How long is the flight from Illinois to Ireland?

Flight times from Illinois to Ireland vary, but if you’re flying out of Chicago and flying into Dublin (one of the most popular routes), then the duration is 8h 31m on average. Another popular route from Illinois to Ireland is flying from Peoria to Dublin, which will take roughly 14h 30m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Illinois to Ireland on average per week?

As of August 2025, 133 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How many flights depart from Illinois to Ireland on average per day?

As of August 2025, 19 flights take off from Illinois and land in Ireland each day. The most common flight departure time for this route is 8:00PM, with 82% of daily flights taking off in the evening.

What is the cheapest airline that flies from Illinois to Ireland?

TAP AIR PORTUGAL and WestJet are the most popular carriers operating from Illinois to Ireland

What airlines fly to Ireland?

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Ireland from Illinois according to our data. Aer Lingus is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 15 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to Ireland?

Prices for flights from Illinois to Ireland were last updated today.

How many operators does momondo search for flights from Illinois to Ireland?

As of August 2025, there are 17 operators available to choose from for flights from Illinois to Ireland.

How old do you have to be to fly from Illinois to Ireland?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Ireland.

What documentation or ID do you need to fly to Ireland?

The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$213 Cheap Flights from Illinois to Ireland in 2025

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Find the cheapest flights from Illinois to Ireland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:15 pm - 4:10 pmORD-DUB

13h 55m1 stop

4:25 am - 3:15 pmDUB-ORD

16h 50m1 stop

$400TAP AIR PORTUGAL

Find Deal

Fri, Nov 7 - Thu, Nov 13

8:15 pm - 4:10 pmORD-DUB

13h 55m1 stop

4:25 am - 3:15 pmDUB-ORD

16h 50m1 stop

$402TAP AIR PORTUGAL

Find Deal

Fri, Nov 7 - Thu, Nov 13

7:20 pm - 6:20 pmORD-DUB

17h 00m1 stop

5:15 pm - 4:45 pmDUB-ORD

29h 30m2 stops

$405Scandinavian Airlines

Find Deal

Mon, Feb 2 - Sun, Feb 15

7:20 pm - 6:20 pmORD-DUB

17h 00m1 stop

5:15 pm - 4:45 pmDUB-ORD

29h 30m2 stops

$406Scandinavian Airlines

Find Deal

Mon, Feb 2 - Sun, Feb 15

10:36 am - 6:30 amSTL-DUB

13h 54m1 stop

11:30 am - 8:55 pmDUB-STL

15h 25m1 stop

$408Iberia

Find Deal

Tue, Oct 21 - Wed, Nov 5

4:27 pm - 8:45 amSTL-DUB

11h 18m1 stop

9:45 am - 6:02 pmDUB-STL

14h 17m1 stop

$412KLM

Find Deal

Wed, Oct 29 - Wed, Nov 5

4:05 pm - 8:15 amSTL-DUB

10h 10m1 stop

9:00 am - 2:25 pmDUB-STL

35h 25m2 stops

$414Air Canada

Find Deal

Tue, Oct 21 - Wed, Nov 5

4:05 pm - 8:15 amSTL-DUB

10h 10m1 stop

9:00 am - 2:25 pmDUB-STL

35h 25m2 stops

$415Air Canada

Find Deal

Tue, Oct 21 - Wed, Nov 5

1:20 pm - 7:10 amSTL-DUB

11h 50m1 stop

11:30 am - 8:55 pmDUB-STL

15h 25m1 stop

$457Iberia

Find Deal

Fri, Nov 7 - Thu, Nov 13

1:05 pm - 7:45 amMDW-DUB

12h 40m1 stop

9:45 am - 4:23 pmDUB-MDW

12h 38m1 stop

$583KLM

Find Deal

Mon, Nov 10 - Sun, Nov 23

United Airlines flights from Illinois to Ireland

Our best United Airlines deals on Illinois to Ireland flight tickets

United Airlines

Nov 5

STL8:20 amLambert-St Louis

19h 35m

2 stops

DUB9:55 amDublin

Nov 13

DUB12:05 pmDublin

28h 46m

2 stops

STL10:51 amLambert-St Louis

$416

Find similar

United Airlines

Nov 5

STL8:25 amLambert-St Louis

19h 55m

1 stop

DUB10:20 amDublin

Nov 9

DUB9:00 amDublin

42h 59m

2 stops

STL9:59 pmLambert-St Louis

$434

Find similar

United Airlines

Oct 26

STL4:17 pmLambert-St Louis

37h 03m

2 stops

DUB10:20 amDublin

Nov 6

DUB12:05 pmDublin

36h 42m

2 stops

STL6:47 pmLambert-St Louis

$439

Find similar

Scandinavian Airlines flights from Illinois to Ireland

Our best Scandinavian Airlines deals on Illinois to Ireland flight tickets

Scandinavian Airlines

Feb 2

ORD7:20 pmChicago O'Hare Intl

17h 00m

1 stop

DUB6:20 pmDublin

Feb 15

DUB5:15 pmDublin

29h 30m

2 stops

ORD4:45 pmChicago O'Hare Intl

$405

Find similar

Scandinavian Airlines

Feb 2

ORD7:20 pmChicago O'Hare Intl

17h 00m

1 stop

DUB6:20 pmDublin

Feb 15

DUB5:15 pmDublin

29h 30m

2 stops

ORD4:45 pmChicago O'Hare Intl

$406

Find similar

Scandinavian Airlines

Nov 7

ORD7:20 pmChicago O'Hare Intl

32h 05m

1 stop

DUB9:25 amDublin

Nov 14

DUB6:55 pmDublin

27h 50m

2 stops

ORD4:45 pmChicago O'Hare Intl

$407

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 11/7

8:15 pm-4:10 pm

1 stop13h 55m

Dublin

Thu 11/13

4:25 am-3:15 pm

1 stop16h 50m

$400

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 11/7

8:15 pm-4:10 pm

1 stop13h 55m

Dublin

Thu 11/13

4:25 am-3:15 pm

1 stop16h 50m

$402

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 2/2

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

Sun 2/15

5:15 pm-4:45 pm

2 stops29h 30m

$405

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 2/2

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

Sun 2/15

5:15 pm-4:45 pm

2 stops29h 30m

$406

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 10/21

10:36 am-6:30 am

1 stop13h 54m

Dublin

Wed 11/5

11:30 am-8:55 pm

1 stop15h 25m

$408

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 10/29

4:27 pm-8:45 am

1 stop11h 18m

Dublin

Wed 11/5

9:45 am-6:02 pm

1 stop14h 17m

$412

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 10/21

4:05 pm-8:15 am

1 stop10h 10m

Dublin

Wed 11/5

9:00 am-2:25 pm

2 stops35h 25m

$414

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 10/21

4:05 pm-8:15 am

1 stop10h 10m

Dublin

Wed 11/5

9:00 am-2:25 pm

2 stops35h 25m

$415

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Fri 11/7

1:20 pm-7:10 am

1 stop11h 50m

Dublin

Thu 11/13

11:30 am-8:55 pm

1 stop15h 25m

$457

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Mon 11/10

1:05 pm-7:45 am

1 stop12h 40m

Dublin

Sun 11/23

9:45 am-4:23 pm

1 stop12h 38m

$583

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ireland?

In general, February is the cheapest month to fly from Illinois to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $545. If you aren’t able to travel to Ireland during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $547.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $745. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to Ireland on a Friday will generally be more expensive and average around $820. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

According to our data, the cheapest time of day to fly to Ireland is in the morning. momondo users have found flights departing from Illinois to Ireland in the morning for as low as $714. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around $783.

What is the cheapest Illinois to Ireland flight route?

Fly from Chicago O'Hare Intl to Dublin for the best Illinois - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $691 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Illinois for as low as $630 on momondo.

What cabin class options are available on Illinois to Ireland flights?

There are 3 cabin classes available to choose from on Illinois to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Ireland flights?

You could potentially save up to 42% on your flight if you consider stops on a Illinois to Ireland flight.

Cheap Illinois to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Ireland

Best Price Found	$213
Fastest flight time	7h 25m
Direct flights	Every day
Airports in Ireland	3 airports

The best one-way flight to Ireland from Illinois in the past 72 hours is $213. The best round-trip flight deal from Illinois to Ireland found on momondo in the last 72 hours is $400.

The fastest flight from Illinois to Ireland takes 7h 25m

Direct flights go from Illinois to Ireland every day.

There are 3 airports near Ireland: Dublin (DUB), Shannon (SNN), Cork (ORK)

Search flight deals

When did momondo last update prices for flights from Illinois to Ireland?
Prices for flights from Illinois to Ireland were last updated today.
How many operators does momondo search for flights from Illinois to Ireland?
As of August 2025, there are 17 operators available to choose from for flights from Illinois to Ireland.
How old do you have to be to fly from Illinois to Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Ireland?
Based on momondo bookings for flights between Illinois and Ireland, the leading plane model is Boeing 787-8 Dreamliner, making up 47.38% of the total bookings. Other popular models include Boeing 787 Dreamliner with 16.48%, Airbus A330 with 11.75%, and Boeing 787-10 Dreamliner with 4.00%.

Best airlines flying from Illinois to Ireland

Compare and see reviews for airlines that fly from Illinois to Ireland with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $51	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Icelandair	PriceFrom $354	Free Cancellation	Rating 7.0 524 reviews	Search Icelandair flights
TAP AIR PORTUGAL	PriceFrom $394	Free Cancellation	Rating 7.1 1,942 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $400	Free Cancellation	Rating 7.4 1,462 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom $454	Free Cancellation	Rating 7.1 1,197 reviews	Search Aer Lingus flights
SWISS	PriceFrom $473	Free Cancellation	Rating 7.6 1,689 reviews	Search SWISS flights
American Airlines	PriceFrom $511	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Iberia	PriceFrom $512	Free Cancellation	Rating 7.0 2,865 reviews	Search Iberia flights
United Airlines	PriceFrom $513	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
British Airways	PriceFrom $524	Free Cancellation	Rating 6.6 7,237 reviews	Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Ireland for you.

Can I find flights from Illinois to Ireland with flexible booking policies on momondo?

All flight searches from Illinois to Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Ireland?

Once all potential Illinois to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

Popular cities in Ireland

Flights to Dublinfrom $320

Flights to Shannon, Clarefrom $337

Flights to Corkfrom $390

Flights to Knockfrom $583

Flights to Milltown (Kerry)from $473

Flights to Donegalfrom $768

Cheap flights from Illinois to Ireland from $213

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ireland departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Illinois to Ireland

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

United Airlines flights from Illinois to Ireland

Our best United Airlines deals on Illinois to Ireland flight tickets

Scandinavian Airlines flights from Illinois to Ireland

Our best Scandinavian Airlines deals on Illinois to Ireland flight tickets

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

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How to get the cheapest flight ticket from Illinois to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

What is the cheapest Illinois to Ireland flight route?

Fly from Chicago O'Hare Intl to Dublin for the best Illinois - Ireland flight prices

How far in advance should I book a flight to Ireland?

What cabin class options are available on Illinois to Ireland flights?

There are 3 cabin classes available to choose from on Illinois to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Ireland flights?

You could potentially save up to 42% on your flight if you consider stops on a Illinois to Ireland flight.

What is the cheapest airline that flies from Illinois to Ireland?

TAP AIR PORTUGAL and WestJet are the most popular carriers operating from Illinois to Ireland

What airlines fly to Ireland?

How many flights depart from Illinois to Ireland on average per day?

As of August 2025, 19 flights take off from Illinois and land in Ireland each day. The most common flight departure time for this route is 8:00PM, with 82% of daily flights taking off in the evening.

How many flights depart from Illinois to Ireland on average per week?

As of August 2025, 133 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How long is the flight from Illinois to Ireland?

Cheap Illinois to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Ireland

Best Price Found

Fastest flight time

Direct flights

Airports in Ireland

When did momondo last update prices for flights from Illinois to Ireland?

How many operators does momondo search for flights from Illinois to Ireland?

How old do you have to be to fly from Illinois to Ireland?

What documentation or ID do you need to fly to Ireland?

What is the most popular plane model from Illinois to Ireland?

Best airlines flying from Illinois to Ireland

Compare and see reviews for airlines that fly from Illinois to Ireland with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Ireland?

Can I find flights from Illinois to Ireland with flexible booking policies on momondo?

How can momondo help me find flights from Illinois to Ireland?

I’m not ready to book a flight from Illinois to Ireland right now. Can momondo alert me if prices change?

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo