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

Confirm your travel details to search for the latest offers for flights from Belfast Intl Airport to Illinois . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

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?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$389 Cheap Flights from Belfast Intl Airport to Illinois in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Belfast Intl Airport to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 9:00 pm

BFS

ORD

18h 30m

2 stops

9:50 pm - 11:55 pm

ORD

BFS

20h 05m

1 stop

$1,005Multiple Airlines

Thu, Mar 26 - Thu, Apr 2

9:45 am - 4:00 pm

BFS

ORD

35h 15m

2 stops

9:06 am - 8:35 pm

ORD

BFS

29h 29m

2 stops

$1,035Multiple Airlines

Thu, Mar 26 - Thu, Apr 2

7:50 pm - 12:22 am

BFS

ORD

33h 32m

3 stops

7:25 pm - 8:40 pm

ORD

BFS

19h 15m

2 stops

$1,040Multiple Airlines

Sat, Mar 28 - Sat, Apr 4

9:45 am - 4:00 pm

BFS

ORD

35h 15m

2 stops

4:20 pm - 9:40 pm

ORD

BFS

23h 20m

3 stops

$1,064Multiple Airlines

Thu, Mar 26 - Thu, Apr 2

2:05 pm - 7:50 pm

BFS

ORD

34h 45m

2 stops

7:25 pm - 8:40 pm

ORD

BFS

19h 15m

2 stops

$1,212Multiple Airlines

Sat, Mar 28 - Sat, Apr 4

7:50 pm - 12:22 am

BFS

ORD

33h 32m

3 stops

7:25 pm - 10:40 pm

ORD

BFS

21h 15m

3 stops

$1,234Multiple Airlines

Sat, Mar 28 - Sat, Apr 4

6:30 am - 12:22 am

BFS

ORD

46h 52m

3 stops

4:20 pm - 9:40 pm

ORD

BFS

23h 20m

3 stops

$1,284Multiple Airlines

Thu, Mar 26 - Thu, Apr 2

6:30 am - 1:25 pm

BFS

ORD

12h 55m

2 stops

5:35 pm - 8:40 pm

ORD

BFS

21h 05m

2 stops

$1,440Multiple Airlines

Mon, Jun 15 - Mon, Jun 15

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

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 3/26

7:30 am-9:00 pm

2 stops18h 30m

Chicago O'Hare Intl

Thu 4/2

9:50 pm-11:55 pm

1 stop20h 05m

$1,005

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 3/26

9:45 am-4:00 pm

2 stops35h 15m

Chicago O'Hare Intl

Thu 4/2

9:06 am-8:35 pm

2 stops29h 29m

$1,035

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 3/28

7:50 pm-12:22 am

3 stops33h 32m

Chicago O'Hare Intl

Sat 4/4

7:25 pm-8:40 pm

2 stops19h 15m

$1,040

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 3/26

9:45 am-4:00 pm

2 stops35h 15m

Chicago O'Hare Intl

Thu 4/2

4:20 pm-9:40 pm

3 stops23h 20m

$1,064

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 3/28

2:05 pm-7:50 pm

2 stops34h 45m

Chicago O'Hare Intl

Sat 4/4

7:25 pm-8:40 pm

2 stops19h 15m

$1,212

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 3/28

7:50 pm-12:22 am

3 stops33h 32m

Chicago O'Hare Intl

Sat 4/4

7:25 pm-10:40 pm

3 stops21h 15m

$1,234

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 3/26

6:30 am-12:22 am

3 stops46h 52m

Chicago O'Hare Intl

Thu 4/2

4:20 pm-9:40 pm

3 stops23h 20m

$1,284

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 6/15

6:30 am-1:25 pm

2 stops12h 55m

Chicago O'Hare Intl

Mon 6/15

5:35 pm-8:40 pm

2 stops21h 05m

$1,440

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 4/29

8:30 am-5:50 pm

3 stops39h 20m

$389

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 4/29

8:15 pm-10:43 pm

2 stops32h 28m

$438

Flights are sorted by cheapest round-trip 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	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?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek 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?
Confirm your travel details to search for the latest offers for flights from Belfast Intl Airport to Illinois. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
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?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Belfast to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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 can track prices for Belfast to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.