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.

£287 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.

22:45 - 22:05

BFS

ORD

29h 20m

2 stops

09:50 - 19:15

ORD

BFS

27h 25m

2 stops

£675Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

07:35 - 14:50

BFS

ORD

37h 15m

3 stops

09:50 - 19:15

ORD

BFS

27h 25m

2 stops

£704Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

22:45 - 16:57

BFS

ORD

24h 12m

2 stops

09:50 - 20:05

ORD

BFS

28h 15m

2 stops

£718Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

06:40 - 22:05

BFS

ORD

21h 25m

2 stops

09:50 - 18:25

ORD

BFS

26h 35m

2 stops

£733Multiple Airlines

Thu, 2 Jul - Sun, 5 Jul

21:05 - 22:05

BFS

ORD

31h 00m

3 stops

09:50 - 18:25

ORD

BFS

26h 35m

2 stops

£762Multiple Airlines

Thu, 2 Jul - Sun, 5 Jul

05:55 - 10:16

BFS

ORD

34h 21m

3 stops

09:50 - 19:15

ORD

BFS

27h 25m

2 stops

£792Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

05:55 - 10:16

BFS

ORD

34h 21m

3 stops

08:45 - 12:05

ORD

BFS

21h 20m

3 stops

£828Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

21:50 - 14:50

BFS

ORD

23h 00m

3 stops

08:45 - 12:05

ORD

BFS

21h 20m

3 stops

£1,038Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

06:50 - 12:40

BFS

ORD

35h 50m

2 stops

17:10 - 11:45

ORD

BFS

12h 35m

1 stop

£1,102Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

06:15 - 15:10

BFS

ORD

14h 55m

1 stop

17:10 - 11:45

ORD

BFS

12h 35m

1 stop

£1,107Multiple Airlines

Wed, 1 Jul - Wed, 8 Jul

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

Wed 1/7

22:45-22:05

2 stops29h 20m

Chicago O'Hare Intl

Wed 8/7

09:50-19:15

2 stops27h 25m

£675

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

07:35-14:50

3 stops37h 15m

Chicago O'Hare Intl

Wed 8/7

09:50-19:15

2 stops27h 25m

£704

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

22:45-16:57

2 stops24h 12m

Chicago O'Hare Intl

Wed 8/7

09:50-20:05

2 stops28h 15m

£718

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 2/7

06:40-22:05

2 stops21h 25m

Chicago O'Hare Intl

Sun 5/7

09:50-18:25

2 stops26h 35m

£733

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 2/7

21:05-22:05

3 stops31h 00m

Chicago O'Hare Intl

Sun 5/7

09:50-18:25

2 stops26h 35m

£762

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

05:55-10:16

3 stops34h 21m

Chicago O'Hare Intl

Wed 8/7

09:50-19:15

2 stops27h 25m

£792

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

05:55-10:16

3 stops34h 21m

Chicago O'Hare Intl

Wed 8/7

08:45-12:05

3 stops21h 20m

£828

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

21:50-14:50

3 stops23h 00m

Chicago O'Hare Intl

Wed 8/7

08:45-12:05

3 stops21h 20m

£1,038

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

06:50-12:40

2 stops35h 50m

Chicago O'Hare Intl

Wed 8/7

17:10-11:45

1 stop12h 35m

£1,102

Fastest return journey

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/7

06:15-15:10

1 stop14h 55m

Chicago O'Hare Intl

Wed 8/7

17:10-11:45

1 stop12h 35m

£1,107

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 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	18h 10m
Direct flights	None

The fastest flight from Belfast Intl Airport to Illinois takes 18h 10m

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.