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Cheap flights from Dublin to Illinois from £370

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 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
28 Jul — 4 Aug1
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 28 June 2026.

Fri 9/1010:00
DUB
-
ORD
1 stop12h 49m
Delta
Mon 12/1017:45
ORD
-
DUB
2 stops15h 40m
Delta
Deal found 25/6£461
Wed 7/1011:00
DUB
-
ORD
1 stop16h 45m
Delta
Mon 12/1015:50
ORD
-
DUB
1 stop10h 05m
Delta
Deal found 26/6£464
Wed 7/1010:00
DUB
-
MDW
1 stop12h 50m
KLM
Mon 12/1012:30
MDW
-
DUB
1 stop13h 25m
KLM
Deal found 26/6£464
Wed 7/1011:00
DUB
-
MDW
1 stop17h 25m
Delta
Mon 12/1009:59
MDW
-
DUB
1 stop15h 56m
Delta
Deal found 27/6£465
Tue 25/816:45
DUB
-
ORD
Nonstop8h 30m
Aer Lingus
Sat 29/815:45
ORD
-
DUB
Nonstop7h 25m
Aer Lingus
Deal found 25/6£468
Thu 20/809:40
DUB
-
ORD
2 stops29h 20m
Multiple Airlines
Mon 31/812:30
ORD
-
DUB
3 stops18h 45m
Multiple Airlines
Deal found 26/6£470
Wed 23/909:20
DUB
-
ORD
1 stop16h 28m
United Airlines
Fri 2/1020:20
ORD
-
DUB
Nonstop7h 25m
United Airlines
Deal found 25/6£470
Wed 16/912:00
DUB
-
MDW
1 stop12h 19m
KLM
Tue 22/913:00
MDW
-
DUB
1 stop13h 45m
KLM
Deal found 26/6£470
Fri 23/1005:55
DUB
-
ORD
1 stop14h 20m
Multiple Airlines
Thu 29/1018:20
ORD
-
DUB
1 stop15h 10m
Multiple Airlines
Deal found 27/6£471
Sun 27/1210:40
DUB
-
ORD
Nonstop8h 40m
United Airlines
Mon 11/107:10
ORD
-
DUB
1 stop18h 20m
United Airlines
Deal found 23/6£472
Mon 31/808:55
DUB
-
MDW
2 stops15h 06m
Delta
Mon 28/909:59
MDW
-
DUB
1 stop15h 56m
Delta
Deal found 23/6£472
Thu 27/809:50
DUB
-
ORD
2 stops17h 40m
United Airlines
Thu 3/915:40
ORD
-
DUB
1 stop34h 05m
United Airlines
Deal found 23/6£473

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 28 June 2026.

Round-trip from

£461

One-way from

£370

Popular in

August

Cheapest in

November

Average price

£532

Good round-trip deal

£586 or less

Good one-way deal

£699 or less
Delta
  • Delta
  • 9/10-12/10
  • 3 total stops
  • 28h 29m total
  • Dublin to Illinois
Search Deals
JetBlue
  • JetBlue
  • 23/7
  • 1 total stop
  • 14h 35m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 28 June 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 27/8

09:50-21:30

2 stops17h 40m

Chicago O'Hare Intl

Thu 3/9

15:40-07:45

1 stop34h 05m

£473

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 23/9

11:35-13:40

Nonstop8h 05m

Chicago O'Hare Intl

Fri 2/10

15:00-11:10

1 stop14h 10m

£475

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 25/8

11:40-16:10

2 stops34h 30m

Chicago O'Hare Intl

Sat 29/8

19:15-10:25

2 stops33h 10m

£482

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 23/9

11:40-16:10

2 stops34h 30m

Chicago O'Hare Intl

Fri 2/10

19:15-09:15

2 stops32h 00m

£513

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 28/9

19:50-16:10

2 stops26h 20m

Chicago O'Hare Intl

Fri 2/10

19:15-09:15

2 stops32h 00m

£538

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/8

13:45-19:26

1 stop11h 41m

Chicago O'Hare Intl

Mon 10/8

22:30-18:40

1 stop14h 10m

£552
Fastest return journey

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/8

09:30-11:30

Nonstop8h 00m

Chicago O'Hare Intl

Mon 10/8

22:20-11:50

Nonstop7h 30m

£554

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 12/8

11:30-17:35

1 stop12h 05m

Chicago O'Hare Intl

Mon 17/8

09:42-09:00

1 stop17h 18m

£568

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 17/8

14:15-18:15

1 stop10h 00m

Chicago O'Hare Intl

Mon 24/8

19:25-13:15

1 stop11h 50m

£576

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/8

14:15-21:25

1 stop13h 10m

Chicago O'Hare Intl

Mon 10/8

19:25-13:15

1 stop11h 50m

£577

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 42 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 £206). 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 28 June 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 28 June 2026.

The most flights from DUB to USIL are scheduled on a Wednesday (21 on average). You will have fewer flight options on Sunday, 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?

How far ahead should I book a flight from Dublin to Illinois?

The price you pay for your flight from Dublin to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 28 June 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
7.6
Good
1,415 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,415 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
United Airlines
7.4
Good
9,898 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Aer Lingus
7.3
Good
1,628 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Icelandair
7.0
Good
690 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Lufthansa
6.8
Okay
8,103 reviews
Finnair
7.6
Good
1,415 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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, Scandinavian Airlines, and Delta can get you from Dublin to Illinois in just under 17h 40m. Your travel time can differ by up to 16h 50m. 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 (84%), Aer Lingus (84%), British Airways (84%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £467. While the most popular route (Dublin - Chicago Midway) can be booked for £609 on average, our data indicates £673 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 £206). 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

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 28 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£303Average£483FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
LufthansaCheapest£337Average£660FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£351Average£550FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£360Average£654FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£465Average£673FlexibilityNo cancel feeOn-time76%
Search Finnair 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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