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Cheap flights from Illinois to Belfast from $265

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 9/1. 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 Illinois to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 4:15 pm
ORD
-
BHD
14h 50m
3 stops
Multiple Airlines Logo
10:50 am - 9:25 pm
BHD
-
ORD
40h 35m
3 stops
$705Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
7:25 pm - 10:45 pm
ORD
-
BFS
21h 20m
3 stops
Multiple Airlines Logo
10:30 pm - 12:40 pm
BFS
-
ORD
44h 10m
3 stops
$715Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
2:15 pm - 5:05 pm
ORD
-
BFS
20h 50m
2 stops
Multiple Airlines Logo
8:50 am - 9:20 pm
BFS
-
ORD
42h 30m
3 stops
$738Multiple Airlines
Wed, Sep 16 - Tue, Sep 22
Multiple Airlines Logo
7:25 pm - 11:20 pm
ORD
-
BFS
21h 55m
3 stops
Multiple Airlines Logo
10:50 am - 9:20 pm
BFS
-
ORD
40h 30m
3 stops
$771Multiple Airlines
Mon, Aug 17 - Wed, Sep 9
British Airways Logo
9:15 pm - 3:30 pm
ORD
-
BHD
12h 15m
1 stop
British Airways Logo
7:40 pm - 1:50 pm
BHD
-
ORD
24h 10m
1 stop
$907British Airways
Mon, Aug 3 - Wed, Aug 19
British Airways Logo
7:05 pm - 12:55 pm
ORD
-
BHD
11h 50m
1 stop
British Airways Logo
11:35 am - 6:15 pm
BHD
-
ORD
12h 40m
1 stop
$915British Airways
Mon, Aug 17 - Wed, Sep 9
KLM Logo
1:25 pm - 9:20 am
MDW
-
BHD
13h 55m
2 stops
KLM Logo
9:50 am - 10:45 pm
BHD
-
MDW
18h 55m
2 stops
$968KLM
Mon, Aug 17 - Wed, Sep 9
Delta Logo
5:10 pm - 4:55 pm
MDW
-
BHD
17h 45m
2 stops
Delta Logo
9:50 am - 10:36 pm
BHD
-
MDW
18h 46m
2 stops
$1,018Delta
Fri, Aug 14 - Fri, Aug 21
KLM Logo
6:42 pm - 4:55 pm
MDW
-
BHD
16h 13m
2 stops
KLM Logo
9:50 am - 10:36 pm
BHD
-
MDW
18h 46m
2 stops
$1,084KLM
Thu, Aug 20 - Tue, Aug 25
Delta Logo
6:42 pm - 4:55 pm
MDW
-
BHD
16h 13m
2 stops
Delta Logo
9:50 am - 10:36 pm
BHD
-
MDW
18h 46m
2 stops
$1,848Delta
Mon, Aug 3 - Wed, Aug 19

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British Airways flights from Illinois to Belfast

Our best British Airways deals on Illinois to Belfast flight tickets
British Airways
Aug 3
ORD9:15 pmChicago O'Hare Intl
12h 15m
1 stop
BHD3:30 pmBelfast City
Aug 19
BHD7:40 pmBelfast City
24h 10m
1 stop
ORD1:50 pmChicago O'Hare Intl
$907
British Airways
Sep 16
ORD5:00 pmChicago O'Hare Intl
13h 00m
1 stop
BHD12:00 pmBelfast City
Sep 22
BHD6:30 amBelfast City
13h 20m
1 stop
ORD1:50 pmChicago O'Hare Intl
$916
British Airways
Sep 6
ORD9:15 pmChicago O'Hare Intl
11h 20m
1 stop
BHD2:35 pmBelfast City
Sep 14
BHD7:35 pmBelfast City
26h 20m
1 stop
ORD3:55 pmChicago O'Hare Intl
$932

Delta flights from Illinois to Belfast

Our best Delta deals on Illinois to Belfast flight tickets
Delta
Aug 2
ORD7:17 pmChicago O'Hare Intl
15h 38m
2 stops
BHD4:55 pmBelfast City
Sep 10
BHD5:30 pmBelfast City
26h 45m
1 stop
ORD2:15 pmChicago O'Hare Intl
$959
Delta
Aug 2
ORD4:20 pmChicago O'Hare Intl
11h 00m
1 stop
BHD9:20 amBelfast City
Sep 4
BHD9:50 amBelfast City
16h 40m
2 stops
ORD8:30 pmChicago O'Hare Intl
$964
Delta
Aug 2
ORD7:17 pmChicago O'Hare Intl
15h 38m
2 stops
BHD4:55 pmBelfast City
Sep 9
BHD9:50 amBelfast City
16h 40m
2 stops
ORD8:30 pmChicago O'Hare Intl
$969

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 832,500 searches. Data last updated July 4, 2026.
Use the filters below to find and compare flights from Illinois to Belfast 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 9/1

7:25 pm-4:15 pm

3 stops14h 50m

Belfast City

Tue 9/8

10:50 am-9:25 pm

3 stops40h 35m

$705

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 9/1

7:25 pm-10:45 pm

3 stops21h 20m

Belfast Intl

Tue 9/8

10:30 pm-12:40 pm

3 stops44h 10m

$715

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 9/16

2:15 pm-5:05 pm

2 stops20h 50m

Belfast Intl

Tue 9/22

8:50 am-9:20 pm

3 stops42h 30m

$738

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 8/17

7:25 pm-11:20 pm

3 stops21h 55m

Belfast Intl

Wed 9/9

10:50 am-9:20 pm

3 stops40h 30m

$771

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 8/3

9:15 pm-3:30 pm

1 stop12h 15m

Belfast City

Wed 8/19

7:40 pm-1:50 pm

1 stop24h 10m

$907
Quickest round-trip

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 8/17

7:05 pm-12:55 pm

1 stop11h 50m

Belfast City

Wed 9/9

11:35 am-6:15 pm

1 stop12h 40m

$915

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Mon 8/17

1:25 pm-9:20 am

2 stops13h 55m

Belfast City

Wed 9/9

9:50 am-10:45 pm

2 stops18h 55m

$968

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 8/14

5:10 pm-4:55 pm

2 stops17h 45m

Belfast City

Fri 8/21

9:50 am-10:36 pm

2 stops18h 46m

$1,018

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 8/20

6:42 pm-4:55 pm

2 stops16h 13m

Belfast City

Tue 8/25

9:50 am-10:36 pm

2 stops18h 46m

$1,084

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Mon 8/3

6:42 pm-4:55 pm

2 stops16h 13m

Belfast City

Wed 8/19

9:50 am-10:36 pm

2 stops18h 46m

$1,848

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

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?

British Airways, KLM, and Delta are the most popular carriers operating from Illinois to Belfast

Cheap Illinois to Belfast flight deals and tips

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

Fastest flight time

11h 10m

Direct flights

None
The fastest flight from Illinois to Belfast takes 11h 10m
There are no direct flights from Illinois to Belfast. There are no popular flight routes from Illinois to Belfast.
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Frequently asked questions about flying from Illinois to Belfast

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

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

  • How many operators does momondo search for flights from Illinois to Belfast?

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

    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.

  • 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.

Best airlines flying from Illinois to Belfast

Compare and see reviews for airlines that fly from Illinois to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $577Free CancellationRating
6.7
8,095 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois 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 Illinois to Belfast for you.

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

Yes. momondo allows you to filter the results for Illinois to Belfast flights to just show those with flexible booking policies.

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?

Price alerts on flights to Belfast from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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