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Find cheap Finnair flights to Chicago

CMH — CHI
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest Finnair flights from United Kingdom to Chicago
Explore the most affordable Finnair flight options available from United Kingdom to Chicago. Find the lowest fares with prices last updated on 27 July 2026.

Wed 26/811:10
LHR
-
ORD
Nonstop8h 40m
Finnair
Wed 16/920:50
ORD
-
LHR
Nonstop8h 00m
Finnair
Deal found 27/7£616
Sun 30/810:20
LHR
-
ORD
1 stop13h 30m
Finnair
Thu 10/922:25
ORD
-
LHR
Nonstop7h 50m
Finnair
Deal found 27/7£630
Sat 22/812:15
LHR
-
ORD
Nonstop8h 45m
Finnair
Tue 8/920:45
ORD
-
LHR
Nonstop7h 45m
Finnair
Deal found 23/7£648

Flights to Chicago with Finnair at a glance

Find detailed information about Finnair flights from United Kingdom to Chicago. Explore the options provided by Finnair to plan your journey from United Kingdom to Chicago. Data last updated 27 July 2026.

Popular in

July

Cheapest in

October

Average price

£613

Return from

£544

One-way from

£397
Highest demand for flights to Chicago with Finnair; 16% potential price increase.
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Best time to find cheap flights to Chicago with Finnair; 3% potential price drop.
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Average price for flights to Chicago with Finnair (return).
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Finnair
  • Finnair
  • 14/9-28/9
  • 1 total stop
  • 27h 10m total
  • United Kingdom to Chicago
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Finnair
  • Finnair
  • 30/9
  • Nonstop
  • 8h 50m total
  • United Kingdom to Chicago
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Cheapflights Insights

Find cheap Finnair flights to Chicago

How long is the flight to Chicago with Finnair?

On average, Finnair flights from the United Kingdom to Chicago take 10 hours 13 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.

Finnair weekly flight availability to Chicago

The most flights to Chicago operated by Finnair are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

FAQs about flights to Chicago with Finnair

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

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

  • Is Finnair 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 Finnair that fly to Chicago?

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

  • How much is a Finnair flight to Chicago?

    The average price for a return flight with Finnair is £654, while a one-way flight costs around £723.

See more FAQs

Reviews of Finnair

See what Cheapflights users have to say about their Finnair experience.
Finnair
7.6
Good
1,423 reviews
Check prices
Overview

Entertainment

6.9

Food

6.7

Comfort

7.4

Boarding

7.7

Crew

8.2

Popular Finnair flights

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Airports serving Chicago

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Flights to Midway
Flights to O'Hare Intl
Flights from Midway
Flights from O'Hare Intl