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Cheap flights from Dublin to Illinois from £390

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

£392

Popular in

July

Cheapest in

November

Average price

£484

Good round-trip deal

£468 or less

Good one-way deal

£567 or less
Delta
  • Delta
  • 30/8-3/9
  • 4 total stops
  • 29h 49m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£53 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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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

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 13 June 2025.

Wed 29/1011:30DUB - ORD
2 stops35h 15mScandinavian Airlines
Tue 4/1111:00ORD - DUB
2 stops18h 45mScandinavian Airlines
Deal found 11/6£390
Wed 3/1208:50DUB - ORD
2 stops18h 56mDelta
Tue 9/1213:35ORD - DUB
2 stops17h 05mDelta
Deal found 12/6£391
Wed 27/805:55DUB - MDW
2 stops18h 42mDelta
Sun 31/818:17MDW - DUB
1 stop9h 43mDelta
Deal found 12/6£392
Sun 21/1218:30DUB - ORD
1 stop25h 25mBritish Airways
Tue 30/1217:00ORD - DUB
1 stop13h 05mBritish Airways
Deal found 11/6£394
Tue 12/809:20DUB - ORD
1 stop11h 35mUnited Airlines
Sat 27/920:20ORD - DUB
Nonstop7h 25mUnited Airlines
Deal found 12/6£395
Tue 22/709:30DUB - ORD
2 stops14h 20mAmerican Airlines
Tue 19/821:15ORD - DUB
1 stop13h 50mAmerican Airlines
Deal found 12/6£403
Fri 14/1109:45DUB - MDW
1 stop17h 59mKLM
Mon 17/1113:05MDW - DUB
1 stop12h 40mKLM
Deal found 12/6£403
Thu 2/1007:30DUB - ORD
1 stop12h 25mAer Lingus
Thu 23/1015:45ORD - DUB
Nonstop7h 25mAer Lingus
Deal found 12/6£405
Mon 11/808:55DUB - ORD
1 stop11h 15mKLM
Tue 30/916:20ORD - DUB
1 stop12h 05mKLM
Deal found 12/6£406
Fri 19/1211:30DUB - ORD
1 stop11h 50mIcelandair
Tue 30/1218:30ORD - DUB
1 stop9h 45mIcelandair
Deal found 11/6£419
Fri 11/709:30DUB - ORD
1 stop16h 52mMultiple Airlines
Fri 18/716:36ORD - DUB
2 stops17h 44mMultiple Airlines
Deal found 11/6£421
Sat 27/913:45DUB - ORD
Nonstop8h 00mFinnair
Wed 8/1013:23ORD - DUB
1 stop14h 22mFinnair
Deal found 12/6£431

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 13 June 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

Sat 30/8

05:55-15:04

2 stops15h 09m

Chicago O'Hare Intl

Wed 3/9

18:20-15:00

2 stops14h 40m

£392

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 27/8

05:55-18:37

2 stops18h 42m

Chicago Midway

Sun 31/8

18:17-10:00

1 stop9h 43m

£392

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 12/8

09:20-14:55

1 stop11h 35m

Chicago O'Hare Intl

Sat 27/9

20:20-09:45

Nonstop7h 25m

£395

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 22/7

09:30-17:50

2 stops14h 20m

Chicago O'Hare Intl

Tue 19/8

21:15-17:05

1 stop13h 50m

£403

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 11/8

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Tue 30/9

16:20-10:25

1 stop12h 05m

£406

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 15/7

09:30-16:53

1 stop13h 23m

Chicago O'Hare Intl

Wed 13/8

10:26-05:30

1 stop13h 04m

£419

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 12/8

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Mon 29/9

15:45-05:10

Nonstop7h 25m

£420

DublinChicago

DUB - MDW

DUBMDW

Dublin

Tue 12/8

11:00-17:47

1 stop12h 47m

Chicago Midway

Tue 30/9

13:05-08:45

1 stop13h 40m

£422

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 27/8

20:15-16:10

2 stops25h 55m

Chicago O'Hare Intl

Sun 31/8

19:15-20:20

2 stops19h 05m

£437

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sat 26/7

10:00-18:40

1 stop14h 40m

Chicago Midway

Sat 2/8

13:09-08:15

2 stops13h 06m

£466

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 29 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, January is the cheapest month in which you can book a flight from Dublin to Illinois (average of £595). Flying from Dublin to Illinois in July is currently the most expensive (average of £843). 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 13 June 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 13 June 2025.

The most flights from DUB to USIL are scheduled on a Thursday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 13 June 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Austrian Airlines from Dublin to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Dublin to Illinois one-way?

    The cheapet airlines for a one-way flight from Dublin to Illinois are WestJet (£395), JetBlue (£405), and Finnair (£419).

  • 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 (82%), Aer Lingus (82%), British Airways (82%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £378. While the most popular route (Dublin - Chicago O'Hare Intl) can be booked for £419 on average our data indicates £1,291 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, January is the cheapest month in which you can book a flight from Dublin to Illinois (average of £595). Flying from Dublin to Illinois in July is currently the most expensive (average of £843). 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

Browse thousands of different options on Cheapflights for your next trip

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£255Average£399FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£285Average£501FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£288Average£527FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£304Average£438FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£363Average£542FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£372Average£557FlexibilityNo cancel feeOn-time77%
Search Iberia 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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