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Cheap flights from Northern Ireland to Illinois from £500

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Illinois departing on 19/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Northern Ireland to Illinois

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
22:20 - 15:00
BFS
-
ORD
46h 40m3 stops
Multiple Airlines Logo
18:30 - 19:05
ORD
-
BFS
18h 35m2 stops
£500Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
08:10 - 17:20
BFS
-
ORD
15h 10m2 stops
Multiple Airlines Logo
18:30 - 20:15
ORD
-
BFS
19h 45m2 stops
£563Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
22:45 - 19:15
BFS
-
ORD
26h 30m3 stops
Multiple Airlines Logo
16:38 - 20:10
ORD
-
BFS
21h 32m3 stops
£587Multiple Airlines
Sun, 25 Jan - Sun, 1 Feb
American Airlines Logo
06:35 - 15:25
BHD
-
ORD
14h 50m1 stop
American Airlines Logo
21:45 - 16:05
ORD
-
BHD
12h 20m1 stop
£590American Airlines
Mon, 19 Jan - Mon, 26 Jan
Delta Logo
17:20 - 16:57
BHD
-
ORD
29h 37m2 stops
Delta Logo
16:25 - 16:50
ORD
-
BHD
18h 25m1 stop
£600Delta
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
09:15 - 14:45
BFS
-
ORD
35h 30m3 stops
Multiple Airlines Logo
18:30 - 22:30
ORD
-
BFS
22h 00m3 stops
£600Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
06:00 - 16:45
BFS
-
ORD
16h 45m2 stops
Multiple Airlines Logo
19:20 - 22:40
ORD
-
BFS
21h 20m3 stops
£617Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
British Airways Logo
11:05 - 17:00
BHD
-
ORD
11h 55m1 stop
British Airways Logo
11:44 - 10:40
ORD
-
BHD
16h 56m2 stops
£622British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
11:05 - 17:00
BHD
-
ORD
11h 55m1 stop
British Airways Logo
17:10 - 14:15
ORD
-
BHD
15h 05m1 stop
£623British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
09:05 - 20:10
BHD
-
ORD
17h 05m2 stops
British Airways Logo
16:14 - 14:15
ORD
-
BHD
16h 01m2 stops
£627British Airways
Thu, 29 Jan - Mon, 2 Feb

British Airways flights from Northern Ireland to Illinois

Our best British Airways deals on Northern Ireland to Illinois flight tickets
British Airways
29 Jan
BHD11:05Belfast City
11h 55m
1 stop
ORD17:00Chicago O'Hare Intl
2 Feb
ORD11:44Chicago O'Hare Intl
16h 56m
2 stops
BHD10:40Belfast City
£622
Find similar
British Airways
29 Jan
BHD11:05Belfast City
11h 55m
1 stop
ORD17:00Chicago O'Hare Intl
2 Feb
ORD17:10Chicago O'Hare Intl
15h 05m
1 stop
BHD14:15Belfast City
£623
Find similar
British Airways
29 Jan
BHD09:05Belfast City
13h 55m
1 stop
ORD17:00Chicago O'Hare Intl
2 Feb
ORD17:10Chicago O'Hare Intl
11h 30m
1 stop
BHD10:40Belfast City
£626
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Illinois 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, momondo users made 279,928 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Northern Ireland to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 19/1

22:20-15:00

3 stops46h 40m

Chicago O'Hare Intl

Mon 26/1

18:30-19:05

2 stops18h 35m

£500

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 24/1

08:10-17:20

2 stops15h 10m

Chicago O'Hare Intl

Sat 31/1

18:30-20:15

2 stops19h 45m

£563

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 25/1

22:45-19:15

3 stops26h 30m

Chicago O'Hare Intl

Sun 1/2

16:38-20:10

3 stops21h 32m

£587

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 19/1

06:35-15:25

1 stop14h 50m

Chicago O'Hare Intl

Mon 26/1

21:45-16:05

1 stop12h 20m

£590

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 19/1

17:20-16:57

2 stops29h 37m

Chicago O'Hare Intl

Mon 26/1

16:25-16:50

1 stop18h 25m

£600

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 24/1

09:15-14:45

3 stops35h 30m

Chicago O'Hare Intl

Sat 31/1

18:30-22:30

3 stops22h 00m

£600

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 24/1

06:00-16:45

2 stops16h 45m

Chicago O'Hare Intl

Sat 31/1

19:20-22:40

3 stops21h 20m

£617

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

11:05-17:00

1 stop11h 55m

Chicago O'Hare Intl

Mon 2/2

11:44-10:40

2 stops16h 56m

£622

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

11:05-17:00

1 stop11h 55m

Chicago O'Hare Intl

Mon 2/2

17:10-14:15

1 stop15h 05m

£623

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

09:05-20:10

2 stops17h 05m

Chicago O'Hare Intl

Mon 2/2

16:14-14:15

2 stops16h 01m

£627

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Illinois from

How to get the cheapest flight ticket from Northern Ireland to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart on your flight to Illinois is on a Friday when prices can be found for as low as £592. This is often the case because there is less demand to fly during this day of the week. Flights from Northern Ireland to Illinois on a Saturday will generally be more expensive and average around £825. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Cheap Northern Ireland to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Illinois

Fastest flight time

19h 40m

Direct flights

None
The fastest flight from Northern Ireland to Illinois takes 19h 40m
There are no direct flights from Northern Ireland to Illinois. There are no popular flight routes from Northern Ireland to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Northern Ireland to Illinois?

    Prices for flights from Northern Ireland to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Northern Ireland to Illinois?

  • How old do you have to be to fly from Northern Ireland to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to Illinois

Compare and see reviews for airlines that fly from Northern Ireland to Illinois with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £485Free CancellationRating
6.7
7,571 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Northern Ireland.

Can I find flights from Northern Ireland to Illinois with flexible booking policies on momondo?

All flight searches from Northern Ireland to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Northern Ireland to Illinois?

Once you have performed a search for Northern Ireland to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Northern Ireland to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Northern Ireland and alert you when they change.

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