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Cheap flights from Illinois to Northern Ireland from £224

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 14/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Illinois to Northern Ireland

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Northern Ireland (GBNIR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£521

One-way from

£224
Iberia
  • Iberia
  • 3/3-10/3
  • 3 total stops
  • 46h 50m total
  • Illinois to Northern Ireland
14/2
  • 14/2
  • 2 total stops
  • 32h 13m total
  • Illinois to Northern Ireland

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 17 January 2025.

Wed 8/1020:35ORD - BHD
1 stop13h 00mMultiple Airlines
Tue 14/1020:20BHD - ORD
1 stop21h 30mMultiple Airlines
Deal found 16/1£499
Wed 8/1011:45ORD - BHD
2 stops19h 45mBritish Airways
Tue 14/1006:35BHD - ORD
1 stop17h 40mBritish Airways
Deal found 16/1£511
Mon 3/317:00ORD - BHD
1 stop11h 30mIberia
Mon 10/309:10BHD - ORD
2 stops35h 20mIberia
Deal found 17/1£521
Thu 20/220:25ORD - BHD
1 stop14h 15mFinnair
Tue 25/206:35BHD - ORD
1 stop14h 10mFinnair
Deal found 17/1£537
Sun 2/319:40ORD - BFS
2 stops20h 20mMultiple Airlines
Sun 9/321:55BFS - ORD
2 stops25h 55mMultiple Airlines
Deal found 17/1£545
Thu 20/220:25ORD - BHD
1 stop14h 15mAmerican Airlines
Tue 25/208:40BHD - ORD
2 stops16h 40mAmerican Airlines
Deal found 17/1£550
Mon 3/312:44MDW - BHD
2 stops22h 06mDelta
Mon 10/306:30BHD - MDW
2 stops16h 32mDelta
Deal found 17/1£587
Fri 17/113:40ORD - BHD
2 stops21h 10mDelta
Fri 24/106:30BHD - ORD
2 stops20h 58mDelta
Deal found 16/1£618
Wed 8/1018:50MDW - BHD
2 stops16h 05mKLM
Tue 14/1006:30BHD - MDW
2 stops16h 31mKLM
Deal found 16/1£830
Tue 11/221:00ORD - BHD
2 stops18h 10mAer Lingus
Sat 15/206:55BHD - ORD
2 stops18h 20mAer Lingus
Deal found 16/1£900
Mon 14/718:15STL - BHD
2 stops17h 15mBritish Airways
Mon 21/719:30BHD - STL
2 stops26h 28mBritish Airways
Deal found 16/1£943
Sun 2/311:15MDW - BFS
3 stops28h 45mMultiple Airlines
Sun 9/321:10BFS - MDW
3 stops42h 10mMultiple Airlines
Deal found 16/1£1,148

Find flights from Illinois to Northern Ireland within your budget

Customise 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 858,174 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 3/3

17:00-10:30

1 stop11h 30m

Belfast City

Mon 10/3

09:10-15:30

2 stops35h 20m

£521

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 20/2

20:25-16:40

1 stop14h 15m

Belfast City

Tue 25/2

06:35-14:45

1 stop14h 10m

£537

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 2/3

19:40-22:00

2 stops20h 20m

Belfast Intl

Sun 9/3

21:55-18:50

2 stops25h 55m

£545

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 20/2

20:25-16:40

1 stop14h 15m

Belfast City

Tue 25/2

08:40-19:20

2 stops16h 40m

£550

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 20/2

17:36-16:40

2 stops17h 04m

Belfast City

Tue 25/2

08:40-19:45

2 stops17h 05m

£557

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Mon 3/3

12:44-16:50

2 stops22h 06m

Belfast City

Mon 10/3

06:30-18:02

2 stops16h 32m

£587

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 7/3

20:11-17:15

1 stop15h 04m

Belfast City

Tue 11/3

11:30-19:45

1 stop13h 15m

£648

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 11/2

21:00-21:10

2 stops18h 10m

Belfast City

Sat 15/2

06:55-19:15

2 stops18h 20m

£900

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 14/7

18:15-17:30

2 stops17h 15m

Belfast City

Mon 21/7

19:30-15:58

2 stops26h 28m

£943

ChicagoBelfast

MDW - BFS

MDWBFS

Chicago Midway

Sun 2/3

11:15-22:00

3 stops28h 45m

Belfast Intl

Sun 9/3

21:10-10:20

3 stops42h 10m

£1,148

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 22 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 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.

Travel insights for flights from Illinois to Northern Ireland

Get recent, data-driven insights about flights from Illinois to Northern Ireland including ideal travel times, pricing trends, and more.

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 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 17 January 2025.
To help decide which airline to fly from Illinois to Northern Ireland, see what other customers have to say about Aer Lingus and British Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very Good
8,513 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.8
Good
1,339 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.6
Good
1,285 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.4
Good
1,487 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.2
Good
10,000 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £339. KLM flights start at £349 while deals on Finnair start at £367 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 holiday 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, January is the cheapest month in which you can book a flight from Illinois to Northern Ireland (average of £67). Flying from Illinois to Northern Ireland in July is currently the most expensive (average of £90). 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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How does Cheapflights help users find flights from Illinois to Northern Ireland?

Cheapflights helps you search for flights from Illinois to Northern Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Northern Ireland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Northern Ireland from Illinois.

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

Yes, we can. To see specific flights from Illinois to Northern Ireland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Northern Ireland become cheaper?

Of course! You can now track prices for flights from Illinois to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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