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Northern Ireland

$295+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$680
(American Airlines)

One-way from

$295
(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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
jue. 8/217:10 pmORD - BHD
1 stop14h 20mAmerican Airlines
jue. 9/49:35 amBHD - ORD
1 stop14h 40mAmerican Airlines
Deal found 6/12$680
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/139:15 pmORD - BHD
1 stop12h 20mBritish Airways
dom. 8/2411:00 amBHD - ORD
1 stop12h 00mBritish Airways
Deal found 6/12$681
This Delta deal was found by Cheapflights users on 6/12. 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.
jue. 7/247:01 pmORD - BHD
2 stops15h 54mDelta
jue. 8/216:30 amBHD - ORD
2 stops18h 58mDelta
Deal found 6/12$770
This Mytrip deal was found by Cheapflights users on 6/12. 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.
dom. 7/277:25 pmORD - BFS
2 stops20h 05mMultiple Airlines
dom. 8/36:50 amBFS - ORD
2 stops20h 25mMultiple Airlines
Deal found 6/12$770
This KLM deal was found by Cheapflights users on 6/12. 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.
jue. 7/246:20 pmMDW - BHD
2 stops20h 45mKLM
jue. 8/216:30 amBHD - MDW
2 stops18h 07mKLM
Deal found 6/12$770
This Delta deal was found by Cheapflights users on 6/11. 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.
mié. 8/136:17 pmMDW - BHD
2 stops20h 58mDelta
dom. 8/246:30 amBHD - MDW
2 stops21h 19mDelta
Deal found 6/11$771
This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/147:23 amSTL - BHD
2 stops23h 32mBritish Airways
lun. 7/216:25 pmBHD - STL
2 stops31h 59mBritish Airways
Deal found 6/11$827
This Trip.com deal was found by Cheapflights users on 6/11. 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.
sáb. 7/264:20 pmORD - BHD
1 stop22h 55mVirgin Atlantic
sáb. 8/26:30 amBHD - ORD
1 stop13h 40mVirgin Atlantic
Deal found 6/11$867
This Mytrip deal was found by Cheapflights users on 6/11. 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.
sáb. 7/267:25 pmORD - BHD
2 stops19h 25mMultiple Airlines
sáb. 8/26:55 amBHD - ORD
3 stops41h 58mMultiple Airlines
Deal found 6/11$924
This Air France deal was found by Cheapflights users on 6/10. 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.
mar. 7/15:41 pmORD - BHD
2 stops17h 14mKLM
mar. 7/86:30 amBHD - ORD
2 stops17h 41mKLM
Deal found 6/10$1,182
This Mytrip deal was found by Cheapflights users on 6/12. 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.
dom. 7/2710:47 amSTL - BFS
3 stops27h 33mMultiple Airlines
dom. 8/310:55 pmBFS - STL
2 stops26h 50mMultiple Airlines
Deal found 6/12$1,187
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/34:55 pmORD - BHD
1 stop21h 15mAer Lingus
vie. 8/86:40 amBHD - ORD
2 stops15h 05mAer Lingus
Deal found 6/12$1,308

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 junio 12, 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

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/21

7:10 pm-3:30 pm

1 stop14h 20m

Belfast City

jue. 9/4

9:35 am-6:15 pm

1 stop14h 40m

$680

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mié. 8/13

9:15 pm-3:35 pm

1 stop12h 20m

Belfast City

dom. 8/24

11:00 am-5:00 pm

1 stop12h 00m

$681

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 7/24

7:01 pm-4:55 pm

2 stops15h 54m

Belfast City

jue. 8/21

6:30 am-7:28 pm

2 stops18h 58m

$770

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

dom. 7/27

7:25 pm-9:30 pm

2 stops20h 05m

Belfast Intl

dom. 8/3

6:50 am-9:15 pm

2 stops20h 25m

$770

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

jue. 7/24

6:20 pm-9:05 pm

2 stops20h 45m

Belfast City

jue. 8/21

6:30 am-6:37 pm

2 stops18h 07m

$770

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

mié. 8/13

6:17 pm-9:15 pm

2 stops20h 58m

Belfast City

dom. 8/24

6:30 am-9:49 pm

2 stops21h 19m

$771

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

lun. 7/14

7:23 am-12:55 pm

2 stops23h 32m

Belfast City

lun. 7/21

6:25 pm-8:24 pm

2 stops31h 59m

$827

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

sáb. 7/26

4:20 pm-9:15 pm

1 stop22h 55m

Belfast City

sáb. 8/2

6:30 am-2:10 pm

1 stop13h 40m

$867

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

sáb. 7/26

7:25 pm-8:50 pm

2 stops19h 25m

Belfast City

sáb. 8/2

6:55 am-6:53 pm

3 stops41h 58m

$924

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mar. 7/1

5:41 pm-4:55 pm

2 stops17h 14m

Belfast City

mar. 7/8

6:30 am-6:11 pm

2 stops17h 41m

$1,182

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 25 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 junio 12, 2025.

When flying from Illinois to Northern Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 junio 12, 2025.
To help decide which airline to fly from Illinois to Northern Ireland, see what other customers have to say about Delta, KLM and Virgin Atlantic. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,117 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Illinois to Northern Ireland one-way?

    One-way options have recently been found by users for as low as $379 on British Airways. Other airlines that offer cheap prices include American Airlines from $380 and Virgin Atlantic from $429 one-way.

  • 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.

  • What is the cheapest month to book a flight from Illinois to Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Northern Ireland (average of $657). Flying from Illinois to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$300Average$718FlexibilityNo cancel feeOn-time70%

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