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.

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.

£275 Cheap Flights from Belfast Intl Airport to Illinois in 2026

Find the cheapest flights from Belfast Intl Airport to Illinois

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:10 - 20:41BFS Belfast Intl-ORD Chicago O'Hare Intl

44h 31m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Island

19:25 - 20:55ORD Chicago O'Hare Intl-BFS Belfast Intl

19h 30m2 stops Reykjavik Keflavik Intl Manchester

£606Multiple Airlines

Mon, 21 Sep - Mon, 28 Sep

06:10 - 09:00BFS Belfast Intl-ORD Chicago O'Hare Intl

32h 50m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

22:25 - 21:10ORD Chicago O'Hare Intl-BFS Belfast Intl

16h 45m2 stops Reykjavik Keflavik Intl Glasgow Intl

£611Multiple Airlines

Wed, 23 Sep - Wed, 30 Sep

13:50 - 16:10BFS Belfast Intl-ORD Chicago O'Hare Intl

32h 20m2 stops Manchester Kastrup Copenhagen

19:15 - 22:20ORD Chicago O'Hare Intl-BFS Belfast Intl

21h 05m2 stops Kastrup Copenhagen Manchester

£620Multiple Airlines

Wed, 23 Sep - Wed, 30 Sep

20:55 - 20:41BFS Belfast Intl-ORD Chicago O'Hare Intl

29h 46m3 stops London Gatwick Ottawa Toronto Island

14:15 - 20:40ORD Chicago O'Hare Intl-BFS Belfast Intl

24h 25m2 stops Toronto Pearson Intl Edinburgh Turnhouse

£624Multiple Airlines

Mon, 7 Sep - Mon, 14 Sep

07:30 - 19:15BFS Belfast Intl-ORD Chicago O'Hare Intl

17h 45m2 stops Manchester Dublin

15:45 - 21:05ORD Chicago O'Hare Intl-BFS Belfast Intl

23h 20m2 stops Dublin Manchester

£632Multiple Airlines

Wed, 23 Sep - Wed, 30 Sep

20:55 - 20:41BFS Belfast Intl-ORD Chicago O'Hare Intl

29h 46m3 stops London Gatwick Ottawa Toronto Island

11:05 - 20:40ORD Chicago O'Hare Intl-BFS Belfast Intl

27h 35m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Edinburgh Turnhouse

£635Multiple Airlines

Mon, 7 Sep - Mon, 14 Sep

21:10 - 19:48BFS Belfast Intl-ORD Chicago O'Hare Intl

28h 38m2 stops London Gatwick Toronto Pearson Intl

22:25 - 21:50ORD Chicago O'Hare Intl-BFS Belfast Intl

17h 25m2 stops Reykjavik Keflavik Intl Glasgow Intl

£638Multiple Airlines

Fri, 25 Sep - Fri, 2 Oct

06:10 - 19:48BFS Belfast Intl-ORD Chicago O'Hare Intl

19h 38m2 stops London Gatwick Toronto Pearson Intl

09:55 - 17:55ORD Chicago O'Hare Intl-BFS Belfast Intl

26h 00m3 stops Toronto Pearson Intl Madrid Barajas London Stansted

£642Multiple Airlines

Wed, 23 Sep - Wed, 30 Sep

06:10 - 20:12BFS Belfast Intl-ORD Chicago O'Hare Intl

20h 02m3 stops London Gatwick Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

19:25 - 20:55ORD Chicago O'Hare Intl-BFS Belfast Intl

19h 30m2 stops Reykjavik Keflavik Intl Manchester

£649Multiple Airlines

Mon, 21 Sep - Mon, 28 Sep

20:55 - 20:41BFS Belfast Intl-ORD Chicago O'Hare Intl

29h 46m3 stops London Gatwick Ottawa Toronto Island

14:15 - 16:15ORD Chicago O'Hare Intl-BFS Belfast Intl

20h 00m3 stops Toronto Pearson Intl Madrid Barajas London Stansted

£653Multiple Airlines

Mon, 21 Sep - Mon, 28 Sep

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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 Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 21/9

06:10-20:41

3 stops44h 31m

Chicago O'Hare Intl

Mon 28/9

19:25-20:55

2 stops19h 30m

£606

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 23/9

06:10-09:00

3 stops32h 50m

Chicago O'Hare Intl

Wed 30/9

22:25-21:10

2 stops16h 45m

£611

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 23/9

13:50-16:10

2 stops32h 20m

Chicago O'Hare Intl

Wed 30/9

19:15-22:20

2 stops21h 05m

£620

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 7/9

20:55-20:41

3 stops29h 46m

Chicago O'Hare Intl

Mon 14/9

14:15-20:40

2 stops24h 25m

£624

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 23/9

07:30-19:15

2 stops17h 45m

Chicago O'Hare Intl

Wed 30/9

15:45-21:05

2 stops23h 20m

£632

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 7/9

20:55-20:41

3 stops29h 46m

Chicago O'Hare Intl

Mon 14/9

11:05-20:40

3 stops27h 35m

£635

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Fri 25/9

21:10-19:48

2 stops28h 38m

Chicago O'Hare Intl

Fri 2/10

22:25-21:50

2 stops17h 25m

£638

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 23/9

06:10-19:48

2 stops19h 38m

Chicago O'Hare Intl

Wed 30/9

09:55-17:55

3 stops26h 00m

£642

Fastest return journey

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 21/9

06:10-20:12

3 stops20h 02m

Chicago O'Hare Intl

Mon 28/9

19:25-20:55

2 stops19h 30m

£649

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 21/9

20:55-20:41

3 stops29h 46m

Chicago O'Hare Intl

Mon 28/9

14:15-16:15

3 stops20h 00m

£653

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	12h 15m
Direct flights	None

The fastest flight from Belfast Intl Airport to Illinois takes 12h 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

Frequently asked questions about flying from Belfast Intl Airport to Illinois

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.

Frequently asked questions about flying from Belfast Intl Airport to Illinois

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.