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Cheap Flights to Chicago O'Hare International Airport (ORD)

Travellers and cabin class

Compare Chicago O'Hare International Airport flights across hundreds of providers

Find the cheapest month or even day of the year to fly

Book the best fare with no fees

Flight deals to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight to Chicago O'Hare International? Find the lowest prices on one-way and return tickets right here.
Chicago.318 € per passenger.Departing Mon, 26 May, returning Sun, 24 Aug.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Mon, 26 May, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Sun, 24 Aug, arriving in Dublin.Price includes taxes and charges.From 318 €, select.
Chicago.319 € per passenger.Departing Thu, 29 May, returning Mon, 15 Sep.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Thu, 29 May, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Mon, 15 Sep, arriving in Dublin.Price includes taxes and charges.From 319 €, select.
Chicago.320 € per passenger.Departing Fri, 26 Sep, returning Sat, 11 Oct.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Fri, 26 Sep, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Sat, 11 Oct, arriving in Dublin.Price includes taxes and charges.From 320 €, select.
Chicago.321 € per passenger.Departing Thu, 12 Jun, returning Mon, 25 Aug.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Thu, 12 Jun, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Mon, 25 Aug, arriving in Dublin.Price includes taxes and charges.From 321 €, select.
Chicago.322 € per passenger.Departing Fri, 17 Oct, returning Sun, 26 Oct.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Fri, 17 Oct, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Sun, 26 Oct, arriving in Dublin.Price includes taxes and charges.From 322 €, select.
Chicago.322 € per passenger.Departing Mon, 1 Sep, returning Mon, 15 Sep.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Mon, 1 Sep, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Mon, 15 Sep, arriving in Dublin.Price includes taxes and charges.From 322 €, select.
Chicago.322 € per passenger.Departing Fri, 24 Oct, returning Mon, 3 Nov.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Fri, 24 Oct, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Mon, 3 Nov, arriving in Dublin.Price includes taxes and charges.From 322 €, select.
Chicago.323 € per passenger.Departing Thu, 6 Nov, returning Fri, 14 Nov.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Thu, 6 Nov, arriving in Chicago O'Hare International.Inbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Fri, 14 Nov, arriving in Dublin.Price includes taxes and charges.From 323 €, select.

Find the cheapest time to fly to Chicago O'Hare International

Flexible on travel dates? Find the cheapest month – or even day – to fly to Chicago O'Hare International.
Mar
from 785 €
Apr
from 387 €
May
from 334 €
Jun
from 355 €
Jul
from 474 €
Aug
from 345 €
Sep
from 322 €
Oct
from 322 €
Nov
from 323 €
Dec
from 326 €
Jan
from 418 €
Feb
from 332 €

Airports near Chicago

Compare routes to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier.

Direct flights to Chicago O'Hare International

Frequently asked questions

The average flight time to Chicago O'Hare International is 8 hours and 20 minutes. We've calculated this based on journeys from Dublin.
Aer Lingus, British Airways, American Airlines, United, Alaska Airlines, Air Canada, Lufthansa and Finnair all fly direct to Chicago O'Hare International.
The cheapest month to fly to Chicago O'Hare International is usually May.
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.
Yes – the average flight time is 8 hours and 17 minutes.
The best price we found for a return flight to Chicago O'Hare International is 318 €. 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.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Chicago O'Hare International Airport is Monday, 26 May 2025.
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, Scandinavian Airlines and Aer Lingus offer the cheapest flight tickets to Chicago O'Hare International.

Flying to Chicago O'Hare International

The things to know before you go.
Cheapest flight found318 €
Cheapest month to flyMay
Average flight time8 hrs, 18 mins
Most popular airlineAer Lingus
Average flights per week108

Discover Chicago O'Hare International

How to find cheap flights to Chicago O'Hare International airport (ORD) in 2025

Looking for cheap tickets to Chicago O'Hare International airport? Return tickets to Chicago O'Hare International start from 318 € and one-way flights to Chicago O'Hare International start from 247 €.

Here are a few tips on how to score the best price and make your journey as smooth as possible

  • Simply hit 'search'. We've compared plane tickets from all major online travel agents and airlines flying to Chicago O'Hare International airport to find the cheapest flights. And with us there are no hidden charges - what you see is what you pay.
  • Look for direct flights. Only interested in direct flights to Chicago O'Hare International airport? Make sure to tick 'Direct flights only' when performing a search. If there are direct ORD flights available, these will appear in the results. Airlines that fly direct to Chicago: Aer Lingus
    American Airlines
    British Airways
    United
    Alaska Airlines
    Air Canada
    Lufthansa
    Brussels Airlines
  • Depart from Ireland. Look out for flights from Ireland, this is the cheapest location to depart from when flying to Chicago O'Hare International airport.
  • Compare flight deals to Chicago O'Hare International airport from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Chicago start from 247 € one-way.
  • Flex your dates to secure the best fare for your Chicago O'Hare International airport flight. If your travel dates are flexible, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Chicago O'Hare International airport from your chosen departure location.
  • Set up a Price Alert. You can easily track the price of your flights to Chicago O'Hare International airport by creating an alert. Whenever prices go down or up, you'll get a push notification or e-mail to help you get the best flight deal.
  • Find the cheapest Business class flights to Chicago O'Hare International airport. We scour the internet for the best Business, Premium Economy and First Class flight fares to Chicago, too. Check the difference in price as you search – you might just chance upon a last-minute low fare.
  • Include nearby airports in your search. Widen your search for Chicago O'Hare International airport flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets to Chicago O'Hare International airport whenever you want.

Compare Chicago O'Hare International airport plane tickets with other destinations using the everywhere search

Not entirely set on flying to Chicago O'Hare International airport yet? You can easily browse other destinations by searching flights to 'Everywhere' - this will allow you to find the cheapest place to travel from your departure location.

Combine your cheap flight to Chicago O'Hare International airport with hotels and car hire

Once you've secured your ticket to Chicago O'Hare International airport, discover the best prices and exclusive rates for hotels in, or close to, Chicago O'Hare International airport. You can also compare hundreds of car hire companies in one go so that you get the best car hire deals for your trip.


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Chicago O'Hare International arrivals and departures
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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.