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 54% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 16 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

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 9h 37m on average. Another popular route from Illinois to Ireland is flying from Peoria to Dublin, which will take roughly 11h 46m. Keep in mind that layovers or delays could extend your travel time.

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

Aer Lingus, Scandinavian Airlines, and JetBlue are the most popular carriers operating from Illinois to Ireland

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

As of November 2025, 12 flights take off from Illinois and land in Ireland each day. The most common flight departure time for this route is 6:00PM, with 63% of daily flights taking off in the evening.

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

As of November 2025, 85 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.

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 November 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.

$208 Cheap Flights from Illinois to Ireland in 2025/26

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Find the cheapest flights from Illinois to Ireland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 7:45 amSTL-DUB

16h 45m1 stop

9:45 am - 4:49 pmDUB-STL

13h 04m1 stop

$433KLM

Find Deal

mar., dic. 2 - mar., dic. 9

9:00 am - 7:45 amSTL-DUB

16h 45m1 stop

10:45 am - 8:47 pmDUB-STL

16h 02m2 stops

$438Delta

Find Deal

mar., dic. 2 - mar., dic. 9

3:50 pm - 11:00 amSTL-DUB

13h 10m1 stop

5:10 am - 1:55 pmDUB-STL

14h 45m1 stop

$440Lufthansa

Find Deal

dom., nov. 16 - dom., nov. 23

9:00 am - 7:45 amSTL-DUB

16h 45m1 stop

6:00 am - 5:10 pmDUB-STL

17h 10m2 stops

$452Multiple Airlines

Find Deal

mar., dic. 2 - jue., dic. 11

3:14 pm - 8:10 amSTL-DUB

10h 56m1 stop

9:00 am - 7:16 pmDUB-STL

40h 16m2 stops

$455United Airlines

Find Deal

dom., nov. 16 - dom., nov. 23

6:43 pm - 7:10 amSTL-DUB

30h 27m2 stops

5:10 am - 1:55 pmDUB-STL

14h 45m1 stop

$460Multiple Airlines

Find Deal

sáb., nov. 22 - mié., nov. 26

7:20 pm - 11:45 amORD-DUB

34h 25m1 stop

10:10 am - 4:45 pmDUB-ORD

12h 35m1 stop

$461Scandinavian Airlines

Find Deal

sáb., nov. 29 - sáb., dic. 6

5:24 pm - 7:10 amSTL-DUB

31h 46m2 stops

9:00 am - 12:15 pmDUB-STL

33h 15m2 stops

$462United Airlines

Find Deal

lun., dic. 1 - lun., dic. 8

7:10 am - 6:20 pmORD-DUB

29h 10m2 stops

10:10 am - 4:45 pmDUB-ORD

12h 35m1 stop

$471Scandinavian Airlines

Find Deal

dom., nov. 16 - sáb., nov. 22

9:50 pm - 5:10 pmORD-DUB

13h 20m1 stop

9:15 am - 8:05 pmDUB-ORD

16h 50m1 stop

$476Lufthansa

Find Deal

mar., nov. 11 - dom., nov. 16

Aer Lingus flights from Illinois to Ireland

Our best Aer Lingus deals on Illinois to Ireland flight tickets

Aer Lingus

Nov 18

ORD3:50 pmChicago O'Hare Intl

7h 20m

DUB5:10 amDublin

Nov 24

DUB11:30 amDublin

8h 30m

ORD2:00 pmChicago O'Hare Intl

$467

Find similar

Aer Lingus

Nov 7

ORD7:40 pmChicago O'Hare Intl

7h 20m

DUB9:00 amDublin

Nov 12

DUB3:20 pmDublin

8h 35m

ORD5:55 pmChicago O'Hare Intl

$471

Find similar

Aer Lingus

Nov 25

ORD3:50 pmChicago O'Hare Intl

7h 20m

DUB5:10 amDublin

Nov 27

DUB11:30 amDublin

8h 30m

ORD2:00 pmChicago O'Hare Intl

$494

Find similar

Delta flights from Illinois to Ireland

Our best Delta deals on Illinois to Ireland flight tickets

Delta

Nov 9

STL1:35 pmLambert-St Louis

13h 45m

2 stops

DUB9:20 amDublin

Nov 25

DUB10:45 amDublin

11h 48m

1 stop

STL4:33 pmLambert-St Louis

$424

Find similar

Delta

Dec 2

STL9:00 amLambert-St Louis

16h 45m

1 stop

DUB7:45 amDublin

Dec 9

DUB10:45 amDublin

16h 02m

2 stops

STL8:47 pmLambert-St Louis

$438

Find similar

Delta

Nov 9

STL1:35 pmLambert-St Louis

13h 45m

2 stops

DUB9:20 amDublin

Nov 25

DUB5:55 amDublin

16h 12m

2 stops

STL4:07 pmLambert-St Louis

$443

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 12/2

9:00 am-7:45 am

1 stop16h 45m

Dublin

mar. 12/9

9:45 am-4:49 pm

1 stop13h 04m

$433

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 12/2

9:00 am-7:45 am

1 stop16h 45m

Dublin

mar. 12/9

10:45 am-8:47 pm

2 stops16h 02m

$438

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 11/16

3:50 pm-11:00 am

1 stop13h 10m

Dublin

dom. 11/23

5:10 am-1:55 pm

1 stop14h 45m

$440

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

mar. 12/2

9:00 am-7:45 am

1 stop16h 45m

Dublin

jue. 12/11

6:00 am-5:10 pm

2 stops17h 10m

$452

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

dom. 11/16

3:14 pm-8:10 am

1 stop10h 56m

Dublin

dom. 11/23

9:00 am-7:16 pm

2 stops40h 16m

$455

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

sáb. 11/22

6:43 pm-7:10 am

2 stops30h 27m

Dublin

mié. 11/26

5:10 am-1:55 pm

1 stop14h 45m

$460

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

sáb. 11/29

7:20 pm-11:45 am

1 stop34h 25m

Dublin

sáb. 12/6

10:10 am-4:45 pm

1 stop12h 35m

$461

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

lun. 12/1

5:24 pm-7:10 am

2 stops31h 46m

Dublin

lun. 12/8

9:00 am-12:15 pm

2 stops33h 15m

$462

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dom. 11/16

7:10 am-6:20 pm

2 stops29h 10m

Dublin

sáb. 11/22

10:10 am-4:45 pm

1 stop12h 35m

$471

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 11/11

9:50 pm-5:10 pm

1 stop13h 20m

Dublin

dom. 11/16

9:15 am-8:05 pm

1 stop16h 50m

$476

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 $558. 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 $562.

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 $758. 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 $845. 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 $808.

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 $704 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 $641 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 49% 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	$452
Fastest flight time	7h 20m
Direct flights	Every day
Airports in Ireland	1 airport

The best one-way flight to Ireland from Illinois in the past 72 hours is $452. The best round-trip flight deal from Illinois to Ireland found on momondo in the last 72 hours is $593.

The fastest flight from Illinois to Ireland takes 7h 20m

Direct flights go from Illinois to Ireland every day.

There is 1 airport near Ireland: Dublin (DUB)

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 November 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 21.61% of the total bookings. Other popular models include Boeing 767-300 with 17.71%, Boeing 787 Dreamliner with 17.27%, and Airbus A330-300 with 13.82%.

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 2,907 reviews	Search JetBlue flights
Icelandair	PriceFrom $346	Free Cancellation	Rating 7.1 572 reviews	Search Icelandair flights
TAP AIR PORTUGAL	PriceFrom $393	Free Cancellation	Rating 7.1 2,048 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $400	Free Cancellation	Rating 7.4 1,564 reviews	Search Scandinavian Airlines flights
SWISS	PriceFrom $473	Free Cancellation	Rating 7.5 1,779 reviews	Search SWISS flights
Lufthansa	PriceFrom $476	Free Cancellation	Rating 6.8 7,558 reviews	Search Lufthansa flights
Aer Lingus	PriceFrom $494	Free Cancellation	Rating 7.2 1,365 reviews	Search Aer Lingus flights
British Airways	PriceFrom $512	Free Cancellation	Rating 6.7 7,500 reviews	Search British Airways flights
United Airlines	PriceFrom $522	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Air Canada	PriceFrom $523	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada 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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Popular cities in Ireland

Flights to Dublinfrom $314

Flights to Shannon, Clarefrom $347

Flights to Corkfrom $392

Flights to Knockfrom $655

Flights to Milltown (Kerry)from $646

Flights to Donegalfrom $446

Cheap flights from Illinois to Ireland from $208

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 11/11. 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

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Find the cheapest flights from Illinois to Ireland

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Aer Lingus flights from Illinois to Ireland

Our best Aer Lingus deals on Illinois to Ireland flight tickets

Delta flights from Illinois to Ireland

Our best Delta deals on Illinois to Ireland flight tickets

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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 49% on your flight if you consider stops on a Illinois to Ireland flight.

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

Aer Lingus, Scandinavian Airlines, and JetBlue 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 November 2025, 12 flights take off from Illinois and land in Ireland each day. The most common flight departure time for this route is 6:00PM, with 63% of daily flights taking off in the evening.

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

As of November 2025, 85 flights take off from Illinois and land in Ireland each week. The most common flight departure day for this route is Wed, with 15% 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