How long is the flight from Illinois to Belfast City Airport?

A quick flight from Illinois to Belfast City Airport can take about 11h 45m. KLM provides one of the quickest options available for as low as £701. 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.

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.

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).

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.

What is the cheapest time of day to fly from IL to BHD?

When flying from Illinois to Belfast City Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£239+ Cheap Flights from Illinois to Belfast City Airport

Cheap flight deals from Illinois to Belfast City

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 12 September 2026.

Sun 20/916:15 -

1 stop11h 05m

Mon 5/1017:30 -

1 stop26h 45m

Deal found 9/9£576

Sun 20/916:15 -

1 stop18h 40m

Mon 5/1017:30 -

1 stop26h 45m

Deal found 9/9£592

Thu 5/1116:25 -

1 stop18h 10m

Sat 14/1117:15 -

1 stop27h 10m

Deal found 9/9£665

Mon 28/919:05 -

1 stop14h 25m

Fri 9/1011:00 -

2 stops16h 05m

Deal found 9/9£666

Thu 26/1116:25 -

1 stop18h 10m

Tue 1/1217:20 -

1 stop27h 05m

Deal found 10/9£667

Thu 26/1113:35 -

2 stops21h 00m

Tue 1/1217:20 -

1 stop27h 05m

Deal found 10/9£671

Thu 5/1116:25 -

1 stop18h 10m

Sat 14/1109:40 -

2 stops20h 14m

Deal found 9/9£672

Mon 28/915:50 -

2 stops15h 05m

Fri 9/1011:00 -

2 stops16h 45m

Deal found 9/9£678

Fri 27/1118:30 -

2 stops20h 35m

Tue 1/1207:20 -

2 stops18h 38m

Deal found 10/9£678

Thu 19/1116:25 -

1 stop18h 10m

Tue 24/1117:15 -

1 stop27h 10m

Deal found 11/9£680

Sun 20/909:29 -

2 stops17h 51m

Mon 5/1009:50 -

2 stops18h 54m

Deal found 9/9£746

Thu 26/1112:05 -

2 stops15h 05m

Tue 1/1209:40 -

2 stops19h 15m

Deal found 10/9£891

Best flights from Illinois to Belfast City
Discover carefully curated flight deals from Illinois to Belfast City that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Sun 31/113:00 -

2 stops14h 10m

Mon 8/209:40 -

2 stops18h 30m

Deal found 10/9£645

Fri 27/1118:30 -

2 stops20h 35m

Tue 1/1207:20 -

2 stops18h 38m

Deal found 10/9£678

Thu 19/1116:25 -

1 stop18h 10m

Tue 24/1117:15 -

1 stop27h 10m

Deal found 11/9£680

Fri 22/117:10 -

1 stop11h 45m

Thu 28/106:30 -

1 stop13h 15m

Deal found 11/9£701

Sat 23/109:30 -

2 stops17h 40m

Fri 29/117:20 -

2 stops30h 14m

Deal found 11/9£683

Fri 26/217:10 -

1 stop11h 45m

Sun 7/306:30 -

1 stop18h 15m

Deal found 7/9£720

Mon 28/910:48 -

2 stops16h 32m

Fri 9/1009:50 -

2 stops18h 43m

Deal found 9/9£1,505

Tue 1/1218:30 -

2 stops20h 00m

Sat 5/1207:25 -

2 stops18h 33m

Deal found 11/9£762

Fri 27/1117:10 -

1 stop14h 55m

Tue 1/1211:40 -

1 stop13h 05m

Deal found 10/9£726

Fri 25/916:30 -

2 stops19h 40m

Mon 28/919:35 -

1 stop26h 20m

Deal found 9/9£782

Thu 26/1112:05 -

2 stops15h 05m

Tue 1/1209:40 -

2 stops19h 15m

Deal found 10/9£891

Mon 28/911:15 -

3 stops20h 35m

Fri 9/1007:00 -

3 stops21h 06m

Deal found 9/9£1,009

Mon 16/1113:15 -

2 stops15h 35m

Wed 18/1117:35 -

2 stops32h 58m

Deal found 7/9£1,096

Sun 15/1117:10 -

1 stop11h 35m

Wed 18/1117:35 -

1 stop26h 10m

Deal found 7/9£1,099

Sun 11/1017:00 -

1 stop11h 30m

Wed 14/1006:30 -

1 stop15h 25m

Deal found 10/9£1,099

Fri 25/919:01 -

2 stops15h 54m

Mon 28/909:50 -

2 stops18h 54m

Deal found 9/9£1,724

Find flight deals from Illinois to Belfast City

Round-trip from	£642
One-way from	£239

KLM
31/1-8/2
3 total stops
38h 35m total
Illinois to Belfast

Search Deals

British Airways
31/1-31/12
1 total stop
11h 35m total
Illinois to Belfast

Search Deals

Cheapflights Fare Finder

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

Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 31/1

17:10-10:45

1 stop11h 35m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£239

ChicagoBelfast

MDW Chicago Midway - BHD Belfast City

MDWBHD

Chicago Midway

Sun 31/1

12:30-09:10

2 stops14h 40m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£258

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 27/9

22:25-16:50

2 stops36h 25m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£263

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 30/1

21:36-10:45

2 stops31h 09m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£270

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Fri 29/1

16:29-14:05

2 stops15h 36m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£273

ChicagoBelfast

MDW Chicago Midway - BHD Belfast City

MDWBHD

Chicago Midway

Sun 27/9

06:25-07:35

3 stops43h 10m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£292

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Fri 29/1

18:30-20:30

3 stops20h 00m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£297

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 30/1

18:30-18:55

3 stops18h 25m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£314

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 31/1

21:50-09:20

3 stops29h 30m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£351

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 27/9

19:05-14:35

1 stop13h 30m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£443

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 26 resultsSorted by cheapest first

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.

MDW-BHD

ORD-BHD

STL-BHD

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

USIL-BHD

MDW-BHD

ORD-BHD

STL-BHD

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Illinois to Belfast City Airport?
A quick flight from Illinois to Belfast City Airport can take about 11h 45m. KLM provides one of the quickest options available for as low as £701. 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.

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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?

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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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Cheap flights from Illinois to Belfast City Airport from £239

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Belfast City

Cheapest flights from Illinois to Belfast CityExplore 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 12 September 2026.

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 12 September 2026.

Best flights from Illinois to Belfast CityDiscover carefully curated flight deals from Illinois to Belfast City that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Discover carefully curated flight deals from Illinois to Belfast City that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Last-minute flights from Illinois to Belfast CityDiscover last-minute flight deals from Illinois to Belfast City. Data last updated 12 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Belfast City. Data last updated 12 September 2026 and is based on user searches.

One-way flights from Illinois to Belfast CitySearch for one-way flight options from Illinois to Belfast City. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Search for one-way flight options from Illinois to Belfast City. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

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Best time to book a flight from Illinois to Belfast City

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Related info for your journey

How long is the flight from Illinois to Belfast City Airport?

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?

How can I find direct flights from Illinois to Belfast City?

Can I find deals for business class flights from Illinois to Belfast City?

Travelling to a place near Belfast City Airport?

Browse thousands of different options on Cheapflights for your next trip

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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.

Other flights to Belfast City

Explore flights to Belfast City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 September 2026.

Complete your trip

Complete your trip to Belfast City by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Northern Ireland

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Search flights from Illinois to Belfast City by cabin class

Find flights from Illinois to Belfast City, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Belfast City flights

Browse other Illinois and Belfast City flight options. Last updated on 12 September 2026.

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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 12 September 2026.

Best flights from Illinois to Belfast City
Discover carefully curated flight deals from Illinois to Belfast City that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Last-minute flights from Illinois to Belfast City
Discover last-minute flight deals from Illinois to Belfast City. Data last updated 12 September 2026 and is based on user searches.

One-way flights from Illinois to Belfast City
Search for one-way flight options from Illinois to Belfast City. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.