Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Dublin to Illinois from £348

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
7 Dec — 14 Dec1
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 7 November 2025.

Round-trip from

£348

Popular in

July

Cheapest in

September

Average price

£390

Good round-trip deal

£427 or less

Good one-way deal

£505 or less
Lufthansa
  • Lufthansa
  • 12/2-26/2
  • 1 total stop
  • 21h 45m total
  • Dublin to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£60 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 November 2025
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

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 7 November 2025.

Sat 22/1110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Fri 27/219:20ORD - DUB
2 stops34h 00mScandinavian Airlines
Deal found 6/11£350
Tue 9/1219:05DUB - ORD
1 stop27h 40mScandinavian Airlines
Thu 29/119:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Deal found 6/11£355
Mon 17/1105:55DUB - ORD
1 stop14h 25mMultiple Airlines
Mon 24/1117:20ORD - DUB
1 stop16h 25mMultiple Airlines
Deal found 6/11£356
Thu 11/1208:50DUB - MDW
2 stops15h 10mKLM
Sun 14/1210:49MDW - DUB
1 stop14h 56mKLM
Deal found 7/11£357
Mon 17/1105:55DUB - ORD
1 stop14h 25mDelta
Sun 23/1106:45ORD - DUB
1 stop19h 00mDelta
Deal found 6/11£357
Tue 18/1117:15DUB - ORD
1 stop27h 05mKLM
Tue 25/1111:03ORD - DUB
1 stop14h 42mKLM
Deal found 6/11£358
Wed 19/1108:50DUB - ORD
1 stop11h 30mDelta
Tue 25/1114:35ORD - DUB
2 stops19h 45mDelta
Deal found 6/11£359
Tue 18/1105:55DUB - ORD
2 stops16h 57mDelta
Mon 24/1110:35ORD - DUB
2 stops15h 15mDelta
Deal found 6/11£360
Fri 14/1105:55DUB - ORD
2 stops18h 18mDelta
Sun 23/1115:50ORD - DUB
1 stop11h 30mDelta
Deal found 5/11£362
Thu 4/1205:55DUB - MDW
2 stops18h 23mDelta
Tue 9/1209:59MDW - DUB
1 stop15h 46mDelta
Deal found 6/11£362
Thu 20/1106:00DUB - ORD
1 stop15h 10mDelta
Sun 23/1106:45ORD - DUB
1 stop19h 00mDelta
Deal found 5/11£363
Thu 13/1108:50DUB - MDW
2 stops15h 18mDelta
Sun 16/1109:34MDW - DUB
2 stops16h 11mDelta
Deal found 5/11£363

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 7 November 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

Wed 25/3

05:10-16:20

1 stop16h 10m

Chicago O'Hare Intl

Tue 31/3

20:15-09:45

Nonstop7h 30m

£348

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 26/2

05:00-15:20

1 stop16h 20m

Chicago O'Hare Intl

Mon 2/3

18:35-08:10

Nonstop7h 35m

£348

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 10/2

17:25-13:50

1 stop26h 25m

Chicago O'Hare Intl

Tue 17/2

21:45-17:00

1 stop13h 15m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 11/2

10:20-17:00

1 stop12h 40m

Chicago O'Hare Intl

Wed 18/2

21:45-17:00

1 stop13h 15m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/2

16:05-13:50

1 stop27h 45m

Chicago O'Hare Intl

Sun 15/2

21:45-16:50

1 stop13h 05m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 5/2

08:50-15:25

1 stop12h 35m

Chicago O'Hare Intl

Fri 13/2

17:10-15:05

1 stop15h 55m

£350

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 27/3

11:30-20:07

1 stop13h 37m

Chicago O'Hare Intl

Tue 31/3

21:15-14:45

1 stop11h 30m

£356

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 12/2

11:30-16:45

2 stops35h 15m

Chicago O'Hare Intl

Thu 26/2

19:20-18:10

2 stops16h 50m

£357

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 17/11

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Sun 23/11

05:23-07:45

1 stop20h 22m

£357

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 8/12

05:55-14:20

1 stop14h 25m

Chicago O'Hare Intl

Tue 16/12

08:50-07:45

1 stop16h 55m

£358

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 37 results
1
2
3
4

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, February is the cheapest month in which you can book a flight from Dublin to Illinois (average of £299). Flying from Dublin to Illinois in July is currently the most expensive (average of £476). 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 7 November 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 7 November 2025.

The most flights from DUB to USIL are scheduled on a Thursday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

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 7 November 2025.
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
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

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
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

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
9,008 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

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
7.2
Good
1,365 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

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
7.1
Good
572 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

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.
British Airways
6.7
Okay
7,500 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Comfort

7.4

Entertainment

6.9

Overall

7.6

Boarding

7.6

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?

    Lufthansa, British Airways, and Delta can get you from Dublin to Illinois in just under 16h 10m. Your travel time can differ by up to 10h 15m. 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 cheapest airlines to fly from Dublin to Illinois one-way?

    The cheapet airlines for a one-way flight from Dublin to Illinois are British Airways (£364), Icelandair (£373), and Delta (£467).

  • 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 (86%), Austrian Airlines (75%), Brussels Airlines (75%).

  • What are the cheapest flights from Dublin to Illinois?

    Looking at all options, your cheapest flight can be booked for £343. While the most popular route (Dublin - Chicago O'Hare Intl) can be booked for £318 on average, our data indicates £1,004 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, February is the cheapest month in which you can book a flight from Dublin to Illinois (average of £299). Flying from Dublin to Illinois in July is currently the most expensive (average of £476). 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.

Alternative routes for Dublin to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Orlando flights
Dublin to John F Kennedy Intl flights
Dublin to LaGuardia flights
Dublin to O'Hare Intl flights
Dublin to Newark flights
Dublin to Dallas/Fort Worth flights
Dublin to Las Vegas flights
Dublin to Philadelphia flights
Dublin to Detroit flights
Dublin to Seattle flights
Dublin to Midway flights
Dublin to Los Angeles flights
Dublin to Boston flights
Dublin to Fort Lauderdale flights
Dublin to San Diego flights
Dublin to Dulles Intl flights
Dublin to Melbourne flights
Dublin to Miami flights
Shannon to Newark flights
Dublin to Atlanta flights
Dublin to Manchester flights
Dublin to New Orleans flights
Dublin to Oakland flights
Dublin to West Palm Beach flights
Dublin to Stewart flights
Dublin to Tampa flights
Dublin to Denver flights
Dublin to Baltimore flights
Dublin to Charleston flights
Dublin to Nashville flights
Dublin to Honolulu flights
Dublin to Hobby flights
Dublin to New Haven flights
Shannon to Philadelphia flights
Dublin to San Francisco flights
Dublin to San Jose flights
Dublin to Santa Ana flights
Dublin to Sarasota flights
Dublin to Toledo flights
Shannon to LaGuardia flights
Dublin to Tulsa flights

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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£247Average£367FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£307Average£489FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£323Average£562FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£351Average£492FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£363Average£638FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£465Average£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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.