How long is the flight from Belfast to Chicago?

There are many flights that can get you from Belfast to Chicago in 13h 50m. Fly via British Airways to get the fastest option. Belfast and Chicago are separated by a distance of 3644 mi.

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.

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).

What is the cheapest time of day to fly from BFS to CHI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to Chicago as you normally would.

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.

£617+ Cheap Flights from Belfast to Chicago

Cheap flight deals from Belfast to Chicago

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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 27 August 2026.

Wed 7/1006:10 -

2 stops21h 15m

Wed 14/1019:25 -

2 stops19h 05m

Deal found 23/8£617

Sat 10/1010:10 -

2 stops36h 00m

Sat 17/1019:15 -

2 stops21h 00m

Deal found 26/8£618

Wed 14/1006:15 -

2 stops21h 10m

Sun 18/1019:25 -

2 stops18h 50m

Deal found 25/8£619

Thu 5/1107:40 -

1 stop12h 05m

Mon 9/1118:35 -

1 stop15h 30m

Deal found 26/8£705

Thu 8/1006:35 -

2 stops33h 05m

Thu 15/1011:25 -

2 stops21h 55m

Deal found 23/8£709

Thu 3/907:00 -

2 stops16h 01m

Mon 7/918:41 -

2 stops18h 04m

Deal found 26/8£778

Wed 9/906:30 -

1 stop11h 55m

Sun 13/922:25 -

1 stop28h 25m

Deal found 23/8£828

Sat 12/907:05 -

1 stop13h 50m

Wed 16/917:00 -

1 stop19h 45m

Deal found 27/8£1,150

Find flight deals from Belfast to Chicago

Round-trip from	£617

7/10-14/10
4 total stops
40h 20m total
Belfast to Chicago

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 7/10

06:10-21:25

2 stops21h 15m

Chicago O'Hare Intl

Wed 14/10

19:25-20:30

2 stops19h 05m

£617

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Sat 10/10

10:10-16:10

2 stops36h 00m

Chicago O'Hare Intl

Sat 17/10

19:15-22:15

2 stops21h 00m

£618

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 14/10

06:15-21:25

2 stops21h 10m

Chicago O'Hare Intl

Sun 18/10

19:25-20:15

2 stops18h 50m

£619

Fastest return journey

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 5/11

07:40-15:30

1 stop13h 50m

Chicago O'Hare Intl

Mon 9/11

18:49-16:05

2 stops15h 16m

£705

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Thu 8/10

06:35-09:40

2 stops33h 05m

Chicago O'Hare Intl

Thu 15/10

11:25-15:20

2 stops21h 55m

£709

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sat 12/9

07:05-14:55

1 stop13h 50m

Chicago O'Hare Intl

Wed 16/9

17:00-18:45

1 stop19h 45m

£1,150

Flights are sorted by cheapest return flights first.

Deals found on 23/8

Sorted by cheapest first

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.

BF1-CHI

BFS-ORD

BHD-ORD

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

BF1-CHI

BFS-ORD

BHD-ORD

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Belfast to Chicago?
There are many flights that can get you from Belfast to Chicago in 13h 50m. Fly via British Airways to get the fastest option. Belfast and Chicago are separated by a distance of 3644 mi.
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.

See more FAQs

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Belfast City to O'Hare Intl flights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chicago from Belfast today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast 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 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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Cheap flights from Belfast to Chicago from £617

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast to Chicago

Cheapest flights from Belfast to ChicagoExplore 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 27 August 2026.

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 27 August 2026.

Best flights from Belfast to ChicagoDiscover carefully curated flight deals from Belfast to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 August 2026.

Discover carefully curated flight deals from Belfast to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 August 2026.

Last-minute flights from Belfast to ChicagoDiscover last-minute flight deals from Belfast to Chicago. Data last updated 27 August 2026 and is based on user searches.

Discover last-minute flight deals from Belfast to Chicago. Data last updated 27 August 2026 and is based on user searches.

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Use the filters below to find and compare flights from Belfast to Chicago that are best for you.

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.

Cheapflights Insights

Related info for your journey

How long is the flight from Belfast to Chicago?

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

How can I find direct flights from Belfast to Chicago?

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

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.

Other flights to Chicago

Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 August 2026.

Complete your trip

Complete your trip to Chicago by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Illinois

Book a non-stop flight to one of these other cities located in Illinois.

Search flights from Belfast to Chicago by cabin class

Find flights from Belfast to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Belfast and Chicago flights

Browse other Belfast and Chicago flight options. Last updated on 27 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 27 August 2026.

Best flights from Belfast to Chicago
Discover carefully curated flight deals from Belfast to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 August 2026.

Last-minute flights from Belfast to Chicago
Discover last-minute flight deals from Belfast to Chicago. Data last updated 27 August 2026 and is based on user searches.