you can book a flight from Dublin to Illinois (average of £294). Flying from Dublin to Illinois in July is currently the most expensive (average of £467). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DUB to IL?

Find hourly flight availability from Dublin to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.

When flying from Dublin to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Dublin to Illinois

Explore weekly flight availability from Dublin to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 October 2025.

The most flights from DUB to USIL are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost for a return flight from Dublin to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 15 October 2025.
Read through reviews of airlines operating flights from Dublin to Illinois, such as Finnair, United Airlines, andAer Lingus. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Comfort

7.4

Overall

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,332 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Comfort

7.4

Overall

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
8,975 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Comfort

7.4

Overall

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Aer Lingus
7.2
Good
1,336 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Comfort

7.4

Overall

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Icelandair
7.0
Good
556 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Comfort

7.4

Overall

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,454 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Boarding

7.6

Comfort

7.4

Overall

7.6

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dublin to Illinois?

    For a flight from Dublin to Illinois, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city.

  • How long is the flight from Dublin to Illinois?

    United Airlines, Delta, and British Airways can get you from Dublin to Illinois in just under 8h 50m. Your travel time can differ by up to 14h 20m. There are 3661 mi between Dublin and Illinois. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Dublin to Illinois?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Dublin to Illinois on time: American Airlines (79%), Aer Lingus (79%), Iberia (78%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £330. While the most popular route (Dublin - Chicago O'Hare Intl) can be booked for £349 on average, our data indicates £992 when flying from Dublin to Illinois.

  • Can I find deals for flights from Dublin to Illinois that include hotel bookings?

    Yes. In addition to deals on Dublin to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Illinois.

  • Can I find deals for business class flights from Dublin to Illinois?

    Yes. Cheapflights offers flight deals from Dublin to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Dublin to Illinois (average of £294). Flying from Dublin to Illinois in July is currently the most expensive (average of £467). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Dublin to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Dublin to Illinois

Discover the top 6 airlines that operate flights from Dublin to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£243Average£361FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£302Average£490FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£318Average£553FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£346Average£472FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£357Average£631FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£457Average£572FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Illinois?

Deals for Dublin to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Dublin to Illinois?

Millions of users choose and trust Cheapflights to book the best flight deals from Dublin to Illinois for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Dublin to Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Illinois flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Dublin to Illinois become cheaper?

Yes! Start tracking prices for Dublin to Illinois flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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