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Cheap flights from Illinois to Belfast City Airport from £222

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Belfast City

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Belfast City
Explore the most affordable flight options available from Illinois to Belfast City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Wed 16/921:00
ORD
-
BHD
1 stop12h 40m
American Airlines
Wed 23/911:35
BHD
-
ORD
1 stop12h 00m
American Airlines
Deal found 18/3£622
Mon 7/1221:45
ORD
-
BHD
1 stop10h 30m
British Airways
Wed 9/1215:40
BHD
-
ORD
1 stop28h 10m
British Airways
Deal found 18/3£623
Sun 1/1116:25
ORD
-
BHD
1 stop22h 35m
KLM
Wed 4/1106:30
BHD
-
ORD
1 stop14h 00m
KLM
Deal found 21/3£638
Mon 2/1117:10
ORD
-
BHD
1 stop11h 30m
British Airways
Mon 9/1119:25
BHD
-
ORD
1 stop24h 25m
British Airways
Deal found 22/3£640
Wed 16/913:59
ORD
-
BHD
2 stops16h 01m
British Airways
Wed 23/920:35
BHD
-
ORD
2 stops29h 10m
British Airways
Deal found 18/3£643
Sun 2/812:35
ORD
-
BHD
2 stops26h 00m
British Airways
Mon 31/819:35
BHD
-
ORD
2 stops25h 47m
British Airways
Deal found 21/3£652
Sun 1/1121:50
ORD
-
BHD
2 stops16h 25m
British Airways
Wed 4/1119:25
BHD
-
ORD
2 stops27h 25m
British Airways
Deal found 21/3£654
Sun 6/1216:49
STL
-
BHD
2 stops18h 01m
British Airways
Wed 9/1206:35
BHD
-
STL
2 stops23h 23m
British Airways
Deal found 22/3£800
Wed 2/1214:54
STL
-
BHD
2 stops17h 21m
British Airways
Sun 6/1220:25
BHD
-
STL
2 stops33h 33m
British Airways
Deal found 19/3£838
Sun 2/809:49
MDW
-
BHD
2 stops17h 31m
Delta
Mon 31/809:50
BHD
-
MDW
2 stops17h 56m
Delta
Deal found 21/3£838
Tue 28/418:38
MDW
-
BHD
2 stops16h 17m
KLM
Sun 3/509:50
BHD
-
MDW
2 stops18h 38m
KLM
Deal found 19/3£884
Mon 2/1117:25
MDW
-
BHD
2 stops17h 25m
KLM
Mon 9/1106:30
BHD
-
MDW
2 stops15h 55m
KLM
Deal found 22/3£1,905

Find flight deals from Illinois to Belfast City

Keep the following information in mind while searching for Illinois to Belfast City flight deals. Data was last updated 23 March 2026.

Round-trip from

£622

One-way from

£222
American Airlines
  • American Airlines
  • 16/9-23/9
  • 2 total stops
  • 24h 40m total
  • Illinois to Belfast
Search Deals
British Airways
  • British Airways
  • 20/7
  • 2 total stops
  • 13h 35m total
  • Illinois to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Belfast City 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 23 March 2026.
Use the filters below to find and compare flights from Illinois to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 16/9

21:00-15:40

1 stop12h 40m

Belfast City

Wed 23/9

11:35-21:21

2 stops15h 46m

£629

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 2/8

16:20-16:55

1 stop18h 35m

Belfast City

Mon 31/8

17:30-14:15

1 stop26h 45m

£658

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 16/9

22:35-15:40

1 stop11h 05m

Belfast City

Mon 21/9

06:30-17:35

1 stop17h 05m

£659

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 2/8

19:17-16:55

2 stops15h 38m

Belfast City

Mon 31/8

17:30-14:15

1 stop26h 45m

£661
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 28/4

21:15-15:20

1 stop12h 05m

Belfast City

Sun 3/5

06:30-15:55

1 stop15h 25m

£687

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 19/7

20:45-17:40

1 stop14h 55m

Belfast City

Sat 25/7

16:15-12:30

1 stop26h 15m

£808

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 2/8

09:49-09:20

2 stops17h 31m

Belfast City

Mon 31/8

09:50-21:46

2 stops17h 56m

£838

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Tue 28/4

18:38-16:55

2 stops16h 17m

Belfast City

Sun 3/5

09:50-22:28

2 stops18h 38m

£884

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 24/7

18:58-16:55

2 stops15h 57m

Belfast City

Sun 2/8

09:50-22:15

2 stops18h 25m

£2,997
Cheapest one-way

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 20/7

17:20-12:55

2 stops13h 35m

£222

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Best time to book a flight from Illinois to Belfast City

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

Cheapflights Insights

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

Related info for your journey

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

    A quick flight from Illinois to Belfast City Airport can take about 12h 40m. American Airlines provides one of the quickest options available for as low as £629. The distance from Illinois to Belfast City Airport is about 3644 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Illinois to Belfast City Airport?

    The most popular route from Illinois to Belfast City Airport is Chicago Midway - Belfast City. You may also consider Chicago O'Hare Intl - Belfast City or Lambert-St Louis - Belfast City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Belfast City 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

Travelling to a place near Belfast City Airport?

Book flights to Belfast City Airport if you plan to visit one of these locations
Bangor
Carrickfergus
Newcastle

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

Cheapflights simply makes it quick and affordable to book flights from Illinois to Belfast City 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 Illinois to Belfast City with no change fees?

Need flexible booking options for your flight to Belfast City from Illinois? 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 Illinois to Belfast City become cheaper?

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

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