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Cheap flights from Chicago to Belfast from £222

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 14/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
21:15 - 17:40
ORD
-
BHD
14h 25m
1 stop
British Airways Logo
09:35 - 23:12
BHD
-
ORD
19h 37m
2 stops
£632British Airways
Sun, 16 Aug - Thu, 20 Aug
Multiple Airlines Logo
17:10 - 23:25
ORD
-
BFS
24h 15m
2 stops
Multiple Airlines Logo
06:20 - 18:15
BFS
-
ORD
17h 55m
3 stops
£649Multiple Airlines
Sat, 9 May - Sat, 16 May
British Airways Logo
12:35 - 20:35
ORD
-
BHD
26h 00m
2 stops
British Airways Logo
19:35 - 15:22
BHD
-
ORD
25h 47m
2 stops
£650British Airways
Sun, 2 Aug - Mon, 31 Aug
Multiple Airlines Logo
16:20 - 16:55
ORD
-
BHD
18h 35m
1 stop
Multiple Airlines Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
£657Multiple Airlines
Sun, 2 Aug - Mon, 31 Aug
American Airlines Logo
21:15 - 17:40
ORD
-
BHD
14h 25m
1 stop
American Airlines Logo
06:30 - 15:00
BHD
-
ORD
14h 30m
1 stop
£658American Airlines
Sun, 16 Aug - Thu, 20 Aug
KLM Logo
19:17 - 16:55
ORD
-
BHD
15h 38m
2 stops
KLM Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
£660KLM
Sun, 2 Aug - Mon, 31 Aug
British Airways Logo
17:15 - 14:35
ORD
-
BHD
15h 20m
2 stops
British Airways Logo
09:35 - 12:16
BHD
-
ORD
32h 41m
2 stops
£661British Airways
Sun, 16 Aug - Thu, 20 Aug
American Airlines Logo
20:45 - 17:40
ORD
-
BHD
14h 55m
1 stop
American Airlines Logo
16:15 - 12:30
BHD
-
ORD
26h 15m
1 stop
£806American Airlines
Sun, 19 Jul - Sat, 25 Jul
Delta Logo
09:49 - 09:20
MDW
-
BHD
17h 31m
2 stops
Delta Logo
09:50 - 21:46
BHD
-
MDW
17h 56m
2 stops
£837Delta
Sun, 2 Aug - Mon, 31 Aug
KLM Logo
13:00 - 09:20
MDW
-
BHD
14h 20m
2 stops
KLM Logo
09:50 - 21:46
BHD
-
MDW
17h 56m
2 stops
£1,651KLM
Sun, 16 Aug - Thu, 20 Aug

KLM flights from Chicago to Belfast

Our best KLM deals on Chicago to Belfast flight tickets
KLM
2 Aug
ORD19:17Chicago O'Hare Intl
15h 38m
2 stops
BHD16:55Belfast City
31 Aug
BHD17:30Belfast City
26h 45m
1 stop
ORD14:15Chicago O'Hare Intl
£660
KLM
16 Aug
MDW13:00Chicago Midway
14h 20m
2 stops
BHD09:20Belfast City
20 Aug
BHD09:50Belfast City
17h 56m
2 stops
MDW21:46Chicago Midway
£1,651
KLM
20 Jul
MDW13:16Chicago Midway
14h 04m
2 stops
BHD09:20Belfast City
27 Jul
BHD09:50Belfast City
18h 25m
2 stops
MDW22:15Chicago Midway
£2,596

British Airways flights from Chicago to Belfast

Our best British Airways deals on Chicago to Belfast flight tickets
British Airways
11 Aug
ORD19:05Chicago O'Hare Intl
14h 15m
1 stop
BHD15:20Belfast City
19 Aug
BHD10:05Belfast City
19h 07m
2 stops
ORD23:12Chicago O'Hare Intl
£632
British Airways
11 Aug
ORD16:16Chicago O'Hare Intl
17h 04m
2 stops
BHD15:20Belfast City
19 Aug
BHD10:05Belfast City
19h 07m
2 stops
ORD23:12Chicago O'Hare Intl
£635
British Airways
11 Aug
ORD19:05Chicago O'Hare Intl
14h 15m
1 stop
BHD15:20Belfast City
19 Aug
BHD20:35Belfast City
21h 55m
1 stop
ORD12:30Chicago O'Hare Intl
£639

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 25 March 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

Sun 16/8

21:15-17:40

1 stop14h 25m

Belfast City

Thu 20/8

09:35-23:12

2 stops19h 37m

£632

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 9/5

17:10-23:25

2 stops24h 15m

Belfast Intl

Sat 16/5

06:20-18:15

3 stops17h 55m

£649

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 2/8

12:35-20:35

2 stops26h 00m

Belfast City

Mon 31/8

19:35-15:22

2 stops25h 47m

£650

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 2/8

16:20-16:55

1 stop18h 35m

Belfast City

Mon 31/8

17:30-14:15

1 stop26h 45m

£657
Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 16/8

21:15-17:40

1 stop14h 25m

Belfast City

Thu 20/8

06:30-15:00

1 stop14h 30m

£658

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 2/8

19:17-16:55

2 stops15h 38m

Belfast City

Mon 31/8

17:30-14:15

1 stop26h 45m

£660

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 16/8

17:15-14:35

2 stops15h 20m

Belfast City

Thu 20/8

09:35-12:16

2 stops32h 41m

£661

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 19/7

20:45-17:40

1 stop14h 55m

Belfast City

Sat 25/7

16:15-12:30

1 stop26h 15m

£806

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 2/8

09:49-09:20

2 stops17h 31m

Belfast City

Mon 31/8

09:50-21:46

2 stops17h 56m

£837

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 16/8

13:00-09:20

2 stops14h 20m

Belfast City

Thu 20/8

09:50-21:46

2 stops17h 56m

£1,651

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 Aer Lingus 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.
Search flight deals

  • 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