How far in advance should I book tickets for a flight with Icelandair from London to Chicago?

Generally, when trying to get a below-average price for your ticket, try to book around 7 days before departure. For the cheapest possible price, our data suggests booking 16 days before departure.

Is Icelandair the cheapest airline to fly with from London to Chicago?

Yes, based on our data, Icelandair is the cheapest airline to fly the route with an average price of £640 return. The next cheapest options are Scandinavian Airlines and Austrian Airlines, with return flights costing £670 and £739 on average respectively.

What is the cheapest Icelandair flight from London to Chicago?

In the last 3 days, the lowest price for a flight with Icelandair from London to Chicago was £563 for a return flight and £626 for a one-way flight.

Does Icelandair fly direct to Chicago from London?

No, Icelandair does not fly the route directly.

What’s the cheapest day of the week to fly from London to Chicago with Icelandair?

On average, the cheapest day of the week to fly from London to Chicago with Icelandair is Sunday, when prices are around £394. The most expensive day is generally Wednesday, when the average price is around £478.

What’s the cheapest month to fly from London to Chicago with Icelandair?

The cheapest month for Icelandair flights to Chicago from London is generally February, where plane tickets cost £468 on average. If possible, try to avoid the most expensive months of July and August, when tickets cost £633 and £688 respectively.

£363 Cheap Icelandair Flights from London to Chicago

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Cheap Icelandair Flight Deals from London to Chicago

Here are some of the best deals found on KAYAK recently from Icelandair for return flights from London to Chicago 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.

Round-trip

One-way

Last minute

Recent return Icelandair flight deals from London to Chicago

KAYAK's recommended return flight Icelandair deals departing in the coming months from London to Chicago.

Discover the best prices for you by selecting your travel dates on KAYAK.

Choose your dates

15:40 - 21:15LGW-ORD

11h 35m1 stop

19:25 - 11:45ORD-LGW

10h 20m1 stop

£363Icelandair

Find Deal

Fri, 22 Aug - Sat, 6 Sep

15:40 - 21:15LGW-ORD

11h 35m1 stop

19:25 - 14:35ORD-LGW

13h 10m1 stop

£366Icelandair

Find Deal

Fri, 22 Aug - Mon, 15 Sep

13:00 - 18:15LGW-ORD

11h 15m1 stop

19:25 - 14:35ORD-LGW

13h 10m1 stop

£367Icelandair

Find Deal

Thu, 4 Sep - Mon, 8 Sep

15:40 - 18:15LGW-ORD

32h 35m1 stop

19:25 - 14:40ORD-LGW

13h 15m1 stop

£369Icelandair

Find Deal

Mon, 8 Sep - Sat, 13 Sep

13:00 - 21:15LGW-ORD

14h 15m1 stop

19:25 - 14:40ORD-LGW

13h 15m1 stop

£369Icelandair

Find Deal

Sat, 30 Aug - Sat, 13 Sep

15:40 - 21:15LGW-ORD

11h 35m1 stop

22:15 - 14:40ORD-LGW

10h 25m1 stop

£375Icelandair

Find Deal

Fri, 22 Aug - Sat, 6 Sep

15:40 - 18:15LGW-ORD

32h 35m1 stop

19:25 - 14:40ORD-LGW

13h 15m1 stop

£375Icelandair

Find Deal

Wed, 17 Sep - Sat, 27 Sep

15:40 - 18:15LGW-ORD

32h 35m1 stop

19:25 - 14:35ORD-LGW

13h 10m1 stop

£376Icelandair

Find Deal

Mon, 15 Sep - Mon, 22 Sep

15:40 - 18:15LGW-ORD

32h 35m1 stop

19:25 - 14:35ORD-LGW

13h 10m1 stop

£378Icelandair

Find Deal

Mon, 22 Sep - Mon, 29 Sep

13:00 - 21:15LGW-ORD

14h 15m1 stop

19:25 - 14:40ORD-LGW

13h 15m1 stop

£386Icelandair

Find Deal

Thu, 28 Aug - Tue, 16 Sep

Low season	February
High season	July
Cheapest flight	£363
Average price round-trip	£505

Best time to beat the crowds (19% less expensive on average)

Most popular time to fly (23% more expensive on average)

Flight from London Gatwick Airport to Chicago O'Hare Airport

(price for this month)

When to Book Flights with Icelandair from London to Chicago

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with Icelandair from London to Chicago?
Generally, when trying to get a below-average price for your ticket, try to book around 7 days before departure. For the cheapest possible price, our data suggests booking 16 days before departure.
Is Icelandair the cheapest airline to fly with from London to Chicago?
Yes, based on our data, Icelandair is the cheapest airline to fly the route with an average price of £640 return. The next cheapest options are Scandinavian Airlines and Austrian Airlines, with return flights costing £670 and £739 on average respectively.
What is the cheapest Icelandair flight from London to Chicago?
In the last 3 days, the lowest price for a flight with Icelandair from London to Chicago was £563 for a return flight and £626 for a one-way flight.
Does Icelandair fly direct to Chicago from London?
No, Icelandair does not fly the route directly.
What’s the cheapest day of the week to fly from London to Chicago with Icelandair?
On average, the cheapest day of the week to fly from London to Chicago with Icelandair is Sunday, when prices are around £394. The most expensive day is generally Wednesday, when the average price is around £478.
What’s the cheapest month to fly from London to Chicago with Icelandair?
The cheapest month for Icelandair flights to Chicago from London is generally February, where plane tickets cost £468 on average. If possible, try to avoid the most expensive months of July and August, when tickets cost £633 and £688 respectively.

See more FAQs

7.0

GoodBased on 484 verified guest reviews

7.1Boarding

8.0Crew

6.3Food

7.0Comfort

7.1Entertainment

Pros +

"The crew was nice, however, they also give varying information." (in 564 reviews)
"Easy flight, and boarded in the front and back of the plane." (in 418 reviews)

10.0 Wonderful

James, Apr 2025

MAN-KEF

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

10.0 Wonderful

Craig, Apr 2025

MAN-KEF

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

8.0 Very Good

Verified traveller, Feb 2025

KEF-ORD

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

2.0 Poor

Verified traveller, Feb 2025

HEL-KEF

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

10.0 Wonderful

Marielle, Jan 2025

AMS-KEF

The flights were in time and the bags arrived. well done

2.0 Poor

Verified traveller, Jan 2025

YVR-KEF

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

2.0 Poor

Derek, Jan 2025

YYZ-KEF

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

6.0 Okay

Verified traveller, Jan 2025

YYZ-KEF

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

6.0 Okay

Marielle, Jan 2025

ORD-KEF

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

2.0 Poor

Mugdha, Dec 2024

KEF-BOS

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(