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Cheap flights from Reykjavik Keflavik Intl Airport to Chicago from $401

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Reykjavik Keflavik Intl Airport to Chicago departing on 4/7. 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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Find the cheapest flights from Reykjavik Keflavik Intl Airport to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
Icelandair Logo
7:25 pm - 6:40 am
ORD
-
KEF
6h 15mnonstop
$504Icelandair
Thu, Apr 30 - Thu, May 14
Icelandair Logo
7:45 pm - 9:25 pm
KEF
-
ORD
6h 40mnonstop
Icelandair Logo
7:25 pm - 6:40 am
ORD
-
KEF
6h 15mnonstop
$582Icelandair
Wed, Jul 1 - Thu, Jul 9
Icelandair Logo
4:30 pm - 6:20 pm
KEF
-
ORD
6h 50mnonstop
Icelandair Logo
7:25 pm - 6:40 am
ORD
-
KEF
6h 15mnonstop
$589Icelandair
Thu, Mar 26 - Wed, Apr 1
Icelandair Logo
4:30 pm - 6:20 pm
KEF
-
ORD
6h 50mnonstop
Icelandair Logo
7:30 pm - 6:45 am
ORD
-
KEF
6h 15mnonstop
$621Icelandair
Wed, Mar 18 - Wed, Mar 25
Multiple Airlines Logo
5:00 pm - 12:22 am
KEF
-
ORD
12h 22m
1 stop
Multiple Airlines Logo
7:17 am - 6:15 am
ORD
-
KEF
17h 58m
2 stops
$631Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
Multiple Airlines Logo
5:00 pm - 11:25 am
KEF
-
ORD
23h 25m
2 stops
Multiple Airlines Logo
6:20 pm - 6:05 am
ORD
-
KEF
30h 45m
1 stop
$640Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
5:00 pm - 12:40 am
KEF
-
ORD
13h 40m
1 stop
Multiple Airlines Logo
12:05 pm - 6:15 am
ORD
-
KEF
13h 10m
1 stop
$672Multiple Airlines
Sat, Feb 28 - Mon, Mar 9
Multiple Airlines Logo
5:00 pm - 12:40 am
KEF
-
ORD
13h 40m
1 stop
Multiple Airlines Logo
12:05 pm - 6:15 am
ORD
-
KEF
13h 10m
1 stop
$676Multiple Airlines
Sat, Feb 28 - Mon, Mar 9
Virgin Atlantic Logo
11:25 am - 10:28 pm
KEF
-
MDW
16h 03m
2 stops
Virgin Atlantic Logo
1:59 pm - 7:40 am
MDW
-
KEF
12h 41m
1 stop
$854Virgin Atlantic
Thu, Apr 30 - Thu, May 14
Delta Logo
11:25 am - 10:28 pm
KEF
-
MDW
16h 03m
2 stops
Delta Logo
1:22 pm - 9:30 am
MDW
-
KEF
15h 08m
2 stops
$856Delta
Thu, Apr 30 - Thu, May 14

Icelandair flights from Reykjavik Keflavik Intl Airport to Chicago

Our best Icelandair deals on Reykjavik Keflavik Intl Airport to Chicago flight tickets
Icelandair
Apr 30
KEF4:25 pmReykjavik Keflavik Intl
6h 50m
ORD6:15 pmChicago O'Hare Intl
May 14
ORD7:25 pmChicago O'Hare Intl
6h 15m
KEF6:40 amReykjavik Keflavik Intl
$504
Icelandair
Jul 1
KEF7:45 pmReykjavik Keflavik Intl
6h 40m
ORD9:25 pmChicago O'Hare Intl
Jul 9
ORD7:25 pmChicago O'Hare Intl
6h 15m
KEF6:40 amReykjavik Keflavik Intl
$582
Icelandair
Mar 26
KEF4:30 pmReykjavik Keflavik Intl
6h 50m
ORD6:20 pmChicago O'Hare Intl
Apr 1
ORD7:25 pmChicago O'Hare Intl
6h 15m
KEF6:40 amReykjavik Keflavik Intl
$589

United Airlines flights from Reykjavik Keflavik Intl Airport to Chicago

Our best United Airlines deals on Reykjavik Keflavik Intl Airport to Chicago flight tickets
United Airlines
Jul 1
KEF12:00 pmReykjavik Keflavik Intl
6h 50m
ORD1:50 pmChicago O'Hare Intl
Jul 9
ORD2:00 pmChicago O'Hare Intl
12h 00m
2 stops
KEF7:00 amReykjavik Keflavik Intl
$834
United Airlines
Jul 1
KEF11:30 amReykjavik Keflavik Intl
15h 24m
2 stops
ORD9:54 pmChicago O'Hare Intl
Jul 9
ORD11:15 amChicago O'Hare Intl
14h 45m
2 stops
KEF7:00 amReykjavik Keflavik Intl
$840

momondo Fare Finder

 
Customize your flight search to find flights from Reykjavik Keflavik Intl Airport to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Thu 4/30

4:25 pm-6:15 pm

Nonstop6h 50m

Chicago O'Hare Intl

Thu 5/14

7:25 pm-6:40 am

Nonstop6h 15m

$504

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Wed 7/1

7:45 pm-9:25 pm

Nonstop6h 40m

Chicago O'Hare Intl

Thu 7/9

7:25 pm-6:40 am

Nonstop6h 15m

$582

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Thu 3/26

4:30 pm-6:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

Wed 4/1

7:25 pm-6:40 am

Nonstop6h 15m

$589

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Wed 3/18

4:30 pm-6:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

Wed 3/25

7:30 pm-6:45 am

Nonstop6h 15m

$621

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Wed 3/18

5:00 pm-12:22 am

1 stop12h 22m

Chicago O'Hare Intl

Wed 3/25

7:17 am-6:15 am

2 stops17h 58m

$631

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Thu 3/19

5:00 pm-11:25 am

2 stops23h 25m

Chicago O'Hare Intl

Thu 3/26

6:20 pm-6:05 am

1 stop30h 45m

$640

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Sat 2/28

5:00 pm-12:40 am

1 stop13h 40m

Chicago O'Hare Intl

Mon 3/9

12:05 pm-6:15 am

1 stop13h 10m

$672

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Sat 2/28

5:00 pm-12:40 am

1 stop13h 40m

Chicago O'Hare Intl

Mon 3/9

12:05 pm-6:15 am

1 stop13h 10m

$676

ReykjavikChicago

KEF - MDW

KEFMDW

Reykjavik Keflavik Intl

Thu 4/30

11:25 am-10:28 pm

2 stops16h 03m

Chicago Midway

Thu 5/14

1:59 pm-7:40 am

1 stop12h 41m

$854

ReykjavikChicago

KEF - MDW

KEFMDW

Reykjavik Keflavik Intl

Thu 4/30

11:25 am-10:28 pm

2 stops16h 03m

Chicago Midway

Thu 5/14

1:22 pm-9:30 am

2 stops15h 08m

$856

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Reykjavik Keflavik Intl Airport to Chicago

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 day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $592. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Reykjavik Keflavik Intl Airport to Chicago for around $1,450.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Reykjavik Keflavik Intl Airport to Chicago during this time can be as low as $548. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $870.

What is the cheapest Reykjavik Keflavik Intl to Chicago flight route?

Fly from Reykjavik Keflavik Intl to Chicago O'Hare Intl for the best Reykjavik Keflavik Intl - Chicago flight prices

What cabin class options are available on Reykjavik Keflavik Intl to Chicago flights?

There are 3 cabin classes available to choose from on Reykjavik Keflavik Intl to Chicago 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 Reykjavik Keflavik Intl Airport to Chicago flights?

You could potentially save up to 12% on your flight if you consider stops on a Reykjavik Keflavik Intl Airport to Chicago flight.

When to book flights from Reykjavik Keflavik Intl Airport to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Reykjavik Keflavik Intl Airport to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Reykjavik Keflavik Intl Airport to Chicago (KEF to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Reykjavik Keflavik Intl Airport to Chicago

Fastest flight time

6h 40m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Chicago

3 airports
The fastest flight from Reykjavik Keflavik Intl Airport to Chicago takes 6h 40m
Direct flights go from Reykjavik Keflavik Intl Airport to Chicago on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Icelandair.
There are 3 airports in Chicago. From Reykjavik Keflavik Intl Airport there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

  • How far is Reykjavik Keflavik Intl to Chicago by plane?

    The distance between Reykjavik Keflavik Intl and Chicago is about 2931.4 mi. In terms of flight time, this usually takes a little over 6h 40m.

  • When did momondo last update prices for flights from Reykjavik Keflavik Intl Airport to Chicago?

    Prices for flights from Reykjavik Keflavik Intl Airport to Chicago are updated daily.

  • How old do you have to be to fly from Reykjavik Keflavik Intl Airport to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Reykjavik Keflavik Intl Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Reykjavik Keflavik Intl Airport to Chicago?

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
Munster
Crown Point
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Reykjavik to Chicago?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Reykjavik to Chicago. momondo saves you time and could save you money on your trip.

Can I find flights from Reykjavik to Chicago with flexible booking policies on momondo?

All flight searches from Reykjavik to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Reykjavik to Chicago?

momondo helps you find the best flight between Reykjavik and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Reykjavik to Chicago right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Reykjavik and alert you when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport