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Cheap flights from Chicago to Belfast from £237

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Belfast departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Chicago to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
17:10 - 10:30
ORD
-
BHD
11h 20m
1 stop
British Airways Logo
17:45 - 13:50
BHD
-
ORD
26h 05m
1 stop
£651British Airways
Tue, 3 Nov - Mon, 23 Nov
British Airways Logo
21:15 - 15:30
ORD
-
BHD
12h 15m
1 stop
British Airways Logo
18:30 - 13:50
BHD
-
ORD
25h 20m
1 stop
£684British Airways
Thu, 8 Oct - Mon, 12 Oct
British Airways Logo
17:10 - 10:20
ORD
-
BHD
11h 10m
1 stop
British Airways Logo
12:25 - 18:45
BHD
-
ORD
12h 20m
1 stop
£688British Airways
Thu, 5 Nov - Wed, 25 Nov
British Airways Logo
19:05 - 15:30
ORD
-
BHD
14h 25m
1 stop
British Airways Logo
19:35 - 16:13
BHD
-
ORD
26h 38m
2 stops
£704British Airways
Thu, 8 Oct - Mon, 12 Oct
Multiple Airlines Logo
09:55 - 16:30
ORD
-
BFS
24h 35m
2 stops
Multiple Airlines Logo
21:10 - 20:16
BFS
-
ORD
29h 06m
3 stops
£791Multiple Airlines
Fri, 5 Jun - Thu, 11 Jun
Multiple Airlines Logo
14:15 - 16:30
ORD
-
BFS
20h 15m
2 stops
Multiple Airlines Logo
06:10 - 09:00
BFS
-
ORD
32h 50m
3 stops
£792Multiple Airlines
Fri, 5 Jun - Thu, 11 Jun
KLM Logo
12:30 - 09:10
MDW
-
BHD
14h 40m
2 stops
KLM Logo
17:20 - 16:25
BHD
-
MDW
29h 05m
2 stops
£803KLM
Thu, 5 Nov - Mon, 23 Nov
KLM Logo
12:30 - 09:10
MDW
-
BHD
14h 40m
2 stops
KLM Logo
17:20 - 16:25
BHD
-
MDW
29h 05m
2 stops
£915KLM
Fri, 6 Nov - Mon, 23 Nov
Delta Logo
09:54 - 09:20
MDW
-
BHD
17h 26m
2 stops
Delta Logo
09:50 - 22:15
BHD
-
MDW
18h 25m
2 stops
£2,060Delta
Thu, 2 Jul - Sat, 11 Jul
Delta Logo
17:25 - 16:55
MDW
-
BHD
17h 30m
2 stops
Delta Logo
09:45 - 21:46
BHD
-
MDW
18h 01m
2 stops
£2,664Delta
Thu, 1 Oct - Sun, 4 Oct

American Airlines flights from Chicago to Belfast

Our best American Airlines deals on Chicago to Belfast flight tickets
American Airlines
6 Nov
ORD20:40Chicago O'Hare Intl
11h 35m
1 stop
BHD14:15Belfast City
22 Nov
BHD06:30Belfast City
16h 35m
1 stop
ORD17:05Chicago O'Hare Intl
£723
American Airlines
6 Nov
ORD13:04Chicago O'Hare Intl
15h 26m
2 stops
BHD10:30Belfast City
22 Nov
BHD06:30Belfast City
16h 35m
1 stop
ORD17:05Chicago O'Hare Intl
£726
American Airlines
6 Nov
ORD14:03Chicago O'Hare Intl
14h 27m
2 stops
BHD10:30Belfast City
22 Nov
BHD06:30Belfast City
17h 11m
2 stops
ORD17:41Chicago O'Hare Intl
£733

British Airways flights from Chicago to Belfast

Our best British Airways deals on Chicago to Belfast flight tickets
British Airways
3 Nov
ORD17:10Chicago O'Hare Intl
11h 20m
1 stop
BHD10:30Belfast City
23 Nov
BHD17:45Belfast City
26h 05m
1 stop
ORD13:50Chicago O'Hare Intl
£651
British Airways
8 Oct
ORD21:15Chicago O'Hare Intl
12h 15m
1 stop
BHD15:30Belfast City
12 Oct
BHD18:30Belfast City
25h 20m
1 stop
ORD13:50Chicago O'Hare Intl
£684
British Airways
5 Nov
ORD17:10Chicago O'Hare Intl
11h 10m
1 stop
BHD10:20Belfast City
25 Nov
BHD12:25Belfast City
12h 20m
1 stop
ORD18:45Chicago O'Hare Intl
£688

momondo Fare Finder

 
Customise your flight search to find flights from Chicago to Belfast 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, momondo users made 279,928 searches. Data last updated 10 May 2026.
Use the filters below to find and compare flights from Chicago to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 3/11

17:10-10:30

1 stop11h 20m

Belfast City

Mon 23/11

17:45-13:50

1 stop26h 05m

£651

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 8/10

21:15-15:30

1 stop12h 15m

Belfast City

Mon 12/10

18:30-13:50

1 stop25h 20m

£684
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 5/11

17:10-10:20

1 stop11h 10m

Belfast City

Wed 25/11

12:25-18:45

1 stop12h 20m

£688

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 8/10

19:05-15:30

1 stop14h 25m

Belfast City

Mon 12/10

19:35-16:13

2 stops26h 38m

£704

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 5/6

09:55-16:30

2 stops24h 35m

Belfast Intl

Thu 11/6

21:10-20:16

3 stops29h 06m

£791

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 5/6

14:15-16:30

2 stops20h 15m

Belfast Intl

Thu 11/6

06:10-09:00

3 stops32h 50m

£792

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 5/11

12:30-09:10

2 stops14h 40m

Belfast City

Mon 23/11

17:20-16:25

2 stops29h 05m

£803

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 6/11

12:30-09:10

2 stops14h 40m

Belfast City

Mon 23/11

17:20-16:25

2 stops29h 05m

£915

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 2/7

09:54-09:20

2 stops17h 26m

Belfast City

Sat 11/7

09:50-22:15

2 stops18h 25m

£2,060

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 1/10

17:25-16:55

2 stops17h 30m

Belfast City

Sun 4/10

09:45-21:46

2 stops18h 01m

£2,664

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Chicago to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Chicago to Belfast?

British Airways and Delta are the most popular carriers operating from Chicago to Belfast

Cheap Chicago to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Belfast

Fastest flight time

11h 20m

Direct flights

None
The fastest flight from Chicago to Belfast takes 11h 20m
There are no direct flights from Chicago to Belfast. There are no popular flight routes from Chicago to Belfast.
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Frequently asked questions about flying from Chicago to Belfast

  • How far is Chicago to Belfast by plane?

    The distance between Chicago and Belfast is about 3636.7 mi. In terms of flight time, this usually takes a little over 11h 20m.

  • When did momondo last update prices for flights from Chicago to Belfast?

    Prices for flights from Chicago to Belfast were last updated today.

  • How old do you have to be to fly from Chicago to Belfast?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Belfast?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Belfast for you.

Can I find flights from Chicago to Belfast with flexible booking policies on momondo?

momondo does allow users to show only those flights to Belfast from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Belfast?

momondo helps you find the best flight between Chicago and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Belfast right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Belfast flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport