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Keflavik Intl

$244+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KEF
Oct 12 — Oct 191
Sun 10/12
Sun 10/19
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Reykjavik Keflavik Intl are usually found in January or April, booked 71 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap 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 September 12, 2025.

Round-trip from

$371
(Mytrip)

One-way from

$244
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$638

Good round-trip deal

$484 or less

Good one-way deal

$367 or less
From Chicago O'Hare Intl to Reykjavik Keflavik Intl
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One-way flight from Chicago O'Hare Intl to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 7% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Reykjavik Keflavik Intl.
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Find 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 September 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 9/10. 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 11/146:30 pmORD - KEF
Nonstop6h 15mIcelandair
Sat 11/224:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/10$370
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Sun 10/1210:15 pmORD - KEF
Nonstop6h 05mIcelandair
Mon 10/204:25 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/11$371
This Icelandair deal was found by Cheapflights users on 9/10. 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.
Fri 12/126:30 pmORD - KEF
Nonstop6h 15mIcelandair
Tue 12/164:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/10$384
This CrystalTravel deal was found by Cheapflights users on 9/11. 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 11/116:30 pmORD - KEF
Nonstop6h 15mIcelandair
Wed 11/194:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/11$385
This oojo deal was found by Cheapflights users on 9/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:30 pmORD - KEF
Nonstop6h 15mIcelandair
Fri 11/144:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/12$386
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:30 pmORD - KEF
Nonstop6h 15mIcelandair
Mon 12/84:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/11$388
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 12/146:30 pmORD - KEF
Nonstop6h 15mIcelandair
Thu 12/184:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/10$395
This Icelandair deal was found by Cheapflights users on 9/11. 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.
Fri 10/317:30 pmORD - KEF
Nonstop6h 15mIcelandair
Tue 11/44:30 pmKEF - ORD
Nonstop6h 50mIcelandair
Deal found 9/11$399

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 September 12, 2025.
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

O'Hare Intl

Fly to

Keflavik Intl

Route

Depart

Return

Price

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Tue 12/9

6:30 pm-6:45 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Sun 12/14

4:30 pm-5:20 pm

Nonstop6h 50m

$399

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 12/11

6:30 pm-6:45 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Mon 12/15

4:30 pm-5:20 pm

Nonstop6h 50m

$399

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 12/11

6:30 pm-6:45 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Sun 12/14

4:30 pm-5:20 pm

Nonstop6h 50m

$399

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Tue 12/9

6:30 pm-6:45 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Wed 12/17

4:30 pm-5:20 pm

Nonstop6h 50m

$505

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Thu 12/11

6:30 pm-6:45 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Sat 12/20

4:30 pm-5:20 pm

Nonstop6h 50m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Tue 12/9

6:30 pm-6:45 am

Nonstop6h 15m

Reykjavik Keflavik Intl

Thu 12/18

4:30 pm-5:20 pm

Nonstop6h 50m

$529

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Sat 9/27

2:25 pm-6:20 am

1 stop10h 55m

Reykjavik Keflavik Intl

Tue 10/7

11:25 am-5:22 pm

1 stop10h 57m

$549

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Sat 9/27

11:15 am-6:20 am

2 stops14h 05m

Reykjavik Keflavik Intl

Tue 10/7

11:25 am-11:59 pm

2 stops17h 34m

$554

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Wed 12/10

7:10 pm-11:55 pm

2 stops46h 45m

Reykjavik Keflavik Intl

Mon 12/22

7:30 pm-4:45 pm

2 stops51h 15m

$561

ChicagoReykjavik

ORD - KEF

ORDKEF

Chicago O'Hare Intl

Tue 11/11

7:00 am-11:55 pm

2 stops34h 55m

Reykjavik Keflavik Intl

Wed 11/19

11:30 am-4:45 pm

1 stop35h 15m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 22 results
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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 August 29, 2025.

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 71 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $328). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $655). 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 September 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 30% on flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport by exploring options for tickets at noon.

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 September 12, 2025.
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
8,936 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,936 reviews
United Airlines
7.4
Good
8,936 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Icelandair
7.0
Good
546 reviews
United Airlines
7.4
Good
8,936 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 Icelandair 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 is usually consistent. There are 2934 mi between Chicago O'Hare Intl Airport and Reykjavik Keflavik Intl Airport. All flights are typically nonstop.

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

    Icelandair, at $363, 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 44% 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 (75%), Air Canada (52%) or Austrian Airlines (52%) 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 $1,197, our data indicates the cheapest price to be $345. The most popular route (Chicago O'Hare Intl - Reykjavik Keflavik Intl), is priced around $337.

  • 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $328). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $655). 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 September 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$363Average$649FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$612Average$711FlexibilityNo cancel feeOn-time69%

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