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Northern Ireland

$233+ Cheap flights from Illinois to Northern Ireland

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Illinois to Northern Ireland

Keep the following information in mind while searching for Illinois to Northern Ireland flight deals. Data was last updated October 30, 2025.

Round-trip from

$650
(Air France)

One-way from

$233
(Kiwi.com)
From Illinois to Northern Ireland
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One-way flight from Illinois to Northern Ireland
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Find flight deals from Illinois to Northern Ireland

Cheapest flights from Illinois to Northern Ireland
Explore the most affordable flight options available from Illinois to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:25 pmORD - BHD
1 stop14h 25mAmerican Airlines
Thu 12/46:35 amBHD - ORD
1 stop16h 25mAmerican Airlines
Deal found 10/28$633
This Air France deal was found by Cheapflights users on 10/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:36 pmSTL - BHD
2 stops20h 14mMultiple Airlines
Sun 12/76:30 amBHD - STL
2 stops17h 26mMultiple Airlines
Deal found 10/29$650
This Iberia deal was found by Cheapflights users on 10/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:42 pmORD - BHD
2 stops13h 48mMultiple Airlines
Thu 12/186:35 amBHD - ORD
1 stop13h 15mMultiple Airlines
Deal found 10/28$658
This Air France deal was found by Cheapflights users on 10/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:25 pmORD - BHD
1 stop18h 25mMultiple Airlines
Wed 11/56:30 amBHD - ORD
1 stop13h 50mMultiple Airlines
Deal found 10/28$664
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 10/2910:25 amORD - BHD
2 stops25h 25mDelta
Wed 11/56:30 amBHD - ORD
1 stop13h 50mDelta
Deal found 10/28$668
This KLM deal was found by Cheapflights users on 10/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:15 pmORD - BHD
2 stops16h 35mKLM
Thu 12/46:30 amBHD - ORD
2 stops17h 16mKLM
Deal found 10/28$669
This Virgin Atlantic deal was found by Cheapflights users on 10/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:25 pmORD - BHD
1 stop18h 25mVirgin Atlantic
Sun 12/76:30 amBHD - ORD
1 stop13h 50mVirgin Atlantic
Deal found 10/27$674
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 10/291:08 pmMDW - BHD
2 stops22h 42mDelta
Wed 11/56:30 amBHD - MDW
2 stops17h 55mDelta
Deal found 10/28$678
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 11/256:30 pmORD - BFS
2 stops21h 20mMultiple Airlines
Thu 12/46:30 amBFS - ORD
2 stops16h 50mMultiple Airlines
Deal found 10/28$682
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:17 pmORD - BHD
2 stops15h 13mAmerican Airlines
Thu 12/189:05 amBHD - ORD
2 stops17h 59mAmerican Airlines
Deal found 10/28$739
This Mytrip deal was found by Cheapflights users on 10/28. 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 12/123:50 pmORD - BFS
2 stops17h 20mMultiple Airlines
Thu 12/189:05 pmBFS - ORD
2 stops22h 55mMultiple Airlines
Deal found 10/28$772
This oojo deal was found by Cheapflights users on 10/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/254:06 pmORD - BHD
2 stops16h 44mBritish Airways
Mon 12/17:25 pmBHD - ORD
2 stops47h 05mBritish Airways
Deal found 10/29$796

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Northern Ireland 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 October 30, 2025.
Use the filters below to find and compare flights from Illinois to Northern Ireland that are best for you.

Fly from

Illinois

Fly to

Northern Ireland

Route

Depart

Return

Price

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 12/1

2:36 pm-4:50 pm

2 stops20h 14m

Belfast City

Sun 12/7

6:30 am-5:56 pm

2 stops17h 26m

$650

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 4/12

7:15 pm-1:05 pm

1 stop11h 50m

Belfast City

Wed 4/22

11:30 am-6:15 pm

1 stop12h 45m

$654

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 4/12

10:35 pm-6:45 pm

1 stop14h 10m

Belfast City

Wed 4/22

6:50 am-2:40 pm

1 stop13h 50m

$658

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 12/3

4:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Sun 12/7

6:30 am-2:20 pm

1 stop13h 50m

$674

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 1/19

6:05 am-1:35 pm

2 stops25h 30m

Belfast City

Thu 1/22

7:25 am-9:44 am

3 stops32h 19m

$679

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 11/25

6:30 pm-9:50 pm

2 stops21h 20m

Belfast Intl

Thu 12/4

6:30 am-5:20 pm

2 stops16h 50m

$682

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 4/12

6:45 pm-9:20 pm

2 stops20h 35m

Belfast City

Wed 4/22

6:30 am-6:05 pm

2 stops17h 35m

$695

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/18

6:10 pm-10:15 am

1 stop11h 05m

Belfast City

Sun 3/22

3:10 pm-2:50 pm

1 stop28h 40m

$703

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/18

6:10 pm-10:15 am

1 stop11h 05m

Belfast City

Sun 3/22

6:30 am-10:48 pm

2 stops21h 18m

$713

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 4/12

10:40 pm-11:10 pm

2 stops18h 30m

Belfast Intl

Wed 4/22

8:55 am-6:15 pm

2 stops39h 20m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 33 results
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Best time to book a flight from Illinois to Northern Ireland

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

What is the cheapest time of day to fly from IL to NIR?

Find hourly flight availability from Illinois to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Northern Ireland in the morning. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated October 30, 2025.
Get a feel of what it's like to fly with British Airways from Illinois to Northern Ireland by reading reviews from past customers. 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
7,487 reviews

Comfort

6.7

Entertainment

6.4

Food

6.3

Overall

6.7

Boarding

6.9

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,487 reviews
British Airways
6.7
Okay
7,487 reviews

Comfort

6.7

Entertainment

6.4

Food

6.3

Overall

6.7

Boarding

6.9

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

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

    A quick flight from Illinois to Northern Ireland can take about 11h 50m. British Airways provides one of the quickest options available for as low as $654. Illinois and Northern Ireland are separated by a distance of 3644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

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

Discover the top airline that operate flights from Illinois to Northern Ireland. 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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$706FlexibilityNo cancel feeOn-time70%

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