C$439 Cheap Flights from Chicago (CHIA) to Belfast (BELF)

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Flight deals from Chicago to Belfast

Looking for a cheap last-minute deal or the best return flight from Chicago to Belfast? If you want to travel next month, return fares start from C$1,175. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Belfast

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

Alternative Chicago to Belfast routes

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

Chicago to Belfast: Flight information

The things to know before you go.
Cheapest flight foundC$439
Cheapest month to flyJuly

Finding cheap flights from Chicago 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 to Belfast is C$1,091. 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 to Belfast. But we found flights with one or more stops from C$1,091.
As of April 2026, there are no flights flying from Chicago to Belfast.
The cheapest month to fly from Chicago to Belfast is usually October.
If you're flying from Chicago, 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 C$1,091.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Belfast on Saturday, October 17, 2026.
No airlines currently offer direct flights between Chicago 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.
The cheapest airline that flies to Belfast is Icelandair .

Travelling from Chicago to Belfast: what you need to know

  • Chicago has a couple of airports where you can set off on your adventure. Explore your options for reserving a flight from Chicago to Belfast flying out of O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW).

  • Belfast International Airport (BFS) and George Best Belfast City Airport (BHD) are Belfast's primary hubs.

  • Leave plenty of time to make your flight from Chicago to Belfast. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months like August, you'll want to get to the airport even earlier. Arrive two hours before a domestic departure and four hours ahead of international flights when you fly during peak periods in general.

  • You don't need a visa for United Kingdom if you hold a passport from United States and are visiting for tourism purposes. Visa and travel documentation requirements are subject to changes or updates. So before organizing your cheap flights from Chicago to Belfast, check with your airline and your destination country's local embassy or consulate for the latest rules.

Flying from Chicago

O'Hare International Airport (ORD)

  • A stopover is the perfect opportunity to take a travel break — and perhaps even visit a new city. When searching for flights from Chicago to Belfast departing from O'Hare International Airport, uncheck the 'Direct flights only' box to see where you can stop along the way. Popular options include:

    • London Heathrow Airport (LHR)

    • Frankfurt Airport (FRA)

    • Edinburgh Airport (EDI)

  • ORD is about 40 kilometres from central Chicago. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 35 minutes or so to get there, depending on the traffic. If you're using public transport, expect the travel time to be around 54 minutes.

  • Want an easy start to your journey? Stay near O'Hare International Airport. Whether you have an early flight from Chicago to Belfast or just don't like being rushed, these hotels have you covered:

Chicago Midway International Airport (MDW)

  • Split up your flight from Chicago to Belfast with a stop so you can stretch your legs or cross a new place off your list. Top stopovers between O'Hare International Airport and Belfast are:

    • London Heathrow Airport (LHR)

    • Frankfurt Airport (FRA)

    • Edinburgh Airport (EDI)

  • MDW is around 19 kilometres from central Chicago. It takes 21 minutes or so to get to the airport by car from the city centre. Public transport takes roughly 46 minutes.

  • Start your vacation early with an extra night away from home. Before your flight from Chicago to Belfast, take things easy in one of these hotels near Chicago Midway International Airport:

Arriving in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) to central Belfast is around 31 minutes by car. It's approximately 32 kilometres away.

  • It typically takes 2 hours and 2 minutes if you're travelling on public transport.

  • If you're arriving on a late flight from Chicago to Belfast, few things beat the convenience of staying near the terminal. Collect your bags from the carousel and then be showered and resting soon after at one of these accommodation options near BFS:

George Best Belfast City Airport (BHD)

How to find the cheapest flights from Chicago to Belfast

  • At the moment, C$439 is the best price we've seen for a one-way ticket from Chicago to Belfast. The cheapest price for a return flight is C$1,091. Bear in mind fares may change due to demand at the time of booking.

  • Don't leave things to the last moment. You're more likely to find cheap flights from Chicago to Belfast if you book ahead. Airlines often offer some great early bird deals.

  • If you can be flexible with your travel plans, try using the 'Whole month' search tool. It'll give you the cheapest price in every month when searching for your ticket from Chicago to Belfast.

  • Snapping up a cheap ticket from Chicago to Belfast couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as the price has fallen.

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

Best time to go to Belfast

  • August is the most popular month for flights from Chicago to Belfast. To skip the crowds, visit Belfast in February.

  • Lock in your flight from Chicago to Belfast for July if you'd like to explore the city during its warmest month. Expect temperatures in Belfast to range from 10ºC to 19ºC.

  • January sees average temperatures of between 1ºC and 8ºC. Search for cheap flights from Chicago to Belfast sometime around then if you want to travel in cooler conditions.

More about Belfast

  • When it comes to searching 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 Chicago to Belfast:

  • Titanic Belfast and Crumlin Road Gaol Visitor Attraction and Conference Centre are just two of the top 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 Chicago to Belfast isn't our only party trick. Check out our car rentals in Belfast and explore on your own terms. We search for deals from trusted car rental providers and put them all in one place. 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.