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Cheap flights from Reykjavik Keflavik Intl Airport to Chicago from $307

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 9/11. 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

Logo
3:05 pm - 11:20 pmKEF-ORD
13h 15m1 stop
Logo
6:10 am - 4:55 amORD-KEF
17h 45m1 stop
$504
Find Deal
Sun, Sep 14 - Sun, Sep 21
Icelandair Logo
7:35 pm - 9:15 pmKEF-ORD
6h 40mnonstop
Icelandair Logo
7:25 pm - 6:40 amORD-KEF
6h 15mnonstop
$518Icelandair
Find Deal
Sun, Sep 21 - Sat, Sep 27
Logo
3:05 pm - 11:20 pmKEF-ORD
13h 15m1 stop
Logo
6:11 pm - 4:55 amORD-KEF
29h 44m1 stop
$519
Find Deal
Mon, Sep 15 - Mon, Sep 22
Logo
3:05 pm - 11:20 pmKEF-ORD
13h 15m1 stop
Logo
6:11 pm - 4:55 amORD-KEF
29h 44m1 stop
$525
Find Deal
Mon, Sep 15 - Mon, Sep 22
Logo
3:05 pm - 11:20 pmKEF-ORD
13h 15m1 stop
Logo
5:05 am - 4:55 amORD-KEF
18h 50m2 stops
$540
Find Deal
Sun, Sep 21 - Sat, Sep 27
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
$562Icelandair
Find Deal
Mon, Dec 1 - Thu, Dec 4
Scandinavian Airlines Logo
7:50 am - 4:45 pmKEF-ORD
14h 55m1 stop
Scandinavian Airlines Logo
7:20 pm - 10:30 amORD-KEF
57h 10m2 stops
$623Scandinavian Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 4
Scandinavian Airlines Logo
7:50 am - 4:45 pmKEF-ORD
14h 55m1 stop
Scandinavian Airlines Logo
7:20 pm - 11:55 pmORD-KEF
22h 35m1 stop
$680Scandinavian Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 4
Lufthansa Logo
12:25 am - 12:55 pmKEF-ORD
17h 30m1 stop
Lufthansa Logo
4:00 pm - 1:05 pmORD-KEF
16h 05m1 stop
$734Lufthansa
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Sun, Sep 21 - Wed, Oct 1
Virgin Atlantic Logo
11:25 am - 9:36 pmKEF-MDW
15h 11m2 stops
Virgin Atlantic Logo
9:35 am - 9:30 amMDW-KEF
18h 55m2 stops
$772Virgin Atlantic
Find Deal
Mon, Sep 15 - Mon, Sep 22

Icelandair flights from Reykjavik Keflavik Intl Airport to Chicago

Our best Icelandair deals on Reykjavik Keflavik Intl Airport to Chicago flight tickets
Icelandair
Sep 21
KEF7:35 pmReykjavik Keflavik Intl
6h 40m
ORD9:15 pmChicago O'Hare Intl
Sep 27
ORD7:25 pmChicago O'Hare Intl
6h 15m
KEF6:40 amReykjavik Keflavik Intl
$518
Find similar
Icelandair
Dec 1
KEF4:30 pmReykjavik Keflavik Intl
6h 50m
ORD5:20 pmChicago O'Hare Intl
Dec 4
ORD6:30 pmChicago O'Hare Intl
6h 15m
KEF6:45 amReykjavik Keflavik Intl
$562
Find similar
Icelandair
Dec 1
KEF4:30 pmReykjavik Keflavik Intl
6h 50m
ORD5:20 pmChicago O'Hare Intl
Dec 4
ORD6:30 pmChicago O'Hare Intl
6h 15m
KEF6:45 amReykjavik Keflavik Intl
$564
Find similar

Lufthansa flights from Reykjavik Keflavik Intl Airport to Chicago

Our best Lufthansa deals on Reykjavik Keflavik Intl Airport to Chicago flight tickets
Lufthansa
Sep 21
KEF12:25 amReykjavik Keflavik Intl
17h 30m
1 stop
ORD12:55 pmChicago O'Hare Intl
Oct 1
ORD4:00 pmChicago O'Hare Intl
16h 05m
1 stop
KEF1:05 pmReykjavik Keflavik Intl
$734
Find similar
Lufthansa
Aug 16
KEF1:15 amReykjavik Keflavik Intl
16h 15m
1 stop
ORD12:30 pmChicago O'Hare Intl
Aug 21
ORD9:10 pmChicago O'Hare Intl
6h 20m
KEF8:30 amReykjavik Keflavik Intl
$1,329
Find similar
Lufthansa
Aug 16
KEF1:15 amReykjavik Keflavik Intl
16h 15m
1 stop
ORD12:30 pmChicago O'Hare Intl
Aug 21
ORD10:30 pmChicago O'Hare Intl
20h 05m
1 stop
KEF11:35 pmReykjavik Keflavik Intl
$1,371
Find similar

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 August 2, 2025.
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

Sun 9/14

3:05 pm-11:20 pm

1 stop13h 15m

Chicago O'Hare Intl

Sun 9/21

6:10 am-4:55 am

1 stop17h 45m

$504

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Sun 9/21

7:35 pm-9:15 pm

Nonstop6h 40m

Chicago O'Hare Intl

Sat 9/27

7:25 pm-6:40 am

Nonstop6h 15m

$518

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 9/15

3:05 pm-11:20 pm

1 stop13h 15m

Chicago O'Hare Intl

Mon 9/22

6:11 pm-4:55 am

1 stop29h 44m

$519

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 9/15

3:05 pm-11:20 pm

1 stop13h 15m

Chicago O'Hare Intl

Mon 9/22

6:11 pm-4:55 am

1 stop29h 44m

$525

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Sun 9/21

3:05 pm-11:20 pm

1 stop13h 15m

Chicago O'Hare Intl

Sat 9/27

5:05 am-4:55 am

2 stops18h 50m

$540

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 12/1

4:30 pm-5:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

Thu 12/4

6:30 pm-6:45 am

Nonstop6h 15m

$562

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 12/1

7:50 am-4:45 pm

1 stop14h 55m

Chicago O'Hare Intl

Thu 12/4

7:20 pm-10:30 am

2 stops57h 10m

$623

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 12/1

7:50 am-4:45 pm

1 stop14h 55m

Chicago O'Hare Intl

Thu 12/4

7:20 pm-11:55 pm

1 stop22h 35m

$680

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Sun 9/21

12:25 am-12:55 pm

1 stop17h 30m

Chicago O'Hare Intl

Wed 10/1

4:00 pm-1:05 pm

1 stop16h 05m

$734

ReykjavikChicago

KEF - MDW

KEFMDW

Reykjavik Keflavik Intl

Mon 9/15

11:25 am-9:36 pm

2 stops15h 11m

Chicago Midway

Mon 9/22

9:35 am-9:30 am

2 stops18h 55m

$772

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 $770. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Reykjavik Keflavik Intl Airport to Chicago for around $1,099.

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 $878.

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 16% 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

Best Price Found

$307

Fastest flight time

6h 40m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Chicago

2 airports
The best one-way flight to Chicago from Reykjavik Keflavik Intl Airport in the past 72 hours is $307. The best round-trip flight deal from Reykjavik Keflavik Intl Airport to Chicago found on momondo in the last 72 hours is $504.
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, Tuesday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Icelandair.
There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)
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  • 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 many operators does momondo search for flights from Reykjavik Keflavik Intl Airport to Chicago?

  • 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?

Best airlines flying from Reykjavik Keflavik Intl Airport to Chicago

Compare and see reviews for airlines that fly from Reykjavik Keflavik Intl Airport to Chicago with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $483Free CancellationRating
7.0
520 reviews
Search Icelandair flights

  • Icelandair Flights From Reykjavik Keflavik Intl Airport to Chicago

    Icelandair flies from Reykjavik Keflavik Intl Airport to Chicago around 10 times per week, with 520 momondo users rating the airline 7.0/10. The cheapest Icelandair deal from Reykjavik Keflavik Intl Airport to Chicago in the last 72 hours was $483 (round-trip), much lower than the average airfare cost of $548 for Icelandair flights on this route.

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
Crown Point
Munster
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