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Cheap flights from Northern Ireland to Illinois from £560

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Northern Ireland to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Illinois
Explore the most affordable flight options available from Northern Ireland to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2025.

Mon 8/1207:20BHD - ORD
2 stops16h 00mMultiple Airlines
Mon 15/1218:30ORD - BHD
2 stops20h 00mMultiple Airlines
Deal found 1/11£560
Mon 8/1206:30BHD - ORD
1 stop13h 50mDelta
Mon 15/1210:45ORD - BHD
2 stops24h 05mDelta
Deal found 1/11£591
Mon 8/1209:15BHD - ORD
1 stop12h 10mAmerican Airlines
Mon 15/1218:35ORD - BHD
2 stops18h 00mAmerican Airlines
Deal found 2/11£602
Mon 8/1222:20BFS - ORD
2 stops29h 51mMultiple Airlines
Mon 15/1217:20ORD - BFS
1 stop22h 20mMultiple Airlines
Deal found 1/11£883

Cheap flight deals from Northern Ireland to Illinois

Keep the following information in mind while searching for Northern Ireland to Illinois flight deals. Data was last updated 3 November 2025.

Round-trip from

£560
8/12-15/12
  • 8/12-15/12
  • 4 total stops
  • 36h 00m total
  • Northern Ireland to Illinois
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Illinois 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 3 November 2025.
Use the filters below to find and compare flights from Northern Ireland to Illinois that are best for you.

Fly from

Northern Ireland

Fly to

Illinois

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 8/12

07:20-17:20

2 stops16h 00m

Chicago O'Hare Intl

Mon 15/12

18:30-20:30

2 stops20h 00m

£560

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 8/12

06:30-14:20

1 stop13h 50m

Chicago O'Hare Intl

Mon 15/12

10:45-16:50

2 stops24h 05m

£591

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 8/12

09:15-15:25

1 stop12h 10m

Chicago O'Hare Intl

Mon 15/12

18:35-18:35

2 stops18h 00m

£602

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 31/3

06:45-16:00

3 stops39h 15m

Chicago O'Hare Intl

Sat 4/4

19:25-20:40

2 stops19h 15m

£615

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 5/3

09:05-15:25

1 stop12h 20m

Chicago O'Hare Intl

Mon 9/3

13:30-10:40

2 stops16h 10m

£623

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 8/12

22:20-22:11

2 stops29h 51m

Chicago O'Hare Intl

Mon 15/12

17:20-21:40

1 stop22h 20m

£883

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 23/2

18:50-20:00

3 stops55h 10m

£1,036

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Best time to book a flight from Northern Ireland to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 3 November 2025.
See what other customers who have flown with British Airways from Northern Ireland to Illinois have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,494 reviews
Check prices

Overall

6.7

Entertainment

6.4

Food

6.3

Crew

7.6

Comfort

6.7

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,494 reviews
British Airways
6.7
Okay
7,494 reviews
Check prices

Overall

6.7

Entertainment

6.4

Food

6.3

Crew

7.6

Comfort

6.7

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Related info for your journey

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

    Departing from Northern Ireland to Illinois will take you 12h 10m. There are 3644 mi between Northern Ireland and Illinois. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Illinois 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 Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Northern Ireland to Illinois

Discover the top airline that operate flights from Northern Ireland to Illinois. 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 3 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£494Average£627FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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

Certainly. Search results for flights to Illinois from Northern Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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