Cheap flights from Reykjavik Keflavik to Chicago O'Hare International

Compare Reykjavik Keflavik to Chicago O'Hare International flight deals

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Flight deals from Reykjavik Keflavik to Chicago O'Hare International

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

Find the cheapest month to fly from Reykjavik Keflavik to Chicago O'Hare International

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

Direct flights from Reykjavik Keflavik to Chicago O'Hare International

Reykjavik Keflavik to Chicago O'Hare International: Alternative routes

Compare routes from Reykjavik Keflavik to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier than Chicago O'Hare International.

Reykjavik to Chicago: Flight information

The things to know before you go.
Cheapest flight foundC$638
Cheapest month to flySeptember
Average flight time6 hrs, 50 mins
Most popular airlineIcelandair
Average flights per week29

Finding cheap flights from Reykjavik Keflavik to Chicago O'Hare International: Frequently asked questions

The best price we found for a round-trip flight from Reykjavik Keflavik to Chicago O'Hare International is C$638. 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 O'Hare International.
Icelandair, Air Canada and Lufthansa fly direct from Reykjavik Keflavik to Chicago O'Hare International.
There are 29 flights per week flying from Reykjavik Keflavik to Chicago O'Hare International, as of July 2025.
The cheapest month to fly from Reykjavik Keflavik to Chicago O'Hare International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to Chicago O'Hare International Airport on Wednesday, September 3, 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 O'Hare International 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.
Currently, Fly Play and Icelandair offer the cheapest flight tickets to Chicago O'Hare International.

Flying from Keflavik International Airport (KEF) to O'Hare International Airport (ORD): what you need to know

  • Hop on a direct flight from Keflavik International Airport to O'Hare International Airport and you'll be in the air for an average of 6 hours 45 minutes.

  • The timezone in Chicago is UTC-5, which is five hours behind Reykjavik.

  • Flights from KEF to ORD start from 12:00 — the earliest with United Airlines. The last departure is at 19:35 with Icelandair. Overall, there are 15 weekly Keflavik International Airport to O'Hare International Airport flights.

  • To ensure you get on your KEF to ORD flight, leave plenty of time to check in and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • During popular months such as July, it's best to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're travelling during a high season in general.

  • Getting to Chicago (and then seeing more of United States!) is a cinch with Icelandair. This popular carrier has direct flights from Keflavik International Airport to O'Hare International Airport.

  • The majority of passengers choose to travel with Icelandair on this route.

  • The carrier with the most consistent on-time arrivals for KEF to ORD flights is Icelandair.

  • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Keflavik International Airport to O'Hare International Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to explore your chosen city. Stopovers between KEF and ORD include:

    • Detroit Metropolitan Wayne County Airport

    • Pearson International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

How to find the cheapest flights from Keflavik International Airport (KEF) to O'Hare International Airport (ORD)

  • The lowest price we've seen for a one-way Keflavik International Airport to O'Hare International Airport flight is C$389. A round-trip ticket is currently C$638. Depending on the availability when you book, these fares could change.

  • To score cheap tickets from KEF to ORD, reserve your journey nine months before your departure.

  • Organize your trip for August. That's the cheapest month for flights from Keflavik International Airport to O'Hare International Airport. If you have flexibility with your dates, try out the 'Whole month' tool to see the cheapest airfare across every month.

  • Save time searching for cheap flights from KEF to ORD by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Pick your ideal arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Keflavik International Airport to O'Hare International Airport.

Handy information about Keflavik International Airport (KEF)

  • When it comes to Keflavik International Airport's on-time performance, data shows 66.96% of flights arrive within the expected timeframe.

  • Keflavik International Airport is about 48 kilometres from central Reykjavik. If you're catching a cab, ride-sharing or driving from the centre, it'll take 50 minutes or so to arrive, depending on the traffic.

  • Taking public transport? You can expect a journey time of around 1 hour 15 minutes.

  • Booked an early flight from Keflavik International Airport to O'Hare International Airport? Avoid the last-minute rush to the terminal (and catch some extra z's) by picking one of these hotels near KEF:

Arriving at O'Hare International Airport (ORD)

Getting from O'Hare International Airport (ORD) to central Chicago

  • You'll find ORD at 10000 West O'Hare.

  • O'Hare International Airport to the centre of Chicago has a drive time of about 35 minutes. It's approximately 40 kilometres away.

  • If you're using public transport, expect a journey of around 55 minutes.

When to fly to O'Hare International Airport (ORD)

  • The quietest month for a flight from Keflavik International Airport to O'Hare International Airport is January, while August is the most popular. Pick the ideal time to go to Chicago based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Chicago is July, with temperatures ranging between 15ºC (59ºF) and 29ºC (84ºF). Lock in your flights from Keflavik International Airport to O'Hare International Airport in this month if this is the type of weather you enjoy.

  • If you like travelling in cooler conditions, look for a cheap ticket from KEF to ORD in January. Temperatures average between -12ºC (10ºF) and 3ºC (37ºF) then.

Explore more of United States

  • Columbus is just one of the many cities in United States waiting to be explored after you've seen Chicago. Around 451 kilometres away to the south-east, well-known attractions include Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • Around 257 kilometres south-east of Chicago, Indianapolis is another essential stop in United States. Experience major highlights starting with The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

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