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$715+ Cheap flights from Northern Ireland to Illinois

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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
1 adult, Economy
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Find flight deals from Northern Ireland to Illinois

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 November 24, 2025.

This Expedia deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:30 amBHD - ORD
1 stop13h 50mMultiple Airlines
Fri 12/269:41 amORD - BHD
2 stops25h 09mMultiple Airlines
Deal found 11/21$1,223
This Expedia deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:30 amBHD - ORD
1 stop13h 50mKLM
Fri 12/264:25 pmORD - BHD
1 stop22h 35mKLM
Deal found 11/21$1,239
This lastminute.com deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:20 amBHD - ORD
2 stops15h 35mAer Lingus
Fri 12/263:50 pmORD - BHD
2 stops15h 35mAer Lingus
Deal found 11/21$1,339
This Delta deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:20 pmBHD - ORD
1 stop27h 00mDelta
Thu 12/115:07 pmORD - BHD
2 stops17h 43mDelta
Deal found 11/21$1,716
This British Airways deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/78:25 pmBHD - ORD
1 stop25h 00mBritish Airways
Thu 12/118:35 pmORD - BHD
1 stop14h 05mBritish Airways
Deal found 11/21$2,467

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 November 24, 2025.

Round-trip from

$816
(American Airlines)

One-way from

$715
(Kiwi.com)
From Northern Ireland to Illinois
Search Deals
One-way flight from Northern Ireland to Illinois
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated November 24, 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

Fri 1/30

8:45 am-6:45 pm

1 stop16h 00m

Chicago O'Hare Intl

Tue 2/10

9:45 pm-6:40 pm

1 stop14h 55m

$794

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 1/30

7:20 am-7:45 pm

2 stops18h 25m

Chicago O'Hare Intl

Tue 2/10

6:30 pm-4:50 pm

2 stops16h 20m

$810

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 1/14

9:15 am-3:25 pm

1 stop12h 10m

Chicago O'Hare Intl

Sun 1/18

8:45 pm-4:50 pm

1 stop14h 05m

$815

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 1/30

5:20 pm-2:20 pm

1 stop27h 00m

Chicago O'Hare Intl

Tue 2/10

10:35 am-4:50 pm

2 stops24h 15m

$823

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 1/30

6:45 am-1:50 pm

1 stop13h 05m

Chicago O'Hare Intl

Fri 1/30

6:30 pm-8:50 pm

2 stops20h 20m

$861

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/6

6:30 am-7:30 pm

3 stops19h 00m

Chicago O'Hare Intl

Tue 1/13

3:55 pm-2:45 pm

3 stops16h 50m

$1,062

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 11/30

3:45 pm-12:56 pm

3 stops51h 11m

$715

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 11/30

2:15 pm-8:00 pm

3 stops59h 45m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

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 round-trip 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.

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?

    For as low as $815, British Airways can have you in Illinois from Northern Ireland in 12h 10m. The distance from Northern Ireland to Illinois is about 3644 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 vacation 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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