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Cheap flights from Northern Ireland to Illinois from £387

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Illinois departing on 18/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Northern Ireland to Illinois

Cheap return flights

Delta Logo
06:30 - 14:40BHD-ORD
14h 10m1 stop
Delta Logo
13:22 - 16:55ORD-BHD
21h 33m2 stops
£526Delta
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
07:25 - 10:55BFS-ORD
33h 30m3 stops
Logo
18:00 - 23:35ORD-BFS
23h 35m3 stops
£529
Find Deal
Wed, 10 Sep - Thu, 25 Sep
Delta Logo
06:30 - 18:04BHD-ORD
17h 34m2 stops
Delta Logo
17:00 - 16:55ORD-BHD
17h 55m2 stops
£530Delta
Find Deal
Mon, 22 Sep - Mon, 29 Sep
Logo
09:35 - 10:55BFS-ORD
31h 20m2 stops
Logo
18:00 - 23:35ORD-BFS
23h 35m3 stops
£538
Find Deal
Wed, 10 Sep - Thu, 25 Sep
Virgin Atlantic Logo
06:30 - 14:10BHD-ORD
13h 40m1 stop
Virgin Atlantic Logo
16:15 - 21:15ORD-BHD
23h 00m1 stop
£556Virgin Atlantic
Find Deal
Thu, 18 Sep - Thu, 25 Sep
Delta Logo
06:30 - 18:04BHD-ORD
17h 34m2 stops
Delta Logo
18:50 - 21:15ORD-BHD
20h 25m2 stops
£560Delta
Find Deal
Thu, 18 Sep - Thu, 25 Sep
Logo
08:10 - 16:30BFS-ORD
38h 20m3 stops
Logo
18:00 - 23:35ORD-BFS
23h 35m3 stops
£561
Find Deal
Thu, 18 Sep - Thu, 25 Sep
Logo
09:25 - 16:10BFS-ORD
36h 45m3 stops
Logo
18:00 - 22:25ORD-BFS
22h 25m2 stops
£583
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Delta Logo
06:30 - 14:10BHD-ORD
13h 40m1 stop
Delta Logo
18:28 - 16:55ORD-BHD
16h 27m2 stops
£587Delta
Find Deal
Fri, 19 Sep - Fri, 26 Sep
Delta Logo
06:30 - 21:21BHD-ORD
20h 51m2 stops
Delta Logo
18:28 - 16:55ORD-BHD
16h 27m2 stops
£591Delta
Find Deal
Fri, 19 Sep - Fri, 26 Sep

Delta flights from Northern Ireland to Illinois

Our best Delta deals on Northern Ireland to Illinois flight tickets
Delta
22 Sept
BHD06:30Belfast City
14h 10m
1 stop
ORD14:40Chicago O'Hare Intl
29 Sept
ORD13:22Chicago O'Hare Intl
21h 33m
2 stops
BHD16:55Belfast City
£526
Find similar
Delta
22 Sept
BHD06:30Belfast City
17h 34m
2 stops
ORD18:04Chicago O'Hare Intl
29 Sept
ORD17:00Chicago O'Hare Intl
17h 55m
2 stops
BHD16:55Belfast City
£530
Find similar
Delta
18 Sept
BHD06:30Belfast City
17h 34m
2 stops
ORD18:04Chicago O'Hare Intl
25 Sept
ORD18:50Chicago O'Hare Intl
20h 25m
2 stops
BHD21:15Belfast City
£560
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 22 August 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

BHD - ORD

BHDORD

Belfast City

Mon 22/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Mon 29/9

13:22-16:55

2 stops21h 33m

£526

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/9

07:25-10:55

3 stops33h 30m

Chicago O'Hare Intl

Thu 25/9

18:00-23:35

3 stops23h 35m

£529

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 22/9

06:30-18:04

2 stops17h 34m

Chicago O'Hare Intl

Mon 29/9

17:00-16:55

2 stops17h 55m

£530

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/9

09:35-10:55

2 stops31h 20m

Chicago O'Hare Intl

Thu 25/9

18:00-23:35

3 stops23h 35m

£538

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 18/9

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Thu 25/9

16:15-21:15

1 stop23h 00m

£556

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 18/9

06:30-18:04

2 stops17h 34m

Chicago O'Hare Intl

Thu 25/9

18:50-21:15

2 stops20h 25m

£560

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 18/9

08:10-16:30

3 stops38h 20m

Chicago O'Hare Intl

Thu 25/9

18:00-23:35

3 stops23h 35m

£561

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 9/10

09:25-16:10

3 stops36h 45m

Chicago O'Hare Intl

Thu 16/10

18:00-22:25

2 stops22h 25m

£583

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 19/9

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Fri 26/9

18:28-16:55

2 stops16h 27m

£587

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 19/9

06:30-21:21

2 stops20h 51m

Chicago O'Hare Intl

Fri 26/9

18:28-16:55

2 stops16h 27m

£591

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
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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 £589. 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 £822. 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

Direct flights

None
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 £483Free CancellationRating
6.7
7,292 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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