Find flights
When to book
Airlines
FAQs

Cheap flights from Northern Ireland to Chicago from £612

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — CHI
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

£635

One-way from

£612

Popular in

March

Cheapest in

September

Average price

£742
British Airways
  • British Airways
  • 7/6-14/6
  • 2 total stops
  • 26h 10m total
  • Northern Ireland to Chicago
Search Deals
Aer Lingus
  • Aer Lingus
  • 16/5
  • 2 total stops
  • 18h 15m total
  • Northern Ireland to Chicago
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£190 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£40 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 30 April 2025.

Sat 7/607:05BHD - ORD
1 stop13h 40mBritish Airways
Sat 14/617:45ORD - BHD
1 stop12h 30mBritish Airways
Deal found 30/4£635
Sat 7/606:30BHD - ORD
2 stops18h 44mVirgin Atlantic
Sat 14/617:37ORD - BHD
2 stops21h 38mVirgin Atlantic
Deal found 30/4£641
Fri 13/606:05BFS - ORD
2 stops21h 10mMultiple Airlines
Fri 20/619:25ORD - BFS
2 stops18h 40mMultiple Airlines
Deal found 29/4£687
Sat 7/606:30BHD - ORD
2 stops18h 44mDelta
Sat 14/617:37ORD - BHD
2 stops21h 38mDelta
Deal found 29/4£711
Sat 7/607:05BHD - ORD
1 stop13h 40mAmerican Airlines
Sat 14/617:45ORD - BHD
1 stop10h 25mAmerican Airlines
Deal found 29/4£720

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 30 April 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

Sat 7/6

07:05-14:45

1 stop13h 40m

Chicago O'Hare Intl

Sat 14/6

17:45-12:15

1 stop12h 30m

£635

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 7/6

06:30-19:14

2 stops18h 44m

Chicago O'Hare Intl

Sat 14/6

17:37-21:15

2 stops21h 38m

£641

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 13/6

06:05-21:15

2 stops21h 10m

Chicago O'Hare Intl

Fri 20/6

19:25-20:05

2 stops18h 40m

£687

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 7/6

06:30-19:14

2 stops18h 44m

Chicago O'Hare Intl

Sat 14/6

17:37-21:15

2 stops21h 38m

£711

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 7/6

07:05-14:45

1 stop13h 40m

Chicago O'Hare Intl

Sat 14/6

17:45-10:10

1 stop10h 25m

£720

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

06:45-19:00

2 stops18h 15m

£612

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 4/8

14:30-21:15

3 stops36h 45m

£884

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

06:30-14:10

1 stop13h 40m

£1,263

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

06:30-14:10

1 stop13h 40m

£1,273

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 6/8

11:30-18:15

1 stop12h 45m

£2,203

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 11 results
1
2

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 return 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 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 30 April 2025.
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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
1,334 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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
Virgin Atlantic
7.4
Good
643 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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
7,936 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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
1,076 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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?

    One-way options have recently been found by users for as low as £612 on Aer Lingus. Other airlines that offer cheap prices include KLM from £1,263 and Delta from £1,273 one-way.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Northern Ireland to Chicago (average of £595). Flying from Northern Ireland to Chicago in July is currently the most expensive (average of £843). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to O'Hare Intl flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Heathrow to Midway flights
Heathrow to St. Louis flights
Edinburgh to O'Hare Intl flights
Stansted to O'Hare Intl flights
Gatwick to St. Louis flights
Luton to O'Hare Intl flights
Manchester to O'Hare Intl flights
Birmingham to O'Hare Intl flights
Manchester to Midway flights
London City to St. Louis flights
Edinburgh to Midway flights
Birmingham to Midway flights
Glasgow Intl to Midway flights
Glasgow Intl to O'Hare Intl flights
London City to Midway flights
Inverness to O'Hare Intl flights
Liverpool to O'Hare Intl flights
Newcastle upon Tyne to O'Hare Intl flights
Gatwick to Midway flights
Leeds to O'Hare Intl flights
Bristol to O'Hare Intl flights
Exeter to O'Hare Intl flights
Stansted to St. Louis flights
Southampton to Midway flights
Bristol to Midway flights
Manchester to St. Louis flights
Southampton to O'Hare Intl flights
Heathrow to Moline flights
Luton to St. Louis flights
Newcastle upon Tyne to Midway flights
Belfast Intl to O'Hare Intl flights
Leeds to Midway flights
Belfast City to O'Hare Intl flights
Cardiff to O'Hare Intl flights
Cardiff to Midway flights
Edinburgh to St. Louis flights
Heathrow to Peoria flights
Manchester to Moline flights
Gatwick to Evansville flights
Birmingham to St. Louis flights
Heathrow to Evansville flights
Heathrow to Dubuque flights
Liverpool to St. Louis flights
Leeds to St. Louis flights
Newcastle upon Tyne to St. Louis flights
Heathrow to Springfield flights
Manchester to Peoria flights

Top airline flying from Northern Ireland to Chicago

Discover the top airline that operate flights from Northern Ireland to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£484Average£590FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Northern Ireland to Chicago?

Cheapflights makes it easy to find Northern Ireland to Chicago flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Chicago?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to Chicago.

Can Cheapflights find flights from Northern Ireland to Chicago with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to Chicago flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Northern Ireland to Chicago become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights