How long is the flight from Dublin to Illinois?

Scandinavian Airlines can get you from Dublin to Illinois in just under 27h 40m. Your travel time can differ by up to . There are 3661 mi between Dublin and Illinois.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the cheapest flights from Dublin to Illinois?

Looking at all options, your cheapest flight can be booked for £452. While the most popular route (Dublin - Chicago Midway) can be booked for £479 on average, our data indicates £1,018 when flying from Dublin to Illinois.

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: Alaska Airlines (88%), Finnair (79%), American Airlines (72%).

What are the most popular airlines that fly from Dublin to Illinois?

Aer Lingus, Finnair and United Airlines are the most popular airlines when flying from Dublin to Illinois.

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.

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.

£327+ Cheap Flights from Dublin to Illinois

Cheap flight deals from Dublin to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 12 October 2026.

Thu 26/1111:30 -

1 stop11h 50m

Sun 29/1118:30 -

1 stop9h 45m

Deal found 8/10£357

Tue 24/1119:05 -

1 stop27h 40m

Mon 30/1119:10 -

2 stops34h 40m

Deal found 7/10£372

Wed 2/1219:05 -

1 stop27h 40m

Sun 6/1219:10 -

1 stop34h 35m

Deal found 7/10£378

Wed 25/1119:05 -

1 stop27h 40m

Mon 30/1119:10 -

1 stop17h 10m

Deal found 9/10£381

Thu 24/1212:30 -

1 stop34h 15m

Thu 31/1219:10 -

1 stop17h 10m

Deal found 8/10£398

Find flight deals from Dublin to Illinois

Round-trip from	£357
One-way from	£327
Popular in	August
Cheapest in	November
Average price	£553
Good round-trip deal	£553 or less
Good one-way deal	£454 or less

Icelandair
26/11-29/11
2 total stops
21h 35m total
Dublin to Illinois

Search Deals

TAP AIR PORTUGAL
21/11-31/12
1 total stop
28h 35m total
Dublin to Illinois

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£50 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 21/11

16:55-15:30

1 stop28h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£327

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Mon 5/4

08:55-21:37

2 stops18h 42m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£328

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 10/4

08:55-20:37

2 stops17h 42m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£328

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 7/4

06:00-19:34

2 stops19h 34m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£328

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Fri 9/4

08:55-21:33

2 stops18h 38m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£328

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 9/1

06:00-19:09

2 stops19h 09m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£330

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 7/11

16:55-15:30

1 stop28h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£345

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Thu 18/2

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Tue 23/2

19:10-10:00

2 stops32h 50m

£373

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Wed 2/12

19:05-16:45

1 stop27h 40m

Chicago O'Hare Intl

Sun 6/12

19:10-11:45

1 stop34h 35m

£377

DublinChicago

DUB Dublin - ORD Chicago O'Hare Intl

DUBORD

Dublin

Sat 23/1

10:10-16:45

1 stop12h 35m

Chicago O'Hare Intl

Thu 28/1

19:10-18:20

1 stop17h 10m

£378

Flights are sorted by cheapest return flights first.

Deals found on 12/10

Showing 1-10 of 15 resultsSorted by cheapest first

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.

DUB-ORD

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

DUB-USIL

DUB-ORD

What is the cheapest month to book a flight from Dublin to Illinois?

Currently, November is the cheapest month in which you can book a flight from Dublin to Illinois (average of £404). Flying from Dublin to Illinois in July is currently the most expensive (average of £632). 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?

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

The most flights from DUB to USIL are scheduled on a Saturday (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?

Airfare is below average for this route at the moment.

Dublin to Illinois flights typically cost between £423 and £601 in November.
The cheapest return price found within the last 5 days was £357 on Icelandair (26 Nov–29 Nov).

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 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Illinois

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

1,421 reviews

Check prices

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

1,421 reviews

Finnair

7.6

Good

1,421 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jake,Jun 2026

RNO - SEA

United Airlines

7.4

Good

10,352 reviews

Finnair

7.6

Good

1,421 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jake,Jun 2026

RNO - SEA

Aer Lingus

7.3

Good

1,826 reviews

Finnair

7.6

Good

1,421 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jake,Jun 2026

RNO - SEA

JetBlue

7.1

Good

3,048 reviews

Finnair

7.6

Good

1,421 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jake,Jun 2026

RNO - SEA

Lufthansa

6.8

Okay

8,274 reviews

Finnair

7.6

Good

1,421 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jake,Jun 2026

RNO - SEA

Related info for your journey

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 can get you from Dublin to Illinois in just under 27h 40m. Your travel time can differ by up to . There are 3661 mi between Dublin and Illinois.
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: Alaska Airlines (88%), Finnair (79%), American Airlines (72%).
What are the cheapest flights from Dublin to Illinois?
Looking at all options, your cheapest flight can be booked for £452. While the most popular route (Dublin - Chicago Midway) can be booked for £479 on average, our data indicates £1,018 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, November is the cheapest month in which you can book a flight from Dublin to Illinois (average of £404). Flying from Dublin to Illinois in July is currently the most expensive (average of £632). 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

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Top 6 airlines flying from Dublin to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£312	Average£481	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Lufthansa	Cheapest£337	Average£657	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Aer Lingus	Cheapest£384	Average£553	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
JetBlue	Cheapest£458	Average£476	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Finnair	Cheapest£464	Average£672	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
United Airlines	Cheapest£529	Average£661	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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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Cheap flights from Dublin to Illinois from £327

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dublin to Illinois

Cheapest flights from Dublin to IllinoisExplore 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 12 October 2026.

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 12 October 2026.

Best flights from Dublin to IllinoisDiscover carefully curated flight deals from Dublin to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Discover carefully curated flight deals from Dublin to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Direct flights from Dublin to IllinoisExplore direct flight options from Dublin to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Explore direct flight options from Dublin to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Last-minute flights from Dublin to IllinoisDiscover last-minute flight deals from Dublin to Illinois. Data last updated 12 October 2026 and is based on user searches.

Discover last-minute flight deals from Dublin to Illinois. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Dublin to IllinoisSearch for one-way flight options from Dublin to Illinois. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Search for one-way flight options from Dublin to Illinois. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Find flight deals from Dublin to Illinois

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One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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

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.

Cheapflights Insights

What is the cheapest month to book a flight from Dublin to Illinois?

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 12 October 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 12 October 2026.

The most flights from DUB to USIL are scheduled on a Saturday (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?

Airfare is below average for this route at the moment.

Dublin to Illinois flights typically cost between £423 and £601 in November.The cheapest return price found within the last 5 days was £357 on Icelandair (26 Nov–29 Nov).

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 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Illinois

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.

Related info for your journey

What airport do you fly from for flights from Dublin to Illinois?

How long is the flight from Dublin to Illinois?

What are the most reliable airlines from Dublin to Illinois?

What are the cheapest flights from Dublin to Illinois?

Can I find deals for flights from Dublin to Illinois that include hotel bookings?

How can I find direct flights from Dublin to Illinois?

Can I find deals for business class flights from Dublin to Illinois?

What is the cheapest month to book a flight from Dublin to Illinois?

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.

Complete your trip

Complete your trip to Illinois by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Dublin to Illinois by cabin class

Find flights from Dublin to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dublin and Illinois flights

Browse other Dublin and Illinois flight options. Last updated on 12 October 2026.

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Check out other popular destinations found by fellow travellers in 2026

Top 6 airlines flying from Dublin to Illinois

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How does Cheapflights help users find flights from Dublin to Illinois?

Why should you use Cheapflights to find cheap flight tickets from Dublin to Illinois?

Can Cheapflights find flights from Dublin to Illinois with no change fees?

Can Cheapflights notify me if prices for flights from Dublin to Illinois become cheaper?

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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 12 October 2026.

Best flights from Dublin to Illinois
Discover carefully curated flight deals from Dublin to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.

Direct flights from Dublin to Illinois
Explore direct flight options from Dublin to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.

Last-minute flights from Dublin to Illinois
Discover last-minute flight deals from Dublin to Illinois. Data last updated 12 October 2026 and is based on user searches.

One-way flights from Dublin to Illinois
Search for one-way flight options from Dublin to Illinois. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.

Dublin to Illinois flights typically cost between £423 and £601 in November.
The cheapest return price found within the last 5 days was £357 on Icelandair (26 Nov–29 Nov).