How do I get Price Alerts for flights from Belfast Intl Airport to Illinois?

Price Alerts will notify you by email when the price for flights to Illinois from Belfast Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Belfast Intl Airport to Illinois with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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

Prices for flights from Belfast Intl Airport to Illinois refresh daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£341 Cheap Flights from Belfast Intl Airport to Illinois in 2026

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Find the cheapest flights from Belfast Intl Airport to Illinois

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

08:15 - 09:36

BFS

ORD

31h 21m

3 stops

19:25 - 16:15

ORD

BFS

14h 50m

2 stops

£577Multiple Airlines

Mon, 27 Apr - Mon, 4 May

08:15 - 23:07

BFS

ORD

20h 52m

2 stops

19:25 - 16:15

ORD

BFS

14h 50m

2 stops

£595Multiple Airlines

Mon, 27 Apr - Mon, 4 May

08:50 - 21:25

BFS

ORD

42h 35m

3 stops

19:25 - 16:20

ORD

BFS

14h 55m

2 stops

£645Multiple Airlines

Tue, 1 Sep - Tue, 29 Sep

08:50 - 21:25

BFS

ORD

42h 35m

3 stops

19:25 - 23:20

ORD

BFS

21h 55m

3 stops

£678Multiple Airlines

Tue, 1 Sep - Tue, 29 Sep

06:40 - 18:15

BFS

ORD

17h 35m

2 stops

19:25 - 16:15

ORD

BFS

14h 50m

2 stops

£694Multiple Airlines

Mon, 11 May - Mon, 18 May

07:15 - 18:15

BFS

ORD

17h 00m

2 stops

19:25 - 16:20

ORD

BFS

14h 55m

2 stops

£748Multiple Airlines

Tue, 1 Sep - Tue, 29 Sep

17:35 - 19:25

BFS

ORD

31h 50m

3 stops

15:45 - 23:20

ORD

BFS

25h 35m

3 stops

£772Multiple Airlines

Mon, 11 May - Mon, 18 May

17:35 - 19:25

BFS

ORD

31h 50m

3 stops

15:45 - 20:50

ORD

BFS

23h 05m

2 stops

£783Multiple Airlines

Mon, 11 May - Mon, 18 May

11:10 - 11:50

BFS

ORD

30h 40m

2 stops

22:25 - 22:15

ORD

BFS

17h 50m

2 stops

£870Multiple Airlines

Sat, 1 Aug - Tue, 4 Aug

11:10 - 11:50

BFS

ORD

30h 40m

2 stops

08:45 - 15:15

ORD

BFS

24h 30m

3 stops

£887Multiple Airlines

Sat, 1 Aug - Tue, 4 Aug

momondo Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 27/4

08:15-09:36

3 stops31h 21m

Chicago O'Hare Intl

Mon 4/5

19:25-16:15

2 stops14h 50m

£577

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 27/4

08:15-23:07

2 stops20h 52m

Chicago O'Hare Intl

Mon 4/5

19:25-16:15

2 stops14h 50m

£595

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/9

08:50-21:25

3 stops42h 35m

Chicago O'Hare Intl

Tue 29/9

19:25-16:20

2 stops14h 55m

£645

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/9

08:50-21:25

3 stops42h 35m

Chicago O'Hare Intl

Tue 29/9

19:25-23:20

3 stops21h 55m

£678

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/5

06:40-18:15

2 stops17h 35m

Chicago O'Hare Intl

Mon 18/5

19:25-16:15

2 stops14h 50m

£694

Fastest return journey

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/9

07:15-18:15

2 stops17h 00m

Chicago O'Hare Intl

Tue 29/9

19:25-16:20

2 stops14h 55m

£748

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/5

17:35-19:25

3 stops31h 50m

Chicago O'Hare Intl

Mon 18/5

15:45-23:20

3 stops25h 35m

£772

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/5

17:35-19:25

3 stops31h 50m

Chicago O'Hare Intl

Mon 18/5

15:45-20:50

2 stops23h 05m

£783

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/8

11:10-11:50

2 stops30h 40m

Chicago O'Hare Intl

Tue 4/8

22:25-22:15

2 stops17h 50m

£870

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/8

11:10-11:50

2 stops30h 40m

Chicago O'Hare Intl

Tue 4/8

08:45-15:15

3 stops24h 30m

£887

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Cheap Belfast Intl Airport to Illinois flight deals and tips

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

Fastest flight time	13h 15m
Direct flights	None

The fastest flight from Belfast Intl Airport to Illinois takes 13h 15m

There are no direct flights from Belfast Intl Airport to Illinois. There are no popular flight routes from Belfast Intl Airport to Illinois.

Search flight deals

When did momondo last update prices for flights from Belfast Intl Airport to Illinois?
Prices for flights from Belfast Intl Airport to Illinois refresh daily.
How old do you have to be to fly from Belfast Intl Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Belfast Intl Airport to Illinois?
Price Alerts will notify you by email when the price for flights to Illinois from Belfast Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Belfast Intl Airport to Illinois with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Illinois?

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 Illinois from Belfast.

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

momondo does allow users to show only those flights to Illinois from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Belfast and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Illinois from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.