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Cheap flights from Illinois to Belfast City Airport from £411

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
26 Feb — 5 Mar1
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 21 February 2025.

Round-trip from

£516

One-way from

£411

Popular in

May

Cheapest in

December
British Airways
  • British Airways
  • 6/4-13/4
  • 2 total stops
  • 24h 50m total
  • Illinois to Belfast
Search Deals
25/7
  • 25/7
  • 2 total stops
  • 41h 10m total
  • Illinois to Belfast
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£176 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£35 potential savings vs. average return price).
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 21 February 2025.

Sun 6/419:15ORD - BHD
1 stop11h 50mBritish Airways
Sun 13/406:50BHD - ORD
1 stop13h 00mBritish Airways
Deal found 20/2£516
Sun 6/418:15ORD - BHD
2 stops16h 40mKLM
Sun 13/417:25BHD - ORD
1 stop26h 45mKLM
Deal found 20/2£533
Wed 17/918:24STL - BHD
2 stops13h 06mBritish Airways
Wed 1/1010:00BHD - STL
2 stops15h 54mBritish Airways
Deal found 20/2£567
Mon 7/418:42MDW - BHD
2 stops16h 13mDelta
Mon 14/406:30BHD - MDW
2 stops17h 50mDelta
Deal found 21/2£585
Mon 7/411:30ORD - BHD
3 stops27h 20mMultiple Airlines
Mon 14/418:00BHD - ORD
2 stops27h 55mMultiple Airlines
Deal found 21/2£689
Wed 9/722:35ORD - BHD
1 stop14h 05mAmerican Airlines
Wed 23/706:50BHD - ORD
2 stops14h 55mAmerican Airlines
Deal found 20/2£741
Sat 22/321:15ORD - BHD
1 stop14h 25mFinnair
Thu 27/306:35BHD - ORD
1 stop16h 05mFinnair
Deal found 20/2£1,039
Tue 15/709:15STL - BHD
2 stops21h 25mMultiple Airlines
Mon 21/707:00BHD - STL
3 stops21h 45mMultiple Airlines
Deal found 20/2£1,237
Sat 31/506:00STL - BHD
3 stops26h 30mAer Lingus
Thu 5/617:55BHD - STL
3 stops31h 51mAer Lingus
Deal found 20/2£1,453
Sun 23/318:42MDW - BHD
2 stops17h 08mKLM
Fri 28/306:30BHD - MDW
2 stops16h 32mKLM
Deal found 19/2£3,317

Find flights from Illinois to Belfast City within your budget

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 21 February 2025.

Fly from

Illinois

Fly to

Belfast City

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 6/4

19:15-13:05

1 stop11h 50m

Belfast City

Sun 13/4

06:50-13:50

1 stop13h 00m

£516

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 6/4

18:15-16:55

2 stops16h 40m

Belfast City

Sun 13/4

17:25-14:10

1 stop26h 45m

£533

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Mon 7/4

18:42-16:55

2 stops16h 13m

Belfast City

Mon 14/4

06:30-18:20

2 stops17h 50m

£585

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 17/3

18:29-16:15

2 stops16h 46m

Belfast City

Fri 21/3

08:40-20:41

2 stops17h 01m

£619

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 7/4

11:30-20:50

3 stops27h 20m

Belfast City

Mon 14/4

18:00-15:55

2 stops27h 55m

£689

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 9/7

22:35-18:40

1 stop14h 05m

Belfast City

Wed 23/7

06:50-15:45

2 stops14h 55m

£741

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 22/3

21:15-16:40

1 stop14h 25m

Belfast City

Thu 27/3

06:35-17:40

1 stop16h 05m

£1,039

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Tue 15/7

09:15-12:40

2 stops21h 25m

Belfast City

Mon 21/7

07:00-22:45

3 stops21h 45m

£1,237

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sat 31/5

06:00-14:30

3 stops26h 30m

Belfast City

Thu 5/6

17:55-19:46

3 stops31h 51m

£1,453

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 23/3

18:42-16:50

2 stops17h 08m

Belfast City

Fri 28/3

06:30-18:02

2 stops16h 32m

£3,317

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 15 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.

Travel insights for flights from Illinois to Belfast City

Get recent, data-driven insights about flights from Illinois to Belfast City including ideal travel times, pricing trends, and more.

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 21 February 2025.
See what other customers who have flown with Delta, KLM and Finnair 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
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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.

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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
1,273 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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.

Aer Lingus
7.0
Good
1,070 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

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 £417. Aer Lingus flights start at £424 while deals on Delta start at £452 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 Lambert-St Louis - Belfast City. You may also consider Chicago O'Hare Intl - 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.

  • 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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