How long is the flight from Illinois to Northern Ireland?

Airlines like Virgin Atlantic, Delta, and British Airways fly from Illinois to Northern Ireland in about 18h 25m. The time it takes to get you to your destination can typically vary by up to 15m. Airlines will cover a distance of 3644 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What is the cheapest month to book a flight from Illinois to Northern Ireland?

Currently, January is the cheapest month in which you can book a flight from Illinois to Northern Ireland (average of £67). Flying from Illinois to Northern Ireland in July is currently the most expensive (average of £90). 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.

In terms of precipitation, rainfall in Northern Ireland 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 Northern Ireland when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Northern Ireland, 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 is the cheapest time of day to fly from IL to NIR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Northern Ireland as you normally would.

Can I find deals for flights from Illinois to Northern Ireland that include hotel bookings?

Yes. In addition to deals on Illinois to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Illinois to Northern Ireland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Northern Ireland.

Can I find deals for business class flights from Illinois to Northern Ireland?

Yes. Cheapflights offers flight deals from Illinois to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£335+ Flights from Illinois to Northern Ireland

Cheap flight deals from Illinois to Northern Ireland

Round-trip from	£500
One-way from	£335

Virgin Atlantic
3/10-7/10
2 total stops
32h 20m total
Illinois to Northern Ireland

Search Deals

24/12
3 total stops
46h 05m total
Illinois to Northern Ireland

Search Deals

Find flight deals from Illinois to Northern Ireland

Cheapest flights from Illinois to Northern Ireland
Explore the most affordable flight options available from Illinois to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 3/1016:15ORD - BHD

1 stop18h 40mVirgin Atlantic

Tue 7/1006:30BHD - ORD

1 stop13h 40mVirgin Atlantic

Deal found 16/9£500

Fri 5/1216:25ORD - BHD

1 stop22h 35mVirgin Atlantic

Tue 9/1217:20BHD - ORD

1 stop27h 00mVirgin Atlantic

Deal found 17/9£500

Fri 5/1217:10ORD - BHD

1 stop15h 05mBritish Airways

Tue 9/1206:35BHD - ORD

1 stop18h 10mBritish Airways

Deal found 15/9£511

Fri 17/1018:23MDW - BHD

2 stops20h 52mDelta

Tue 21/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 16/9£511

Fri 5/1217:03ORD - BHD

2 stops17h 47mDelta

Tue 9/1217:20BHD - ORD

1 stop27h 00mDelta

Deal found 15/9£532

Fri 31/1021:15ORD - BFS

3 stops20h 30mMultiple Airlines

Fri 7/1121:30BFS - ORD

3 stops47h 15mMultiple Airlines

Deal found 16/9£537

Fri 3/1009:20MDW - BHD

2 stops29h 55mDelta

Tue 7/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 15/9£539

Sat 4/1017:40ORD - BHD

1 stop10h 30mAmerican Airlines

Sat 11/1007:05BHD - ORD

2 stops16h 31mAmerican Airlines

Deal found 17/9£542

Fri 3/1016:15ORD - BHD

1 stop18h 40mKLM

Tue 7/1006:30BHD - ORD

1 stop13h 40mKLM

Deal found 15/9£567

Sat 1/1120:20ORD - BFS

2 stops21h 20mMultiple Airlines

Sat 8/1106:00BFS - ORD

3 stops38h 45mMultiple Airlines

Deal found 17/9£582

Thu 30/1018:10ORD - BHD

1 stop11h 10mBritish Airways

Mon 10/1109:15BHD - ORD

1 stop15h 30mBritish Airways

Deal found 15/9£595

Fri 5/1214:10ORD - BHD

2 stops14h 20mAmerican Airlines

Tue 9/1208:45BHD - ORD

2 stops15h 10mAmerican Airlines

Deal found 17/9£614

Best flights from Illinois to Northern Ireland
Discover carefully curated flight deals from Illinois to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Fri 3/1016:15ORD - BHD

1 stop18h 40mVirgin Atlantic

Tue 7/1006:30BHD - ORD

1 stop13h 40mVirgin Atlantic

Deal found 16/9£500

Fri 5/1216:25ORD - BHD

1 stop18h 25mDelta

Tue 9/1217:20BHD - ORD

1 stop27h 00mDelta

Deal found 16/9£500

Fri 31/1021:15ORD - BFS

3 stops20h 30mMultiple Airlines

Fri 7/1121:30BFS - ORD

3 stops47h 15mMultiple Airlines

Deal found 16/9£537

Sat 4/1017:40ORD - BHD

1 stop10h 30mAmerican Airlines

Sat 11/1007:05BHD - ORD

2 stops16h 31mAmerican Airlines

Deal found 17/9£542

Fri 3/1016:15ORD - BHD

1 stop18h 40mKLM

Tue 7/1006:30BHD - ORD

1 stop13h 40mKLM

Deal found 15/9£567

Fri 31/1018:10ORD - BHD

1 stop15h 05mBritish Airways

Mon 10/1111:30BHD - ORD

1 stop13h 15mBritish Airways

Deal found 15/9£595

Fri 5/1216:25ORD - BHD

1 stop22h 35mVirgin Atlantic

Tue 9/1217:20BHD - ORD

1 stop27h 00mVirgin Atlantic

Deal found 17/9£500

Fri 17/1018:23MDW - BHD

2 stops20h 52mDelta

Tue 21/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 16/9£511

Sat 1/1120:20ORD - BFS

2 stops21h 20mMultiple Airlines

Sat 8/1106:00BFS - ORD

3 stops38h 45mMultiple Airlines

Deal found 17/9£582

Fri 3/1009:20MDW - BHD

2 stops29h 55mDelta

Tue 7/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 15/9£539

Thu 30/1018:10ORD - BHD

1 stop11h 10mBritish Airways

Mon 10/1109:15BHD - ORD

1 stop15h 30mBritish Airways

Deal found 15/9£595

Sun 1/316:00STL - BHD

2 stops23h 00mVirgin Atlantic

Thu 5/306:30BHD - STL

2 stops20h 09mVirgin Atlantic

Deal found 15/9£587

Sun 1/306:45STL - BHD

2 stops32h 15mDelta

Thu 5/306:30BHD - STL

2 stops16h 25mDelta

Deal found 17/9£545

Sat 4/1008:40ORD - BFS

3 stops20h 20mMultiple Airlines

Sat 11/1009:40BFS - ORD

3 stops31h 10mMultiple Airlines

Deal found 17/9£654

Thu 16/1010:36STL - BHD

2 stops18h 34mBritish Airways

Sat 25/1019:00BHD - STL

2 stops34h 49mBritish Airways

Deal found 17/9£671

Fri 3/1009:35MDW - BHD

2 stops25h 20mVirgin Atlantic

Tue 7/1017:25BHD - MDW

2 stops31h 00mVirgin Atlantic

Deal found 16/9£742

Sat 1/1116:25STL - BHD

2 stops19h 20mAmerican Airlines

Sat 8/1111:35BHD - STL

2 stops16h 54mAmerican Airlines

Deal found 17/9£987

Mon 29/909:35MDW - BFS

3 stops29h 20mMultiple Airlines

Thu 2/1007:10BFS - MDW

3 stops31h 29mMultiple Airlines

Deal found 16/9£1,562

Tue 30/909:20MDW - BFS

3 stops25h 20mMultiple Airlines

Fri 3/1010:00BFS - MDW

3 stops28h 39mMultiple Airlines

Deal found 16/9£1,748

Sat 1/1116:05STL - BFS

3 stops25h 35mMultiple Airlines

Sat 8/1108:40BFS - STL

3 stops35h 15mMultiple Airlines

Deal found 17/9£2,044

Sat 4/1016:25MDW - BHD

2 stops22h 50mDelta

Sat 11/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 17/9£3,654

Last-minute flights from Illinois to Northern Ireland
Discover last-minute flight deals from Illinois to Northern Ireland. Data last updated 18 September 2025 and is based on user searches.

Wed 17/918:55ORD - BHD

2 stops14h 40mBritish Airways

Wed 24/920:15BHD - ORD

2 stops25h 30mBritish Airways

Deal found 16/9£650

Fri 3/1016:15ORD - BHD

1 stop18h 40mVirgin Atlantic

Tue 7/1006:30BHD - ORD

1 stop13h 40mVirgin Atlantic

Deal found 16/9£500

Fri 3/1009:20MDW - BHD

2 stops29h 55mDelta

Tue 7/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 15/9£539

Fri 3/1016:15ORD - BHD

1 stop18h 40mKLM

Tue 7/1006:30BHD - ORD

1 stop13h 40mKLM

Deal found 15/9£567

Fri 3/1018:52ORD - BHD

2 stops17h 23mAmerican Airlines

Tue 7/1009:35BHD - ORD

2 stops17h 48mAmerican Airlines

Deal found 16/9£619

Sat 4/1017:40ORD - BHD

1 stop10h 30mAmerican Airlines

Sat 11/1007:05BHD - ORD

2 stops16h 31mAmerican Airlines

Deal found 17/9£542

Sat 4/1020:25ORD - BHD

2 stops30h 40mBritish Airways

Sat 11/1019:00BHD - ORD

2 stops28h 17mBritish Airways

Deal found 17/9£637

Sat 4/1008:40ORD - BFS

3 stops20h 20mMultiple Airlines

Sat 11/1009:40BFS - ORD

3 stops31h 10mMultiple Airlines

Deal found 17/9£654

Thu 16/1010:36STL - BHD

2 stops18h 34mBritish Airways

Sat 25/1019:00BHD - STL

2 stops34h 49mBritish Airways

Deal found 17/9£671

Fri 17/1018:23MDW - BHD

2 stops20h 52mDelta

Tue 21/1006:30BHD - MDW

2 stops17h 55mDelta

Deal found 16/9£511

Thu 30/1018:10ORD - BHD

1 stop11h 10mBritish Airways

Mon 10/1109:15BHD - ORD

1 stop15h 30mBritish Airways

Deal found 15/9£595

Fri 31/1021:15ORD - BFS

3 stops20h 30mMultiple Airlines

Fri 7/1121:30BFS - ORD

3 stops47h 15mMultiple Airlines

Deal found 16/9£537

One-way flights from Illinois to Northern Ireland
Search for one-way flight options from Illinois to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Wed 24/1219:20ORD - BFS

3 stops46h 05mMultiple Airlines

Deal found 17/9£335

Tue 23/1209:41ORD - BHD

2 stops25h 09mDelta

Deal found 17/9£352

Tue 23/1209:29MDW - BHD

2 stops25h 21mDelta

Deal found 17/9£352

Wed 24/1222:55ORD - BHD

3 stops34h 55mMultiple Airlines

Deal found 17/9£362

Tue 23/1218:30ORD - BFS

2 stops13h 35mMultiple Airlines

Deal found 17/9£382

Wed 24/1218:01ORD - BHD

2 stops40h 49mDelta

Deal found 17/9£405

Wed 24/1218:00MDW - BHD

2 stops45h 00mDelta

Deal found 17/9£405

Thu 18/1218:30ORD - BFS

2 stops19h 55mMultiple Airlines

Deal found 17/9£419

Fri 19/1218:30ORD - BFS

2 stops30h 15mMultiple Airlines

Deal found 17/9£433

Thu 18/1218:30ORD - BHD

2 stops32h 25mMultiple Airlines

Deal found 17/9£448

Sat 20/1218:30ORD - BFS

2 stops30h 55mMultiple Airlines

Deal found 17/9£456

Mon 22/1210:18ORD - BHD

2 stops28h 12mMultiple Airlines

Deal found 17/9£489

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/10

16:15-16:55

1 stop18h 40m

Belfast City

Tue 7/10

06:30-14:10

1 stop13h 40m

£500

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 5/12

16:25-16:50

1 stop18h 25m

Belfast City

Tue 9/12

17:20-14:20

1 stop27h 00m

£500

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 5/12

16:25-21:00

1 stop22h 35m

Belfast City

Tue 9/12

17:20-14:20

1 stop27h 00m

£500

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 17/10

18:23-21:15

2 stops20h 52m

Belfast City

Tue 21/10

06:30-18:25

2 stops17h 55m

£511

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 31/10

21:15-22:45

3 stops20h 30m

Belfast Intl

Fri 7/11

21:30-14:45

3 stops47h 15m

£537

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 3/10

09:20-21:15

2 stops29h 55m

Belfast City

Tue 7/10

06:30-18:25

2 stops17h 55m

£539

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 4/10

17:40-10:10

1 stop10h 30m

Belfast City

Sat 11/10

07:05-17:36

2 stops16h 31m

£542

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 1/3

06:45-21:00

2 stops32h 15m

Belfast City

Thu 5/3

06:30-16:55

2 stops16h 25m

£545

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/10

16:15-16:55

1 stop18h 40m

Belfast City

Tue 7/10

06:30-14:10

1 stop13h 40m

£567

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 1/11

20:20-22:40

2 stops21h 20m

Belfast Intl

Sat 8/11

06:00-14:45

3 stops38h 45m

£582

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 46 results

...

Best time to book a flight from Illinois to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland 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 Northern Ireland

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 Northern Ireland?
Airlines like Virgin Atlantic, Delta, and British Airways fly from Illinois to Northern Ireland in about 18h 25m. The time it takes to get you to your destination can typically vary by up to 15m. Airlines will cover a distance of 3644 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Illinois to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Illinois to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Northern Ireland.
Can I find deals for business class flights from Illinois to Northern Ireland?
Yes. Cheapflights offers flight deals from Illinois to Northern Ireland 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 Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from Illinois to Northern Ireland (average of £67). Flying from Illinois to Northern Ireland in July is currently the most expensive (average of £90). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Illinois to Northern Ireland

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O'Hare Intl to Heathrow flights

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Newark to London City flights

LaGuardia to Gatwick flights

John F Kennedy Intl to Stansted flights

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Hobby to Heathrow flights

Miami to Heathrow flights

Boston to London City flights

Boston to Gatwick flights

Newark to Stansted flights

Atlanta to Heathrow flights

Newark to Luton flights

Dulles Intl to Gatwick flights

Philadelphia to Heathrow flights

Reagan-National to Heathrow flights

Denver to Heathrow flights

Dulles Intl to London City flights

Orlando to Heathrow flights

Baltimore to Gatwick flights

George Bush Intcntl to Heathrow flights

Reagan-National to Gatwick flights

Los Angeles to London City flights

Dallas/Fort Worth to Gatwick flights

Boston to Stansted flights

Newark to Edinburgh flights

O'Hare Intl to Gatwick flights

San Francisco to Gatwick flights

Los Angeles to Gatwick flights

Boston to Luton flights

O'Hare Intl to London City flights

Minneapolis to Heathrow flights

San Francisco to London City flights

Raleigh to Heathrow flights

Dulles Intl to Luton flights

John F Kennedy Intl to Edinburgh flights

Direct flights to United Kingdom

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How does Cheapflights help users find flights from Illinois to Northern Ireland?

Cheapflights helps you search for flights from Illinois to Northern Ireland 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 Northern Ireland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Northern Ireland from Illinois.

Can Cheapflights find flights from Illinois to Northern Ireland with no change fees?

Yes, we can. To see specific flights from Illinois to Northern Ireland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Northern Ireland become cheaper?

Of course! You can now track prices for flights from Illinois to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Illinois to Northern Ireland from £335

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 24/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Northern Ireland

Keep the following information in mind while searching for Illinois to Northern Ireland flight deals. Data was last updated 18 September 2025.

Round-trip from

One-way from

Find flight deals from Illinois to Northern Ireland

Cheapest flights from Illinois to Northern IrelandExplore the most affordable flight options available from Illinois to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Illinois to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Northern Ireland that are best for you.

Best time to book a flight from Illinois to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Northern Ireland

Related info for your journey

Find useful and relevant information for your journey from Illinois to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Illinois to Northern Ireland?

Can I find deals for flights from Illinois to Northern Ireland that include hotel bookings?

How can I find direct flights from Illinois to Northern Ireland?

Can I find deals for business class flights from Illinois to Northern Ireland?

What is the cheapest month to book a flight from Illinois to Northern Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Northern Ireland?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Northern Ireland?

Can Cheapflights find flights from Illinois to Northern Ireland with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Northern Ireland become cheaper?

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Cheapest flights from Illinois to Northern Ireland
Explore the most affordable flight options available from Illinois to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.