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Cheap flights from Illinois to Belfast City Airport from £250

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
27 2월 — 6 3월1
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 28 1월 2026.

일 11/1017:00
ORD
-
BHD
1 stop11h 30m
British Airways
월 19/1018:30
BHD
-
ORD
1 stop27h 25m
British Airways
Deal found 27/1£485
일 11/1016:20
ORD
-
BHD
1 stop11h 00m
Delta
수 21/1017:30
BHD
-
ORD
2 stops29h 03m
Delta
Deal found 27/1£506
금 20/217:10
ORD
-
BHD
1 stop11h 20m
British Airways
금 27/206:45
BHD
-
ORD
1 stop18h 00m
British Airways
Deal found 27/1£510
수 4/317:10
ORD
-
BHD
1 stop11h 05m
British Airways
일 8/320:25
BHD
-
ORD
1 stop23h 25m
British Airways
Deal found 25/1£514
일 11/1013:43
ORD
-
BHD
2 stops14h 47m
British Airways
일 18/1020:05
BHD
-
ORD
1 stop28h 10m
British Airways
Deal found 27/1£518
일 11/1017:00
ORD
-
BHD
1 stop11h 30m
British Airways
토 17/1019:00
BHD
-
ORD
1 stop29h 15m
British Airways
Deal found 27/1£521
목 16/422:35
ORD
-
BHD
1 stop14h 50m
American Airlines
화 21/409:40
BHD
-
ORD
1 stop13h 55m
American Airlines
Deal found 26/1£524
금 20/213:39
ORD
-
BHD
2 stops14h 51m
American Airlines
금 27/206:45
BHD
-
ORD
2 stops17h 13m
American Airlines
Deal found 27/1£525
일 22/317:25
ORD
-
BHD
1 stop18h 25m
Delta
월 30/309:50
BHD
-
ORD
2 stops18h 26m
Delta
Deal found 27/1£531
금 20/213:26
MDW
-
BHD
2 stops21h 24m
Delta
금 27/206:30
BHD
-
MDW
2 stops18h 10m
Delta
Deal found 27/1£542
화 10/1113:30
STL
-
BHD
2 stops21h 20m
Delta
토 28/1106:30
BHD
-
STL
2 stops22h 33m
Delta
Deal found 26/1£598
수 25/210:37
STL
-
BHD
2 stops17h 38m
British Airways
일 1/320:25
BHD
-
STL
2 stops33h 23m
British Airways
Deal found 26/1£612

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 28 1월 2026.

Round-trip from

£510

One-way from

£250
British Airways
  • British Airways
  • 20/2-27/2
  • 2 total stops
  • 29h 20m total
  • Illinois to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 13/4
  • 2 total stops
  • 14h 10m 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 28 1월 2026.
Use the filters below to find and compare flights from Illinois to Belfast City Airport that are best for you.

Fly from

Illinois

Fly to

Belfast City

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

수 4/3

17:10-10:15

1 stop11h 05m

Belfast City

일 8/3

20:25-14:50

1 stop23h 25m

£514

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

목 16/4

22:35-19:25

1 stop14h 50m

Belfast City

화 21/4

09:40-17:35

1 stop13h 55m

£524

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

금 20/2

13:39-10:30

2 stops14h 51m

Belfast City

금 27/2

06:45-17:58

2 stops17h 13m

£525

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

일 22/3

17:25-16:50

1 stop18h 25m

Belfast City

월 30/3

17:30-14:15

1 stop26h 45m

£538

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

금 20/2

13:26-16:50

2 stops21h 24m

Belfast City

금 27/2

06:30-18:40

2 stops18h 10m

£542

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

일 22/3

17:25-16:50

1 stop18h 25m

Belfast City

일 29/3

17:30-14:30

1 stop27h 00m

£569

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

토 14/3

18:47-10:20

2 stops34h 33m

Belfast City

일 29/3

20:10-13:22

2 stops47h 12m

£586

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

목 16/4

19:05-17:20

2 stops16h 15m

Belfast City

화 21/4

10:20-07:59

2 stops27h 39m

£601

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

수 25/2

10:37-10:15

2 stops17h 38m

Belfast City

일 1/3

10:40-23:48

2 stops19h 08m

£612

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

일 8/3

20:40-14:25

2 stops12h 45m

Belfast City

수 11/3

06:55-18:55

2 stops17h 00m

£662

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 21 results
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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 11h 05m. British Airways provides one of the quickest options available for as low as £514. 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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Alternative routes for Illinois to Belfast City

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

Cheapflights helps you search for flights from Illinois to Belfast City via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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