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Cheap flights from Belfast to Chicago from £324

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — CHI
3 Sep — 10 Sep1
1 adult

Cheap flight deals from Belfast to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 August 2025.

Round-trip from

£493

One-way from

£324

Popular in

August

Cheapest in

November

Average price

£886
KLM
  • KLM
  • 24/9-21/10
  • 2 total stops
  • 32h 50m total
  • Belfast to Chicago
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24/9
  • 24/9
  • 3 total stops
  • 33h 30m total
  • Belfast to Chicago
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Belfast to Chicago

Cheapest flights from Belfast to Chicago
Explore the most affordable flight options available from Belfast to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Wed 24/906:30BHD - ORD
1 stop14h 10mKLM
Tue 21/1016:15ORD - BHD
1 stop18h 40mKLM
Deal found 28/8£493
Wed 24/906:30BHD - ORD
2 stops17h 15mDelta
Tue 21/1017:40ORD - BHD
2 stops21h 35mDelta
Deal found 27/8£497
Wed 1/1007:25BFS - ORD
3 stops35h 10mMultiple Airlines
Mon 6/1006:00ORD - BFS
2 stops27h 50mMultiple Airlines
Deal found 27/8£514
Sat 11/1016:50BFS - ORD
2 stops29h 20mMultiple Airlines
Sat 18/1009:55ORD - BFS
3 stops25h 55mMultiple Airlines
Deal found 27/8£644

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
Use the filters below to find and compare flights from Belfast to Chicago that are best for you.

Fly from

Belfast

Fly to

Chicago

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 24/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Tue 21/10

16:15-16:55

1 stop18h 40m

£493

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 24/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Tue 21/10

11:02-16:55

2 stops23h 53m

£493

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/10

07:25-12:35

3 stops35h 10m

Chicago O'Hare Intl

Mon 6/10

06:00-15:50

2 stops27h 50m

£514

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 11/10

16:50-16:10

2 stops29h 20m

Chicago O'Hare Intl

Sat 18/10

09:55-17:50

3 stops25h 55m

£644

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 24/9

09:05-12:35

3 stops33h 30m

£324

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 25/9

20:15-15:17

2 stops49h 02m

£346

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 24/9

06:30-14:40

1 stop14h 10m

£930

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 25/9

06:30-14:10

1 stop13h 40m

£960

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Best time to book a flight from Belfast to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Belfast with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Chicago
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 29 August 2025.
Read through reviews of airlines operating flights from Belfast to Chicago, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,320 reviews
Check prices

Overall

6.7

Entertainment

6.4

Food

6.3

Comfort

6.7

Boarding

6.9

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,320 reviews
British Airways
6.7
Okay
7,320 reviews
Check prices

Overall

6.7

Entertainment

6.4

Food

6.3

Comfort

6.7

Boarding

6.9

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Belfast to Chicago?

    There are many flights that can get you from Belfast to Chicago in 14h 10m. Fly via KLM or Delta to get the fastest option. Belfast and Chicago are separated by a distance of 3644 mi.

  • What is the cheapest airline to fly from Belfast to Chicago round-trip?

    British Airways, at £481, was found to be the cheapest airline from Belfast to Chicago.. This flight start at 27% lower than the current average price 3 months from now.

  • Can I find deals for flights from Belfast to Chicago that include hotel bookings?

    Yes. In addition to deals on Belfast to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Chicago.

  • Can I find deals for business class flights from Belfast to Chicago?

    Yes. Cheapflights offers flight deals from Belfast to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast to Chicago?

    Currently, January is the cheapest month in which you can book a flight from Belfast to Chicago (average of £595). Flying from Belfast to Chicago in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to O'Hare Intl flights
Belfast City to O'Hare Intl flights

Top airline flying from Belfast to Chicago

Discover the top airline that operate flights from Belfast to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£481Average£617FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast to Chicago?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chicago from Belfast today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast to Chicago?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast to Chicago.

Can Cheapflights find flights from Belfast to Chicago with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast to Chicago, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Belfast to Chicago become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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