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Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £403

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
23 7月 — 30 7月1
1 adult

Cheap flight deals from Northern Ireland to O'Hare Intl

Keep the following information in mind while searching for Northern Ireland to O'Hare Intl flight deals. Data was last updated 18 7月 2025.

Round-trip from

£466

One-way from

£403

Popular in

August

Cheapest in

September

Average price

£627
15/9-23/9
  • 15/9-23/9
  • 4 total stops
  • 63h 10m total
  • Northern Ireland to Chicago
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13/8
  • 13/8
  • 2 total stops
  • 41h 17m total
  • Northern Ireland to Chicago
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Northern Ireland to O'Hare Intl

Cheapest flights from Northern Ireland to O'Hare Intl
Explore the most affordable flight options available from Northern Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 7月 2025.

週一 15/907:00BFS - ORD
2 stops41h 15mMultiple Airlines
週二 23/919:25ORD - BFS
2 stops21h 55mMultiple Airlines
Deal found 17/7£466
週二 16/916:25BHD - ORD
1 stop27h 25mAmerican Airlines
週三 24/922:35ORD - BHD
1 stop11h 00mAmerican Airlines
Deal found 17/7£521
週日 14/918:05BHD - ORD
1 stop23h 45mBritish Airways
週二 23/922:35ORD - BHD
1 stop12h 55mBritish Airways
Deal found 17/7£523
週一 15/906:30BHD - ORD
1 stop14h 10mDelta
週二 23/917:00ORD - BHD
2 stops22h 15mDelta
Deal found 17/7£525
週一 15/906:30BHD - ORD
1 stop14h 10mKLM
週一 22/916:40ORD - BHD
1 stop22h 35mKLM
Deal found 17/7£526
週日 14/906:30BHD - ORD
2 stops14h 30mMultiple Airlines
週三 24/916:40ORD - BHD
1 stop18h 15mMultiple Airlines
Deal found 17/7£583
週一 15/906:40BHD - ORD
2 stops20h 03mIberia
週一 22/913:59ORD - BHD
2 stops24h 46mIberia
Deal found 17/7£669
週二 16/910:20BHD - ORD
2 stops14h 40mAer Lingus
週三 24/915:45ORD - BHD
2 stops14h 10mAer Lingus
Deal found 17/7£805
週二 29/706:30BHD - ORD
2 stops21h 13mVirgin Atlantic
週六 2/817:20ORD - BHD
2 stops45h 55mVirgin Atlantic
Deal found 17/7£1,226

Cheapflights Fare Finder

Customise your flight search to find flights from Northern Ireland to O'Hare Intl 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 18 7月 2025.
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

Northern Ireland

Fly to

O'Hare Intl

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

週一 15/9

07:00-18:15

2 stops41h 15m

Chicago O'Hare Intl

週二 23/9

19:25-23:20

2 stops21h 55m

£466

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週二 16/9

16:25-13:50

1 stop27h 25m

Chicago O'Hare Intl

週三 24/9

22:35-15:35

1 stop11h 00m

£521

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週日 14/9

18:05-11:50

1 stop23h 45m

Chicago O'Hare Intl

週二 23/9

22:35-17:30

1 stop12h 55m

£523

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週一 15/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

週二 23/9

17:00-21:15

2 stops22h 15m

£525

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週一 15/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

週一 22/9

16:40-21:15

1 stop22h 35m

£526

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週日 14/9

06:30-15:00

2 stops14h 30m

Chicago O'Hare Intl

週三 24/9

16:40-16:55

1 stop18h 15m

£583

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週一 15/9

06:40-20:43

2 stops20h 03m

Chicago O'Hare Intl

週一 22/9

13:59-20:45

2 stops24h 46m

£669

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週二 16/9

10:20-19:00

2 stops14h 40m

Chicago O'Hare Intl

週三 24/9

15:45-11:55

2 stops14h 10m

£805

BelfastChicago

BHD - ORD

BHDORD

Belfast City

週二 29/7

06:30-21:43

2 stops21h 13m

Chicago O'Hare Intl

週六 2/8

17:20-21:15

2 stops45h 55m

£1,226

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

週三 13/8

22:05-09:22

2 stops41h 17m

£403

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 16 results
1
2

Best time to book a flight from Northern Ireland to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 18 7月 2025.
Read reviews from past customers who have flown with Delta, KLM, andFinnair from Northern Ireland to Chicago O'Hare Intl Airport. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,958 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,374 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to O'Hare Intl. 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 O'Hare Intl Airport one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £519. Users have also found prices from £812 and £1,165 on British Airways and Finnair, respectively.

  • Can I find deals for flights from Northern Ireland to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to O'Hare Intl?

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

  • Can I find deals for business class flights from Northern Ireland to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Northern Ireland to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Chicago O'Hare Intl Airport (average of £595). Flying from Northern Ireland to Chicago O'Hare Intl Airport 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Downers Grove
Elk Grove Village
Rosemont

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Alternative routes for Northern Ireland to O'Hare Intl

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
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Manchester to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Manchester to Midway flights
London City to Midway flights
Newcastle upon Tyne to O'Hare Intl flights
Birmingham to O'Hare Intl flights
Edinburgh to Midway flights
Birmingham to Midway flights
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Southend to O'Hare Intl flights
Cardiff to Midway flights
Belfast City to O'Hare Intl flights
Liverpool to O'Hare Intl flights
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Darlington to Midway flights
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Norwich to O'Hare Intl flights

Top airline flying from Northern Ireland to O'Hare Intl

Discover the top airline that operate flights from Northern Ireland to O'Hare Intl. 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 18 7月 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£484Average£626FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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How does Cheapflights help users find flights from Northern Ireland to O'Hare Intl?

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Millions of users choose and trust Cheapflights to book the best flight deals from Northern Ireland to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Northern Ireland to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Northern Ireland to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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