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Cheap flights from Northern Ireland to Chicago from £278

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 Chicago departing on 7/5. 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 Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:10 - 18:31
BFS
-
ORD
39h 21m
3 stops
Multiple Airlines Logo
19:25 - 15:35
ORD
-
BFS
14h 10m
2 stops
£598Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
07:20 - 17:50
BFS
-
ORD
40h 30m
3 stops
Multiple Airlines Logo
19:25 - 15:15
ORD
-
BFS
13h 50m
2 stops
£608Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
Multiple Airlines Logo
07:00 - 17:15
BHD
-
ORD
40h 15m
3 stops
Multiple Airlines Logo
19:25 - 16:50
ORD
-
BHD
15h 25m
2 stops
£616Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
KLM Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
KLM Logo
11:08 - 09:20
ORD
-
BHD
16h 12m
2 stops
£640KLM
Mon, 13 Apr - Mon, 20 Apr
KLM Logo
09:50 - 21:29
BHD
-
ORD
17h 39m
2 stops
KLM Logo
11:08 - 09:20
ORD
-
BHD
16h 12m
2 stops
£643KLM
Mon, 13 Apr - Mon, 20 Apr
British Airways Logo
11:35 - 17:35
BHD
-
ORD
12h 00m
1 stop
British Airways Logo
15:31 - 13:25
ORD
-
BHD
15h 54m
2 stops
£657British Airways
Wed, 22 Apr - Sun, 26 Apr
Multiple Airlines Logo
07:20 - 17:50
BFS
-
ORD
40h 30m
3 stops
Multiple Airlines Logo
19:25 - 01:20
ORD
-
BFS
23h 55m
3 stops
£657Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
British Airways Logo
10:05 - 23:54
BHD
-
ORD
19h 49m
2 stops
British Airways Logo
15:31 - 13:25
ORD
-
BHD
15h 54m
2 stops
£661British Airways
Wed, 22 Apr - Sun, 26 Apr
British Airways Logo
10:05 - 17:35
BHD
-
ORD
13h 30m
1 stop
British Airways Logo
20:35 - 07:35
ORD
-
BHD
29h 00m
1 stop
£663British Airways
Wed, 22 Apr - Sun, 26 Apr
British Airways Logo
11:35 - 17:35
BHD
-
ORD
12h 00m
1 stop
British Airways Logo
22:30 - 08:50
ORD
-
BHD
28h 20m
1 stop
£665British Airways
Wed, 22 Apr - Sun, 26 Apr

KLM flights from Northern Ireland to Chicago

Our best KLM deals on Northern Ireland to Chicago flight tickets
KLM
13 Apr
BHD17:30Belfast City
26h 45m
1 stop
ORD14:15Chicago O'Hare Intl
20 Apr
ORD11:08Chicago O'Hare Intl
16h 12m
2 stops
BHD09:20Belfast City
£640
KLM
13 Apr
BHD09:50Belfast City
17h 39m
2 stops
ORD21:29Chicago O'Hare Intl
20 Apr
ORD11:08Chicago O'Hare Intl
16h 12m
2 stops
BHD09:20Belfast City
£643

British Airways flights from Northern Ireland to Chicago

Our best British Airways deals on Northern Ireland to Chicago flight tickets
British Airways
22 Apr
BHD11:35Belfast City
12h 00m
1 stop
ORD17:35Chicago O'Hare Intl
26 Apr
ORD15:31Chicago O'Hare Intl
15h 54m
2 stops
BHD13:25Belfast City
£657
British Airways
22 Apr
BHD10:05Belfast City
19h 49m
2 stops
ORD23:54Chicago O'Hare Intl
26 Apr
ORD15:31Chicago O'Hare Intl
15h 54m
2 stops
BHD13:25Belfast City
£661
British Airways
22 Apr
BHD10:05Belfast City
13h 30m
1 stop
ORD17:35Chicago O'Hare Intl
26 Apr
ORD20:35Chicago O'Hare Intl
29h 00m
1 stop
BHD07:35Belfast City
£663

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Chicago 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 March 2026.
Use the filters below to find and compare flights from Northern Ireland to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 13/4

09:10-18:31

3 stops39h 21m

Chicago O'Hare Intl

Mon 20/4

19:25-15:35

2 stops14h 10m

£598

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 21/4

07:20-17:50

3 stops40h 30m

Chicago O'Hare Intl

Tue 28/4

19:25-15:15

2 stops13h 50m

£608

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 13/4

07:00-17:15

3 stops40h 15m

Chicago O'Hare Intl

Mon 20/4

19:25-16:50

2 stops15h 25m

£616

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 13/4

17:30-14:15

1 stop26h 45m

Chicago O'Hare Intl

Mon 20/4

11:08-09:20

2 stops16h 12m

£640

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 13/4

09:50-21:29

2 stops17h 39m

Chicago O'Hare Intl

Mon 20/4

11:08-09:20

2 stops16h 12m

£643
Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 22/4

11:35-17:35

1 stop12h 00m

Chicago O'Hare Intl

Sun 26/4

15:31-13:25

2 stops15h 54m

£657

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 21/4

07:20-17:50

3 stops40h 30m

Chicago O'Hare Intl

Tue 28/4

19:25-01:20

3 stops23h 55m

£657

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 22/4

10:05-23:54

2 stops19h 49m

Chicago O'Hare Intl

Sun 26/4

15:31-13:25

2 stops15h 54m

£661

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 22/4

10:05-17:35

1 stop13h 30m

Chicago O'Hare Intl

Sun 26/4

20:35-07:35

1 stop29h 00m

£663

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 22/4

11:35-17:35

1 stop12h 00m

Chicago O'Hare Intl

Sun 26/4

22:30-08:50

1 stop28h 20m

£665

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
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Cheap Northern Ireland to Chicago flight deals and tips

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

Fastest flight time

13h 30m

Direct flights

None
The fastest flight from Northern Ireland to Chicago takes 13h 30m
There are no direct flights from Northern Ireland to Chicago. There are no popular flight routes from Northern Ireland to Chicago.
Search flight deals

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

    Prices for flights from Northern Ireland to Chicago are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Northern Ireland to Chicago.

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

    The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Northern Ireland to Chicago

Compare and see reviews for airlines that fly from Northern Ireland to Chicago with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £502Free CancellationRating
6.7
7,784 reviews
Search British Airways flights

  • How do I get Price Alerts for flights from Northern Ireland to Chicago?

    Confirm your travel details to search for the latest offers for flights from Northern Ireland to Chicago. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Northern Ireland to Chicago with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Northern Ireland to Chicago . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Northern Ireland to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Northern Ireland.

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

Yes momondo offers price alerts on flights to Chicago from Northern Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport