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Cheap flights from Illinois to Belfast City Airport from £246

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
28 Apr — 5 May1
1 adult

Cheap 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 April 2025.

Round-trip from

£536

One-way from

£246

Popular in

May

Cheapest in

September

Average price

£1,003
British Airways
  • British Airways
  • 13/8-24/8
  • 2 total stops
  • 27h 20m total
  • Illinois to Belfast
17/8
  • 17/8
  • 2 total stops
  • 32h 50m total
  • Illinois to Belfast
Highest demand for flights based on searches. 26% potential increase in price (£189 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from Illinois to Belfast City

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 April 2025.

Mon 28/417:45ORD - BHD
1 stop13h 10mAmerican Airlines
Tue 13/506:35BHD - ORD
1 stop14h 05mAmerican Airlines
Deal found 23/4£505
Sun 27/418:15ORD - BHD
2 stops16h 40mKLM
Tue 13/517:25BHD - ORD
1 stop27h 15mKLM
Deal found 22/4£533
Wed 13/819:15ORD - BHD
1 stop14h 20mBritish Airways
Sun 24/806:50BHD - ORD
1 stop13h 00mBritish Airways
Deal found 22/4£536
Sat 13/920:01STL - BHD
2 stops33h 29mBritish Airways
Tue 16/1217:10BHD - STL
2 stops28h 57mBritish Airways
Deal found 22/4£560
Mon 5/519:25ORD - BHD
2 stops19h 25mMultiple Airlines
Thu 8/520:15BHD - ORD
2 stops33h 14mMultiple Airlines
Deal found 23/4£630
Sun 27/716:20ORD - BHD
1 stop22h 55mDelta
Mon 4/817:25BHD - ORD
1 stop26h 45mDelta
Deal found 22/4£691
Mon 28/713:05MDW - BHD
2 stops26h 10mDelta
Mon 4/806:30BHD - MDW
2 stops38h 26mDelta
Deal found 22/4£702
Tue 3/605:20STL - BHD
3 stops30h 20mMultiple Airlines
Tue 10/607:05BHD - STL
3 stops35h 31mMultiple Airlines
Deal found 22/4£854
Mon 11/814:39STL - BHD
3 stops19h 46mAer Lingus
Sun 17/810:20BHD - STL
3 stops19h 29mAer Lingus
Deal found 22/4£947
Sun 27/721:15ORD - BHD
2 stops15h 30mAer Lingus
Fri 1/810:10BHD - ORD
2 stops14h 50mAer Lingus
Deal found 22/4£1,010
Fri 6/618:31MDW - BHD
2 stops16h 24mKLM
Fri 13/606:30BHD - MDW
2 stops17h 10mKLM
Deal found 22/4£1,123
Tue 22/420:20ORD - BHD
1 stop13h 00mIberia
Tue 29/416:25BHD - ORD
1 stop25h 20mIberia
Deal found 21/4£5,584

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 April 2025.
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

Wed 13/8

19:15-15:35

1 stop14h 20m

Belfast City

Sun 24/8

06:50-13:50

1 stop13h 00m

£536

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 13/8

21:15-15:35

1 stop12h 20m

Belfast City

Sun 24/8

11:00-18:15

1 stop13h 15m

£537

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sat 13/9

20:01-11:30

2 stops33h 29m

Belfast City

Tue 16/12

17:10-16:07

2 stops28h 57m

£560

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/5

19:25-20:50

2 stops19h 25m

Belfast City

Thu 8/5

20:15-23:29

2 stops33h 14m

£630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 27/7

16:20-21:15

1 stop22h 55m

Belfast City

Mon 4/8

17:25-14:10

1 stop26h 45m

£691

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Mon 28/7

13:05-21:15

2 stops26h 10m

Belfast City

Mon 4/8

06:30-14:56

2 stops38h 26m

£702

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Tue 3/6

05:20-17:40

3 stops30h 20m

Belfast City

Tue 10/6

07:05-12:36

3 stops35h 31m

£854

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 11/8

14:39-16:25

3 stops19h 46m

Belfast City

Sun 17/8

10:20-23:49

3 stops19h 29m

£947

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 27/7

21:15-18:45

2 stops15h 30m

Belfast City

Fri 1/8

10:10-19:00

2 stops14h 50m

£1,010

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 28/7

17:45-16:55

2 stops17h 10m

Belfast City

Fri 1/8

06:30-14:10

1 stop13h 40m

£1,049

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 14 results
1
2

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

Rainfall in Belfast City by month

Plan your trip to Belfast City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast City Airport ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast City Airport when rainfall is around 50.0 mm.

Temperature in Belfast City by month

Plan your trip to Belfast City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast City Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Belfast City

Get insights into the airlines that provide service to Belfast City. 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 Belfast City. Reviews last updated 23 April 2025.
See what other customers who have flown with Delta, KLM and American Airlines from Illinois to Belfast have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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

  • 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.

  • What is the cheapest month to book a flight from Illinois to Belfast City Airport?

    Currently, April is the cheapest month in which you can book a flight from Illinois to Belfast City Airport (average of £98). Flying from Illinois to Belfast City Airport in December is currently the most expensive (average of £116). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Illinois?

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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.

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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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