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Cheap flights from Illinois to Belfast from £174

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 26/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:30 - 13:25
ORD
-
BFS
12h 55m
2 stops
Multiple Airlines Logo
06:00 - 17:20
BFS
-
ORD
17h 20m
2 stops
£443Multiple Airlines
Tue, 3 Mar - Sat, 7 Mar
Multiple Airlines Logo
18:30 - 13:25
ORD
-
BFS
12h 55m
2 stops
Multiple Airlines Logo
06:30 - 17:20
BFS
-
ORD
16h 50m
2 stops
£467Multiple Airlines
Tue, 24 Feb - Tue, 3 Mar
American Airlines Logo
20:35 - 14:50
ORD
-
BHD
12h 15m
1 stop
American Airlines Logo
08:45 - 15:25
BHD
-
ORD
12h 40m
1 stop
£481American Airlines
Tue, 24 Feb - Tue, 3 Mar
British Airways Logo
16:36 - 13:35
ORD
-
BHD
14h 59m
2 stops
British Airways Logo
10:05 - 15:55
BHD
-
ORD
11h 50m
1 stop
£485British Airways
Wed, 8 Apr - Wed, 15 Apr
American Airlines Logo
20:35 - 13:35
ORD
-
BHD
11h 00m
1 stop
American Airlines Logo
06:30 - 17:35
BHD
-
ORD
17h 05m
1 stop
£487American Airlines
Wed, 8 Apr - Wed, 15 Apr
British Airways Logo
19:05 - 08:50
ORD
-
BHD
31h 45m
1 stop
British Airways Logo
06:30 - 15:55
BHD
-
ORD
15h 25m
1 stop
£496British Airways
Sun, 29 Mar - Thu, 9 Apr
Delta Logo
16:50 - 16:55
ORD
-
BHD
18h 05m
1 stop
Delta Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
£504Delta
Mon, 30 Mar - Thu, 9 Apr
Delta Logo
15:59 - 16:55
ORD
-
BHD
18h 56m
2 stops
Delta Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
£507Delta
Mon, 30 Mar - Wed, 8 Apr
KLM Logo
19:20 - 15:55
MDW
-
BHD
15h 35m
2 stops
KLM Logo
09:50 - 22:31
BHD
-
MDW
18h 41m
2 stops
£2,835KLM
Sat, 28 Mar - Fri, 10 Apr
KLM Logo
19:20 - 15:55
MDW
-
BHD
15h 35m
2 stops
KLM Logo
09:50 - 22:31
BHD
-
MDW
18h 41m
2 stops
£2,872KLM
Sat, 28 Mar - Sun, 12 Apr

British Airways flights from Illinois to Belfast

Our best British Airways deals on Illinois to Belfast flight tickets
British Airways
8 Apr
ORD16:36Chicago O'Hare Intl
14h 59m
2 stops
BHD13:35Belfast City
15 Apr
BHD10:05Belfast City
11h 50m
1 stop
ORD15:55Chicago O'Hare Intl
£485
British Airways
29 Mar
ORD19:05Chicago O'Hare Intl
31h 45m
1 stop
BHD08:50Belfast City
9 Apr
BHD06:30Belfast City
15h 25m
1 stop
ORD15:55Chicago O'Hare Intl
£496
British Airways
8 Apr
ORD16:36Chicago O'Hare Intl
14h 59m
2 stops
BHD13:35Belfast City
15 Apr
BHD10:05Belfast City
17h 55m
2 stops
ORD22:00Chicago O'Hare Intl
£501

Delta flights from Illinois to Belfast

Our best Delta deals on Illinois to Belfast flight tickets
Delta
30 Mar
ORD16:50Chicago O'Hare Intl
18h 05m
1 stop
BHD16:55Belfast City
9 Apr
BHD17:30Belfast City
26h 45m
1 stop
ORD14:15Chicago O'Hare Intl
£504
Delta
30 Mar
ORD15:59Chicago O'Hare Intl
18h 56m
2 stops
BHD16:55Belfast City
8 Apr
BHD17:30Belfast City
26h 45m
1 stop
ORD14:15Chicago O'Hare Intl
£507
Delta
29 Mar
ORD10:40Chicago O'Hare Intl
16h 40m
2 stops
BHD09:20Belfast City
9 Apr
BHD17:30Belfast City
26h 45m
1 stop
ORD14:15Chicago O'Hare Intl
£508

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 14 February 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

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 3/3

18:30-13:25

2 stops12h 55m

Belfast Intl

Sat 7/3

06:00-17:20

2 stops17h 20m

£443

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 24/2

18:30-13:25

2 stops12h 55m

Belfast Intl

Tue 3/3

06:30-17:20

2 stops16h 50m

£467

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 24/2

20:35-14:50

1 stop12h 15m

Belfast City

Tue 3/3

08:45-15:25

1 stop12h 40m

£481

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 8/4

16:36-13:35

2 stops14h 59m

Belfast City

Wed 15/4

10:05-15:55

1 stop11h 50m

£485

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 8/4

20:35-13:35

1 stop11h 00m

Belfast City

Wed 15/4

06:30-17:35

1 stop17h 05m

£487

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 29/3

19:05-08:50

1 stop31h 45m

Belfast City

Thu 9/4

06:30-15:55

1 stop15h 25m

£496

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 30/3

16:50-16:55

1 stop18h 05m

Belfast City

Thu 9/4

17:30-14:15

1 stop26h 45m

£504

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 30/3

15:59-16:55

2 stops18h 56m

Belfast City

Wed 8/4

17:30-14:15

1 stop26h 45m

£507

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sat 28/3

19:20-15:55

2 stops15h 35m

Belfast City

Fri 10/4

09:50-22:31

2 stops18h 41m

£2,835

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sat 28/3

19:20-15:55

2 stops15h 35m

Belfast City

Sun 12/4

09:50-22:31

2 stops18h 41m

£2,872

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 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?

Aer Lingus is the most popular carrier 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

10h 30m

Direct flights

None
The fastest flight from Illinois to Belfast takes 10h 30m
There are no direct flights from Illinois to Belfast. There are no popular flight routes from Illinois to Belfast.
Search flight deals

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

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

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

    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.

  • 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 Illinois to Belfast?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Belfast. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Belfast from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Of course. momondo tracks the price of Illinois to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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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