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Cheap flights from Dublin to Illinois from £320

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
8 Feb — 15 Feb1
1 adult
1 adult, Economy, 0 bags

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 9 January 2026.

Round-trip from

£326

Popular in

July

Cheapest in

September

Average price

£438

Good round-trip deal

£498 or less

Good one-way deal

£518 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/4-27/4
  • 4 total stops
  • 83h 15m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£53 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 January 2026
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 9 January 2026.

Thu 5/212:30DUB - ORD
1 stop34h 15mScandinavian Airlines
Thu 12/219:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 6/1£320
Tue 13/1012:40DUB - ORD
1 stop33h 30mScandinavian Airlines
Fri 16/1019:15ORD - DUB
1 stop17h 05mScandinavian Airlines
Deal found 6/1£323
Mon 20/419:50DUB - ORD
2 stops50h 20mScandinavian Airlines
Mon 27/419:15ORD - DUB
2 stops32h 55mScandinavian Airlines
Deal found 8/1£326
Thu 5/219:05DUB - ORD
1 stop27h 40mScandinavian Airlines
Mon 9/219:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 7/1£338
Tue 3/211:30DUB - ORD
2 stops35h 15mScandinavian Airlines
Mon 16/219:20ORD - DUB
2 stops33h 25mScandinavian Airlines
Deal found 7/1£340
Tue 21/419:05DUB - ORD
1 stop27h 05mScandinavian Airlines
Mon 27/419:15ORD - DUB
1 stop17h 05mScandinavian Airlines
Deal found 8/1£341
Tue 3/208:50DUB - MDW
2 stops15h 05mMultiple Airlines
Tue 10/218:35MDW - DUB
2 stops15h 10mMultiple Airlines
Deal found 8/1£390
Wed 18/205:55DUB - MDW
2 stops18h 45mDelta
Wed 25/212:45MDW - DUB
1 stop13h 00mDelta
Deal found 8/1£392
Sun 18/105:55DUB - MDW
2 stops17h 39mDelta
Mon 26/113:26MDW - DUB
2 stops20h 19mDelta
Deal found 8/1£396
Thu 22/105:55DUB - MDW
2 stops18h 00mDelta
Mon 26/113:26MDW - DUB
2 stops20h 19mDelta
Deal found 6/1£396
Fri 6/205:55DUB - MDW
2 stops18h 41mDelta
Sun 15/213:29MDW - DUB
2 stops20h 16mDelta
Deal found 7/1£397
Thu 15/105:55DUB - MDW
2 stops18h 37mDelta
Sat 24/110:46MDW - DUB
2 stops15h 59mDelta
Deal found 8/1£399

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 9 January 2026.
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

Thu 5/2

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Mon 9/2

19:20-18:20

1 stop17h 00m

£338

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 24/4

12:40-16:10

1 stop33h 30m

Chicago O'Hare Intl

Wed 29/4

19:15-18:20

1 stop17h 05m

£341

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 3/2

05:00-15:20

1 stop16h 20m

Chicago O'Hare Intl

Tue 10/2

18:35-08:10

Nonstop7h 35m

£381

DublinChicago

DUB - MDW

DUBMDW

Dublin

Tue 3/2

08:50-17:55

2 stops15h 05m

Chicago Midway

Tue 10/2

18:35-15:45

2 stops15h 10m

£390

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 18/2

05:55-18:40

2 stops18h 45m

Chicago Midway

Wed 25/2

12:45-07:45

1 stop13h 00m

£392

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 3/2

17:15-14:20

1 stop27h 05m

Chicago O'Hare Intl

Tue 10/2

10:29-07:50

2 stops15h 21m

£392

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 3/2

10:40-13:30

Nonstop8h 50m

Chicago O'Hare Intl

Tue 10/2

18:35-08:10

Nonstop7h 35m

£395

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sun 18/1

05:55-17:34

2 stops17h 39m

Chicago Midway

Mon 26/1

13:26-15:45

2 stops20h 19m

£396

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 6/2

05:55-18:36

2 stops18h 41m

Chicago Midway

Sun 15/2

13:29-15:45

2 stops20h 16m

£397

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sun 1/2

05:55-17:55

2 stops18h 00m

Chicago Midway

Tue 10/2

18:35-15:45

2 stops15h 10m

£397

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 34 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, March is the cheapest month in which you can book a flight from Dublin to Illinois (average of £298). Flying from Dublin to Illinois in July is currently the most expensive (average of £473). 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 9 January 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 9 January 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 9 January 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
9,143 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,143 reviews
United Airlines
7.4
Good
9,143 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Aer Lingus
7.2
Good
1,429 reviews
United Airlines
7.4
Good
9,143 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Brussels Airlines
7.2
Good
380 reviews
United Airlines
7.4
Good
9,143 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Icelandair
7.1
Good
593 reviews
United Airlines
7.4
Good
9,143 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
British Airways
6.7
Okay
7,659 reviews
United Airlines
7.4
Good
9,143 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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?

    Scandinavian Airlines and Delta can get you from Dublin to Illinois in just under 18h 45m. Your travel time can differ by up to 8h 55m. There are 3664 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 (87%), Aer Lingus (87%), Iberia (87%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £347. While the most popular route (Dublin - Chicago O'Hare Intl) can be booked for £339 on average, our data indicates £995 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 £298). Flying from Dublin to Illinois in July is currently the most expensive (average of £473). 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 9 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£240Average£339FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£299Average£432FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£315Average£463FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£343Average£496FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£354Average£621FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£452Average£504FlexibilityNo 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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