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Cheap flights from Belfast City Airport to Illinois from £345

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
24 May — 31 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast City to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Belfast City to Illinois
Explore the most affordable flight options available from Belfast City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2026.

Sun 27/915:50
BHD
-
ORD
1 stop26h 40m
British Airways
Thu 1/1022:35
ORD
-
BHD
1 stop10h 55m
British Airways
Deal found 21/4£712
Thu 1/1006:30
BHD
-
ORD
1 stop14h 30m
British Airways
Mon 5/1022:35
ORD
-
BHD
1 stop14h 10m
British Airways
Deal found 23/4£714
Sun 27/919:10
BHD
-
ORD
2 stops26h 50m
Multiple Airlines
Thu 1/1019:05
ORD
-
BHD
1 stop14h 25m
Multiple Airlines
Deal found 21/4£737
Sun 17/515:50
BHD
-
ORD
1 stop28h 00m
British Airways
Sun 24/517:00
ORD
-
BHD
1 stop11h 30m
British Airways
Deal found 23/4£908
Sun 17/520:10
BHD
-
ORD
2 stops29h 12m
Multiple Airlines
Sun 24/518:48
ORD
-
BHD
2 stops36h 07m
Multiple Airlines
Deal found 20/4£925
Sat 19/1207:25
BHD
-
ORD
3 stops38h 05m
Multiple Airlines
Fri 1/112:00
ORD
-
BHD
2 stops19h 15m
Multiple Airlines
Deal found 21/4£934

Find flight deals from Belfast City to Illinois

Keep the following information in mind while searching for Belfast City to Illinois flight deals. Data was last updated 24 April 2026.

Round-trip from

£712

One-way from

£345
British Airways
  • British Airways
  • 27/9-1/10
  • 2 total stops
  • 37h 35m total
  • Belfast to Illinois
Search Deals
21/10
  • 21/10
  • 3 total stops
  • 35h 30m total
  • Belfast to Illinois
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast City 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 24 April 2026.
Use the filters below to find and compare flights from Belfast City Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/10

06:30-15:00

1 stop14h 30m

Chicago O'Hare Intl

Mon 5/10

22:35-18:45

1 stop14h 10m

£714

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 27/9

19:10-16:00

2 stops26h 50m

Chicago O'Hare Intl

Thu 1/10

19:05-15:30

1 stop14h 25m

£737

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 27/9

20:10-16:50

2 stops26h 40m

Chicago O'Hare Intl

Thu 1/10

14:55-19:25

2 stops22h 30m

£822

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 17/5

15:50-13:50

1 stop28h 00m

Chicago O'Hare Intl

Sun 24/5

17:00-10:30

1 stop11h 30m

£908

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 17/5

20:10-19:22

2 stops29h 12m

Chicago O'Hare Intl

Sun 24/5

18:48-12:55

2 stops36h 07m

£925
Cheapest one-way

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 21/10

12:45-18:15

3 stops35h 30m

£345

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 26/7

17:45-15:10

3 stops51h 25m

£498

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 21/10

06:30-13:50

1 stop13h 20m

£530

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 29/4

12:45-11:42

2 stops52h 57m

£549

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 26/7

15:50-18:15

1 stop32h 25m

£718

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Belfast City to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Belfast City 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 City Airport 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 24 April 2026.
See what other customers who have flown with British Airways from Belfast City Airport to Illinois have to say. 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.
British Airways
6.7
Okay
7,910 reviews
Check prices

Comfort

6.8

Boarding

6.9

Crew

7.7

Food

6.4

Entertainment

6.4

Overall

6.7

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
7,910 reviews
British Airways
6.7
Okay
7,910 reviews
Check prices

Comfort

6.8

Boarding

6.9

Crew

7.7

Food

6.4

Entertainment

6.4

Overall

6.7

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 City 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 City Airport to Illinois?

    For as low as £714, British Airways can have you in Illinois from Belfast City Airport in 14h 30m. The distance from Belfast City Airport to Illinois is about 3644 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast City 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 City to Illinois

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Top airline flying from Belfast City to Illinois

Discover the top airline that operate flights from Belfast City 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 24 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£497Average£650FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast City 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 City to Illinois?

Cheapflights simply makes it quick and affordable to book flights from Belfast City to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast City to Illinois, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Belfast City to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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