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Cheap flights from Northern Ireland to Chicago from $421

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 5/14. 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 Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
8:00 pm - 5:00 pm
BHD
-
ORD
27h 00m1 stop
British Airways Logo
5:10 pm - 10:40 am
ORD
-
BHD
11h 30m1 stop
$674British Airways
Thu, Jan 29 - Mon, Feb 2
British Airways Logo
7:35 pm - 7:49 pm
BHD
-
ORD
30h 14m2 stops
British Airways Logo
9:45 pm - 4:05 pm
ORD
-
BHD
12h 20m1 stop
$679British Airways
Fri, Feb 6 - Mon, Feb 9
British Airways Logo
5:40 pm - 7:49 pm
BHD
-
ORD
32h 09m2 stops
British Airways Logo
9:45 pm - 2:15 pm
ORD
-
BHD
10h 30m1 stop
$682British Airways
Fri, Feb 6 - Mon, Feb 9
British Airways Logo
3:05 pm - 2:55 pm
BHD
-
ORD
29h 50m2 stops
British Airways Logo
4:30 pm - 10:30 am
ORD
-
BHD
36h 00m2 stops
$691British Airways
Thu, Jan 29 - Mon, Feb 2
British Airways Logo
6:45 am - 1:50 pm
BHD
-
ORD
13h 05m1 stop
British Airways Logo
9:45 pm - 4:05 pm
ORD
-
BHD
12h 20m1 stop
$696British Airways
Fri, Feb 6 - Mon, Feb 9
British Airways Logo
6:45 am - 1:50 pm
BHD
-
ORD
13h 05m1 stop
British Airways Logo
5:10 pm - 2:15 pm
ORD
-
BHD
15h 05m1 stop
$697British Airways
Fri, Feb 6 - Mon, Feb 9
British Airways Logo
6:45 am - 1:50 pm
BHD
-
ORD
13h 05m1 stop
British Airways Logo
5:10 pm - 10:40 am
ORD
-
BHD
11h 30m1 stop
$699British Airways
Fri, Feb 6 - Mon, Feb 9
British Airways Logo
6:35 am - 5:42 pm
BHD
-
ORD
17h 07m2 stops
British Airways Logo
4:14 pm - 2:15 pm
ORD
-
BHD
16h 01m2 stops
$702British Airways
Thu, Jan 29 - Mon, Feb 2
British Airways Logo
6:35 am - 1:50 pm
BHD
-
ORD
13h 15m1 stop
British Airways Logo
5:10 pm - 2:15 pm
ORD
-
BHD
15h 05m1 stop
$720British Airways
Thu, Jan 29 - Mon, Feb 2
British Airways Logo
9:05 am - 5:00 pm
BHD
-
ORD
13h 55m1 stop
British Airways Logo
11:44 am - 10:40 am
ORD
-
BHD
16h 56m2 stops
$722British Airways
Thu, Jan 29 - Mon, Feb 2

British Airways flights from Northern Ireland to Chicago O'Hare Intl Airport

Our best British Airways deals on Northern Ireland to Chicago O'Hare Intl Airport flight tickets
British Airways
Jan 29
BHD8:00 pmBelfast City
27h 00m
1 stop
ORD5:00 pmChicago O'Hare Intl
Feb 2
ORD5:10 pmChicago O'Hare Intl
11h 30m
1 stop
BHD10:40 amBelfast City
$674
British Airways
Feb 6
BHD7:35 pmBelfast City
30h 14m
2 stops
ORD7:49 pmChicago O'Hare Intl
Feb 9
ORD11:47 amChicago O'Hare Intl
22h 18m
2 stops
BHD4:05 pmBelfast City
$679
British Airways
Feb 6
BHD5:40 pmBelfast City
32h 09m
2 stops
ORD7:49 pmChicago O'Hare Intl
Feb 9
ORD9:45 pmChicago O'Hare Intl
10h 30m
1 stop
BHD2:15 pmBelfast City
$682

momondo Fare Finder

 
Customize your flight search to find flights from Northern Ireland to Chicago O'Hare Intl Airport 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 832,500 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from Northern Ireland to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/29

8:00 pm-5:00 pm

1 stop27h 00m

Chicago O'Hare Intl

Mon 2/2

5:10 pm-10:40 am

1 stop11h 30m

$674

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 2/6

7:35 pm-7:49 pm

2 stops30h 14m

Chicago O'Hare Intl

Mon 2/9

9:45 pm-4:05 pm

1 stop12h 20m

$679

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 2/6

5:40 pm-7:49 pm

2 stops32h 09m

Chicago O'Hare Intl

Mon 2/9

9:45 pm-2:15 pm

1 stop10h 30m

$682

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/29

3:05 pm-2:55 pm

2 stops29h 50m

Chicago O'Hare Intl

Mon 2/2

4:30 pm-10:30 am

2 stops36h 00m

$691

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 2/6

6:45 am-1:50 pm

1 stop13h 05m

Chicago O'Hare Intl

Mon 2/9

9:45 pm-4:05 pm

1 stop12h 20m

$696

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 2/6

6:45 am-1:50 pm

1 stop13h 05m

Chicago O'Hare Intl

Mon 2/9

5:10 pm-2:15 pm

1 stop15h 05m

$697

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 2/6

6:45 am-1:50 pm

1 stop13h 05m

Chicago O'Hare Intl

Mon 2/9

5:10 pm-10:40 am

1 stop11h 30m

$699

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/29

6:35 am-5:42 pm

2 stops17h 07m

Chicago O'Hare Intl

Mon 2/2

4:14 pm-2:15 pm

2 stops16h 01m

$702

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/29

6:35 am-1:50 pm

1 stop13h 15m

Chicago O'Hare Intl

Mon 2/2

5:10 pm-2:15 pm

1 stop15h 05m

$720

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/29

9:05 am-5:00 pm

1 stop13h 55m

Chicago O'Hare Intl

Mon 2/2

11:44 am-10:40 am

2 stops16h 56m

$722

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Cheap Northern Ireland to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Chicago O'Hare Intl Airport

Fastest flight time

11h 55m

Direct flights

None
The fastest flight from Northern Ireland to Chicago O'Hare Intl Airport takes 11h 55m
There are no direct flights from Northern Ireland to Chicago O'Hare Intl Airport. There are no popular flight routes from Northern Ireland to Chicago O'Hare Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from Northern Ireland to Chicago O'Hare Intl Airport?

    Prices for flights from Northern Ireland to Chicago O'Hare Intl Airport are updated daily.

  • How old do you have to be to fly from Northern Ireland to Chicago O'Hare Intl Airport?

    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 Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Northern Ireland to Chicago O'Hare Intl Airport?

    Price Alerts will notify you by email when the price for flights to Chicago O'Hare Intl Airport from Northern Ireland decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Northern Ireland to Chicago O'Hare Intl Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for 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.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
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Racine
Hammond
Janesville
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Elgin
Aurora
South Holland

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Northern Ireland to Chicago for you.

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

Yes. All flights to Chicago from Northern Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

If you are not ready to book a flight from Northern Ireland to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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