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.

£305 Cheap Flights from Illinois to Belfast in 2025/26

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0 bags

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Find the cheapest flights from Illinois to Belfast

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

18:44 - 14:15STL-BHD

13h 31m2 stops

06:35 - 18:16BHD-STL

17h 41m2 stops

£471British Airways

Find Deal

Mon, 12 Jan - Tue, 20 Jan

18:44 - 14:15STL-BHD

13h 31m2 stops

06:35 - 18:16BHD-STL

17h 41m2 stops

£472British Airways

Find Deal

Mon, 12 Jan - Tue, 20 Jan

16:25 - 16:50ORD-BHD

18h 25m1 stop

17:20 - 14:20BHD-ORD

27h 00m1 stop

£539Delta

Find Deal

Wed, 3 Dec - Sun, 7 Dec

16:25 - 16:50ORD-BHD

18h 25m1 stop

06:30 - 18:27BHD-ORD

17h 57m2 stops

£547Delta

Find Deal

Wed, 3 Dec - Sun, 7 Dec

19:40 - 18:25ORD-BHD

16h 45m2 stops

06:50 - 17:55BHD-ORD

17h 05m2 stops

£551Aer Lingus

Find Deal

Wed, 10 Dec - Wed, 17 Dec

10:10 - 21:20ORD-BHD

29h 10m2 stops

06:30 - 14:20BHD-ORD

13h 50m1 stop

£561Virgin Atlantic

Find Deal

Fri, 3 Apr - Tue, 7 Apr

16:25 - 11:10ORD-BHD

13h 45m2 stops

15:50 - 11:55BHD-ORD

26h 05m1 stop

£564American Airlines

Find Deal

Sat, 21 Mar - Sun, 29 Mar

20:30 - 15:30ORD-BHD

13h 00m1 stop

06:50 - 17:43BHD-ORD

16h 53m2 stops

£580American Airlines

Find Deal

Fri, 10 Apr - Sun, 19 Apr

19:40 - 14:05ORD-BHD

12h 25m2 stops

18:00 - 14:00BHD-ORD

26h 00m2 stops

£680Aer Lingus

Find Deal

Sun, 7 Dec - Sun, 21 Dec

14:00 - 16:55MDW-BHD

20h 55m2 stops

17:25 - 18:08BHD-MDW

30h 43m2 stops

£760Virgin Atlantic

Find Deal

Wed, 1 Apr - Sun, 5 Apr

British Airways flights from Illinois to Belfast

Our best British Airways deals on Illinois to Belfast flight tickets

British Airways

12 Jan

STL18:44Lambert-St Louis

13h 31m

2 stops

BHD14:15Belfast City

20 Jan

BHD06:35Belfast City

17h 41m

2 stops

STL18:16Lambert-St Louis

£471

Find similar

British Airways

12 Jan

STL18:44Lambert-St Louis

13h 31m

2 stops

BHD14:15Belfast City

20 Jan

BHD06:35Belfast City

17h 41m

2 stops

STL18:16Lambert-St Louis

£472

Find similar

British Airways

1 May

ORD21:15Chicago O'Hare Intl

12h 15m

1 stop

BHD15:30Belfast City

5 May

BHD09:35Belfast City

12h 20m

1 stop

ORD15:55Chicago O'Hare Intl

£532

Find similar

Virgin Atlantic flights from Illinois to Belfast

Our best Virgin Atlantic deals on Illinois to Belfast flight tickets

Virgin Atlantic

3 Apr

ORD10:10Chicago O'Hare Intl

29h 10m

2 stops

BHD21:20Belfast City

7 Apr

BHD06:30Belfast City

13h 50m

1 stop

ORD14:20Chicago O'Hare Intl

£561

Find similar

Virgin Atlantic

1 Apr

MDW14:00Chicago Midway

20h 55m

2 stops

BHD16:55Belfast City

5 Apr

BHD17:25Belfast City

30h 43m

2 stops

MDW18:08Chicago Midway

£760

Find similar

Virgin Atlantic

1 Apr

MDW14:00Chicago Midway

20h 55m

2 stops

BHD16:55Belfast City

5 Apr

BHD17:25Belfast City

54h 43m

2 stops

MDW18:08Chicago Midway

£899

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 12/1

18:44-14:15

2 stops13h 31m

Belfast City

Tue 20/1

06:35-18:16

2 stops17h 41m

£471

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 12/1

18:44-14:15

2 stops13h 31m

Belfast City

Tue 20/1

06:35-18:16

2 stops17h 41m

£472

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/12

16:25-16:50

1 stop18h 25m

Belfast City

Sun 7/12

17:20-14:20

1 stop27h 00m

£539

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/12

16:25-16:50

1 stop18h 25m

Belfast City

Sun 7/12

06:30-18:27

2 stops17h 57m

£547

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 10/12

19:40-18:25

2 stops16h 45m

Belfast City

Wed 17/12

06:50-17:55

2 stops17h 05m

£551

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/4

10:10-21:20

2 stops29h 10m

Belfast City

Tue 7/4

06:30-14:20

1 stop13h 50m

£561

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 21/3

16:25-11:10

2 stops13h 45m

Belfast City

Sun 29/3

15:50-11:55

1 stop26h 05m

£564

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 10/4

20:30-15:30

1 stop13h 00m

Belfast City

Sun 19/4

06:50-17:43

2 stops16h 53m

£580

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 7/12

19:40-14:05

2 stops12h 25m

Belfast City

Sun 21/12

18:00-14:00

2 stops26h 00m

£680

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 1/4

14:00-16:55

2 stops20h 55m

Belfast City

Sun 5/4

17:25-18:08

2 stops30h 43m

£760

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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, British Airways, and KLM 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

Direct flights	None

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.