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.

$538 Cheap Flights from Northern Ireland to Chicago O'Hare Intl Airport in 2026

Find the cheapest flights from Northern Ireland to Chicago

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 am - 6:45 pmBHD Belfast City-ORD Chicago O'Hare Intl

17h 05m1 stop London Heathrow

9:50 pm - 2:15 pmORD Chicago O'Hare Intl-BHD Belfast City

10h 25m1 stop London Heathrow

$844British Airways

Thu, Dec 3 - Mon, Dec 7

8:50 am - 7:41 pmBHD Belfast City-ORD Chicago O'Hare Intl

16h 51m2 stops London Heathrow Toronto Pearson Intl

9:50 pm - 5:25 pmORD Chicago O'Hare Intl-BHD Belfast City

13h 35m1 stop London Heathrow

$853British Airways

Thu, Dec 3 - Mon, Dec 7

9:35 am - 3:55 pmBHD Belfast City-ORD Chicago O'Hare Intl

12h 20m1 stop London Heathrow

4:26 pm - 3:30 pmORD Chicago O'Hare Intl-BHD Belfast City

17h 04m2 stops New York John F Kennedy Intl London Heathrow

$873British Airways

Thu, Oct 1 - Mon, Oct 5

8:50 am - 7:41 pmBHD Belfast City-ORD Chicago O'Hare Intl

16h 51m2 stops London Heathrow Toronto Pearson Intl

3:16 pm - 2:15 pmORD Chicago O'Hare Intl-BHD Belfast City

16h 59m2 stops Boston Logan Intl London Heathrow

$883British Airways

Thu, Dec 3 - Mon, Dec 7

9:10 pm - 4:53 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

25h 43m2 stops London Gatwick Toronto Pearson Intl

10:25 pm - 9:00 pmORD Chicago O'Hare Intl-BFS Belfast Intl

16h 35m2 stops Reykjavik Keflavik Intl Glasgow Intl

$888Multiple Airlines

Fri, Oct 2 - Sun, Oct 4

6:15 am - 10:06 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

21h 51m2 stops London Gatwick Toronto Pearson Intl

7:30 pm - 8:55 pmORD Chicago O'Hare Intl-BFS Belfast Intl

20h 25m2 stops Reykjavik Keflavik Intl Glasgow Intl

$889Multiple Airlines

Tue, Oct 20 - Tue, Oct 27

9:35 am - 10:04 pmBHD Belfast City-ORD Chicago O'Hare Intl

18h 29m2 stops London Heathrow Dallas/Fort Worth

5:00 pm - 10:30 amORD Chicago O'Hare Intl-BHD Belfast City

11h 30m1 stop London Heathrow

$890British Airways

Fri, Oct 2 - Sun, Oct 4

11:40 am - 7:30 pmBHD Belfast City-ORD Chicago O'Hare Intl

13h 50m1 stop London Heathrow

4:50 pm - 1:50 pmORD Chicago O'Hare Intl-BHD Belfast City

15h 00m2 stops Cincinnati Cinci./N. Kentucky London Heathrow

$912British Airways

Wed, Nov 4 - Sun, Nov 8

9:15 am - 7:30 pmBHD Belfast City-ORD Chicago O'Hare Intl

16h 15m1 stop London Heathrow

5:10 pm - 1:50 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 40m1 stop London Heathrow

$913British Airways

Wed, Nov 4 - Sun, Nov 8

9:15 am - 7:30 pmBHD Belfast City-ORD Chicago O'Hare Intl

16h 15m1 stop London Heathrow

5:10 pm - 1:50 pmORD Chicago O'Hare Intl-BHD Belfast City

14h 40m1 stop London Heathrow

$914British Airways

Wed, Nov 4 - Sun, Nov 8

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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

Dec 3

BHD7:40 amBelfast City

17h 05m

1 stop

ORD6:45 pmChicago O'Hare Intl

Dec 7

ORD9:50 pmChicago O'Hare Intl

10h 25m

1 stop

BHD2:15 pmBelfast City

$844

British Airways

Dec 3

BHD8:50 amBelfast City

16h 51m

2 stops

ORD7:41 pmChicago O'Hare Intl

Dec 7

ORD9:50 pmChicago O'Hare Intl

13h 35m

1 stop

BHD5:25 pmBelfast City

$853

British Airways

Oct 1

BHD9:35 amBelfast City

12h 20m

1 stop

ORD3:55 pmChicago O'Hare Intl

Oct 5

ORD4:26 pmChicago O'Hare Intl

17h 04m

2 stops

BHD3:30 pmBelfast City

$873

KLM flights from Northern Ireland to Chicago O'Hare Intl Airport

Our best KLM deals on Northern Ireland to Chicago O'Hare Intl Airport flight tickets

KLM

Oct 1

BHD9:50 amBelfast City

16h 40m

2 stops

ORD8:30 pmChicago O'Hare Intl

Oct 5

ORD10:30 amChicago O'Hare Intl

16h 50m

2 stops

BHD9:20 amBelfast City

$939

KLM

Oct 2

BHD9:50 amBelfast City

17h 47m

2 stops

ORD9:37 pmChicago O'Hare Intl

Oct 4

ORD10:30 amChicago O'Hare Intl

16h 50m

2 stops

BHD9:20 amBelfast City

$980

momondo Fare Finder

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

Cheapest round-trip

Quickest round-trip

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 12/3

7:40 am-6:45 pm

1 stop17h 05m

Chicago O'Hare Intl

Mon 12/7

9:50 pm-2:15 pm

1 stop10h 25m

$844

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 12/3

8:50 am-7:41 pm

2 stops16h 51m

Chicago O'Hare Intl

Mon 12/7

9:50 pm-5:25 pm

1 stop13h 35m

$853

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 10/1

9:35 am-3:55 pm

1 stop12h 20m

Chicago O'Hare Intl

Mon 10/5

4:26 pm-3:30 pm

2 stops17h 04m

$873

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 12/3

8:50 am-7:41 pm

2 stops16h 51m

Chicago O'Hare Intl

Mon 12/7

3:16 pm-2:15 pm

2 stops16h 59m

$883

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Fri 10/2

9:10 pm-4:53 pm

2 stops25h 43m

Chicago O'Hare Intl

Sun 10/4

10:25 pm-9:00 pm

2 stops16h 35m

$888

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Tue 10/20

6:15 am-10:06 pm

2 stops21h 51m

Chicago O'Hare Intl

Tue 10/27

7:30 pm-8:55 pm

2 stops20h 25m

$889

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Fri 10/2

9:35 am-10:04 pm

2 stops18h 29m

Chicago O'Hare Intl

Sun 10/4

5:00 pm-10:30 am

1 stop11h 30m

$890

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 11/4

11:40 am-7:30 pm

1 stop13h 50m

Chicago O'Hare Intl

Sun 11/8

4:50 pm-1:50 pm

2 stops15h 00m

$912

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 11/4

9:15 am-7:30 pm

1 stop16h 15m

Chicago O'Hare Intl

Sun 11/8

5:10 pm-1:50 pm

1 stop14h 40m

$913

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 11/4

9:15 am-7:30 pm

1 stop16h 15m

Chicago O'Hare Intl

Sun 11/8

5:10 pm-1:50 pm

1 stop14h 40m

$914

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Northern Ireland to Chicago O'Hare Intl Airport

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 airline that flies from Northern Ireland to Chicago O'Hare Intl?

British Airways is the most popular carrier operating from Northern Ireland to Chicago O'Hare Intl

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

Best Price Found	$538
Fastest flight time	16h 15m
Direct flights	None

The best one-way flight to Chicago O'Hare Intl Airport from Northern Ireland in the past 72 hours is $538. The best round-trip flight deal from Northern Ireland to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $844.

The fastest flight from Northern Ireland to Chicago O'Hare Intl Airport takes 16h 15m

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

Frequently asked questions about flying from Northern Ireland to Chicago O'Hare Intl Airport

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.

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Rosemont

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Orland Park

Joliet

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Janesville

Elgin

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Skokie

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.