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Cheap flights from Belfast to Illinois from £500

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Illinois

Enter your travel dates to find the best prices.

Best flights from Belfast to Illinois
Discover carefully curated flight deals from Belfast to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Mon 19/122:20BFS - ORD
3 stops46h 40mMultiple Airlines
Mon 26/118:30ORD - BFS
2 stops18h 35mMultiple Airlines
Deal found 11/12£500
Mon 19/106:35BHD - ORD
1 stop14h 50mAmerican Airlines
Mon 26/121:45ORD - BHD
1 stop12h 20mAmerican Airlines
Deal found 11/12£590
Mon 19/117:20BHD - ORD
2 stops29h 37mDelta
Mon 26/116:25ORD - BHD
1 stop18h 25mDelta
Deal found 11/12£600
Thu 29/111:05BHD - ORD
1 stop11h 55mBritish Airways
Mon 2/217:10ORD - BHD
1 stop15h 05mBritish Airways
Deal found 9/12£622
Sat 24/108:10BFS - ORD
2 stops15h 10mMultiple Airlines
Sat 31/118:30ORD - BFS
2 stops19h 45mMultiple Airlines
Deal found 10/12£563
Sun 25/122:45BFS - ORD
3 stops26h 30mMultiple Airlines
Sun 1/216:38ORD - BFS
3 stops21h 32mMultiple Airlines
Deal found 10/12£587
Wed 7/119:25BHD - ORD
2 stops30h 45mBritish Airways
Wed 14/114:14ORD - BHD
2 stops18h 01mBritish Airways
Deal found 10/12£659
Wed 7/107:55BFS - ORD
2 stops17h 07mMultiple Airlines
Wed 14/118:30ORD - BFS
2 stops15h 40mMultiple Airlines
Deal found 10/12£662
Wed 7/117:20BHD - ORD
3 stops30h 00mMultiple Airlines
Wed 14/118:30ORD - BHD
2 stops16h 50mMultiple Airlines
Deal found 10/12£786

Find flight deals from Belfast to Illinois

Keep the following information in mind while searching for Belfast to Illinois flight deals. Data was last updated 12 December 2025.

Round-trip from

£500
19/1-26/1
  • 19/1-26/1
  • 5 total stops
  • 65h 15m total
  • Belfast to Illinois
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 12 December 2025.
Use the filters below to find and compare flights from Belfast to Illinois that are best for you.

Fly from

Belfast

Fly to

Illinois

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 19/1

22:20-15:00

3 stops46h 40m

Chicago O'Hare Intl

Mon 26/1

18:30-19:05

2 stops18h 35m

£500

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 24/1

08:10-17:20

2 stops15h 10m

Chicago O'Hare Intl

Sat 31/1

18:30-20:15

2 stops19h 45m

£563

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 25/1

22:45-19:15

3 stops26h 30m

Chicago O'Hare Intl

Sun 1/2

16:38-20:10

3 stops21h 32m

£587

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 19/1

06:35-15:25

1 stop14h 50m

Chicago O'Hare Intl

Mon 26/1

21:45-16:05

1 stop12h 20m

£590

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 19/1

17:20-16:57

2 stops29h 37m

Chicago O'Hare Intl

Mon 26/1

16:25-16:50

1 stop18h 25m

£600

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

11:05-17:00

1 stop11h 55m

Chicago O'Hare Intl

Mon 2/2

17:10-14:15

1 stop15h 05m

£622

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 7/1

19:25-20:10

2 stops30h 45m

Chicago O'Hare Intl

Wed 14/1

14:14-14:15

2 stops18h 01m

£659

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 7/1

07:55-19:02

2 stops17h 07m

Chicago O'Hare Intl

Wed 14/1

18:30-16:10

2 stops15h 40m

£662

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 7/1

17:20-17:20

3 stops30h 00m

Chicago O'Hare Intl

Wed 14/1

18:30-17:20

2 stops16h 50m

£786

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Best time to book a flight from Belfast to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Belfast 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Illinois
No data available for this route at this time. Please check back soon.

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 12 December 2025.
Read reviews from past customers who have flown with British Airways from Belfast to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,571 reviews
Check prices

Boarding

6.9

Overall

6.7

Comfort

6.7

Crew

7.6

Food

6.4

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,571 reviews
British Airways
6.7
Okay
7,571 reviews
Check prices

Boarding

6.9

Overall

6.7

Comfort

6.7

Crew

7.6

Food

6.4

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Related info for your journey

Find useful and relevant information for your journey from Belfast 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 Belfast to Illinois?

    Airlines like American Airlines, Delta, and British Airways fly from Belfast to Illinois in about 11h 55m. The time it takes to get you to your destination can typically vary by up to 17h 42m. The distance from Belfast to Illinois is about 3644 mi. This flight may include one or multiple stops.

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

    Yes. In addition to deals on Belfast to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Belfast 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 Belfast to Illinois

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Top airline flying from Belfast to Illinois

Discover the top airline that operate flights from Belfast to Illinois. 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 858,174 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£485Average£616FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Illinois for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Illinois from Belfast? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from Belfast today and book when prices fit your budget.

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