HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$339+ Cheap flights from Keflavik Intl (KEF) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — ORD
feb. 7 — feb. 141
sáb. 2/7
sáb. 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Keflavik Intl to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Keflavik Intl to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$538
(Gotogate)

One-way from

$339
(Kiwi.com)

Good one-way deal

$532 or less
Provider with most accurate pricing for Reykjavik Keflavik Intl-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-Chicago O'Hare Intl flights.
Search Deals
From Reykjavik Keflavik Intl to Chicago O'Hare Intl
Search Deals
One-way flight from Reykjavik Keflavik Intl to Chicago O'Hare Intl
Search Deals
Price to beat on a one-way flight from Reykjavik Keflavik Intl to Chicago O'Hare Intl.
Search Deals

Find flight deals from Keflavik Intl to O'Hare Intl

Cheapest flights from Keflavik Intl to O'Hare Intl
Explore the most affordable flight options available from Keflavik Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 8, 2026.

This Gotogate deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/24:30 pmKEF - ORD
Nonstop6h 50mIcelandair
mié. 3/117:30 pmORD - KEF
Nonstop6h 15mIcelandair
Deal found 1/7$538
This Cheapflightsfares deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/244:25 pmKEF - ORD
Nonstop6h 50mIcelandair
sáb. 5/3010:25 pmORD - KEF
Nonstop6h 05mIcelandair
Deal found 1/7$563
This Mytrip deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/44:30 pmKEF - ORD
Nonstop6h 50mIcelandair
mié. 2/116:30 pmORD - KEF
Nonstop6h 15mIcelandair
Deal found 1/7$584
This Mytrip deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/204:30 pmKEF - ORD
Nonstop6h 50mIcelandair
vie. 2/276:30 pmORD - KEF
Nonstop6h 15mIcelandair
Deal found 1/6$585
This Icelandair deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/64:30 pmKEF - ORD
Nonstop6h 50mIcelandair
mié. 2/116:30 pmORD - KEF
Nonstop6h 15mIcelandair
Deal found 1/6$621
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/411:30 amKEF - ORD
1 stop35h 15mScandinavian Airlines
mié. 2/117:20 pmORD - KEF
1 stop22h 00mScandinavian Airlines
Deal found 1/6$668
This Scandinavian Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/511:30 amKEF - ORD
2 stops35h 15mScandinavian Airlines
mié. 2/117:00 amORD - KEF
2 stops21h 45mScandinavian Airlines
Deal found 1/6$683
This Vliegwinkel deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/24:30 pmKEF - ORD
Nonstop6h 50mMultiple Airlines
mié. 3/1112:41 pmORD - KEF
1 stop12h 29mMultiple Airlines
Deal found 1/6$684

Cheapflights Fare Finder

 
Customize your flight search to find flights from Keflavik Intl to O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated enero 8, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Keflavik Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

lun. 3/2

4:30 pm-5:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

mié. 3/11

7:30 pm-6:45 am

Nonstop6h 15m

$538

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

dom. 5/24

4:25 pm-6:15 pm

Nonstop6h 50m

Chicago O'Hare Intl

sáb. 5/30

10:25 pm-9:30 am

Nonstop6h 05m

$563

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

mié. 2/4

4:30 pm-5:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

mié. 2/11

6:30 pm-6:45 am

Nonstop6h 15m

$584

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

vie. 2/6

4:30 pm-5:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

mié. 2/11

6:30 pm-6:45 am

Nonstop6h 15m

$621

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

mié. 2/4

11:30 am-4:45 pm

1 stop35h 15m

Chicago O'Hare Intl

mié. 2/11

7:20 pm-11:20 pm

1 stop22h 00m

$668

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

jue. 2/5

11:30 am-4:45 pm

2 stops35h 15m

Chicago O'Hare Intl

mié. 2/11

7:00 am-10:45 am

2 stops21h 45m

$683

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

jue. 2/5

11:30 am-4:45 pm

2 stops35h 15m

Chicago O'Hare Intl

jue. 2/12

7:20 pm-11:20 pm

1 stop22h 00m

$689

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

lun. 3/2

4:30 pm-5:20 pm

Nonstop6h 50m

Chicago O'Hare Intl

mié. 3/11

6:04 am-6:10 am

1 stop19h 06m

$694

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

mar. 5/19

9:35 am-8:25 pm

2 stops39h 50m

$406

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

sáb. 1/17

4:30 pm-5:20 pm

Nonstop6h 50m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 18 results
1
2

Compare providers for flights from Keflavik Intl to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Keflavik Intl to O'Hare Intl in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Reykjavik Keflavik Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Chicago O'Hare Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Keflavik Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Keflavik Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport

What is the cheapest time of day to fly from KEF to ORD?

Find hourly flight availability from Keflavik Intl to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 8, 2026.

When flying from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated enero 8, 2026.
Get a feel of what it's like to fly with Icelandair from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
593 reviews

Overall

7.1

Comfort

6.9

Boarding

7.2

Food

6.2

Crew

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
Icelandair
7.1
Good
593 reviews
Icelandair
7.1
Good
593 reviews

Overall

7.1

Comfort

6.9

Boarding

7.2

Food

6.2

Crew

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport?

    There are many flights that can get you from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport in 6h 50m. Fly via Icelandair to get the fastest option. The distance between Reykjavik Keflavik Intl Airport and Chicago O'Hare Intl Airport is about 2934 mi. All flights are typically nonstop.

  • What is the cheapest airline to fly from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport round-trip?

    Our cheapest airline available from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport is Icelandair. Our recent data shows that you can find tickets from as low as $469 on this airline.

  • What are the cheapest flights from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport?

    While on average a flight from Reykjavik Keflavik Intl Airport to Chicago O'Hare Intl Airport is generally $1,006, our data shows the cheapest flight currently is $462. When looking at the most popular route, (Reykjavik Keflavik Intl - Chicago O'Hare Intl), you can expect to pay $538 for that flight.

  • Can I find deals for flights from Keflavik Intl to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to O'Hare Intl.

  • Can I find deals for business class flights from Keflavik Intl to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Keflavik Intl to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora
Evanston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Keflavik Intl to O'Hare Intl

Discover the top airline that operate flights from Keflavik Intl to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$469Average$570FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.