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Cheap flights from Illinois to Belfast from $297

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 9/14. 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
0 bags

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Find the cheapest flights from Illinois to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
7:05 pm - 3:20 pm
ORD
-
BHD
14h 15m
1 stop
British Airways Logo
10:05 am - 11:12 pm
BHD
-
ORD
19h 07m
2 stops
$847British Airways
Tue, Aug 11 - Wed, Aug 19
British Airways Logo
4:16 pm - 3:20 pm
ORD
-
BHD
17h 04m
2 stops
British Airways Logo
10:05 am - 11:12 pm
BHD
-
ORD
19h 07m
2 stops
$851British Airways
Tue, Aug 11 - Wed, Aug 19
British Airways Logo
7:05 pm - 3:20 pm
ORD
-
BHD
14h 15m
1 stop
British Airways Logo
8:35 pm - 12:30 pm
BHD
-
ORD
21h 55m
1 stop
$856British Airways
Tue, Aug 11 - Wed, Aug 19
Multiple Airlines Logo
11:25 am - 8:30 pm
ORD
-
BHD
27h 05m
2 stops
Multiple Airlines Logo
7:00 am - 9:40 am
BHD
-
ORD
32h 40m
2 stops
$859Multiple Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
9:15 pm - 5:40 pm
ORD
-
BHD
14h 25m
1 stop
American Airlines Logo
6:30 am - 3:00 pm
BHD
-
ORD
14h 30m
1 stop
$882American Airlines
Sun, Aug 16 - Thu, Aug 20
British Airways Logo
7:05 pm - 3:20 pm
ORD
-
BHD
14h 15m
1 stop
British Airways Logo
8:25 pm - 4:17 pm
BHD
-
ORD
25h 52m
2 stops
$886British Airways
Tue, Aug 11 - Tue, Aug 18
British Airways Logo
5:15 pm - 3:20 pm
ORD
-
BHD
16h 05m
2 stops
British Airways Logo
8:25 pm - 4:17 pm
BHD
-
ORD
25h 52m
2 stops
$888British Airways
Tue, Aug 11 - Tue, Aug 18
KLM Logo
6:38 pm - 4:55 pm
MDW
-
BHD
16h 17m
2 stops
KLM Logo
9:50 am - 10:28 pm
BHD
-
MDW
18h 38m
2 stops
$1,071KLM
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
5:42 pm - 4:55 pm
STL
-
BHD
17h 13m
2 stops
Multiple Airlines Logo
9:50 am - 9:56 pm
BHD
-
STL
18h 06m
2 stops
$1,137Multiple Airlines
Tue, Jul 7 - Sat, Jul 18
KLM Logo
6:34 pm - 4:55 pm
MDW
-
BHD
16h 21m
2 stops
KLM Logo
5:30 pm - 10:28 pm
BHD
-
MDW
34h 58m
2 stops
$1,177KLM
Fri, Apr 10 - Mon, Apr 13

American Airlines flights from Illinois to Belfast City Airport

Our best American Airlines deals on Illinois to Belfast City Airport flight tickets
American Airlines
Aug 16
ORD9:15 pmChicago O'Hare Intl
14h 25m
1 stop
BHD5:40 pmBelfast City
Aug 20
BHD6:30 amBelfast City
14h 30m
1 stop
ORD3:00 pmChicago O'Hare Intl
$882
American Airlines
Sep 7
ORD6:15 pmChicago O'Hare Intl
12h 40m
1 stop
BHD12:55 pmBelfast City
Sep 13
BHD6:30 amBelfast City
12h 00m
1 stop
ORD12:30 pmChicago O'Hare Intl
$933
American Airlines
Jul 19
ORD8:45 pmChicago O'Hare Intl
14h 55m
1 stop
BHD5:40 pmBelfast City
Jul 25
BHD4:15 pmBelfast City
26h 15m
1 stop
ORD12:30 pmChicago O'Hare Intl
$1,110

KLM flights from Illinois to Belfast City Airport

Our best KLM deals on Illinois to Belfast City Airport flight tickets
KLM
Apr 24
MDW6:38 pmChicago Midway
16h 17m
2 stops
BHD4:55 pmBelfast City
May 1
BHD9:50 amBelfast City
18h 38m
2 stops
MDW10:28 pmChicago Midway
$1,071
KLM
Apr 10
MDW6:34 pmChicago Midway
16h 21m
2 stops
BHD4:55 pmBelfast City
Apr 13
BHD5:30 pmBelfast City
34h 58m
2 stops
MDW10:28 pmChicago Midway
$1,177
KLM
Aug 16
MDW1:00 pmChicago Midway
14h 20m
2 stops
BHD9:20 amBelfast City
Aug 20
BHD9:50 amBelfast City
17h 56m
2 stops
MDW9:46 pmChicago Midway
$2,212

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated March 29, 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 round-trip

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 8/11

7:05 pm-3:20 pm

1 stop14h 15m

Belfast City

Wed 8/19

10:05 am-11:12 pm

2 stops19h 07m

$847

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 8/11

4:16 pm-3:20 pm

2 stops17h 04m

Belfast City

Wed 8/19

10:05 am-11:12 pm

2 stops19h 07m

$851

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 8/11

7:05 pm-3:20 pm

1 stop14h 15m

Belfast City

Wed 8/19

8:35 pm-12:30 pm

1 stop21h 55m

$856

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 4/24

11:25 am-8:30 pm

2 stops27h 05m

Belfast City

Fri 5/1

7:00 am-9:40 am

2 stops32h 40m

$859
Quickest round-trip

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 8/16

9:15 pm-5:40 pm

1 stop14h 25m

Belfast City

Thu 8/20

6:30 am-3:00 pm

1 stop14h 30m

$882

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 8/11

7:05 pm-3:20 pm

1 stop14h 15m

Belfast City

Tue 8/18

8:25 pm-4:17 pm

2 stops25h 52m

$886

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 8/11

5:15 pm-3:20 pm

2 stops16h 05m

Belfast City

Tue 8/18

8:25 pm-4:17 pm

2 stops25h 52m

$888

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 4/24

6:38 pm-4:55 pm

2 stops16h 17m

Belfast City

Fri 5/1

9:50 am-10:28 pm

2 stops18h 38m

$1,071

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Tue 7/7

5:42 pm-4:55 pm

2 stops17h 13m

Belfast City

Sat 7/18

9:50 am-9:56 pm

2 stops18h 06m

$1,137

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 4/10

6:34 pm-4:55 pm

2 stops16h 21m

Belfast City

Mon 4/13

5:30 pm-10:28 pm

2 stops34h 58m

$1,177

Flights are sorted by cheapest round-trip 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, Scandinavian Airlines, 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

Fastest flight time

13h 58m

Direct flights

None
The fastest flight from Illinois to Belfast City Airport takes 13h 58m
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

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

    Prices for flights from Illinois to Belfast City Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

Traveling to a place near Belfast?

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

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?

All flight searches from Illinois to Belfast on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Belfast.

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

If you are not ready to book a flight from Illinois to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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