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Cheap Flights from Chicago to Belfast

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Compare Chicago O'Hare International to Belfast flight deals

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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 to Belfast? Find the lowest prices on one-way and return tickets right here.
Belfast.$1,031 per passenger.Departing Tue, 13 May, returning Tue, 20 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Tue, 13 May, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Tue, 20 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,031, select.
Belfast.$1,061 per passenger.Departing Mon, 21 Apr, returning Tue, 6 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Mon, 21 Apr, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Tue, 6 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,061, select.
Belfast.$1,159 per passenger.Departing Thu, 29 May, returning Mon, 2 Jun.Return flight with WestJet and Ryanair.Outbound indirect flight with WestJet, departs from Chicago O'Hare International on Thu, 29 May, arriving in Belfast International.Inbound indirect flight with Ryanair, departs from Belfast International on Mon, 2 Jun, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,159, select.
Belfast.$1,194 per passenger.Departing Sat, 14 Mar, returning Sat, 21 Mar.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Sat, 14 Mar, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Sat, 21 Mar, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,194, select.
Belfast.$1,203 per passenger.Departing Fri, 22 Aug, returning Fri, 29 Aug.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Fri, 22 Aug, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Fri, 29 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,203, select.
Belfast.$1,208 per passenger.Departing Thu, 17 Apr, returning Sun, 20 Apr.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Thu, 17 Apr, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Sun, 20 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,208, select.
Belfast.$1,434 per passenger.Departing Fri, 13 Jun, returning Tue, 17 Jun.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Chicago O'Hare International on Fri, 13 Jun, arriving in Belfast City.Inbound indirect flight with British Airways, departs from Belfast City on Tue, 17 Jun, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,434, select.

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 May.
Apr
from $1,208
May
from $1,031
Jun
from $1,434
Jul
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Aug
from $1,203
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Mar
from $1,194

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 found$1,031
Cheapest month to flyMay

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 $1,031. 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 $1,031.
As of April 2025, 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 May.
If you're flying from Chicago O'Hare International Airport, the cheapest airport near Belfast is Belfast City – which is 3.7 km away from the centre of Belfast. We've found flights into this airport from $1,031.
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 Tuesday, 13 May 2025.
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 April, the average temperature is usually around 8°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, British Airways offers the cheapest flight tickets to Belfast.

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

  • Belfast is 5 hours ahead of Chicago, where O'Hare International Airport is located. Belfast operates on the UTC+0 timezone.

  • To ensure you get on your flight from ORD to Belfast, leave plenty of time to check in and drop off your luggage. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • If you're going away during a popular month like August, get to the terminal even earlier. It's smart to arrive up to four hours before international flights and two hours ahead of a domestic departure. Expect lines to be longer during peak periods like Christmas, New Year and spring break.

  • We make it a piece of cake to find a flight from ORD to Belfast that includes a stopover. To see all the options, uncheck 'Direct flights only.' Next, choose a flight with a stop long enough to tour the city of your choice. Top stopovers include:

    • London Heathrow Airport (LHR)

    • Frankfurt Airport (FRA)

    • Edinburgh Airport (EDI)

  • You won't need a visa for United Kingdom if you hold a passport from United States and are visiting for tourism purposes. Travel documentation and visa requirements are subject to change. So before locking in your cheap tickets from O'Hare International Airport to Belfast, check with your airline and your destination country's local embassy or consulate for the latest information.

  • Located around 40 kilometres from the centre of Chicago, ORD can be reached in approximately 35 minutes by car, depending on traffic. The journey by public transport will take roughly 54 minutes.

  • Need a handy hotel close to ORD? If you've booked an early flight from O'Hare International Airport to Belfast, these accommodation options will put you moments from check-in:

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

  • $573 is the lowest price for a one-way ticket from O'Hare International Airport to Belfast. A return flight starts from $1,031. These fares may change based on availability.

  • It's usually best to book early if you want to get cheap tickets from ORD to Belfast. That's because airlines change prices based on demand, which tends to rise closer to departure.

  • Getting cheap tickets from O'Hare International Airport to Belfast is more likely if you can be flexible with your dates. Check out the 'Whole month' search function to see the best prices across every month and land a great deal.

  • Create a Price Alert for flight tickets from ORD to Belfast. There's no need to check back in every day to find out if prices have fallen. We'll notify you when there's a change in price.

  • Take advantage of the filters to find your ideal trip. To see the 'Fastest,' 'Best' or 'Cheapest' flights from O'Hare International Airport to Belfast, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and journey duration.

Airports in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) to central Belfast is roughly 32 kilometres. It takes around 31 minutes to get to the centre driving.

  • When travelling by public transport, expect a journey of around 2 hours and 2 minutes.

  • Reserve a hotel close to BFS if you're catching a late flight from O'Hare International Airport to Belfast. Check in to one of these accommodation options and avoid the hassle of a long transfer:

George Best Belfast City Airport (BHD)

  • As soon as your flight from O'Hare International Airport to Belfast has hit the tarmac, you can reach the city centre in about 12 minutes by car. Central Belfast is approximately 8 kilometres from George Best Belfast City Airport (BHD).

  • If you're catching public transport, it'll take about 22 minutes.

  • After your flight from ORD to Belfast, rest your head at a hotel near BHD. These are some great options that'll help you switch to relaxation mode:

Best time to go to Belfast

  • August is the most popular month to catch a flight from O'Hare International Airport to Belfast while February is the quietest. To work out the ideal time to go to Belfast, consider whether you like a lively atmosphere or a quieter vibe.

  • Book your flight from O'Hare International Airport to Belfast for July to visit the city during its warmest month. Expect temperatures to range from 10ºC to 19ºC.

  • If you like cooler conditions, lock in a cheap flight from ORD to Belfast in January when temperatures average between 1ºC and 8ºC.

More about Belfast

  • When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Belfast right here. Explore these hotels once you've locked in your flight from O'Hare International Airport to Belfast:

  • Titanic Belfast and Crumlin Road Gaol Visitor Attraction and Conference Centre are just two of the popular attractions to add to your Belfast must-do list. Keep the adventure rolling by checking out Botanic Gardens.

Complete your Belfast trip with a car rental

  • Finding you a cheap flight from O'Hare International Airport to Belfast isn't our only cool trick. Check out our car rentals in Belfast and explore the city on your own terms. We find deals from trusted car rental companies and put them all in one place. You can instantly compare rates and then book with no fees.

Plan the rest of your trip from Chicago to Belfast

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