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$610+ Cheap flights from Northern Ireland to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
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 29, 2025.

This Mytrip deal was found by Cheapflights users on 11/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:50 amBFS - ORD
3 stops38h 15mMultiple Airlines
Fri 1/27:40 pmORD - BFS
2 stops20h 20mMultiple Airlines
Deal found 11/28$1,118
This Delta deal was found by Cheapflights users on 11/28. 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.
Fri 12/265:20 pmBHD - ORD
2 stops30h 02mDelta
Fri 1/24:25 pmORD - BHD
1 stop18h 25mDelta
Deal found 11/28$1,225
This Mytrip deal was found by Cheapflights users on 11/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:50 amBHD - ORD
2 stops17h 05mAer Lingus
Fri 1/27:40 pmORD - BHD
2 stops19h 10mAer Lingus
Deal found 11/28$1,330
This Trip.com deal was found by Cheapflights users on 11/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:45 amBHD - ORD
1 stop14h 15mMultiple Airlines
Fri 1/26:30 pmORD - BHD
1 stop13h 45mMultiple Airlines
Deal found 11/28$1,421

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 29, 2025.

Round-trip from

$610
(Mytrip)
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 29, 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

BFS - ORD

BFSORD

Belfast Intl

Tue 1/13

8:25 pm-5:20 pm

3 stops26h 55m

Chicago O'Hare Intl

Tue 1/20

6:30 pm-8:15 pm

2 stops19h 45m

$610

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 1/12

9:10 pm-5:20 pm

3 stops26h 10m

Chicago O'Hare Intl

Mon 1/19

6:30 pm-7:05 pm

2 stops18h 35m

$613

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 1/11

8:55 pm-5:20 pm

3 stops26h 25m

Chicago O'Hare Intl

Sun 1/18

6:30 pm-6:55 pm

2 stops18h 25m

$653

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 1/14

9:15 am-5:00 pm

1 stop13h 45m

Chicago O'Hare Intl

Sun 1/18

5:10 pm-10:20 am

1 stop11h 10m

$716

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 1/14

5:20 pm-5:26 pm

2 stops30h 06m

Chicago O'Hare Intl

Sun 1/18

2:00 pm-4:50 pm

2 stops20h 50m

$859

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 1/14

5:20 pm-5:55 pm

2 stops30h 35m

Chicago O'Hare Intl

Sun 1/18

1:57 pm-4:50 pm

2 stops20h 53m

$861

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 12/26

8:50 am-5:05 pm

3 stops38h 15m

Chicago O'Hare Intl

Fri 1/2

7:40 pm-10:00 pm

2 stops20h 20m

$1,118

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 12/26

5:20 pm-5:22 pm

2 stops30h 02m

Chicago O'Hare Intl

Fri 1/2

4:25 pm-4:50 pm

1 stop18h 25m

$1,225

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 12/26

6:50 am-5:55 pm

2 stops17h 05m

Chicago O'Hare Intl

Fri 1/2

7:40 pm-8:50 pm

2 stops19h 10m

$1,330

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

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 $716, American Airlines can have you in Illinois from Northern Ireland in 13h 45m. The distance from Northern Ireland to Illinois is about 3644 mi.

  • 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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Alternative routes for Northern Ireland to Illinois

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