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Cheap flights from Belfast to Chicago from $421

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 to Chicago departing on 11/25. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Belfast to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:10 am - 2:00 pm
BFS
-
ORD
34h 50m
2 stops
Multiple Airlines Logo
7:25 pm - 10:20 pm
ORD
-
BFS
20h 55m
2 stops
$795Multiple Airlines
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
9:05 pm - 8:12 pm
BFS
-
ORD
29h 07m
3 stops
Multiple Airlines Logo
7:25 pm - 7:40 pm
ORD
-
BFS
18h 15m
2 stops
$827Multiple Airlines
Fri, Sep 25 - Tue, Sep 29
Multiple Airlines Logo
9:35 pm - 8:12 pm
BFS
-
ORD
28h 37m
3 stops
Multiple Airlines Logo
7:25 pm - 4:15 pm
ORD
-
BFS
14h 50m
2 stops
$843Multiple Airlines
Mon, Sep 7 - Mon, Sep 14
Multiple Airlines Logo
6:35 pm - 9:20 pm
BFS
-
ORD
32h 45m
2 stops
Multiple Airlines Logo
7:25 pm - 7:40 pm
ORD
-
BFS
18h 15m
2 stops
$844Multiple Airlines
Fri, Sep 25 - Tue, Sep 29
Multiple Airlines Logo
9:25 pm - 7:48 pm
BFS
-
ORD
28h 23m
3 stops
Multiple Airlines Logo
7:25 pm - 8:40 pm
ORD
-
BFS
19h 15m
2 stops
$847Multiple Airlines
Mon, Sep 7 - Mon, Sep 14
Multiple Airlines Logo
9:35 pm - 8:12 pm
BFS
-
ORD
28h 37m
3 stops
Multiple Airlines Logo
7:25 pm - 10:00 pm
ORD
-
BFS
20h 35m
3 stops
$852Multiple Airlines
Mon, Sep 7 - Mon, Sep 14
British Airways Logo
11:35 am - 6:15 pm
BHD
-
ORD
12h 40m
1 stop
British Airways Logo
5:00 pm - 1:35 pm
ORD
-
BHD
14h 35m
1 stop
$919British Airways
Mon, Sep 21 - Wed, Sep 30
British Airways Logo
9:40 am - 9:12 pm
BHD
-
ORD
17h 32m
2 stops
British Airways Logo
7:05 pm - 12:00 pm
ORD
-
BHD
10h 55m
1 stop
$925British Airways
Mon, Sep 21 - Wed, Sep 30
KLM Logo
9:50 am - 10:32 pm
BHD
-
ORD
18h 42m
2 stops
KLM Logo
12:29 pm - 9:20 am
ORD
-
BHD
14h 51m
2 stops
$985KLM
Fri, Sep 25 - Tue, Sep 29
Aer Lingus Logo
6:50 am - 7:15 pm
BHD
-
ORD
18h 25m
2 stops
Aer Lingus Logo
3:45 pm - 1:10 pm
ORD
-
BHD
15h 25m
2 stops
$1,042Aer Lingus
Sun, Aug 23 - Sun, Aug 30

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British Airways flights from Belfast to Chicago

Our best British Airways deals on Belfast to Chicago flight tickets
British Airways
Sep 21
BHD11:35 amBelfast City
12h 40m
1 stop
ORD6:15 pmChicago O'Hare Intl
Sep 30
ORD5:00 pmChicago O'Hare Intl
14h 35m
1 stop
BHD1:35 pmBelfast City
$919
British Airways
Sep 21
BHD9:40 amBelfast City
17h 32m
2 stops
ORD9:12 pmChicago O'Hare Intl
Sep 30
ORD7:05 pmChicago O'Hare Intl
10h 55m
1 stop
BHD12:00 pmBelfast City
$925
British Airways
Sep 25
BHD6:30 amBelfast City
15h 25m
1 stop
ORD3:55 pmChicago O'Hare Intl
Sep 29
ORD7:05 pmChicago O'Hare Intl
14h 15m
1 stop
BHD3:20 pmBelfast City
$948

KLM flights from Belfast to Chicago

Our best KLM deals on Belfast to Chicago flight tickets
KLM
Sep 25
BHD9:50 amBelfast City
18h 42m
2 stops
ORD10:32 pmChicago O'Hare Intl
Sep 29
ORD12:29 pmChicago O'Hare Intl
14h 51m
2 stops
BHD9:20 amBelfast City
$985
KLM
Aug 23
BHD5:30 pmBelfast City
27h 00m
1 stop
ORD2:30 pmChicago O'Hare Intl
Aug 30
ORD4:20 pmChicago O'Hare Intl
11h 00m
1 stop
BHD9:20 amBelfast City
$1,323

momondo Fare Finder

 
Customize your flight search to find flights from Belfast 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 July 26, 2026.
Use the filters below to find and compare flights from Belfast 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 9/21

9:10 am-2:00 pm

2 stops34h 50m

Chicago O'Hare Intl

Wed 9/30

7:25 pm-10:20 pm

2 stops20h 55m

$795

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 9/25

9:05 pm-8:12 pm

3 stops29h 07m

Chicago O'Hare Intl

Tue 9/29

7:25 pm-7:40 pm

2 stops18h 15m

$827

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 9/7

9:35 pm-8:12 pm

3 stops28h 37m

Chicago O'Hare Intl

Mon 9/14

7:25 pm-4:15 pm

2 stops14h 50m

$843

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 9/25

6:35 pm-9:20 pm

2 stops32h 45m

Chicago O'Hare Intl

Tue 9/29

7:25 pm-7:40 pm

2 stops18h 15m

$844

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 9/7

9:25 pm-7:48 pm

3 stops28h 23m

Chicago O'Hare Intl

Mon 9/14

7:25 pm-8:40 pm

2 stops19h 15m

$847

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 9/7

9:35 pm-8:12 pm

3 stops28h 37m

Chicago O'Hare Intl

Mon 9/14

7:25 pm-10:00 pm

3 stops20h 35m

$852
Quickest round-trip

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 9/21

11:35 am-6:15 pm

1 stop12h 40m

Chicago O'Hare Intl

Wed 9/30

5:00 pm-1:35 pm

1 stop14h 35m

$919

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 9/21

9:40 am-9:12 pm

2 stops17h 32m

Chicago O'Hare Intl

Wed 9/30

7:05 pm-12:00 pm

1 stop10h 55m

$925

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 9/25

9:50 am-10:32 pm

2 stops18h 42m

Chicago O'Hare Intl

Tue 9/29

12:29 pm-9:20 am

2 stops14h 51m

$985

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 8/23

6:50 am-7:15 pm

2 stops18h 25m

Chicago O'Hare Intl

Sun 8/30

3:45 pm-1:10 pm

2 stops15h 25m

$1,042

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Belfast to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Belfast to Chicago?

British Airways and Aer Lingus are the most popular carriers operating from Belfast to Chicago

Cheap Belfast to Chicago flight deals and tips

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

Fastest flight time

12h 40m

Direct flights

None
The fastest flight from Belfast to Chicago takes 12h 40m
There are no direct flights from Belfast to Chicago. There are no popular flight routes from Belfast to Chicago.
Search flight deals

Frequently asked questions about flying from Belfast to Chicago

  • How far is Belfast to Chicago by plane?

    There are 3636.7 mi between Belfast and Chicago. 12h 40m is a normal flight duration for this route.

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

    Prices for flights from Belfast to Chicago were last updated today.

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

    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 to Chicago.

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

    The necessary travel and health documents for your Chicago 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.

Traveling to a place near Chicago?

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

Why use momondo?

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

Finding the right flight to Chicago from Belfast is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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?

momondo helps you find the best flight between Belfast and Chicago 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 Chicago right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Belfast and alert you when they change.

An easier way to manage your Chicago trip

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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