Cheap Flights from Reykjavik Keflavik (KEF) to Chicago (CHIA)

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Flight deals from Reykjavik Keflavik to Chicago

Looking for a cheap last-minute deal or the best round-trip flight from Reykjavik Keflavik to Chicago? Find the lowest prices on one-way and round-trip tickets right here.

When is the cheapest time to fly from Reykjavik Keflavik to Chicago?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Reykjavik Keflavik to Chicago flights are currently cheapest in May.

Direct flights from Reykjavik Keflavik to Chicago

Alternative Reykjavik Keflavik to Chicago routes

Looking for the cheapest, fastest or easiest route from Reykjavik Keflavik to Chicago? You could fly into the following airports instead.

Reykjavik to Chicago: Flight information

The things to know before you go.
Cheapest flight found$255
Cheapest month to flyMay
Average flight time6 hrs, 50 mins
Most popular airlineIcelandair
Average flights per week27

Finding cheap flights from Reykjavik Keflavik to Chicago: Frequently asked questions

There are 4 airports in Chicago: Chicago Midway, Chicago O'Hare International, Chicago Dupage County, and Chicago Rockford.
The best price we found for a round-trip flight from Reykjavik Keflavik to Chicago is $459. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
6 hours and 50 minutes is the average flight time from Reykjavik Keflavik to Chicago.
Icelandair, Air Canada and Lufthansa fly direct from Reykjavik Keflavik to Chicago.
There are 27 flights per week flying from Reykjavik Keflavik to Chicago, as of April 2025.
The cheapest month to fly from Reykjavik Keflavik to Chicago is usually April 2025.
If you're flying from Reykjavik Keflavik Airport, the cheapest airport near Chicago is Chicago O'Hare International – which is 15.8 miles away from the center of Chicago. We've found flights to this airport from $459.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to Chicago on Saturday, May 10, 2025.
Yes – the average flight time is 6 hours and 50 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 46°F. July is typically the warmest month in Chicago, when it usually averages around 80°F. You can expect the least rain in January. The coldest month is January, with temperatures averaging 18°F. The rainiest month is August.
Currently, Fly Play and Icelandair offer the cheapest flight tickets to Chicago.

Traveling from Keflavik International Airport (KEF) to Chicago: what you need to know

  • Expect to be traveling for 6 hours 10 minutes. On average, that's the time it takes for a direct flight from Keflavik International Airport to Chicago.

  • Keflavik International Airport is located in Reykjavik. Based in the UTC-5 timezone, Chicago is 5 hours behind Reykjavik.

  • With 15 flights a week between the two airports, Keflavik International Airport (KEF) to O'Hare International Airport (ORD) is the busiest route. United operates the earliest flight at 12:00. If you're eager to get more out of your day before taking off, the latest flight from KEF to ORD is with Icelandair at 19:35.

  • Leave enough time to get on your flight from KEF to Chicago. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • Traveling over a peak time such as July? Major public holidays and other popular seasons can lead to longer lines and delays at check-in and security. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • Direct flights from Keflavik International Airport (KEF) to Chicago are available for booking. O'Hare International Airport (ORD) is where you'll be landing.

  • Look out for offers from Icelandair. This carrier has direct flights from Keflavik International Airport to Chicago.

  • Consider adding a stopover to possibly find a cheaper flight from KEF to Chicago. Simply deselect 'Direct flights only' when browsing the departures. Take a break (and maybe save some cash) by stopping at one of these popular airports:

    • Pittsburgh International Airport (PIT)

    • Detroit Metropolitan Wayne County Airport (DTW)

    • Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • To travel to United States for tourism purposes, you will require an ETA if you hold a passport from Iceland. However, visa rules can change and you may need further documentation depending on the purpose and duration of your stay. Always check the most recent guidelines before booking your cheap ticket from Keflavik International Airport to Chicago.

  • Located around 30 miles from the center of Reykjavik, KEF can be reached in about 49 minutes by car (depending on traffic). The same journey on public transport is roughly 1 hour and 13 minutes.

  • Want a hassle-free start to your travels? Stay near KEF. Whether you're catching an early flight from Keflavik International Airport to Chicago or just don't like being rushed, these hotels are just the thing:

How to find the cheapest flights from Keflavik International Airport (KEF) to Chicago

  • $255 is the lowest price for a one-way ticket from Keflavik International Airport to Chicago. Return flights start at $459. These fares may change depending on demand.

  • Don't leave everything to the last minute. You're more likely to get cheap tickets from KEF to Chicago if you book ahead. Airlines often offer some amazing early bird deals.

  • The 'Whole month' search tool shows you the cheapest tickets from Keflavik International Airport to Chicago across each month. It's a great way to find a bargain if your dates aren't set in stone.

  • Snapping up a cheap ticket from KEF to Chicago is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when the price has dropped.

  • Use the filters to tailor your flights from Keflavik International Airport to Chicago. Pick your preferred arrival and departure times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to get the best deals.

Airports in Chicago

O'Hare International Airport (ORD)

Chicago Midway International Airport (MDW)

Best time to go to Chicago

  • August is the most popular month for flights from Keflavik International Airport to Chicago. To steer clear of the crowds, travel to Chicago in February when things are quieter.

  • Book your flight from Keflavik International Airport to Chicago for July to visit the city during its warmest month. Expect temperatures to range from 59ºF to 84ºF.

  • If you like traveling in cooler conditions, lock in a cheap flight from KEF to Chicago in January when temperatures average between 10ºF and 37ºF.

More about Chicago

  • After booking your flight from Keflavik International Airport to Chicago, think about where you want to stay in this city. Make one of these options your base for exploring Chicago:

  • All great adventures should include a little sightseeing. Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier are must-visits when exploring Chicago.

Complete your Chicago trip with a car rental

  • Finding you a cheap flight from Keflavik International Airport to Chicago isn't our only party trick. Check out our car rentals in Chicago and explore on your own terms. We search for deals from trusted car rental providers and put them all in one place. You can instantly compare offers and then book with no fees.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.