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Keflavik Intl

$353+ Cheap flights from O'Hare Intl (ORD) to Keflavik Intl (KEF)

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KEF
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Find cheap flights from O'Hare Intl to Keflavik Intl with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Reykjavik Keflavik Intl are usually found in April or November, booked 49 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from O'Hare Intl to Keflavik Intl

Cheapest flights from O'Hare Intl to Keflavik Intl
Explore the most affordable flight options available from O'Hare Intl to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.

This Mytrip deal was found by Cheapflights users on 7/8. 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.
Sat 8/227:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Sat 8/297:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/8$405
This Mytrip deal was found by Cheapflights users on 7/7. 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.
Fri 8/217:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Wed 8/267:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/7$407
This Cheapflightsfares deal was found by Cheapflights users on 7/8. 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.
Fri 8/2110:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Fri 8/284:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 7/8$408
This Icelandair deal was found by Cheapflights users on 7/8. 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.
Sat 8/2210:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Tue 9/17:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/8$409
This Flightnetwork deal was found by Cheapflights users on 7/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Wed 8/267:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/5$410
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
Fri 10/97:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Wed 10/147:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/6$414
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
Wed 10/710:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Sun 10/184:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 7/6$415
This Icelandair deal was found by Cheapflights users on 7/6. 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.
Thu 10/87:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Tue 10/274:30 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 7/6$416
This Flightnetwork deal was found by Cheapflights users on 7/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Mon 8/317:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/6$417
This FlightHub deal was found by Cheapflights users on 7/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Sat 8/297:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 7/6$418
This Delta deal was found by Cheapflights users on 7/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:25 am
ORD
-
KEF
1 stop17h 35m
Delta
Sun 10/49:30 am
KEF
-
ORD
1 stop15h 03m
Delta
Deal found 7/5$420

Find flight deals from O'Hare Intl to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Keflavik Intl (KEF). 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 July 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$405
(Mytrip)

One-way from

$353
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$736

Good round-trip deal

$640 or less

Good one-way deal

$302 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Reykjavik Keflavik Intl flights.
Search Deals
From Chicago O'Hare Intl to Reykjavik Keflavik Intl
Search Deals
One-way flight from Chicago O'Hare Intl to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Reykjavik Keflavik Intl.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Reykjavik Keflavik Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Keflavik 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 July 9, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 10/1

6:00 am-7:00 am

2 stops20h 00m

Reykjavik Keflavik Intl

Mon 10/5

9:30 am-9:33 pm

1 stop17h 03m

$426

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Sun 9/13

8:25 am-7:00 am

1 stop17h 35m

Reykjavik Keflavik Intl

Sat 9/19

9:30 am-5:33 pm

1 stop13h 03m

$433
Quickest round-trip

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 8/20

9:35 pm-8:50 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Thu 8/27

12:00 pm-1:50 pm

Nonstop6h 50m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Wed 7/15

9:40 pm-8:30 am

1 stop29h 50m

Reykjavik Keflavik Intl

Mon 7/20

10:00 am-12:11 pm

2 stops31h 11m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 7/23

6:30 am-8:30 am

1 stop21h 00m

Reykjavik Keflavik Intl

Thu 7/30

10:00 am-9:00 am

1 stop28h 00m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Wed 7/15

9:35 pm-8:50 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Wed 7/22

12:00 pm-1:50 pm

Nonstop6h 50m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Sun 7/12

9:35 pm-8:50 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Thu 7/23

12:00 pm-1:50 pm

Nonstop6h 50m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Wed 8/26

6:30 am-8:30 am

1 stop21h 00m

Reykjavik Keflavik Intl

Tue 9/8

10:00 am-9:00 am

1 stop28h 00m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Fri 7/17

9:35 pm-8:50 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Fri 7/24

12:00 pm-1:50 pm

Nonstop6h 50m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Wed 8/19

9:35 pm-8:50 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Mon 8/24

9:15 am-10:16 am

1 stop30h 01m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/5

Showing 1-10 of 23 resultsSorted by cheapest first
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3

Compare providers for flights from O'Hare Intl to Keflavik 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 O'Hare Intl to Keflavik Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust 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 Chicago O'Hare Intl Airport-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Chicago O'Hare Intl Airport-Reykjavik Keflavik 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 O'Hare Intl to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from O'Hare 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 Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport, you should look to book at least 48 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $483). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $811). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from O'Hare Intl to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 9, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport as you normally would.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik 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 Keflavik Intl. Reviews last updated July 9, 2026.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport, such as United Airlines and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,955 reviews

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
United Airlines
7.4
Good
9,955 reviews
United Airlines
7.4
Good
9,955 reviews

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
Icelandair
7.0
Good
702 reviews
United Airlines
7.4
Good
9,955 reviews

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Keflavik 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 Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?

    Airlines like Virgin Atlantic, Delta, and United Airlines fly from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in about 6h 15m. The time it takes to get you to your destination can typically vary by up to 13h 45m. There are 2934 mi between Chicago O'Hare Intl Airport and Reykjavik Keflavik Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport round-trip?

    Icelandair, at $359, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport. An alternate airline flying to your destination would be United Airlines. You may be able to fly from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport for 42% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?

    Consider Icelandair (63%), Air Canada (50%) or Austrian Airlines (50%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport.

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport? While on average our users pay $1,331, our data indicates the cheapest price to be $249. The most popular route (Chicago O'Hare Intl - Reykjavik Keflavik Intl), is priced around $371.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Keflavik 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.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $483). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $811). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Top 2 airlines flying from O'Hare Intl to Keflavik Intl

Discover the top 2 airlines that operate flights from O'Hare Intl to Keflavik 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 July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$359Average$642FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$528Average$823FlexibilityNo cancel feeOn-time69%

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