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Cheap flights from Chicago O'Hare Intl Airport to Belfast from $278

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 3/18. 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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0 bags

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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
6:30 pm - 1:25 pm
ORD
-
BFS
12h 55m
2 stops
Multiple Airlines Logo
6:00 am - 5:20 pm
BFS
-
ORD
17h 20m
2 stops
$604Multiple Airlines
Tue, Mar 3 - Sat, Mar 7
British Airways Logo
7:05 pm - 3:30 pm
ORD
-
BHD
14h 25m
1 stop
British Airways Logo
7:35 pm - 1:50 pm
BHD
-
ORD
24h 15m
1 stop
$666British Airways
Mon, May 4 - Mon, May 11
British Airways Logo
7:05 pm - 8:50 am
ORD
-
BHD
31h 45m
1 stop
British Airways Logo
6:30 am - 3:55 pm
BHD
-
ORD
15h 25m
1 stop
$676British Airways
Sun, Mar 29 - Thu, Apr 9
British Airways Logo
9:15 pm - 7:35 am
ORD
-
BHD
28h 20m
1 stop
British Airways Logo
7:40 pm - 1:50 pm
BHD
-
ORD
24h 10m
1 stop
$677British Airways
Sun, May 3 - Wed, May 13
British Airways Logo
3:16 pm - 3:20 pm
ORD
-
BHD
18h 04m
2 stops
British Airways Logo
8:35 pm - 1:50 pm
BHD
-
ORD
23h 15m
1 stop
$683British Airways
Tue, May 5 - Wed, May 13
Delta Logo
4:50 pm - 4:55 pm
ORD
-
BHD
18h 05m
1 stop
Delta Logo
5:30 pm - 2:15 pm
BHD
-
ORD
26h 45m
1 stop
$686Delta
Wed, May 6 - Thu, May 14
Delta Logo
4:50 pm - 4:55 pm
ORD
-
BHD
18h 05m
1 stop
Delta Logo
5:30 pm - 2:15 pm
BHD
-
ORD
26h 45m
1 stop
$687Delta
Mon, Mar 30 - Thu, Apr 9
British Airways Logo
7:05 pm - 3:30 pm
ORD
-
BHD
14h 25m
1 stop
British Airways Logo
7:35 pm - 5:04 pm
BHD
-
ORD
27h 29m
2 stops
$688British Airways
Mon, May 4 - Mon, May 11
Delta Logo
1:57 pm - 4:55 pm
ORD
-
BHD
20h 58m
2 stops
Delta Logo
5:30 pm - 2:15 pm
BHD
-
ORD
26h 45m
1 stop
$691Delta
Mon, Mar 30 - Thu, Apr 9
Multiple Airlines Logo
7:15 am - 1:25 pm
ORD
-
BFS
24h 10m
3 stops
Multiple Airlines Logo
10:25 pm - 6:25 pm
BFS
-
ORD
26h 00m
2 stops
$710Multiple Airlines
Tue, Mar 3 - Sat, Mar 7

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
May 4
ORD7:05 pmChicago O'Hare Intl
14h 25m
1 stop
BHD3:30 pmBelfast City
May 11
BHD7:35 pmBelfast City
24h 15m
1 stop
ORD1:50 pmChicago O'Hare Intl
$666
British Airways
Mar 29
ORD7:05 pmChicago O'Hare Intl
31h 45m
1 stop
BHD8:50 amBelfast City
Apr 9
BHD6:30 amBelfast City
15h 25m
1 stop
ORD3:55 pmChicago O'Hare Intl
$676
British Airways
May 3
ORD9:15 pmChicago O'Hare Intl
28h 20m
1 stop
BHD7:35 amBelfast City
May 12
BHD8:25 pmBelfast City
23h 25m
1 stop
ORD1:50 pmChicago O'Hare Intl
$677

Delta flights from Chicago O'Hare Intl Airport to Belfast

Our best Delta deals on Chicago O'Hare Intl Airport to Belfast flight tickets
Delta
May 6
ORD4:50 pmChicago O'Hare Intl
18h 05m
1 stop
BHD4:55 pmBelfast City
May 14
BHD5:30 pmBelfast City
26h 45m
1 stop
ORD2:15 pmChicago O'Hare Intl
$686
Delta
Mar 30
ORD4:50 pmChicago O'Hare Intl
18h 05m
1 stop
BHD4:55 pmBelfast City
Apr 9
BHD5:30 pmBelfast City
26h 45m
1 stop
ORD2:15 pmChicago O'Hare Intl
$687
Delta
Mar 30
ORD1:57 pmChicago O'Hare Intl
20h 58m
2 stops
BHD4:55 pmBelfast City
Apr 14
BHD5:30 pmBelfast City
27h 00m
1 stop
ORD2:30 pmChicago O'Hare Intl
$691

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 February 15, 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

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 3/3

6:30 pm-1:25 pm

2 stops12h 55m

Belfast Intl

Sat 3/7

6:00 am-5:20 pm

2 stops17h 20m

$604

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/4

7:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Mon 5/11

7:35 pm-1:50 pm

1 stop24h 15m

$666

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/29

7:05 pm-8:50 am

1 stop31h 45m

Belfast City

Thu 4/9

6:30 am-3:55 pm

1 stop15h 25m

$676

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 5/3

9:15 pm-7:35 am

1 stop28h 20m

Belfast City

Wed 5/13

7:40 pm-1:50 pm

1 stop24h 10m

$677

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 5/5

3:16 pm-3:20 pm

2 stops18h 04m

Belfast City

Wed 5/13

8:35 pm-1:50 pm

1 stop23h 15m

$683

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 5/6

4:50 pm-4:55 pm

1 stop18h 05m

Belfast City

Thu 5/14

5:30 pm-2:15 pm

1 stop26h 45m

$686

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 3/30

4:50 pm-4:55 pm

1 stop18h 05m

Belfast City

Thu 4/9

5:30 pm-2:15 pm

1 stop26h 45m

$687

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/4

7:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Mon 5/11

7:35 pm-5:04 pm

2 stops27h 29m

$688

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 3/30

1:57 pm-4:55 pm

2 stops20h 58m

Belfast City

Thu 4/9

5:30 pm-2:15 pm

1 stop26h 45m

$691

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 3/3

7:15 am-1:25 pm

3 stops24h 10m

Belfast Intl

Sat 3/7

10:25 pm-6:25 pm

2 stops26h 00m

$710

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?

Aer Lingus is the most popular carrier 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

14h 10m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Belfast takes 14h 10m
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.
Search flight deals

  • 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 14h 10m 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 $577Free CancellationRating
6.7
7,749 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