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Cheap flights from Northern Ireland to Chicago from £386

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — CHI
26 Aug — 2 Sep1
1 adult

Cheap flight deals from Northern Ireland to Chicago

Keep the following information in mind while searching for Northern Ireland to Chicago flight deals. Data was last updated 21 August 2025.

Round-trip from

£528

One-way from

£386

Popular in

August

Cheapest in

September

Average price

£888
10/9-25/9
  • 10/9-25/9
  • 6 total stops
  • 57h 05m total
  • Northern Ireland to Chicago
Search Deals
18/9
  • 18/9
  • 2 total stops
  • 25h 20m total
  • Northern Ireland to Chicago
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Northern Ireland to Chicago

Cheapest flights from Northern Ireland to Chicago
Explore the most affordable flight options available from Northern Ireland to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 August 2025.

Wed 10/907:25BFS - ORD
3 stops33h 30mMultiple Airlines
Thu 25/918:00ORD - BFS
3 stops23h 35mMultiple Airlines
Deal found 20/8£528
Fri 3/1006:05BFS - ORD
2 stops21h 10mMultiple Airlines
Fri 10/1019:25ORD - BFS
2 stops18h 40mMultiple Airlines
Deal found 19/8£531
Thu 18/906:30BHD - ORD
1 stop13h 40mVirgin Atlantic
Thu 25/916:15ORD - BHD
1 stop23h 00mVirgin Atlantic
Deal found 20/8£554
Thu 18/906:30BHD - ORD
2 stops17h 34mDelta
Thu 25/918:50ORD - BHD
2 stops20h 25mDelta
Deal found 20/8£559
Mon 15/908:10BFS - ORD
2 stops16h 50mMultiple Airlines
Mon 22/915:45ORD - BFS
2 stops13h 35mMultiple Airlines
Deal found 18/8£573
Fri 19/906:30BHD - ORD
1 stop13h 40mDelta
Fri 26/918:28ORD - BHD
2 stops16h 27mDelta
Deal found 20/8£586
Thu 18/916:55BHD - ORD
3 stops29h 35mMultiple Airlines
Thu 25/918:00ORD - BHD
2 stops20h 25mMultiple Airlines
Deal found 20/8£706

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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 21 August 2025.
Use the filters below to find and compare flights from Northern Ireland to Chicago that are best for you.

Fly from

Northern Ireland

Fly to

Chicago

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/9

07:25-10:55

3 stops33h 30m

Chicago O'Hare Intl

Thu 25/9

18:00-23:35

3 stops23h 35m

£528

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 3/10

06:05-21:15

2 stops21h 10m

Chicago O'Hare Intl

Fri 10/10

19:25-20:05

2 stops18h 40m

£531

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 18/9

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Thu 25/9

16:15-21:15

1 stop23h 00m

£554

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 18/9

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Thu 25/9

18:50-21:15

2 stops20h 25m

£554

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 15/9

08:10-19:00

2 stops16h 50m

Chicago O'Hare Intl

Mon 22/9

15:45-11:20

2 stops13h 35m

£573

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 19/9

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Fri 26/9

16:15-21:15

1 stop23h 00m

£586

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 19/9

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Fri 26/9

18:28-16:55

2 stops16h 27m

£586

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 18/9

16:55-16:30

3 stops29h 35m

Chicago O'Hare Intl

Thu 25/9

18:00-20:25

2 stops20h 25m

£706

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 18/9

21:10-16:30

2 stops25h 20m

£386

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 18/9

20:15-16:30

2 stops26h 15m

£410

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Best time to book a flight from Northern Ireland to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Northern Ireland 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 Northern Ireland to Chicago

How much does it cost for a return flight from Northern Ireland to Chicago?

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland 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 Northern Ireland to Chicago?

    For as low as £554, Virgin Atlantic can have you in Chicago from Northern Ireland in 13h 40m. There are 3644 mi between Northern Ireland and Chicago.

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

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

  • How can I find direct flights from Northern Ireland to Chicago?

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland 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 Northern Ireland to Chicago?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Chicago (average of £595). Flying from Northern Ireland 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

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Alternative routes for Northern Ireland to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to O'Hare Intl flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Heathrow to Midway flights
Stansted to O'Hare Intl flights
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Manchester to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Heathrow to St. Louis flights
Manchester to Midway flights
Gatwick to Midway flights
Gatwick to St. Louis flights
Birmingham to O'Hare Intl flights
Edinburgh to Midway flights
London City to St. Louis flights
Glasgow Intl to O'Hare Intl flights
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Glasgow Intl to Midway flights
Newcastle upon Tyne to Midway flights
Edinburgh to St. Louis flights
Heathrow to Peoria flights
London City to Midway flights
Leeds to O'Hare Intl flights
Birmingham to St. Louis flights
Manchester to St. Louis flights
Southampton to O'Hare Intl flights
Birmingham to Midway flights
London City to Peoria flights
Bristol to O'Hare Intl flights
Liverpool to O'Hare Intl flights
Norwich to O'Hare Intl flights
Inverness to O'Hare Intl flights
Glasgow Intl to St. Louis flights
Heathrow to Moline flights
London City to Moline flights
Leeds to Midway flights
Exeter to O'Hare Intl flights
Cardiff to O'Hare Intl flights
Heathrow to Springfield flights
Gatwick to Evansville flights
Southampton to Midway flights
Bristol to Midway flights
London City to Evansville flights
Manchester to Moline flights
Glasgow Intl to Moline flights
Doncaster to O'Hare Intl flights
Heathrow to Dubuque flights
Newcastle upon Tyne to St. Louis flights
Leeds to St. Louis flights
Cardiff to Midway flights

Top airline flying from Northern Ireland to Chicago

Discover the top airline that operate flights from Northern Ireland 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 21 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£482Average£619FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Northern Ireland to Chicago?

Cheapflights makes it easy to find Northern Ireland to Chicago flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland 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 Northern Ireland to Chicago.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Chicago flexibly with Cheapflights today.

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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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