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Cheap flights from Chicago O'Hare Intl Airport to Belfast from $313

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Belfast departing on 11/13. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 4:20 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
14h 55m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
6:40 am - 6:15 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
41h 35m3 stops London Stansted Milan Malpensa Reykjavik Keflavik Intl
$760Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
7:25 pm - 7:30 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
18h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
9:10 pm - 9:25 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
30h 15m3 stops Newcastle upon Tyne Gdansk Rebiechowo Reykjavik Keflavik Intl
$769Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
7:25 pm - 11:20 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
21h 55m3 stops Reykjavik Keflavik Intl Glasgow Intl London Stansted
Multiple Airlines Logo
6:40 am - 6:15 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
41h 35m3 stops London Stansted Milan Malpensa Reykjavik Keflavik Intl
$789Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
7:25 pm - 10:25 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
21h 00m3 stops Reykjavik Keflavik Intl Manchester Amsterdam Schiphol
Multiple Airlines Logo
9:10 pm - 9:25 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
30h 15m3 stops Newcastle upon Tyne Gdansk Rebiechowo Reykjavik Keflavik Intl
$816Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
7:25 pm - 7:30 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
18h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
10:20 am - 6:15 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
13h 55m2 stops Manchester Reykjavik Keflavik Intl
$837Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
7:25 pm - 9:50 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
20h 25m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
8:25 pm - 2:15 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
47h 50m3 stops London Stansted Barcelona-El Prat Amsterdam Schiphol
$853Multiple Airlines
Fri, Sep 25 - Fri, Oct 2
Multiple Airlines Logo
7:25 pm - 5:50 pmORD  Chicago O'Hare Intl-BHD Belfast City
16h 25m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
7:00 am - 7:48 pmBHD  Belfast City-ORD Chicago O'Hare Intl
18h 48m2 stops London Gatwick Toronto Pearson Intl
$857Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
7:25 pm - 7:40 pmORD  Chicago O'Hare Intl-BFS Belfast Intl
18h 15m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
10:30 am - 6:15 pmBFS  Belfast Intl-ORD Chicago O'Hare Intl
13h 45m2 stops Glasgow Intl Reykjavik Keflavik Intl
$860Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
British Airways Logo
5:10 pm - 10:20 amORD  Chicago O'Hare Intl-BHD Belfast City
11h 10m1 stop London Heathrow
British Airways Logo
7:40 am - 1:45 pmBHD  Belfast City-ORD Chicago O'Hare Intl
12h 05m1 stop London Heathrow
$886British Airways
Sun, Nov 15 - Thu, Nov 19
British Airways Logo
5:10 pm - 10:45 amORD  Chicago O'Hare Intl-BHD Belfast City
11h 35m1 stop London Heathrow
British Airways Logo
7:40 am - 1:45 pmBHD  Belfast City-ORD Chicago O'Hare Intl
12h 05m1 stop London Heathrow
$896British Airways
Sun, Nov 15 - Thu, Nov 19

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British Airways flights from Chicago O'Hare Intl Airport to Belfast

Our best British Airways deals on Chicago O'Hare Intl Airport to Belfast flight tickets
British Airways
Nov 15
ORD5:10 pmChicago O'Hare Intl
11h 10m
1 stop
BHD10:20 amBelfast City
Nov 19
BHD7:40 amBelfast City
12h 05m
1 stop
ORD1:45 pmChicago O'Hare Intl
$886
British Airways
Nov 15
ORD5:10 pmChicago O'Hare Intl
11h 35m
1 stop
BHD10:45 amBelfast City
Nov 19
BHD7:40 amBelfast City
12h 05m
1 stop
ORD1:45 pmChicago O'Hare Intl
$896
British Airways
Sep 22
ORD5:00 pmChicago O'Hare Intl
11h 45m
1 stop
BHD10:45 amBelfast City
Sep 29
BHD9:40 amBelfast City
12h 15m
1 stop
ORD3:55 pmChicago O'Hare Intl
$920

American Airlines flights from Chicago O'Hare Intl Airport to Belfast

Our best American Airlines deals on Chicago O'Hare Intl Airport to Belfast flight tickets
American Airlines
Sep 27
ORD8:50 pmChicago O'Hare Intl
11h 45m
1 stop
BHD2:35 pmBelfast City
Oct 4
BHD6:30 amBelfast City
16h 45m
1 stop
ORD5:15 pmChicago O'Hare Intl
$993
American Airlines
Sep 27
ORD1:35 pmChicago O'Hare Intl
14h 55m
2 stops
BHD10:30 amBelfast City
Oct 4
BHD11:00 amBelfast City
12h 15m
1 stop
ORD5:15 pmChicago O'Hare Intl
$998
American Airlines
Sep 27
ORD8:50 pmChicago O'Hare Intl
11h 45m
1 stop
BHD2:35 pmBelfast City
Oct 4
BHD6:30 amBelfast City
11h 55m
1 stop
ORD12:25 pmChicago O'Hare Intl
$999

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Belfast 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 August 14, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 9/22

7:25 pm-4:20 pm

2 stops14h 55m

Belfast Intl

Tue 9/29

6:40 am-6:15 pm

3 stops41h 35m

$760

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Thu 9/24

7:25 pm-7:30 pm

2 stops18h 05m

Belfast Intl

Thu 10/1

9:10 pm-9:25 pm

3 stops30h 15m

$769

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 9/22

7:25 pm-11:20 pm

3 stops21h 55m

Belfast Intl

Tue 9/29

6:40 am-6:15 pm

3 stops41h 35m

$789

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Thu 9/24

7:25 pm-10:25 pm

3 stops21h 00m

Belfast Intl

Thu 10/1

9:10 pm-9:25 pm

3 stops30h 15m

$816

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Thu 9/24

7:25 pm-7:30 pm

2 stops18h 05m

Belfast Intl

Thu 10/1

10:20 am-6:15 pm

2 stops13h 55m

$837

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Fri 9/25

7:25 pm-9:50 pm

2 stops20h 25m

Belfast Intl

Fri 10/2

8:25 pm-2:15 pm

3 stops47h 50m

$853

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Tue 9/22

7:25 pm-5:50 pm

2 stops16h 25m

Belfast City

Tue 9/29

7:00 am-7:48 pm

2 stops18h 48m

$857

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 9/22

7:25 pm-7:40 pm

2 stops18h 15m

Belfast Intl

Tue 9/29

10:30 am-6:15 pm

2 stops13h 45m

$860
Quickest round-trip

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 11/15

5:10 pm-10:20 am

1 stop11h 10m

Belfast City

Thu 11/19

7:40 am-1:45 pm

1 stop12h 05m

$886

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 11/15

5:10 pm-10:45 am

1 stop11h 35m

Belfast City

Thu 11/19

7:40 am-1:45 pm

1 stop12h 05m

$896

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 Belfast from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Belfast

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 Chicago O'Hare Intl to Belfast?

British Airways and Aer Lingus are the most popular carriers operating from Chicago O'Hare Intl to Belfast

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

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

Fastest flight time

11h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Belfast takes 11h 35m
There are no direct flights from Chicago O'Hare Intl Airport to Belfast. There are no popular flight routes from Chicago O'Hare Intl Airport to Belfast.
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Frequently asked questions about flying from Chicago O'Hare Intl Airport to Belfast

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

    Belfast is 3642.0 mi away from Chicago O'Hare Intl. Typically, this will take 11h 35m by plane in normal conditions.

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

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

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Belfast?

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

    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 Chicago O'Hare Intl Airport to Belfast.

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

    The necessary travel and health documents for your Belfast 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.

Best airlines flying from Chicago O'Hare Intl Airport to Belfast

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $629Free CancellationRating
6.7
8,156 reviews
Search British Airways flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Belfast from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

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

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

Of course. momondo tracks the price of Chicago to Belfast 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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport