Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Belfast Intl Airport to Chicago from $542

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to Chicago departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Belfast Intl Airport to Chicago (BFS-ORD)

Cheap round-trip flights

Logo
6:15 am - 9:15 pmBFS-ORD
21h 00m2 stops
Logo
7:25 pm - 11:00 pmORD-BFS
21h 35m2 stops
$542
Find Deal
vie., sep. 12 - lun., sep. 22
Logo
6:15 am - 6:15 pmBFS-ORD
18h 00m1 stop
Logo
10:35 pm - 11:00 pmORD-BFS
18h 25m1 stop
$733
Find Deal
vie., sep. 12 - lun., sep. 22
Logo
9:05 pm - 10:11 pmBFS-ORD
31h 06m2 stops
Logo
7:15 pm - 2:20 pmORD-BFS
13h 05m1 stop
$905
Find Deal
vie., sep. 12 - lun., sep. 22
Logo
4:50 pm - 4:25 pmBFS-ORD
29h 35m2 stops
Logo
6:15 pm - 11:05 pmORD-BFS
22h 50m3 stops
$908
Find Deal
sáb., sep. 20 - sáb., sep. 27
Logo
3:25 pm - 4:25 pmBFS-ORD
31h 00m3 stops
Logo
6:15 pm - 11:05 pmORD-BFS
22h 50m3 stops
$955
Find Deal
sáb., sep. 20 - sáb., sep. 27
Logo
8:35 am - 7:00 pmBFS-ORD
16h 25m2 stops
Logo
3:45 pm - 3:30 pmORD-BFS
17h 45m2 stops
$959
Find Deal
sáb., sep. 20 - sáb., sep. 27
Logo
10:55 am - 12:30 pmBFS-ORD
31h 35m2 stops
Logo
10:27 am - 3:50 pmORD-BFS
23h 23m2 stops
$1,060
Find Deal
lun., sep. 8 - lun., sep. 15
Logo
10:55 am - 12:30 pmBFS-ORD
31h 35m2 stops
Logo
11:25 am - 11:00 pmORD-BFS
29h 35m3 stops
$1,079
Find Deal
lun., sep. 8 - lun., sep. 15
Logo
9:50 am - 9:15 pmBFS-ORD
17h 25m2 stops
Logo
12:00 pm - 11:20 amORD-BFS
17h 20m3 stops
$1,240
Find Deal
vie., sep. 12 - lun., sep. 22

momondo Fare Finder

 
Customize your flight search to find flights from Belfast Intl Airport to Chicago O'Hare Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated agosto 7, 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

vie. 9/12

6:15 am-9:15 pm

2 stops21h 00m

Chicago O'Hare Intl

lun. 9/22

7:25 pm-11:00 pm

2 stops21h 35m

$542

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

vie. 9/12

6:15 am-6:15 pm

1 stop18h 00m

Chicago O'Hare Intl

lun. 9/22

10:35 pm-11:00 pm

1 stop18h 25m

$733

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

vie. 9/12

9:05 pm-10:11 pm

2 stops31h 06m

Chicago O'Hare Intl

lun. 9/22

7:15 pm-2:20 pm

1 stop13h 05m

$905

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

sáb. 9/20

4:50 pm-4:25 pm

2 stops29h 35m

Chicago O'Hare Intl

sáb. 9/27

6:15 pm-11:05 pm

3 stops22h 50m

$908

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

sáb. 9/20

3:25 pm-4:25 pm

3 stops31h 00m

Chicago O'Hare Intl

sáb. 9/27

6:15 pm-11:05 pm

3 stops22h 50m

$955

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

sáb. 9/20

8:35 am-7:00 pm

2 stops16h 25m

Chicago O'Hare Intl

sáb. 9/27

3:45 pm-3:30 pm

2 stops17h 45m

$959

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

lun. 9/8

10:55 am-12:30 pm

2 stops31h 35m

Chicago O'Hare Intl

lun. 9/15

10:27 am-3:50 pm

2 stops23h 23m

$1,060

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

lun. 9/8

10:55 am-12:30 pm

2 stops31h 35m

Chicago O'Hare Intl

lun. 9/15

11:25 am-11:00 pm

3 stops29h 35m

$1,079

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

vie. 9/12

9:50 am-9:15 pm

2 stops17h 25m

Chicago O'Hare Intl

lun. 9/22

12:00 pm-11:20 am

3 stops17h 20m

$1,240

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Belfast Intl Airport to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Belfast Intl Airport to Chicago O'Hare Intl Airport (BFS to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to Chicago O'Hare Intl Airport

Best Price Found

$542

Fastest flight time

16h 25m

Direct flights

None
The best flight deal from Belfast Intl Airport to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $542
The fastest flight from Belfast Intl Airport to Chicago O'Hare Intl Airport takes 16h 25m
There are no direct flights from Belfast Intl Airport to Chicago O'Hare Intl Airport. Popular non-direct route for this connection is Belfast Intl Airport - Chicago O'Hare Intl Airport.
Search flight deals

  • How far is Belfast Intl to Chicago O'Hare Intl by plane?

    The straight-line distance from Belfast Intl to Chicago O'Hare Intl is 3629.9 mi. Typically, this will take 16h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport were last updated today.

  • How old do you have to be to fly from Belfast Intl Airport to Chicago O'Hare Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast Intl Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport?

    Price Alerts will notify you by email when the price for flights to Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Rockford
Schaumburg
South Haven
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Hammond
Tinley Park
Elgin
Orland Park
Aurora
Janesville
Benton Harbor

Why use momondo?

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

It is quick and easy to find Belfast to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

Flights from Belfast to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Belfast to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Belfast to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mar. 8/12
mar. 8/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago