Find cheap Aer Lingus flights to Illinois from £407

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Flight Deals

Cheap Aer Lingus Flight Deals to Illinois

 
Here are some of the best deals found on KAYAK recently from Aer Lingus to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return Aer Lingus flight deals from the United Kingdom to Illinois

Wed, 10 Dec - Wed, 17 Dec
Aer Lingus Logo
07:50 - 14:00LHR-ORD
12h 10m1 stop
Aer Lingus Logo
15:50 - 09:05ORD-LHR
11h 15m1 stop
£490Aer Lingus
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Mon, 8 Dec - Tue, 23 Dec
Aer Lingus Logo
08:50 - 14:00LHR-ORD
11h 10m1 stop
Aer Lingus Logo
15:50 - 08:05ORD-LHR
10h 15m1 stop
£509Aer Lingus
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Tue, 2 Dec - Sun, 7 Dec
Aer Lingus Logo
08:05 - 14:00MAN-ORD
11h 55m1 stop
Aer Lingus Logo
15:50 - 09:30ORD-MAN
11h 40m1 stop
£509Aer Lingus
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Wed, 3 Dec - Mon, 15 Dec
Aer Lingus Logo
08:05 - 14:00MAN-ORD
11h 55m1 stop
Aer Lingus Logo
15:50 - 09:30ORD-MAN
11h 40m1 stop
£528Aer Lingus
Find Deal
Wed, 17 Dec - Tue, 23 Dec
Aer Lingus Logo
07:50 - 14:00LHR-ORD
12h 10m1 stop
Aer Lingus Logo
15:50 - 09:05ORD-LHR
11h 15m1 stop
£536Aer Lingus
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Tue, 9 Dec - Tue, 13 Jan
Aer Lingus Logo
08:20 - 17:55EDI-ORD
15h 35m1 stop
Aer Lingus Logo
21:00 - 19:50ORD-EDI
16h 50m1 stop
£547Aer Lingus
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Fri, 6 Mar - Fri, 6 Mar
Aer Lingus Logo
08:50 - 14:00LHR-ORD
11h 10m1 stop
Aer Lingus Logo
21:00 - 13:25ORD-LHR
10h 25m1 stop
£552Aer Lingus
Find Deal
Tue, 9 Dec - Fri, 16 Jan
Aer Lingus Logo
12:00 - 17:55EDI-ORD
11h 55m1 stop
Aer Lingus Logo
21:00 - 13:00ORD-EDI
10h 00m1 stop
£552Aer Lingus
Find Deal
Tue, 9 Dec - Thu, 15 Jan
Aer Lingus Logo
09:35 - 17:55EDI-ORD
14h 20m1 stop
Aer Lingus Logo
21:00 - 14:45ORD-EDI
11h 45m1 stop
£553Aer Lingus
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Tue, 9 Dec - Fri, 16 Jan
Aer Lingus Logo
09:35 - 17:55EDI-ORD
14h 20m1 stop
Aer Lingus Logo
21:00 - 13:00ORD-EDI
10h 00m1 stop
£554Aer Lingus
Find Deal
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Good to know

Low seasonJanuary
Cheapest flight£407
Average price round-trip£586
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from London Heathrow Airport to Chicago
(price for this month)

KAYAK's insights & trends for flights to Illinois

Get data-powered insights and trends for flights to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Illinois?

The average price of all flights from the United Kingdom to Illinois clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Illinois is Wednesday when return tickets can be as cheap as £625. On the other hand, the most expensive day to fly is Saturday, when return prices are £688 on average.

What is the cheapest month to fly from the United Kingdom to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from the United Kingdom to Illinois is March, when tickets cost £506 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is £794 and £750 respectively.

How far in advance should I book a flight from the United Kingdom to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from the United Kingdom to Illinois, you should book around 2 weeks before departure, which saves you about 21% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

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Aer Lingus customer reviews

7.2
Good1,370 verified ratings
6.9Entertainment
7.4Boarding
7.1Comfort
8.0Crew
6.6Food
Cons -
  • Food & Beverage service almost nonexistent. (in 221 reviews)
Show reviews that mention
Traveller rating:
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A
8.0 Very Good
The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great
A
4.0 Mediocre
The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.
A
4.0 Mediocre
It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.
H
4.0 Mediocre
My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.
A
4.0 Mediocre
No leg room. Warm beer and soda
D
8.0 Very Good
Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.
D
2.0 Poor
This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!
A
8.0 Very Good
A complimentary cup of water would have been appreciated
A
8.0 Very Good
I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.
N
8.0 Very Good
I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.
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Everything you need to know for your flight to Illinois