583 € Cheap Flights from Chicago O'Hare International to Belfast

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Flight deals from Chicago O'Hare International to Belfast

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International Airport to Belfast? If you want to travel next month, return fares start from 663 €. Find the lowest prices on one-way and return tickets right here.

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

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

Alternative Chicago O'Hare International to Belfast routes

Looking for the cheapest, fastest or easiest route from Chicago O'Hare International to Belfast? You could fly into the following airports instead.

Chicago to Belfast: Flight information

The things to know before you go.
Cheapest flight found583 €
Cheapest month to flyAugust

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

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a return flight from Chicago O'Hare International to Belfast is 583 €. 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.
Currently, there are no airlines that fly direct from Chicago O'Hare International to Belfast. But we found flights with one or more stops from 583 €.
As of July 2026, there are no flights flying from Chicago O'Hare International to Belfast.
The cheapest month to fly from Chicago O'Hare International to Belfast is usually August.
If you're flying from Chicago O'Hare International Airport, the cheapest airport near Belfast is Belfast International – which is 19.7 km away from the centre of Belfast. We've found flights into this airport from 583 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Belfast on Friday, 28 August 2026.
No airlines currently offer direct flights between Chicago O'Hare International Airport and Belfast. Most routes have one or more stops.
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 Belfast 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 Belfast is around 40 days in advance, so don’t leave your flight to the last minute.

In July, the average temperature is usually around 14°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
Currently, Icelandair offers the cheapest flight tickets to Belfast.

Travelling from Chicago O'Hare International Airport (ORD) to Belfast: what you need to know

  • The timezone in Belfast is UTC+0. The city is six hours ahead of Chicago, where Chicago O'Hare International Airport is located.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This leaves you with plenty of time to board your ORD to Belfast flight.

  • During popular months such as July, it's wise to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you fly during peak periods in general.

  • A stopover is the perfect opportunity to break up your trip and perhaps even visit a new city. When searching for plane tickets from ORD to Belfast, deselect the 'Direct flights only' box to see where you can visit along the way. Here are some popular options to consider:

    • London Heathrow Airport (LHR)

    • Amsterdam Schiphol Airport (AMS)

    • Frankfurt Airport (FRA)

  • ORD is around 26 kilometres from central Chicago. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 30 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the travel time to be around 45 minutes.

  • Looking for a hotel near ORD? If you're boarding an early flight from Chicago O'Hare International Airport to Belfast, these accommodation options will put you moments from check-in:

  • When it comes to Chicago O'Hare International Airport's on-time performance, data shows 70% of flights complete their journey on time.

  • ORD is located at 10000 West O'Hare.

How to find the cheapest flights from Chicago O'Hare International Airport (ORD) to Belfast

  • 267 € is currently the best price for a one-way Chicago O'Hare International Airport to Belfast flight. A return plane ticket starts at 583 €. These fares can change depending on demand and availability.

  • Booking in advance is often the key to scoring a cheap flight from ORD to Belfast. Fares tend to rise as demand increases, so the nearer you get to departure, the more you'll likely spend.

  • If you have flexibility with your travel plans, make the most of the 'Whole month' tool. It'll show you the cheapest price across each month when looking for a Chicago O'Hare International Airport to Belfast ticket.

  • Snapping up a cheap flight from ORD to Belfast is easy with Price Alerts. Simply create one of these automatic notifications and we'll notify you as soon as there's a better deal.

  • Snag an affordable flight from Chicago O'Hare International Airport to Belfast with the help of our filters. Choose your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) is around 19 kilometres from the centre of Belfast. If you're grabbing a taxi or a ride-share, the drive will take roughly 25 minutes.

  • When travelling on public transport, expect a journey time of around 45 minutes.

  • Consider staying in a hotel close to BFS if you're coming in on a late flight from Chicago O'Hare International Airport to Belfast. Select one of these accommodation options and make your arrival easier:

  • Reserving your ride from Belfast International Airport about three weeks before your flight from ORD to Belfast can help you get the best possible rate.

George Best Belfast City Airport (BHD)

  • The centre of Belfast is located around 5 kilometres from George Best Belfast City Airport (BHD). After your flight from Chicago O'Hare International Airport to Belfast has touched down and you've made your way out of the airport, expect a drive of around 15 minutes.

  • If you travel by public transport, the ride to the centre will take you 25 minutes or so.

  • After stepping off your ORD to Belfast flight, rest your head at a hotel close to BHD. These are some great accommodation options that'll help you get into relaxation mode:

  • Avoid last-minute price surges. Booking your ride two weeks before your arrival at BHD will help you stay within budget.

Best time to go to Belfast

  • January is the quietest month for flights from Chicago O'Hare International Airport to Belfast, while September is the busiest. Figure out the ideal time to visit Belfast based on whether you want a laid-back vibe or a more bustling atmosphere.

  • Before booking a Chicago O'Hare International Airport to Belfast plane ticket, think about the type of weather you enjoy. July is the warmest month in Belfast, with temperatures ranging from 9ºC (48ºF) to 19ºC (66ºF).

  • January has average temperatures of between 1ºC (34ºF) and 8ºC (46ºF). Look for a cheap ticket from ORD to Belfast around that time if you want to travel in cooler conditions.

More about Belfast

Explore more of the United Kingdom

  • Belfast is always a good idea, but there are so many other corners of the United Kingdom just waiting to be explored. Around 274 kilometres southeast of Belfast, a visit to Manchester will keep your itinerary busy. Start with leading sights like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • Around 354 kilometres southeast of Belfast, Birmingham is another favourite stop in the United Kingdom. No visit is complete without checking out Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.