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Cheap flights from Illinois to Belfast City Airport from £260

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
10 Apr — 17 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 11 March 2026.

Mon 20/419:05
ORD
-
BHD
1 stop14h 25m
British Airways
Tue 28/409:40
BHD
-
ORD
1 stop14h 35m
British Airways
Deal found 9/3£536
Mon 11/516:50
ORD
-
BHD
1 stop10h 30m
Virgin Atlantic
Mon 18/517:30
BHD
-
ORD
1 stop26h 45m
Virgin Atlantic
Deal found 8/3£558
Wed 29/416:50
ORD
-
BHD
1 stop18h 05m
Multiple Airlines
Mon 4/517:30
BHD
-
ORD
1 stop26h 45m
Multiple Airlines
Deal found 7/3£565
Mon 9/321:35
ORD
-
BHD
1 stop11h 40m
American Airlines
Mon 16/309:15
BHD
-
ORD
1 stop12h 10m
American Airlines
Deal found 8/3£574
Mon 11/517:37
ORD
-
BHD
2 stops13h 18m
British Airways
Mon 18/518:30
BHD
-
ORD
1 stop25h 20m
British Airways
Deal found 8/3£576
Thu 23/421:15
ORD
-
BHD
1 stop16h 10m
British Airways
Thu 30/406:30
BHD
-
ORD
1 stop13h 20m
British Airways
Deal found 9/3£580
Tue 1/918:15
ORD
-
BHD
1 stop15h 05m
American Airlines
Thu 10/909:35
BHD
-
ORD
1 stop14h 00m
American Airlines
Deal found 11/3£580
Fri 21/816:16
ORD
-
BHD
2 stops17h 14m
British Airways
Fri 28/806:30
BHD
-
ORD
1 stop15h 25m
British Airways
Deal found 9/3£585
Mon 6/409:37
STL
-
BHD
2 stops21h 18m
British Airways
Mon 13/419:35
BHD
-
STL
2 stops27h 06m
British Airways
Deal found 9/3£599
Mon 11/519:13
MDW
-
BHD
2 stops15h 42m
KLM
Mon 18/509:50
BHD
-
MDW
2 stops14h 43m
KLM
Deal found 8/3£673
Wed 18/1114:50
STL
-
BHD
2 stops19h 45m
British Airways
Sun 22/1109:10
BHD
-
STL
2 stops17h 45m
British Airways
Deal found 9/3£760
Thu 23/417:21
MDW
-
BHD
2 stops17h 34m
Delta
Wed 29/409:50
BHD
-
MDW
2 stops18h 38m
Delta
Deal found 7/3£917

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 11 March 2026.

Round-trip from

£536

One-way from

£260
British Airways
  • British Airways
  • 20/4-28/4
  • 2 total stops
  • 29h 00m total
  • Illinois to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 1/9
  • 2 total stops
  • 16h 05m 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 11 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
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 20/4

16:36-12:55

2 stops14h 19m

Belfast City

Tue 28/4

09:40-15:55

1 stop12h 15m

£548

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 11/5

16:50-09:20

1 stop10h 30m

Belfast City

Mon 18/5

17:30-14:15

1 stop26h 45m

£558

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 6/4

09:37-12:55

2 stops21h 18m

Belfast City

Mon 13/4

19:35-16:41

2 stops27h 06m

£599

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 1/5

21:15-18:10

1 stop14h 55m

Belfast City

Tue 5/5

20:25-15:55

1 stop25h 30m

£627

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 23/4

06:50-09:20

2 stops20h 30m

Belfast City

Thu 30/4

09:50-23:59

2 stops20h 09m

£649

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 4/4

17:00-12:25

1 stop13h 25m

Belfast City

Sat 11/4

07:05-21:35

2 stops20h 30m

£654

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 17/4

16:19-15:30

2 stops17h 11m

Belfast City

Sat 25/4

09:35-21:35

2 stops18h 00m

£667

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 15/7

17:00-12:00

1 stop13h 00m

Belfast City

Thu 13/8

09:35-23:22

2 stops19h 47m

£668

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Mon 11/5

19:13-16:55

2 stops15h 42m

Belfast City

Mon 18/5

09:50-18:33

2 stops14h 43m

£673

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 30/7

20:45-20:20

1 stop17h 35m

Belfast City

Thu 13/8

06:30-18:15

1 stop17h 45m

£714

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 26 resultsSorted by cheapest first
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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 10h 30m. British Airways provides one of the quickest options available for as low as £558. 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 O'Hare Intl - Belfast City. You may also consider Chicago Midway - 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?

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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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