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Cheap flights from Belfast to Chicago from $306

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 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Logo
7:00 am - 9:15 pmBFS-ORD
44h 15m2 stops
Logo
7:25 pm - 9:30 pmORD-BFS
20h 05m2 stops
$692
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Tue, Oct 7 - Sat, Oct 11
Logo
9:55 am - 9:15 pmBFS-ORD
17h 20m2 stops
Logo
7:25 pm - 8:20 pmORD-BFS
18h 55m2 stops
$700
Find Deal
Sun, Sep 14 - Sun, Sep 21
Logo
7:15 am - 7:00 pmBFS-ORD
17h 45m2 stops
Logo
9:15 pm - 10:20 pmORD-BFS
19h 05m2 stops
$778
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Sun, Sep 7 - Sun, Sep 7
Logo
7:55 pm - 12:35 pmBFS-ORD
46h 40m3 stops
Logo
3:50 pm - 10:30 pmORD-BFS
24h 40m2 stops
$812
Find Deal
Tue, Oct 7 - Sat, Oct 11
Logo
7:55 pm - 12:35 pmBFS-ORD
46h 40m3 stops
Logo
10:40 am - 10:30 pmORD-BFS
29h 50m3 stops
$833
Find Deal
Tue, Oct 7 - Sat, Oct 11
Virgin Atlantic Logo
6:30 am - 6:10 pmBHD-ORD
17h 40m2 stops
Virgin Atlantic Logo
6:21 pm - 4:55 pmORD-BHD
40h 34m2 stops
$839Virgin Atlantic
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Tue, Oct 7 - Sat, Oct 11
Logo
7:35 am - 7:00 pmBFS-ORD
17h 25m2 stops
Logo
3:45 pm - 10:55 amORD-BFS
13h 10m2 stops
$926
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
6:10 am - 9:18 amBFS-ORD
33h 08m3 stops
Logo
6:00 pm - 8:20 pmORD-BFS
20h 20m2 stops
$946
Find Deal
Sun, Sep 14 - Sun, Sep 21
Logo
7:05 am - 7:29 pmBHD-ORD
18h 24m3 stops
Logo
3:50 pm - 9:10 pmORD-BHD
23h 20m2 stops
$948
Find Deal
Tue, Oct 7 - Sat, Oct 11
Finnair Logo
8:20 pm - 2:40 pmBHD-ORD
24h 20m1 stop
Finnair Logo
4:50 pm - 11:30 amORD-BHD
36h 40m2 stops
$973Finnair
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Tue, Oct 7 - Sat, Oct 11

momondo Fare Finder

 
Customize your flight search to find flights from Belfast 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 July 31, 2025.
Use the filters below to find and compare flights from Belfast 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

Tue 10/7

7:00 am-9:15 pm

2 stops44h 15m

Chicago O'Hare Intl

Sat 10/11

7:25 pm-9:30 pm

2 stops20h 05m

$692

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 9/14

9:55 am-9:15 pm

2 stops17h 20m

Chicago O'Hare Intl

Sun 9/21

7:25 pm-8:20 pm

2 stops18h 55m

$700

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 9/7

7:15 am-7:00 pm

2 stops17h 45m

Chicago O'Hare Intl

Sun 9/7

9:15 pm-10:20 pm

2 stops19h 05m

$778

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 10/7

7:55 pm-12:35 pm

3 stops46h 40m

Chicago O'Hare Intl

Sat 10/11

3:50 pm-10:30 pm

2 stops24h 40m

$812

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 10/7

7:55 pm-12:35 pm

3 stops46h 40m

Chicago O'Hare Intl

Sat 10/11

10:40 am-10:30 pm

3 stops29h 50m

$833

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 10/7

6:30 am-6:10 pm

2 stops17h 40m

Chicago O'Hare Intl

Sat 10/11

6:21 pm-4:55 pm

2 stops40h 34m

$839

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 9/12

7:35 am-7:00 pm

2 stops17h 25m

Chicago O'Hare Intl

Fri 9/19

3:45 pm-10:55 am

2 stops13h 10m

$926

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 9/14

6:10 am-9:18 am

3 stops33h 08m

Chicago O'Hare Intl

Sun 9/21

6:00 pm-8:20 pm

2 stops20h 20m

$946

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 10/7

7:05 am-7:29 pm

3 stops18h 24m

Chicago O'Hare Intl

Sat 10/11

3:50 pm-9:10 pm

2 stops23h 20m

$948

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 10/7

8:20 pm-2:40 pm

1 stop24h 20m

Chicago O'Hare Intl

Sat 10/11

4:50 pm-11:30 am

2 stops36h 40m

$973

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 O'Hare Intl Airport

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 O'Hare Intl?

British Airways is the most popular carrier operating from Belfast to Chicago O'Hare Intl

Cheap Belfast to Chicago O'Hare Intl Airport flight deals and tips

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

Best Price Found

$306

Fastest flight time

12h 15m

Direct flights

None
The best one-way flight to Chicago O'Hare Intl Airport from Belfast in the past 72 hours is $306. The best round-trip flight deal from Belfast to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $692.
The fastest flight from Belfast to Chicago O'Hare Intl Airport takes 12h 15m
There are no direct flights from Belfast to Chicago O'Hare Intl Airport. Popular non-direct routes for this connection are Belfast Intl Airport - Chicago O'Hare Intl Airport and Belfast City Airport - Chicago O'Hare Intl Airport.
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  • How far is Belfast to Chicago O'Hare Intl by plane?

    Chicago O'Hare Intl is 3642.0 mi away from Belfast. By plane, this route typically takes 13h 35m.

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

    Prices for flights from Belfast to Chicago O'Hare Intl Airport are updated daily.

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

    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 to Chicago O'Hare Intl Airport.

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

    The travel and health documents required for your trip to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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?

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 Chicago from Belfast.

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 provides multiple filters to help you find the best flight to Chicago from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Belfast to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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