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Cheap flights from Belfast Intl Airport to Chicago O'Hare Intl Airport from £318

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
8 Feb — 15 Feb1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Belfast Intl to O'Hare Intl

Enter your travel dates to find the best prices.

One-way flights from Belfast Intl to O'Hare Intl
Search for one-way flight options from Belfast Intl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 9 January 2026.

Thu 14/514:00BFS - ORD
3 stops33h 50mMultiple Airlines
Deal found 7/1£318
Wed 13/507:00BFS - ORD
3 stops37h 15mMultiple Airlines
Deal found 7/1£320
Sun 17/522:00BFS - ORD
3 stops26h 15mMultiple Airlines
Deal found 7/1£335
Fri 15/517:05BFS - ORD
3 stops30h 45mMultiple Airlines
Deal found 7/1£338
Sat 16/507:15BFS - ORD
3 stops17h 00mMultiple Airlines
Deal found 7/1£359

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl 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 9 January 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Belfast Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 14/5

14:00-17:50

3 stops33h 50m

£318

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 17/5

22:00-18:15

3 stops26h 15m

£335

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 15/5

17:05-17:50

3 stops30h 45m

£338

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 16/5

07:15-18:15

3 stops17h 00m

£359

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 13/5

16:20-14:15

2 stops27h 55m

£364

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Best time to book a flight from Belfast Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Belfast Intl 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.

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 9 January 2026.
Get a feel of what it's like to fly with British Airways from Belfast Intl Airport to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,659 reviews
Check prices

Comfort

6.7

Entertainment

6.4

Food

6.4

Boarding

6.9

Crew

7.6

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,659 reviews
British Airways
6.7
Okay
7,659 reviews
Check prices

Comfort

6.7

Entertainment

6.4

Food

6.4

Boarding

6.9

Crew

7.6

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl 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 is the cheapest airline to fly from Belfast Intl Airport to Chicago O'Hare Intl Airport round-trip?

    Flying on British Airways is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at £483.

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

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

  • How can I find direct flights from Belfast Intl 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 Belfast Intl to O'Hare Intl.

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

    Yes. Cheapflights offers flight deals from Belfast Intl 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.

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
Elk Grove Village

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Alternative routes for Belfast Intl to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Belfast City to O'Hare Intl flights

Top airline flying from Belfast Intl to O'Hare Intl

Discover the top airline that operate flights from Belfast Intl 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 9 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£483Average£574FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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When you search for this flight from Belfast Intl to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to O'Hare Intl, users can toggle the no change fees filter when performing a flight search.

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

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