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$306+ Cheap flights from Northern Ireland to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — CHI
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
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Cheap flight deals from Northern Ireland to Chicago

Keep the following information in mind while searching for Northern Ireland to Chicago flight deals. Data was last updated April 25, 2025.

Round-trip from

$691
(KLM)

One-way from

$306
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$995
From Northern Ireland to Chicago (CHI)
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One-way flight from Northern Ireland to Chicago (CHI)
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Highest demand for flights based on searches. 26% potential increase in price ($343 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($71 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Northern Ireland to Chicago

Cheapest flights from Northern Ireland to Chicago
Explore the most affordable flight options available from Northern Ireland to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

This KLM deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:25 pmBHD - ORD
1 stop26h 45mKLM
Sun 5/117:25 pmORD - BHD
2 stops15h 30mKLM
Deal found 4/24$691
This Mytrip deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/166:10 amBFS - ORD
2 stops21h 46mMultiple Airlines
Mon 6/238:40 amORD - BFS
3 stops31h 50mMultiple Airlines
Deal found 4/24$771
This British Airways deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/77:05 amBHD - ORD
2 stops15h 13mBritish Airways
Sat 6/145:45 pmORD - BHD
1 stop12h 30mBritish Airways
Deal found 4/25$850
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/77:05 amBHD - ORD
1 stop17h 10mAmerican Airlines
Sat 6/145:45 pmORD - BHD
1 stop12h 30mAmerican Airlines
Deal found 4/24$960
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:30 amBHD - ORD
2 stops18h 44mDelta
Sat 6/143:55 pmORD - BHD
2 stops23h 20mDelta
Deal found 4/24$1,070

Cheapflights Fare Finder

Customize 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, Cheapflights users made 2,558,603 searches. Data last updated April 25, 2025.
Use the filters below to find and compare flights from Northern Ireland to Chicago that are best for you.

Fly from

Northern Ireland

Fly to

Chicago

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 5/7

5:25 pm-2:10 pm

1 stop26h 45m

Chicago O'Hare Intl

Sun 5/11

7:25 pm-4:55 pm

2 stops15h 30m

$691

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 6/16

6:10 am-9:56 pm

2 stops21h 46m

Chicago O'Hare Intl

Mon 6/23

8:40 am-10:30 pm

3 stops31h 50m

$771

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 6/7

7:05 am-4:18 pm

2 stops15h 13m

Chicago O'Hare Intl

Sat 6/14

5:45 pm-12:15 pm

1 stop12h 30m

$850

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 6/7

7:05 am-6:15 pm

1 stop17h 10m

Chicago O'Hare Intl

Sat 6/14

5:45 pm-12:15 pm

1 stop12h 30m

$960

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 6/7

6:30 am-7:14 pm

2 stops18h 44m

Chicago O'Hare Intl

Sat 6/14

3:55 pm-9:15 pm

2 stops23h 20m

$1,070

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 6/6

10:55 am-6:32 am

2 stops25h 37m

$306

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 6/9

11:00 am-6:32 am

3 stops25h 32m

$395

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 5/16

10:20 am-7:00 pm

2 stops14h 40m

$806

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 6/9

6:40 am-6:15 pm

1 stop17h 35m

$901

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 6/8

6:50 am-1:50 pm

1 stop13h 00m

$1,283

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 11 results
1
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Best time to book a flight from Northern Ireland to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Northern Ireland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Chicago

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated April 25, 2025.
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Aer Lingus
7.0
Good
1,070 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Iberia
7.0
Good
2,686 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Northern Ireland to Chicago one-way?

    The cheapest airlines for a one-way flight from Northern Ireland to Chicago are Aer Lingus ($806), British Airways ($901), and Iberia ($1,283).

  • Can I find deals for flights from Northern Ireland to Chicago that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Chicago.

  • Can I find deals for business class flights from Northern Ireland to Chicago?

    Yes. Cheapflights offers flight deals from Northern Ireland to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Northern Ireland to Chicago?

    Currently, August is the cheapest month in which you can book a flight from Northern Ireland to Chicago (average of $245). Flying from Northern Ireland to Chicago in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Northern Ireland?

Book flights to Northern Ireland if you plan to visit one of these locations
Merrillville
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Northern Ireland to Chicago

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