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Cheap flights from Illinois to Belfast from $313

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 1/6. 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 - 11:55 am
ORD
-
BHD
10h 50m1 stop
British Airways Logo
10:00 am - 3:55 pm
BHD
-
ORD
11h 55m1 stop
$636British Airways
Wed, Apr 22 - Wed, Apr 29
British Airways Logo
9:40 am - 8:50 am
ORD
-
BHD
17h 10m2 stops
British Airways Logo
6:50 am - 1:50 pm
BHD
-
ORD
13h 00m1 stop
$656British Airways
Wed, Apr 22 - Wed, Apr 29
British Airways Logo
9:40 am - 9:00 am
ORD
-
BHD
17h 20m2 stops
British Airways Logo
7:30 pm - 5:43 pm
BHD
-
ORD
28h 13m2 stops
$659British Airways
Tue, Apr 28 - Mon, May 4
British Airways Logo
9:15 pm - 5:30 pm
ORD
-
BHD
14h 15m1 stop
British Airways Logo
7:30 pm - 5:43 pm
BHD
-
ORD
28h 13m2 stops
$662British Airways
Tue, Apr 28 - Mon, May 4
British Airways Logo
9:45 pm - 4:50 pm
ORD
-
BHD
13h 05m1 stop
British Airways Logo
8:25 pm - 1:50 pm
BHD
-
ORD
23h 25m1 stop
$669British Airways
Sun, Jan 18 - Sun, Jan 25
British Airways Logo
5:10 pm - 1:30 pm
ORD
-
BHD
14h 20m2 stops
British Airways Logo
10:00 am - 7:35 pm
BHD
-
ORD
15h 35m2 stops
$672British Airways
Wed, Apr 22 - Wed, Apr 29
British Airways Logo
9:45 pm - 4:50 pm
ORD
-
BHD
13h 05m1 stop
British Airways Logo
6:30 am - 8:04 pm
BHD
-
ORD
19h 34m2 stops
$692British Airways
Sun, Jan 18 - Sun, Jan 25
KLM Logo
6:55 pm - 4:50 pm
STL
-
BHD
15h 55m2 stops
KLM Logo
5:20 pm - 8:37 pm
BHD
-
STL
33h 17m2 stops
$771KLM
Mon, Jan 12 - Tue, Jan 20
Delta Logo
1:49 pm - 4:50 pm
MDW
-
BHD
21h 01m2 stops
Delta Logo
5:20 pm - 5:29 pm
BHD
-
MDW
30h 09m2 stops
$790Delta
Thu, Jan 29 - Sun, Feb 1
KLM Logo
6:55 pm - 4:50 pm
STL
-
BHD
15h 55m2 stops
KLM Logo
5:20 pm - 8:43 pm
BHD
-
STL
33h 23m2 stops
$797KLM
Mon, Jan 12 - Tue, Jan 20

British Airways flights from Illinois to Belfast City Airport

Our best British Airways deals on Illinois to Belfast City Airport flight tickets
British Airways
Apr 22
ORD7:05 pmChicago O'Hare Intl
10h 50m
1 stop
BHD11:55 amBelfast City
Apr 29
BHD10:00 amBelfast City
11h 55m
1 stop
ORD3:55 pmChicago O'Hare Intl
$636
Find similar
British Airways
Apr 22
ORD9:40 amChicago O'Hare Intl
17h 10m
2 stops
BHD8:50 amBelfast City
Apr 29
BHD6:50 amBelfast City
13h 00m
1 stop
ORD1:50 pmChicago O'Hare Intl
$656
Find similar
British Airways
Apr 28
ORD7:05 pmChicago O'Hare Intl
14h 15m
1 stop
BHD3:20 pmBelfast City
May 4
BHD6:30 pmBelfast City
25h 20m
1 stop
ORD1:50 pmChicago O'Hare Intl
$659
Find similar

KLM flights from Illinois to Belfast City Airport

Our best KLM deals on Illinois to Belfast City Airport flight tickets
KLM
Jan 20
STL3:31 pmLambert-St Louis
19h 19m
2 stops
BHD4:50 pmBelfast City
Jan 27
BHD5:20 pmBelfast City
29h 25m
2 stops
STL4:45 pmLambert-St Louis
$661
Find similar
KLM
Jan 12
STL6:55 pmLambert-St Louis
15h 55m
2 stops
BHD4:50 pmBelfast City
Jan 20
BHD5:20 pmBelfast City
33h 17m
2 stops
STL8:37 pmLambert-St Louis
$771
Find similar
KLM
Jan 12
STL6:55 pmLambert-St Louis
15h 55m
2 stops
BHD4:50 pmBelfast City
Jan 20
BHD5:20 pmBelfast City
33h 23m
2 stops
STL8:43 pmLambert-St Louis
$797
Find similar

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 December 21, 2025.
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

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 4/22

7:05 pm-11:55 am

1 stop10h 50m

Belfast City

Wed 4/29

10:00 am-3:55 pm

1 stop11h 55m

$636

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 4/22

9:40 am-8:50 am

2 stops17h 10m

Belfast City

Wed 4/29

6:50 am-1:50 pm

1 stop13h 00m

$656

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 4/28

9:40 am-9:00 am

2 stops17h 20m

Belfast City

Mon 5/4

7:30 pm-5:43 pm

2 stops28h 13m

$659

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 4/28

9:15 pm-5:30 pm

1 stop14h 15m

Belfast City

Mon 5/4

7:30 pm-5:43 pm

2 stops28h 13m

$662

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 1/18

9:45 pm-4:50 pm

1 stop13h 05m

Belfast City

Sun 1/25

8:25 pm-1:50 pm

1 stop23h 25m

$669

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 4/22

5:10 pm-1:30 pm

2 stops14h 20m

Belfast City

Wed 4/29

10:00 am-7:35 pm

2 stops15h 35m

$672

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 1/18

9:45 pm-4:50 pm

1 stop13h 05m

Belfast City

Sun 1/25

6:30 am-8:04 pm

2 stops19h 34m

$692

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:55 pm-4:50 pm

2 stops15h 55m

Belfast City

Tue 1/20

5:20 pm-8:37 pm

2 stops33h 17m

$771

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 1/29

1:49 pm-4:50 pm

2 stops21h 01m

Belfast City

Sun 2/1

5:20 pm-5:29 pm

2 stops30h 09m

$790

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:55 pm-4:50 pm

2 stops15h 55m

Belfast City

Tue 1/20

5:20 pm-8:43 pm

2 stops33h 23m

$797

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 day to depart on your flight to Belfast City Airport?

On average, the least expensive day to fly to Belfast City Airport from Illinois is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $625. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $782.

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

10h 50m

Direct flights

None
The fastest flight from Illinois to Belfast City Airport takes 10h 50m
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 many operators does momondo search for flights from Illinois to Belfast City Airport?

  • 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.

Best airlines flying from Illinois to Belfast City Airport

Compare and see reviews for airlines that fly from Illinois to Belfast City Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $629Free CancellationRating
6.7
7,600 reviews
Search British Airways flights

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.

An easier way to manage your Belfast City Airport trip

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