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Cheap flights from Illinois to Belfast City Airport from £238

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
21 Jun — 28 Jun1
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 22 May 2026.

Sun 29/1117:10
ORD
-
BHD
1 stop11h 10m
British Airways
Wed 2/1217:40
BHD
-
ORD
1 stop31h 05m
British Airways
Deal found 19/5£658
Wed 4/1118:45
STL
-
BHD
2 stops15h 50m
American Airlines
Wed 18/1106:35
BHD
-
STL
2 stops17h 02m
American Airlines
Deal found 18/5£678
Fri 18/921:15
ORD
-
BHD
1 stop12h 15m
British Airways
Mon 28/919:35
BHD
-
ORD
1 stop22h 55m
British Airways
Deal found 19/5£690
Thu 8/1017:00
ORD
-
BHD
1 stop11h 10m
British Airways
Mon 12/1018:30
BHD
-
ORD
1 stop27h 25m
British Airways
Deal found 17/5£693
Mon 9/1118:59
STL
-
BHD
2 stops15h 51m
KLM
Mon 23/1117:20
BHD
-
STL
2 stops30h 41m
KLM
Deal found 18/5£694
Fri 18/921:15
ORD
-
BHD
1 stop14h 55m
Multiple Airlines
Mon 28/919:35
BHD
-
ORD
2 stops26h 25m
Multiple Airlines
Deal found 19/5£698
Wed 9/1218:10
ORD
-
BHD
2 stops16h 40m
Virgin Atlantic
Wed 6/117:20
BHD
-
ORD
1 stop27h 05m
Virgin Atlantic
Deal found 17/5£717
Fri 14/821:15
ORD
-
BHD
1 stop12h 15m
British Airways
Tue 18/820:25
BHD
-
ORD
1 stop23h 25m
British Airways
Deal found 19/5£730
Fri 6/1116:13
STL
-
BHD
2 stops18h 37m
KLM
Mon 16/1117:20
BHD
-
STL
2 stops29h 46m
KLM
Deal found 18/5£731
Wed 9/1217:10
ORD
-
BHD
1 stop15h 05m
British Airways
Wed 6/119:25
BHD
-
ORD
1 stop24h 25m
British Airways
Deal found 17/5£745
Sun 9/821:40
STL
-
BHD
1 stop15h 05m
British Airways
Sun 16/806:30
BHD
-
STL
2 stops23h 29m
British Airways
Deal found 18/5£795
Sun 9/811:13
STL
-
BHD
2 stops16h 07m
KLM
Sun 16/817:30
BHD
-
STL
2 stops28h 47m
KLM
Deal found 18/5£796

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 22 May 2026.

Round-trip from

£678

One-way from

£238
American Airlines
  • American Airlines
  • 4/11-18/11
  • 4 total stops
  • 32h 52m total
  • Illinois to Belfast
Search Deals
British Airways
  • British Airways
  • 8/9
  • 1 total stop
  • 11h 45m 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 22 May 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

Thu 8/10

17:00-10:10

1 stop11h 10m

Belfast City

Mon 12/10

18:30-15:55

1 stop27h 25m

£693

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 9/11

18:59-16:50

2 stops15h 51m

Belfast City

Mon 23/11

17:20-18:01

2 stops30h 41m

£694

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 6/11

16:13-16:50

2 stops18h 37m

Belfast City

Mon 16/11

17:20-17:06

2 stops29h 46m

£731

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 14/6

08:50-17:45

2 stops26h 55m

Belfast City

Sun 21/6

07:00-14:55

3 stops37h 55m

£760
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 9/8

21:15-17:40

1 stop14h 25m

Belfast City

Sun 16/8

06:30-18:15

1 stop17h 45m

£782

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 9/8

21:40-18:45

1 stop15h 05m

Belfast City

Sun 16/8

06:30-23:59

2 stops23h 29m

£795

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 9/8

11:13-09:20

2 stops16h 07m

Belfast City

Sun 16/8

17:30-16:17

2 stops28h 47m

£796

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 19/7

21:15-14:35

1 stop11h 20m

Belfast City

Sat 25/7

19:05-12:30

1 stop23h 25m

£818

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 15/11

08:40-10:20

2 stops19h 40m

Belfast City

Thu 19/11

06:35-20:55

2 stops20h 20m

£836

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 17/6

09:54-09:20

2 stops17h 26m

Belfast City

Wed 24/6

09:50-22:17

2 stops18h 27m

£993

Flights are sorted by cheapest return flights first.

Deals found on 21/5

Showing 1-10 of 25 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 11h 10m. British Airways provides one of the quickest options available for as low as £693. 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 Lambert-St Louis - Belfast City or Chicago Midway - 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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