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Cheap flights from Northern Ireland to Chicago from £290

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 15/9. 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
1 adult, Economy, 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
07:35 - 16:57
BFS
-
ORD
15h 22m
2 stops
Multiple Airlines Logo
19:25 - 15:50
ORD
-
BFS
14h 25m
2 stops
£600Multiple Airlines
Wed, 19 Aug - Thu, 27 Aug
Multiple Airlines Logo
09:35 - 21:20
BFS
-
ORD
41h 45m
3 stops
Multiple Airlines Logo
22:25 - 21:00
ORD
-
BFS
16h 35m
2 stops
£606Multiple Airlines
Sun, 30 Aug - Sun, 6 Sep
Multiple Airlines Logo
07:35 - 20:05
BFS
-
ORD
18h 30m
3 stops
Multiple Airlines Logo
19:25 - 15:50
ORD
-
BFS
14h 25m
2 stops
£617Multiple Airlines
Wed, 19 Aug - Thu, 27 Aug
Multiple Airlines Logo
18:00 - 21:25
BFS
-
ORD
33h 25m
2 stops
Multiple Airlines Logo
19:25 - 21:00
ORD
-
BFS
19h 35m
2 stops
£634Multiple Airlines
Sun, 30 Aug - Sun, 6 Sep
Multiple Airlines Logo
07:35 - 14:44
BFS
-
ORD
37h 09m
3 stops
Multiple Airlines Logo
19:25 - 22:25
ORD
-
BFS
21h 00m
2 stops
£635Multiple Airlines
Wed, 19 Aug - Thu, 27 Aug
Multiple Airlines Logo
09:35 - 21:20
BFS
-
ORD
41h 45m
3 stops
Multiple Airlines Logo
19:25 - 21:55
ORD
-
BFS
20h 30m
3 stops
£637Multiple Airlines
Sun, 30 Aug - Sun, 6 Sep
Multiple Airlines Logo
07:35 - 16:57
BFS
-
ORD
15h 22m
2 stops
Multiple Airlines Logo
19:25 - 22:25
ORD
-
BFS
21h 00m
2 stops
£645Multiple Airlines
Wed, 19 Aug - Thu, 27 Aug
American Airlines Logo
06:30 - 17:15
BHD
-
ORD
16h 45m
1 stop
American Airlines Logo
19:05 - 12:55
ORD
-
BHD
11h 50m
1 stop
£677American Airlines
Mon, 7 Sep - Mon, 14 Sep
KLM Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
KLM Logo
12:29 - 09:20
ORD
-
BHD
14h 51m
2 stops
£693KLM
Mon, 7 Sep - Mon, 14 Sep
Delta Logo
09:50 - 22:44
BHD
-
ORD
18h 54m
2 stops
Delta Logo
11:17 - 09:20
ORD
-
BHD
16h 03m
2 stops
£696Delta
Mon, 7 Sep - Mon, 14 Sep

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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 16 July 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

Wed 19/8

07:35-16:57

2 stops15h 22m

Chicago O'Hare Intl

Thu 27/8

19:25-15:50

2 stops14h 25m

£600

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 30/8

09:35-21:20

3 stops41h 45m

Chicago O'Hare Intl

Sun 6/9

22:25-21:00

2 stops16h 35m

£606

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 19/8

07:35-20:05

3 stops18h 30m

Chicago O'Hare Intl

Thu 27/8

19:25-15:50

2 stops14h 25m

£617

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 30/8

18:00-21:25

2 stops33h 25m

Chicago O'Hare Intl

Sun 6/9

19:25-21:00

2 stops19h 35m

£634

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 19/8

07:35-14:44

3 stops37h 09m

Chicago O'Hare Intl

Thu 27/8

19:25-22:25

2 stops21h 00m

£635

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 30/8

09:35-21:20

3 stops41h 45m

Chicago O'Hare Intl

Sun 6/9

19:25-21:55

3 stops20h 30m

£637

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 19/8

07:35-16:57

2 stops15h 22m

Chicago O'Hare Intl

Thu 27/8

19:25-22:25

2 stops21h 00m

£645
Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 7/9

06:30-17:15

1 stop16h 45m

Chicago O'Hare Intl

Mon 14/9

19:05-12:55

1 stop11h 50m

£677

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 7/9

17:30-14:15

1 stop26h 45m

Chicago O'Hare Intl

Mon 14/9

12:29-09:20

2 stops14h 51m

£693

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 7/9

09:50-22:44

2 stops18h 54m

Chicago O'Hare Intl

Mon 14/9

11:17-09:20

2 stops16h 03m

£696

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

12h 05m

Direct flights

None
The fastest flight from Northern Ireland to Chicago takes 12h 05m
There are no direct flights from Northern Ireland to Chicago. There are no popular flight routes from Northern Ireland to Chicago.
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Frequently asked questions about flying from Northern Ireland to Chicago

  • 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 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.

Frequently asked questions about flying from Northern Ireland to Chicago

  • 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.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Schererville

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