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Cheap flights from Illinois to Belfast City Airport from £242

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
7 Apr — 14 Apr1
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 2 April 2025.

Round-trip from

£481

One-way from

£242

Popular in

May

Cheapest in

December

Average price

£675
23/9-7/10
  • 23/9-7/10
  • 2 total stops
  • 25h 05m total
  • Illinois to Belfast
Search Deals
8/7
  • 8/7
  • 2 total stops
  • 43h 22m total
  • Illinois to Belfast
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 2 April 2025.

Tue 23/917:45ORD - BHD
1 stop10h 50mMultiple Airlines
Tue 7/1006:35BHD - ORD
1 stop14h 15mMultiple Airlines
Deal found 1/4£481
Tue 23/917:45ORD - BHD
1 stop10h 50mFinnair
Tue 7/1016:25BHD - ORD
2 stops33h 09mFinnair
Deal found 1/4£490
Tue 23/912:46ORD - BHD
2 stops15h 49mBritish Airways
Tue 7/1009:35BHD - ORD
2 stops16h 00mBritish Airways
Deal found 1/4£496
Tue 23/917:45ORD - BHD
1 stop10h 50mAmerican Airlines
Tue 7/1009:35BHD - ORD
2 stops16h 00mAmerican Airlines
Deal found 1/4£516
Fri 16/517:15ORD - BHD
2 stops22h 00mDelta
Fri 23/506:30BHD - ORD
2 stops19h 51mDelta
Deal found 1/4£752
Fri 16/518:38MDW - BHD
2 stops20h 37mDelta
Fri 23/506:30BHD - MDW
2 stops18h 15mDelta
Deal found 1/4£752
Mon 14/707:23STL - BHD
2 stops23h 32mBritish Airways
Mon 21/719:30BHD - STL
2 stops29h 38mBritish Airways
Deal found 1/4£805
Tue 15/712:27STL - BHD
2 stops16h 08mMultiple Airlines
Mon 21/709:50BHD - STL
3 stops19h 59mMultiple Airlines
Deal found 1/4£1,630
Fri 11/421:15ORD - BHD
1 stop12h 15mIberia
Fri 18/406:35BHD - ORD
1 stop17h 40mIberia
Deal found 2/4£2,635

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 2 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

Tue 23/9

17:45-10:35

1 stop10h 50m

Belfast City

Tue 7/10

06:35-14:50

1 stop14h 15m

£481

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 23/9

17:45-10:35

1 stop10h 50m

Belfast City

Tue 7/10

16:25-19:34

2 stops33h 09m

£490

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 23/9

12:46-10:35

2 stops15h 49m

Belfast City

Tue 7/10

09:35-19:35

2 stops16h 00m

£496

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 23/9

17:45-10:35

1 stop10h 50m

Belfast City

Tue 7/10

09:35-19:35

2 stops16h 00m

£516

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 16/5

17:15-21:15

2 stops22h 00m

Belfast City

Fri 23/5

06:30-20:21

2 stops19h 51m

£752

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 16/5

18:38-21:15

2 stops20h 37m

Belfast City

Fri 23/5

06:30-18:45

2 stops18h 15m

£752

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 14/7

07:23-12:55

2 stops23h 32m

Belfast City

Mon 21/7

19:30-19:08

2 stops29h 38m

£805

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Tue 15/7

12:27-10:35

2 stops16h 08m

Belfast City

Mon 21/7

09:50-23:49

3 stops19h 59m

£1,630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 8/7

13:43-15:05

2 stops43h 22m

£242

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 5/6

20:41-20:10

3 stops41h 29m

£303

Flights are sorted by cheapest return flights first.

Deals found on 2/4

Showing 1-10 of 13 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 2 April 2025.
See what other customers who have flown with Delta, Finnair 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.
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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.
Delta
8.0
Very Good
7,897 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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.
British Airways
6.6
Okay
6,715 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

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 cheapest airlines to fly from Illinois to Belfast City Airport one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £353. Delta flights start at £385 while deals on American Airlines start at £541 one-way.

  • 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.

  • 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?

Book flights to Illinois if you plan to visit one of these locations
Newcastle
Carrickfergus
Bangor

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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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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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