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Cheap flights from Dublin to Illinois from £310

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
29 Mar — 5 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 27 February 2026.

Thu 16/419:05
DUB
-
ORD
1 stop27h 05m
Scandinavian Airlines
Mon 20/419:15
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Deal found 25/2£320
Sat 9/509:30
DUB
-
ORD
Nonstop8h 00m
Multiple Airlines
Sun 10/522:30
ORD
-
DUB
1 stop11h 50m
Multiple Airlines
Deal found 25/2£323
Wed 20/509:30
DUB
-
ORD
Nonstop8h 00m
Multiple Airlines
Wed 10/622:35
ORD
-
DUB
1 stop13h 25m
Multiple Airlines
Deal found 24/2£323
Sat 9/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Sun 10/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 25/2£329
Thu 14/520:20
DUB
-
ORD
1 stop22h 05m
Multiple Airlines
Fri 22/522:25
ORD
-
DUB
Nonstop7h 25m
Multiple Airlines
Deal found 24/2£335
Thu 9/409:30
DUB
-
ORD
1 stop16h 27m
Multiple Airlines
Thu 16/422:30
ORD
-
DUB
1 stop14h 50m
Multiple Airlines
Deal found 23/2£337
Mon 13/409:30
DUB
-
ORD
1 stop16h 27m
Multiple Airlines
Mon 20/422:30
ORD
-
DUB
1 stop14h 10m
Multiple Airlines
Deal found 27/2£338
Thu 16/409:30
DUB
-
ORD
1 stop16h 27m
Multiple Airlines
Thu 23/422:30
ORD
-
DUB
1 stop13h 25m
Multiple Airlines
Deal found 24/2£340
Fri 22/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Tue 2/611:40
ORD
-
DUB
1 stop16h 05m
Finnair
Deal found 27/2£343
Fri 15/509:30
DUB
-
ORD
Nonstop8h 00m
Finnair
Mon 25/522:25
ORD
-
DUB
Nonstop7h 25m
Finnair
Deal found 24/2£346
Tue 17/305:55
DUB
-
MDW
2 stops17h 45m
Delta
Sun 22/314:05
MDW
-
DUB
1 stop12h 40m
Delta
Deal found 26/2£438
Wed 1/405:55
DUB
-
MDW
2 stops17h 59m
Delta
Mon 6/414:05
MDW
-
DUB
1 stop11h 50m
Delta
Deal found 23/2£441

Find flight deals from Dublin to Illinois

Keep the following information in mind while searching for Dublin to Illinois flight deals. Data was last updated 27 February 2026.

Round-trip from

£320

One-way from

£310

Popular in

July

Cheapest in

November

Average price

£462

Good round-trip deal

£536 or less

Good one-way deal

£438 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 16/4-20/4
  • 2 total stops
  • 44h 10m total
  • Dublin to Illinois
Search Deals
Finnair
  • Finnair
  • 14/5
  • Nonstop
  • 8h 00m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Dublin to Illinois.
Search Deals
Price to beat on a one-way flight from Dublin to Illinois.
Search Deals

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 27 February 2026.
Use the filters below to find and compare flights from Dublin to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 13/4

09:30-19:57

1 stop16h 27m

Chicago O'Hare Intl

Mon 20/4

22:30-18:40

1 stop14h 10m

£338

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 27/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sun 7/6

22:25-11:50

Nonstop7h 25m

£347

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 16/4

11:40-16:10

2 stops34h 30m

Chicago O'Hare Intl

Mon 20/4

19:15-10:10

2 stops32h 55m

£375

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 16/4

08:55-18:36

2 stops15h 41m

Chicago Midway

Mon 20/4

14:12-07:55

1 stop11h 43m

£441

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 6/6

05:55-14:57

2 stops15h 02m

Chicago O'Hare Intl

Sun 21/6

07:10-08:45

1 stop19h 35m

£441

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 22/4

05:55-17:58

2 stops18h 03m

Chicago Midway

Sun 26/4

09:27-09:15

2 stops17h 48m

£441

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 22/5

09:20-16:59

1 stop13h 39m

Chicago O'Hare Intl

Mon 1/6

16:00-11:10

2 stops13h 10m

£442

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 1/4

08:55-19:49

2 stops16h 54m

Chicago O'Hare Intl

Mon 6/4

13:57-10:25

2 stops14h 28m

£442

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 25/3

09:30-16:13

1 stop11h 43m

Chicago O'Hare Intl

Tue 7/4

10:00-07:20

2 stops15h 20m

£444

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 23/3

12:05-23:44

1 stop16h 39m

Chicago O'Hare Intl

Mon 30/3

20:15-09:45

Nonstop7h 30m

£444

Flights are sorted by cheapest return flights first.

Deals found on 24/2

Showing 1-10 of 35 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Dublin to Illinois (average of £314). Flying from Dublin to Illinois in July is currently the most expensive (average of £474). 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 27 February 2026.

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 27 February 2026.

The most flights from DUB to USIL are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 27 February 2026.
Read through reviews of airlines operating flights from Dublin to Illinois, such as United Airlines, Aer Lingus, andBrussels Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,362 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,362 reviews
United Airlines
7.4
Good
9,362 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Aer Lingus
7.2
Good
1,464 reviews
United Airlines
7.4
Good
9,362 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Brussels Airlines
7.2
Good
387 reviews
United Airlines
7.4
Good
9,362 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Icelandair
7.1
Good
617 reviews
United Airlines
7.4
Good
9,362 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
British Airways
6.7
Okay
7,772 reviews
United Airlines
7.4
Good
9,362 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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?

    Finnair, Scandinavian Airlines, and Delta can get you from Dublin to Illinois in just under 8h. Your travel time can differ by up to 26h 30m. 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: Austrian Airlines (85%), Brussels Airlines (85%), United Airlines (85%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £346. While the most popular route (Dublin - Chicago O'Hare Intl) can be booked for £531 on average, our data indicates £1,012 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, March is the cheapest month in which you can book a flight from Dublin to Illinois (average of £314). Flying from Dublin to Illinois in July is currently the most expensive (average of £474). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Dublin to Illinois

Discover the top 4 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 27 February 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£297Average£338FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£322Average£431FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£343Average£481FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£353Average£640FlexibilityNo cancel feeOn-time69%
Search United 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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