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Cheap flights from Dublin to Illinois from £235

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
17 May — 24 May1
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 17 April 2026.

Sun 10/511:30
DUB
-
ORD
1 stop26h 14m
JetBlue
Wed 13/508:35
ORD
-
DUB
1 stop18h 25m
JetBlue
Deal found 13/4£432
Fri 8/511:30
DUB
-
ORD
1 stop26h 14m
JetBlue
Sun 17/506:00
ORD
-
DUB
1 stop20h 20m
JetBlue
Deal found 14/4£437
Thu 17/1220:40
DUB
-
ORD
1 stop23h 10m
British Airways
Mon 28/1217:10
ORD
-
DUB
1 stop13h 25m
British Airways
Deal found 13/4£444
Tue 21/414:15
DUB
-
ORD
1 stop10h 00m
Icelandair
Sun 26/419:25
ORD
-
DUB
1 stop11h 50m
Icelandair
Deal found 13/4£446
Sun 1/1110:45
DUB
-
ORD
1 stop14h 00m
British Airways
Mon 30/1121:45
ORD
-
DUB
1 stop13h 20m
British Airways
Deal found 16/4£446
Wed 26/812:15
DUB
-
ORD
1 stop15h 10m
Icelandair
Tue 15/919:25
ORD
-
DUB
1 stop9h 40m
Icelandair
Deal found 15/4£449
Fri 8/511:30
DUB
-
ORD
1 stop26h 14m
JetBlue
Mon 18/507:20
ORD
-
DUB
1 stop19h 00m
JetBlue
Deal found 16/4£451
Tue 8/914:15
DUB
-
ORD
1 stop13h 10m
Icelandair
Tue 22/919:25
ORD
-
DUB
1 stop9h 40m
Icelandair
Deal found 16/4£452
Wed 22/412:15
DUB
-
ORD
1 stop12h 00m
Icelandair
Sun 26/419:25
ORD
-
DUB
1 stop11h 50m
Icelandair
Deal found 13/4£455
Thu 22/1014:15
DUB
-
ORD
1 stop10h 00m
Icelandair
Mon 26/1019:30
ORD
-
DUB
1 stop9h 45m
Icelandair
Deal found 16/4£458
Sun 7/609:30
DUB
-
ORD
Nonstop8h 00m
British Airways
Mon 15/619:05
ORD
-
DUB
1 stop10h 55m
British Airways
Deal found 17/4£459
Sun 20/1210:45
DUB
-
ORD
1 stop12h 20m
American Airlines
Sat 26/1216:51
ORD
-
DUB
1 stop9h 39m
American Airlines
Deal found 13/4£460

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 17 April 2026.

Round-trip from

£432

One-way from

£235

Popular in

August

Cheapest in

September

Average price

£463

Good round-trip deal

£558 or less

Good one-way deal

£493 or less
JetBlue
  • JetBlue
  • 10/5-13/5
  • 2 total stops
  • 44h 39m total
  • Dublin to Illinois
Search Deals
JetBlue
  • JetBlue
  • 30/5
  • 1 total stop
  • 28h 24m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 17 April 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

Cheapest return flight

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 7/5

10:40-20:53

1 stop16h 13m

Chicago O'Hare Intl

Mon 11/5

09:49-08:20

1 stop16h 31m

£458
Fastest return journey

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 22/5

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Sun 24/5

22:20-11:50

Nonstop7h 30m

£473

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 14/5

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Thu 14/5

21:00-10:35

Nonstop7h 35m

£482

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 1/6

05:55-14:57

2 stops15h 02m

Chicago O'Hare Intl

Mon 8/6

08:36-07:55

1 stop17h 19m

£496

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 8/6

05:55-19:31

2 stops19h 36m

Chicago O'Hare Intl

Sat 20/6

17:22-10:00

1 stop10h 38m

£496

DublinChicago

DUB - MDW

DUBMDW

Dublin

Fri 8/5

05:55-17:56

2 stops18h 01m

Chicago Midway

Mon 18/5

09:22-09:15

1 stop17h 53m

£497

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 15/6

05:55-16:26

2 stops16h 31m

Chicago O'Hare Intl

Mon 29/6

13:46-08:45

1 stop12h 59m

£498

DublinChicago

DUB - MDW

DUBMDW

Dublin

Mon 15/6

05:55-18:18

2 stops18h 23m

Chicago Midway

Mon 29/6

13:49-09:15

2 stops13h 26m

£498

DublinChicago

DUB - MDW

DUBMDW

Dublin

Sat 13/6

05:55-17:54

2 stops17h 59m

Chicago Midway

Sat 27/6

13:16-10:00

1 stop14h 44m

£498

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 14/5

20:20-18:15

1 stop27h 55m

Chicago O'Hare Intl

Fri 22/5

19:05-17:50

1 stop16h 45m

£515

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 39 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, September is the cheapest month in which you can book a flight from Dublin to Illinois (average of £201). Flying from Dublin to Illinois in July is currently the most expensive (average of £387). 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 17 April 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 17 April 2026.

The most flights from DUB to USIL are scheduled on a Thursday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 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 17 April 2026.
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
7.7
Good
1,389 reviews
Check prices

Overall

7.7

Boarding

7.7

Comfort

7.4

Crew

8.2

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
7.7
Good
1,389 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Overall

7.7

Boarding

7.7

Comfort

7.4

Crew

8.2

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
9,606 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Overall

7.7

Boarding

7.7

Comfort

7.4

Crew

8.2

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
7.3
Good
1,512 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Overall

7.7

Boarding

7.7

Comfort

7.4

Crew

8.2

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.
Brussels Airlines
7.2
Good
403 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Overall

7.7

Boarding

7.7

Comfort

7.4

Crew

8.2

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
634 reviews
Finnair
7.7
Good
1,389 reviews
Check prices

Overall

7.7

Boarding

7.7

Comfort

7.4

Crew

8.2

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?

    JetBlue, Finnair, and Aer Lingus can get you from Dublin to Illinois in just under 8h. Your travel time can differ by up to 8h 13m. 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: Air Canada (82%), Austrian Airlines (82%), Brussels Airlines (82%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £390. While the most popular route (Dublin - Chicago Midway) can be booked for £669 on average, our data indicates £1,059 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, September is the cheapest month in which you can book a flight from Dublin to Illinois (average of £201). Flying from Dublin to Illinois in July is currently the most expensive (average of £387). 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 5 airlines flying from Dublin to Illinois

Discover the top 5 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£295Average£336FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£321Average£567FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£340Average£506FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£351Average£637FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£449Average£566FlexibilityNo 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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