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Cheap flights from Belfast Intl Airport to Chicago from $452

This is the cheapest one-way 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 6/23. 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

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Find the cheapest flights from Belfast Intl Airport to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:15 am - 9:36 am
BFS
-
ORD
31h 21m
3 stops
Multiple Airlines Logo
7:25 pm - 4:15 pm
ORD
-
BFS
14h 50m
2 stops
$765Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
8:15 am - 11:07 pm
BFS
-
ORD
20h 52m
2 stops
Multiple Airlines Logo
7:25 pm - 4:15 pm
ORD
-
BFS
14h 50m
2 stops
$789Multiple Airlines
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
8:50 am - 9:25 pm
BFS
-
ORD
42h 35m
3 stops
Multiple Airlines Logo
7:25 pm - 4:20 pm
ORD
-
BFS
14h 55m
2 stops
$856Multiple Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
8:50 am - 9:25 pm
BFS
-
ORD
42h 35m
3 stops
Multiple Airlines Logo
7:25 pm - 11:20 pm
ORD
-
BFS
21h 55m
3 stops
$899Multiple Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
7:15 am - 6:15 pm
BFS
-
ORD
17h 00m
2 stops
Multiple Airlines Logo
7:25 pm - 4:20 pm
ORD
-
BFS
14h 55m
2 stops
$992Multiple Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
6:40 am - 6:15 pm
BFS
-
ORD
17h 35m
2 stops
Multiple Airlines Logo
7:25 pm - 9:45 pm
ORD
-
BFS
20h 20m
2 stops
$1,016Multiple Airlines
Mon, Jun 29 - Wed, Jul 15
Multiple Airlines Logo
11:10 am - 11:50 am
BFS
-
ORD
30h 40m
2 stops
Multiple Airlines Logo
10:25 pm - 10:15 pm
ORD
-
BFS
17h 50m
2 stops
$1,154Multiple Airlines
Sat, Aug 1 - Tue, Aug 4
Multiple Airlines Logo
11:10 am - 11:50 am
BFS
-
ORD
30h 40m
2 stops
Multiple Airlines Logo
8:45 am - 3:15 pm
ORD
-
BFS
24h 30m
3 stops
$1,177Multiple Airlines
Sat, Aug 1 - Tue, Aug 4
Multiple Airlines Logo
5:35 pm - 10:05 pm
BFS
-
ORD
34h 30m
3 stops
Multiple Airlines Logo
5:35 pm - 2:30 pm
ORD
-
BFS
14h 55m
2 stops
$1,186Multiple Airlines
Mon, Jun 29 - Wed, Jul 15
Multiple Airlines Logo
5:35 pm - 10:05 pm
BFS
-
ORD
34h 30m
3 stops
Multiple Airlines Logo
8:45 am - 2:30 pm
ORD
-
BFS
23h 45m
3 stops
$1,197Multiple Airlines
Mon, Jun 29 - Wed, Jul 15

momondo Fare Finder

 
Customize your flight search to find flights from Belfast Intl Airport to Chicago 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 March 27, 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 4/27

8:15 am-9:36 am

3 stops31h 21m

Chicago O'Hare Intl

Mon 5/4

7:25 pm-4:15 pm

2 stops14h 50m

$765

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 4/27

8:15 am-11:07 pm

2 stops20h 52m

Chicago O'Hare Intl

Mon 5/4

7:25 pm-4:15 pm

2 stops14h 50m

$789

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 9/1

8:50 am-9:25 pm

3 stops42h 35m

Chicago O'Hare Intl

Tue 9/29

7:25 pm-4:20 pm

2 stops14h 55m

$856

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 9/1

8:50 am-9:25 pm

3 stops42h 35m

Chicago O'Hare Intl

Tue 9/29

7:25 pm-11:20 pm

3 stops21h 55m

$899
Quickest round-trip

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 9/1

7:15 am-6:15 pm

2 stops17h 00m

Chicago O'Hare Intl

Tue 9/29

7:25 pm-4:20 pm

2 stops14h 55m

$992

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 6/29

6:40 am-6:15 pm

2 stops17h 35m

Chicago O'Hare Intl

Wed 7/15

7:25 pm-9:45 pm

2 stops20h 20m

$1,016

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 8/1

11:10 am-11:50 am

2 stops30h 40m

Chicago O'Hare Intl

Tue 8/4

10:25 pm-10:15 pm

2 stops17h 50m

$1,154

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 8/1

11:10 am-11:50 am

2 stops30h 40m

Chicago O'Hare Intl

Tue 8/4

8:45 am-3:15 pm

3 stops24h 30m

$1,177

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 6/29

5:35 pm-10:05 pm

3 stops34h 30m

Chicago O'Hare Intl

Wed 7/15

5:35 pm-2:30 pm

2 stops14h 55m

$1,186

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 6/29

5:35 pm-10:05 pm

3 stops34h 30m

Chicago O'Hare Intl

Wed 7/15

8:45 am-2:30 pm

3 stops23h 45m

$1,197

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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When to book flights from Belfast Intl Airport to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Chicago 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 (BFS to CHI) flight deals and tips

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

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Belfast Intl Airport to Chicago takes 13h 15m
There are no direct flights from Belfast Intl Airport to Chicago. There are no popular flight routes from Belfast Intl Airport to Chicago.
Search flight deals

  • How far is Belfast Intl to Chicago by plane?

    Chicago is 3624.6 mi away from Belfast Intl. Flights usually cover this in 13h 15m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Belfast Intl Airport to Chicago are refreshed on a daily basis.

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

    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.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

    Search flight deals from Belfast Intl Airport to Chicago. While viewing offers you’ll have the option to create a Price Alert.

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

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Saint Joseph
Benton Harbor
Portage
Lansing
Valparaiso
Schererville
Munster
Crown Point
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to Chicago for you.

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

momondo does allow users to show only those flights to Chicago 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 Chicago?

Once you have performed a search for Belfast to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Chicago from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport