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Cheap flights from Belfast to Chicago from £371

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — CHI
2 Apr — 9 Apr1
1 adult

Cheap flight deals from Belfast to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 March 2025.

Round-trip from

£484

One-way from

£371

Popular in

March

Cheapest in

September

Average price

£1,233
British Airways
  • British Airways
  • 1/5-5/5
  • 2 total stops
  • 29h 20m total
  • Belfast to Chicago
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20/4
  • 20/4
  • 3 total stops
  • 53h 45m total
  • Belfast to Chicago
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£204 potential increase over avg. return price).
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Cheapest flight prices on average. 8% potential price decrease (£43 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from Belfast to Chicago

Cheapest flights from Belfast to Chicago
Explore the most affordable flight options available from Belfast to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Thu 1/506:35BHD - ORD
1 stop14h 10mBritish Airways
Mon 5/522:25ORD - BHD
1 stop15h 10mBritish Airways
Deal found 27/3£484
Sun 4/520:05BHD - ORD
1 stop21h 40mFinnair
Sun 11/517:40ORD - BHD
1 stop11h 50mFinnair
Deal found 27/3£499
Sun 4/506:30BHD - ORD
1 stop13h 40mDelta
Sun 11/519:25ORD - BHD
2 stops19h 50mDelta
Deal found 27/3£520
Thu 1/509:35BHD - ORD
1 stop13h 25mAmerican Airlines
Mon 5/517:40ORD - BHD
2 stops16h 00mAmerican Airlines
Deal found 27/3£526
Wed 7/521:05BFS - ORD
2 stops32h 24mMultiple Airlines
Wed 14/509:55ORD - BFS
2 stops18h 00mMultiple Airlines
Deal found 27/3£573
Sun 4/507:05BHD - ORD
3 stops30h 35mMultiple Airlines
Sun 11/507:47ORD - BHD
2 stops30h 38mMultiple Airlines
Deal found 27/3£652

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast 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 28 March 2025.
Use the filters below to find and compare flights from Belfast to Chicago that are best for you.

Fly from

Belfast

Fly to

Chicago

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/5

06:35-14:45

1 stop14h 10m

Chicago O'Hare Intl

Mon 5/5

22:25-19:35

1 stop15h 10m

£484

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 4/5

20:05-11:45

1 stop21h 40m

Chicago O'Hare Intl

Sun 11/5

17:40-11:30

1 stop11h 50m

£499

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 4/5

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Sun 11/5

19:25-21:15

2 stops19h 50m

£520

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/5

09:35-17:00

1 stop13h 25m

Chicago O'Hare Intl

Mon 5/5

17:40-15:40

2 stops16h 00m

£526

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 7/5

21:05-23:29

2 stops32h 24m

Chicago O'Hare Intl

Wed 14/5

09:55-09:55

2 stops18h 00m

£573

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 4/5

07:05-07:40

3 stops30h 35m

Chicago O'Hare Intl

Sun 11/5

07:47-20:25

2 stops30h 38m

£652

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 20/4

08:50-08:35

3 stops53h 45m

£371

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 20/4

14:25-08:35

3 stops48h 10m

£406

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 17/9

09:50-19:00

2 stops15h 10m

£496

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

06:30-14:10

1 stop13h 40m

£1,270

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 11 results
1
2

Best time to book a flight from Belfast to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Belfast 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 Belfast 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 28 March 2025.
Delta
8.0
Very Good
7,896 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

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
7,896 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

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
1,321 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

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
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

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
7,896 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

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
1,062 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

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 Belfast 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 flying from Belfast to Chicago round-trip?

    British Airways, at £484, was found to be the cheapest airline from Belfast to Chicago.Alternate airlines flying return to your destination include Finnair and Delta. These flights start at 34% lower than the current average price 3 months from now.

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

    £496 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on KLM and Delta, with prices starting from £1,270 and £1,273, respectively.

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

    Yes. In addition to deals on Belfast to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Chicago?

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

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

    Yes. Cheapflights offers flight deals from Belfast 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 Belfast to Chicago?

    Currently, January is the cheapest month in which you can book a flight from Belfast to Chicago (average of £595). Flying from Belfast 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 Belfast to Chicago

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

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast to Chicago?

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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 Belfast to Chicago.

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

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

Can Cheapflights notify me if prices for flights from Belfast 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!

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