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

A quick flight from Illinois to Belfast City Airport can take about 12h 15m. British Airways provides one of the quickest options available for as low as £657. 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.

£339+ 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 21 August 2026.

Mon 5/1016:50 -

1 stop10h 30m

Mon 12/1008:45 -

2 stops16h 30m

Deal found 21/8£548

Sun 15/1117:10 -

1 stop11h 35m

Thu 19/1107:40 -

1 stop12h 05m

Deal found 17/8£657

Mon 23/1116:25 -

1 stop10h 45m

Wed 2/1217:20 -

1 stop27h 05m

Deal found 17/8£663

Mon 23/1116:25 -

1 stop10h 45m

Thu 3/1209:40 -

2 stops16h 45m

Deal found 17/8£670

Mon 23/1110:30 -

2 stops16h 40m

Fri 27/1109:40 -

2 stops16h 45m

Deal found 17/8£673

Mon 5/1016:50 -

1 stop10h 30m

Mon 12/1017:30 -

1 stop26h 45m

Deal found 21/8£689

Fri 9/1022:25 -

2 stops16h 05m

Tue 20/1007:50 -

3 stops41h 25m

Deal found 18/8£692

Thu 26/1117:10 -

1 stop13h 35m

Thu 3/1207:40 -

1 stop12h 05m

Deal found 17/8£693

Sun 22/1121:50 -

1 stop13h 00m

Thu 3/1208:50 -

1 stop15h 55m

Deal found 17/8£695

Thu 26/1116:25 -

1 stop10h 45m

Wed 2/1217:20 -

1 stop27h 05m

Deal found 17/8£700

Sun 22/1116:25 -

1 stop18h 25m

Wed 2/1217:20 -

1 stop27h 05m

Deal found 17/8£702

Mon 5/1019:01 -

2 stops15h 54m

Mon 12/1009:50 -

2 stops18h 43m

Deal found 21/8£788

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 21 August 2026.

Mon 23/1121:50 -

1 stop12h 15m

Fri 27/1106:45 -

1 stop13h 00m

Deal found 17/8£657

Wed 25/1111:29 -

2 stops15h 41m

Wed 2/1217:20 -

1 stop27h 05m

Deal found 17/8£667

Mon 5/1019:01 -

2 stops15h 54m

Mon 12/1009:50 -

2 stops18h 43m

Deal found 21/8£788

Sun 15/1117:10 -

1 stop11h 35m

Thu 19/1107:40 -

1 stop12h 05m

Deal found 17/8£657

Fri 11/921:35 -

2 stops17h 25m

Fri 25/907:00 -

3 stops37h 00m

Deal found 19/8£1,315

Mon 23/1116:25 -

1 stop18h 25m

Fri 27/1109:40 -

2 stops16h 45m

Deal found 17/8£670

Fri 27/1117:10 -

1 stop11h 45m

Thu 3/1220:00 -

1 stop23h 45m

Deal found 17/8£693

Sat 28/1117:13 -

2 stops17h 37m

Wed 2/1217:20 -

1 stop27h 05m

Deal found 17/8£703

Wed 25/1116:25 -

1 stop10h 45m

Mon 30/1117:20 -

2 stops29h 04m

Deal found 17/8£709

Fri 9/1019:05 -

1 stop17h 05m

Tue 20/1006:30 -

1 stop17h 45m

Deal found 18/8£723

Fri 2/1021:15 -

1 stop14h 55m

Fri 9/1006:30 -

1 stop17h 45m

Deal found 18/8£753

Sun 3/117:10 -

1 stop11h 35m

Sat 3/707:05 -

1 stop12h 45m

Deal found 18/8£811

Mon 18/107:29 -

2 stops21h 21m

Fri 22/106:45 -

2 stops15h 58m

Deal found 16/8£844

Fri 11/921:35 -

1 stop17h 00m

Fri 25/911:00 -

2 stops19h 27m

Deal found 19/8£1,032

Fri 2/1012:35 -

2 stops22h 20m

Fri 9/1009:50 -

2 stops18h 43m

Deal found 18/8£1,559

Thu 1/1019:01 -

2 stops15h 54m

Thu 8/1009:50 -

2 stops18h 43m

Deal found 17/8£1,880

Sun 3/109:30 -

2 stops17h 40m

Sat 3/709:55 -

2 stops18h 15m

Deal found 18/8£2,725

Find flight deals from Illinois to Belfast City

Round-trip from	£657
One-way from	£339

British Airways
15/11-19/11
2 total stops
23h 40m total
Illinois to Belfast

Search Deals

Aer Lingus
8/9
2 total stops
17h 55m 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

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 23/11

21:50-16:05

1 stop12h 15m

Belfast City

Fri 27/11

06:45-13:45

1 stop13h 00m

£657

Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 15/11

17:10-10:45

1 stop11h 35m

Belfast City

Thu 19/11

07:40-13:45

1 stop12h 05m

£657

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 25/11

11:29-09:10

2 stops15h 41m

Belfast City

Wed 2/12

17:20-14:25

1 stop27h 05m

£667

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 23/11

16:25-16:50

1 stop18h 25m

Belfast City

Fri 27/11

09:40-20:25

2 stops16h 45m

£670

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Fri 27/11

17:10-10:55

1 stop11h 45m

Belfast City

Thu 3/12

20:00-13:45

1 stop23h 45m

£693

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 28/11

17:13-16:50

2 stops17h 37m

Belfast City

Wed 2/12

17:20-14:25

1 stop27h 05m

£703

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 25/11

16:25-09:10

1 stop10h 45m

Belfast City

Mon 30/11

17:20-16:24

2 stops29h 04m

£709

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Fri 9/10

19:05-18:10

1 stop17h 05m

Belfast City

Tue 20/10

06:30-18:15

1 stop17h 45m

£723

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Fri 2/10

21:15-18:10

1 stop14h 55m

Belfast City

Fri 9/10

06:30-18:15

1 stop17h 45m

£753

ChicagoBelfast

MDW Chicago Midway - BHD Belfast City

MDWBHD

Chicago Midway

Mon 5/10

19:01-16:55

2 stops15h 54m

Belfast City

Mon 12/10

09:50-22:33

2 stops18h 43m

£788

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 23 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.

ORD-BHD

MDW-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

ORD-BHD

MDW-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 12h 15m. British Airways provides one of the quickest options available for as low as £657. 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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Alternative routes for Illinois to Belfast City

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How does Cheapflights help users find flights from Illinois to Belfast City?

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 £339

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.

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 21 August 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 21 August 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 21 August 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 21 August 2026.

Last-minute flights from Illinois to Belfast CityDiscover last-minute flight deals from Illinois to Belfast City. Data last updated 21 August 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Belfast City. Data last updated 21 August 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 21 August 2026.

Search for one-way flight options from Illinois to Belfast City. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Find flight deals from Illinois to Belfast City

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Use the filters below to find and compare flights from Illinois to Belfast City Airport that are best for you.

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.

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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 21 August 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 21 August 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 21 August 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 21 August 2026.

Last-minute flights from Illinois to Belfast City
Discover last-minute flight deals from Illinois to Belfast City. Data last updated 21 August 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 21 August 2026.