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Find cheap Aer Lingus flights to Chicago

SEA — CHI
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest Aer Lingus flights from United Kingdom to Chicago
Explore the most affordable Aer Lingus flight options available from United Kingdom to Chicago. Find the lowest fares with prices last updated on 28 July 2026.

Mon 31/808:10
MAN
-
ORD
1 stop11h 50m
Aer Lingus
Wed 16/921:00
ORD
-
MAN
1 stop10h 55m
Aer Lingus
Deal found 23/7£600
Mon 31/808:10
MAN
-
ORD
1 stop11h 50m
Aer Lingus
Wed 9/915:45
ORD
-
MAN
1 stop9h 55m
Aer Lingus
Deal found 24/7£609
Sat 29/808:50
LHR
-
ORD
1 stop11h 10m
Aer Lingus
Tue 1/921:00
ORD
-
LHR
1 stop10h 30m
Aer Lingus
Deal found 24/7£613

Flights to Chicago with Aer Lingus at a glance

Find detailed information about Aer Lingus flights from United Kingdom to Chicago. Explore the options provided by Aer Lingus to plan your journey from United Kingdom to Chicago. Data last updated 28 July 2026.

Popular in

July

Cheapest in

September

Average price

£667

Return from

£510

One-way from

£384
Highest demand for flights to Chicago with Aer Lingus; 12% potential price increase.
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Best time to find cheap flights to Chicago with Aer Lingus; 2% potential price drop.
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Average price for flights to Chicago with Aer Lingus (return).
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Aer Lingus
  • Aer Lingus
  • 9/9-23/9
  • 2 total stops
  • 27h 55m total
  • United Kingdom to Chicago
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Aer Lingus
  • Aer Lingus
  • 2/11
  • 1 total stop
  • 11h 10m total
  • United Kingdom to Chicago
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Cheapflights Insights

Find cheap Aer Lingus flights to Chicago

How long is the flight to Chicago with Aer Lingus?

On average, Aer Lingus flights from the United Kingdom to Chicago take 9 hours 48 minutes. Flights to Chicago from other popular cities in the United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Aer Lingus weekly flight availability to Chicago

The most flights to Chicago operated by Aer Lingus are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

When is the best time to book a flight to Chicago with Aer Lingus?

The best time to book a flight to Chicago with Aer Lingus is 15 days before departure. On average, fares are higher if you book 85 days before departure.

FAQs about flights to Chicago with Aer Lingus

  • Which airport do Aer Lingus flights arrive at when travelling to Chicago?

    Aer Lingus flights on this route tend to land at Chicago O'Hare Intl Airport.

  • Is Aer Lingus the cheapest airline for a flight to Chicago?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average return price for flights to Chicago tends to be with Ryanair.

  • Are there alternative airlines other than Aer Lingus that fly to Chicago?

    British Airways, Icelandair and Lufthansa all fly to Chicago and offer an alternative to Aer Lingus.

  • How much is a Aer Lingus flight to Chicago?

    The average price for a return flight with Aer Lingus is £719, while a one-way flight costs around £529.

See more FAQs

Reviews of Aer Lingus

See what Cheapflights users have to say about their Aer Lingus experience.
Aer Lingus
7.3
Good
1,682 reviews
Check prices
Overview

Boarding

7.4

Comfort

7.2

Crew

8.1

Food

6.7

Entertainment

7.0

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