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Cheap flights from Northern Ireland to Illinois from £461

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
23 Dec — 30 Dec1
1 adult

Cheap flight deals from Northern Ireland to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Northern Ireland (GBNIR) to Illinois (USIL). 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 18 December 2024.

Round-trip from

£461
16/1-23/1
  • 16/1-23/1
  • 4 total stops
  • 37h 00m total
  • Northern Ireland to Illinois
Search Deals

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 18 December 2024.

Wed 18/1211:30BHD - ORD
1 stop13h 15mBritish Airways
Sun 22/1217:00ORD - BHD
1 stop11h 20mBritish Airways
Deal found 17/12£1,254
Wed 18/1206:35BHD - ORD
1 stop16h 25mMultiple Airlines
Sun 22/1218:25ORD - BHD
1 stop13h 30mMultiple Airlines
Deal found 16/12£1,284
Wed 18/1218:05BHD - ORD
2 stops25h 55mAer Lingus
Sat 21/1219:40ORD - BHD
2 stops11h 55mAer Lingus
Deal found 17/12£1,328
Wed 18/1215:40BHD - ORD
2 stops22h 02mAmerican Airlines
Sun 22/1222:00ORD - BHD
1 stop14h 40mAmerican Airlines
Deal found 17/12£1,369
Wed 18/1214:15BFS - ORD
2 stops49h 55mMultiple Airlines
Sun 22/1217:00ORD - BFS
1 stop21h 35mMultiple Airlines
Deal found 17/12£1,478
Wed 18/1206:30BHD - ORD
2 stops16h 00mKLM
Sun 22/1217:20ORD - BHD
2 stops17h 30mKLM
Deal found 17/12£2,257

Find flights from Northern Ireland to Illinois within your budget

Customise 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 858,174 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 16/1

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Thu 23/1

18:30-20:40

2 stops20h 10m

£461

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 30/1

07:30-17:20

2 stops15h 50m

Chicago O'Hare Intl

Thu 6/2

18:30-19:35

2 stops19h 05m

£473

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 30/1

17:20-14:30

1 stop27h 10m

Chicago O'Hare Intl

Thu 6/2

16:58-16:50

2 stops17h 52m

£572

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 20/1

14:40-19:20

2 stops34h 40m

Chicago O'Hare Intl

Mon 27/1

21:45-18:35

1 stop14h 50m

£572

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 20/1

06:30-20:53

2 stops20h 23m

Chicago O'Hare Intl

Mon 27/1

12:15-16:50

2 stops22h 35m

£588

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

10:10-19:05

2 stops14h 55m

£528

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

09:30-19:05

2 stops15h 35m

£606

Flights are sorted by cheapest return flights first.

Deals found on 16/12

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 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 Northern Ireland to Illinois

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 23.0 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 Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 18 December 2024.
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,604 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus
7.1
Good
1,073 reviews
Delta
8.0
Very Good
8,604 reviews
Check prices

Food

7.3

Comfort

7.9

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 holiday 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.

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

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Illinois (average of £595). Flying from Northern Ireland to Illinois in July is currently the most expensive (average of £843). 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 Northern Ireland to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Certainly. Search results for flights to Illinois from Northern Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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