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Cheap flights from Illinois to Belfast from £252

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Belfast departing on 13/11. 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

Find the cheapest flights from Illinois to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:25 - 16:50ORD  Chicago O'Hare Intl-BHD Belfast City
15h 25m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
07:00 - 12:35BHD  Belfast City-ORD Chicago O'Hare Intl
35h 35m2 stops London Gatwick Zurich
£640Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
British Airways Logo
17:10 - 10:45ORD  Chicago O'Hare Intl-BHD Belfast City
11h 35m1 stop London Heathrow
British Airways Logo
07:40 - 13:45BHD  Belfast City-ORD Chicago O'Hare Intl
12h 05m1 stop London Heathrow
£662British Airways
Sun, 15 Nov - Thu, 19 Nov
Multiple Airlines Logo
19:25 - 15:30ORD  Chicago O'Hare Intl-BHD Belfast City
14h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
07:00 - 21:25BHD  Belfast City-ORD Chicago O'Hare Intl
20h 25m2 stops Manchester Reykjavik Keflavik Intl
£666Multiple Airlines
Wed, 30 Sep - Wed, 7 Oct
British Airways Logo
19:05 - 12:55ORD  Chicago O'Hare Intl-BHD Belfast City
11h 50m1 stop London Heathrow
British Airways Logo
19:35 - 18:15BHD  Belfast City-ORD Chicago O'Hare Intl
28h 40m1 stop London Heathrow
£676British Airways
Mon, 28 Sep - Mon, 5 Oct
British Airways Logo
21:15 - 14:35ORD  Chicago O'Hare Intl-BHD Belfast City
11h 20m1 stop London Heathrow
British Airways Logo
06:30 - 13:50BHD  Belfast City-ORD Chicago O'Hare Intl
13h 20m1 stop London Heathrow
£686British Airways
Sun, 4 Oct - Wed, 14 Oct
British Airways Logo
10:11 - 08:50ORD  Chicago O'Hare Intl-BHD Belfast City
16h 39m2 stops Newark London Heathrow
British Airways Logo
19:35 - 13:50BHD  Belfast City-ORD Chicago O'Hare Intl
24h 15m1 stop London Heathrow
£688British Airways
Mon, 28 Sep - Mon, 5 Oct
American Airlines Logo
22:25 - 18:45ORD  Chicago O'Hare Intl-BHD Belfast City
14h 20m1 stop London Heathrow
American Airlines Logo
06:30 - 12:30BHD  Belfast City-ORD Chicago O'Hare Intl
12h 00m1 stop London Heathrow
£695American Airlines
Wed, 30 Sep - Wed, 7 Oct
Multiple Airlines Logo
07:25 - 13:40ORD  Chicago O'Hare Intl-BHD Belfast City
24h 15m3 stops Toronto Island Ottawa London Gatwick
Multiple Airlines Logo
07:00 - 20:41BHD  Belfast City-ORD Chicago O'Hare Intl
43h 41m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Island
£696Multiple Airlines
Fri, 18 Sep - Sun, 20 Sep
American Airlines Logo
20:50 - 14:35ORD  Chicago O'Hare Intl-BHD Belfast City
11h 45m1 stop London Heathrow
American Airlines Logo
06:30 - 16:50BHD  Belfast City-ORD Chicago O'Hare Intl
16h 20m2 stops London Heathrow New York John F Kennedy Intl
£701American Airlines
Sun, 4 Oct - Wed, 14 Oct
American Airlines Logo
17:55 - 12:00ORD  Chicago O'Hare Intl-BHD Belfast City
12h 05m1 stop London Heathrow
American Airlines Logo
06:30 - 16:50BHD  Belfast City-ORD Chicago O'Hare Intl
16h 20m2 stops London Heathrow New York John F Kennedy Intl
£703American Airlines
Wed, 30 Sep - Wed, 7 Oct

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British Airways flights from Illinois to Belfast City Airport

Our best British Airways deals on Illinois to Belfast City Airport flight tickets
British Airways
15 Nov
ORD17:10Chicago O'Hare Intl
11h 35m
1 stop
BHD10:45Belfast City
19 Nov
BHD07:40Belfast City
12h 05m
1 stop
ORD13:45Chicago O'Hare Intl
£662
British Airways
4 Oct
ORD21:15Chicago O'Hare Intl
11h 20m
1 stop
BHD14:35Belfast City
14 Oct
BHD06:30Belfast City
13h 20m
1 stop
ORD13:50Chicago O'Hare Intl
£686
British Airways
28 Sept
ORD10:11Chicago O'Hare Intl
16h 39m
2 stops
BHD08:50Belfast City
5 Oct
BHD19:35Belfast City
24h 15m
1 stop
ORD13:50Chicago O'Hare Intl
£688

Delta flights from Illinois to Belfast City Airport

Our best Delta deals on Illinois to Belfast City Airport flight tickets
Delta
23 Nov
ORD16:25Chicago O'Hare Intl
10h 45m
1 stop
BHD09:10Belfast City
2 Dec
BHD17:20Belfast City
27h 05m
1 stop
ORD14:25Chicago O'Hare Intl
£669
Delta
23 Nov
ORD08:45Chicago O'Hare Intl
18h 25m
2 stops
BHD09:10Belfast City
2 Dec
BHD17:20Belfast City
27h 05m
1 stop
ORD14:25Chicago O'Hare Intl
£672
Delta
23 Nov
ORD16:25Chicago O'Hare Intl
18h 25m
1 stop
BHD16:50Belfast City
27 Nov
BHD09:40Belfast City
16h 45m
2 stops
ORD20:25Chicago O'Hare Intl
£676

momondo Fare Finder

 
Customise your flight search to find flights from Illinois to Belfast City Airport 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 17 August 2026.
Use the filters below to find and compare flights from Illinois to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 28/9

19:25-16:50

2 stops15h 25m

Belfast City

Mon 5/10

07:00-12:35

2 stops35h 35m

£640
Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 15/11

17:10-10:45

1 stop11h 35m

Belfast City

Thu 19/11

07:40-13:45

1 stop12h 05m

£662

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 30/9

19:25-15:30

2 stops14h 05m

Belfast City

Wed 7/10

07:00-21:25

2 stops20h 25m

£666

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 28/9

19:05-12:55

1 stop11h 50m

Belfast City

Mon 5/10

19:35-18:15

1 stop28h 40m

£676

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 4/10

21:15-14:35

1 stop11h 20m

Belfast City

Wed 14/10

06:30-13:50

1 stop13h 20m

£686

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 28/9

10:11-08:50

2 stops16h 39m

Belfast City

Mon 5/10

19:35-13:50

1 stop24h 15m

£688

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 30/9

22:25-18:45

1 stop14h 20m

Belfast City

Wed 7/10

06:30-12:30

1 stop12h 00m

£695

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Fri 18/9

07:25-13:40

3 stops24h 15m

Belfast City

Sun 20/9

07:00-20:41

3 stops43h 41m

£696

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 4/10

20:50-14:35

1 stop11h 45m

Belfast City

Wed 14/10

06:30-16:50

2 stops16h 20m

£701

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 30/9

17:55-12:00

1 stop12h 05m

Belfast City

Wed 7/10

06:30-16:50

2 stops16h 20m

£702

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 Illinois to Belfast City Airport

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 Illinois to Belfast City?

British Airways, KLM, and Aer Lingus are the most popular carriers operating from Illinois to Belfast City

Cheap Illinois to Belfast City Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Belfast City Airport

Best price found

£252

Fastest flight time

11h 20m

Direct flights

None
The best one-way flight to Belfast City Airport from Illinois in the past 72 hours is £252. The best return flight deal from Illinois to Belfast City Airport found on momondo in the last 72 hours is £640.
The fastest flight from Illinois to Belfast City Airport takes 11h 20m
There are no direct flights from Illinois to Belfast City Airport. There are no popular flight routes from Illinois to Belfast City Airport.
Search flight deals

Frequently asked questions about flying from Illinois to Belfast City Airport

  • When did momondo last update prices for flights from Illinois to Belfast City Airport?

    Prices for flights from Illinois to Belfast City Airport were last updated today.

  • How old do you have to be to fly from Illinois to Belfast City Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Belfast City Airport.

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

    The travel and health documents you'll need for your trip to Belfast City Airport 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 City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newcastle
Bangor
Carrickfergus

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Illinois.

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

Flights from Illinois to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Illinois.

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

Yes. momondo can track prices for Illinois 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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