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Keflavik Intl

$380+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KEF
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 January or February, booked 47 days in advance, depart on a Wednesday or Tuesday 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 March 10, 2026.

This Flighttix deal was found by Cheapflights users on 3/7. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1910:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Sat 4/254:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 3/7$446
This Super.com deal was found by Cheapflights users on 3/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1910:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Sun 4/267:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 3/8$452
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Fri 4/177:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 3/5$458
This FlightHub deal was found by Cheapflights users on 3/9. 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.
Sun 4/1210:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Fri 4/247:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Deal found 3/9$461
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sun 4/1210:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Thu 4/234:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 3/9$471
This Icelandair deal was found by Cheapflights users on 3/8. 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.
Sun 4/1910:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Thu 4/234:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 3/8$472
This CrystalTravel deal was found by Cheapflights users on 3/6. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Mon 5/44:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 3/6$485
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Wed 4/294:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 3/5$508
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Mon 5/44:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Deal found 3/5$509

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$446
(Flighttix)

One-way from

$380
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$613

Good round-trip deal

$547 or less

Good one-way deal

$332 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. 11% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 10, 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

Wed 5/6

11:19 am-9:30 am

2 stops17h 11m

Reykjavik Keflavik Intl

Wed 5/13

11:25 am-9:53 pm

2 stops15h 28m

$793

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 5/7

2:59 pm-9:30 am

2 stops13h 31m

Reykjavik Keflavik Intl

Wed 5/13

9:30 am-2:57 pm

1 stop10h 27m

$794

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Mon 4/27

11:08 am-9:30 am

1 stop17h 22m

Reykjavik Keflavik Intl

Mon 5/4

11:25 am-8:40 pm

2 stops14h 15m

$794

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Tue 5/5

11:19 am-9:30 am

2 stops17h 11m

Reykjavik Keflavik Intl

Tue 5/12

9:30 am-6:05 pm

2 stops13h 35m

$794

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Fri 4/24

7:15 pm-4:20 pm

1 stop16h 05m

Reykjavik Keflavik Intl

Fri 5/1

6:25 pm-9:57 pm

2 stops32h 32m

$815

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Sun 5/10

2:00 pm-6:20 am

1 stop11h 20m

Reykjavik Keflavik Intl

Sun 5/17

8:50 am-8:26 pm

2 stops16h 36m

$823

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Mon 4/13

11:19 am-9:30 am

2 stops17h 11m

Reykjavik Keflavik Intl

Sun 4/26

11:25 am-8:40 pm

2 stops14h 15m

$828

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Fri 4/17

7:15 pm-5:45 pm

2 stops17h 30m

Reykjavik Keflavik Intl

Wed 4/22

7:40 am-4:10 pm

1 stop13h 30m

$831
Quickest round-trip

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Wed 5/20

9:35 pm-8:50 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Sun 5/31

12:00 pm-1:50 pm

Nonstop6h 50m

$834

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Sat 5/16

6:24 am-6:20 am

2 stops18h 56m

Reykjavik Keflavik Intl

Sun 5/24

8:50 am-9:34 pm

2 stops17h 44m

$853

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Keflavik Intl. Price data was last updated on March 6, 2026.

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 47 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $313). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $600). 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 March 10, 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.

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 March 10, 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
9,409 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
619 reviews
United Airlines
7.4
Good
9,409 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 Scandinavian Airlines fly from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in about 13h 31m. The time it takes to get you to your destination can typically vary by up to 3h 40m. 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 $349, 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 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 $1,375, our data indicates the cheapest price to be $194. The most popular route (Chicago O'Hare Intl - Reykjavik Keflavik Intl), is priced around $450.

  • 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, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $313). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $600). 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$349Average$617FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$613Average$703FlexibilityNo cancel feeOn-time69%

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