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Cheap flights from Northern Ireland to Chicago from £316

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 25/11. 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
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Chicago

Enter your travel dates to find the best prices.

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 27 July 2026.

Mon 21/909:10
BFS
-
ORD
2 stops34h 50m
Multiple Airlines
Wed 30/919:25
ORD
-
BFS
2 stops20h 55m
Multiple Airlines
Deal found 24/7£596
Mon 7/921:35
BFS
-
ORD
3 stops28h 37m
Multiple Airlines
Mon 14/919:25
ORD
-
BFS
2 stops14h 50m
Multiple Airlines
Deal found 23/7£632
Mon 21/911:35
BHD
-
ORD
1 stop12h 40m
British Airways
Wed 30/917:00
ORD
-
BHD
1 stop14h 35m
British Airways
Deal found 24/7£689
Mon 21/911:05
BHD
-
ORD
2 stops14h 10m
Multiple Airlines
Wed 30/915:45
ORD
-
BHD
2 stops17h 45m
Multiple Airlines
Deal found 24/7£692
Sun 23/806:45
BFS
-
ORD
3 stops43h 07m
Multiple Airlines
Sun 30/822:25
ORD
-
BFS
2 stops16h 35m
Multiple Airlines
Deal found 24/7£755
Sun 23/806:50
BHD
-
ORD
2 stops18h 25m
Aer Lingus
Sun 30/815:45
ORD
-
BHD
2 stops15h 25m
Aer Lingus
Deal found 24/7£782
Sun 23/807:00
BHD
-
ORD
3 stops21h 05m
Multiple Airlines
Sun 30/819:25
ORD
-
BHD
2 stops19h 40m
Multiple Airlines
Deal found 24/7£984
Sun 23/817:30
BHD
-
ORD
1 stop27h 00m
Virgin Atlantic
Sun 30/810:30
ORD
-
BHD
2 stops16h 50m
Virgin Atlantic
Deal found 24/7£990
Sun 23/817:30
BHD
-
ORD
1 stop27h 00m
KLM
Sun 30/816:20
ORD
-
BHD
1 stop11h 00m
KLM
Deal found 24/7£992

Find 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 27 July 2026.

Round-trip from

£596

One-way from

£316
21/9-30/9
  • 21/9-30/9
  • 4 total stops
  • 55h 45m total
  • Northern Ireland to Chicago
Search Deals
25/11
  • 25/11
  • 3 total stops
  • 39h 25m total
  • Northern Ireland to Chicago
Search Deals

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 27 July 2026.
Use the filters below to find and compare flights from Northern Ireland to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 7/9

21:25-19:48

3 stops28h 23m

Chicago O'Hare Intl

Mon 14/9

19:25-20:40

2 stops19h 15m

£635

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 21/9

17:15-18:15

3 stops31h 00m

Chicago O'Hare Intl

Wed 30/9

19:25-22:20

2 stops20h 55m

£685

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 21/9

09:40-21:12

2 stops17h 32m

Chicago O'Hare Intl

Wed 30/9

16:01-13:35

2 stops15h 34m

£694

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 23/8

06:45-19:52

3 stops43h 07m

Chicago O'Hare Intl

Sun 30/8

22:25-21:00

2 stops16h 35m

£755

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 23/8

06:50-19:15

2 stops18h 25m

Chicago O'Hare Intl

Sun 30/8

15:45-13:10

2 stops15h 25m

£782
Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 15/1

11:30-18:45

1 stop13h 15m

Chicago O'Hare Intl

Sun 17/1

13:31-10:20

2 stops14h 49m

£784
Cheapest one-way

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 25/11

07:55-17:20

3 stops39h 25m

£316

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 12/12

09:30-15:30

3 stops36h 00m

£332

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 12/12

09:25-15:30

3 stops36h 05m

£351

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 13/12

17:05-18:25

2 stops31h 20m

£363

Flights are sorted by cheapest return flights first.

Deals found on 23/7

Showing 1-10 of 19 resultsSorted by cheapest first
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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

No data available for this route at this time. Please check back soon.

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 £694, British Airways can have you in Chicago from Northern Ireland in 17h 32m. There are 3644 mi between Northern Ireland and Chicago. This flight may include one or multiple stops.

  • 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.

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
Stansted to O'Hare Intl flights
Heathrow to Midway flights
Luton to O'Hare Intl flights
Heathrow to St. Louis flights
Edinburgh to O'Hare Intl flights
Manchester to O'Hare Intl flights
Birmingham to O'Hare Intl flights
Manchester to Midway flights
Gatwick to Midway flights
Edinburgh to Midway flights
Gatwick to St. Louis flights
Stansted to St. Louis flights
Birmingham to Midway flights
London City to St. Louis flights
Glasgow Intl to O'Hare Intl flights
Edinburgh to St. Louis flights
Newcastle upon Tyne to O'Hare Intl flights
Glasgow Intl to Midway flights
Luton to St. Louis flights
Manchester to St. Louis flights
Leeds to O'Hare Intl flights
Bristol to O'Hare Intl flights
London City to Midway flights
Belfast Intl to O'Hare Intl flights
Cardiff to Midway flights
Cardiff to O'Hare Intl flights
Birmingham to St. Louis flights
Newcastle upon Tyne to Midway flights
Liverpool to O'Hare Intl flights
Bristol to Midway flights
Heathrow to Moline flights
Exeter to O'Hare Intl flights
Southampton to O'Hare Intl flights
Southend to O'Hare Intl flights
Heathrow to Peoria flights
Grimsby to St. Louis flights
Leeds to Midway flights
Grimsby to O'Hare Intl flights
Belfast City to O'Hare Intl flights
Manchester to Moline flights
Manchester to Peoria flights
Heathrow to Champaign flights
Southampton to Midway flights
Newquay to O'Hare Intl flights
Darlington to O'Hare Intl flights
Inverness to O'Hare Intl flights
Darlington to Midway flights

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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.

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