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Cheap flights from Belfast to Chicago from £323

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 24/9. 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 to Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:00 - 18:15
BFS
-
ORD
30h 15m
2 stops
Multiple Airlines Logo
22:25 - 19:55
ORD
-
BFS
15h 30m
2 stops
£605Multiple Airlines
Sun, 21 Jun - Sun, 28 Jun
Multiple Airlines Logo
08:30 - 19:15
BFS
-
ORD
40h 45m
3 stops
Multiple Airlines Logo
19:25 - 19:30
ORD
-
BFS
18h 05m
2 stops
£692Multiple Airlines
Wed, 19 Aug - Thu, 17 Sep
Multiple Airlines Logo
08:30 - 19:15
BFS
-
ORD
40h 45m
3 stops
Multiple Airlines Logo
19:25 - 17:05
ORD
-
BFS
15h 40m
2 stops
£697Multiple Airlines
Wed, 19 Aug - Wed, 16 Sep
Multiple Airlines Logo
08:30 - 19:15
BFS
-
ORD
40h 45m
3 stops
Multiple Airlines Logo
22:25 - 23:10
ORD
-
BFS
18h 45m
3 stops
£722Multiple Airlines
Wed, 19 Aug - Wed, 16 Sep
Multiple Airlines Logo
06:10 - 09:00
BFS
-
ORD
32h 50m
3 stops
Multiple Airlines Logo
09:55 - 15:55
ORD
-
BFS
24h 00m
2 stops
£731Multiple Airlines
Thu, 11 Jun - Wed, 17 Jun
Multiple Airlines Logo
22:30 - 13:05
BFS
-
ORD
44h 35m
3 stops
Multiple Airlines Logo
14:15 - 15:15
ORD
-
BFS
19h 00m
2 stops
£734Multiple Airlines
Tue, 9 Jun - Tue, 23 Jun
British Airways Logo
09:40 - 17:35
BHD
-
ORD
13h 55m
1 stop
British Airways Logo
21:15 - 17:35
ORD
-
BHD
14h 20m
1 stop
£778British Airways
Tue, 9 Jun - Tue, 23 Jun
Virgin Atlantic Logo
17:30 - 14:15
BHD
-
ORD
26h 45m
1 stop
Virgin Atlantic Logo
16:50 - 09:20
ORD
-
BHD
10h 30m
1 stop
£814Virgin Atlantic
Mon, 22 Jun - Mon, 29 Jun
KLM Logo
09:50 - 21:25
BHD
-
ORD
17h 35m
2 stops
KLM Logo
19:17 - 16:55
ORD
-
BHD
15h 38m
2 stops
£825KLM
Tue, 9 Jun - Tue, 23 Jun
British Airways Logo
06:30 - 13:50
BHD
-
ORD
13h 20m
1 stop
British Airways Logo
19:05 - 13:35
ORD
-
BHD
12h 30m
1 stop
£842British Airways
Wed, 19 Aug - Wed, 16 Sep

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

Our best British Airways deals on Belfast to Chicago O'Hare Intl Airport flight tickets
British Airways
9 Jun
BHD09:40Belfast City
13h 55m
1 stop
ORD17:35Chicago O'Hare Intl
23 Jun
ORD21:15Chicago O'Hare Intl
14h 20m
1 stop
BHD17:35Belfast City
£778
British Airways
19 Aug
BHD06:30Belfast City
13h 20m
1 stop
ORD13:50Chicago O'Hare Intl
16 Sept
ORD19:05Chicago O'Hare Intl
12h 30m
1 stop
BHD13:35Belfast City
£842
British Airways
19 Aug
BHD10:05Belfast City
11h 50m
1 stop
ORD15:55Chicago O'Hare Intl
16 Sept
ORD16:51Chicago O'Hare Intl
14h 44m
2 stops
BHD13:35Belfast City
£851

KLM flights from Belfast to Chicago O'Hare Intl Airport

Our best KLM deals on Belfast to Chicago O'Hare Intl Airport flight tickets
KLM
9 Jun
BHD09:50Belfast City
17h 35m
2 stops
ORD21:25Chicago O'Hare Intl
23 Jun
ORD19:17Chicago O'Hare Intl
15h 38m
2 stops
BHD16:55Belfast City
£825
KLM
22 May
BHD17:30Belfast City
26h 45m
1 stop
ORD14:15Chicago O'Hare Intl
25 May
ORD16:50Chicago O'Hare Intl
10h 30m
1 stop
BHD09:20Belfast City
£1,135
KLM
22 May
BHD09:50Belfast City
16h 24m
2 stops
ORD20:14Chicago O'Hare Intl
25 May
ORD11:09Chicago O'Hare Intl
16h 11m
2 stops
BHD09:20Belfast City
£1,138

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 13 May 2026.
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

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 21/6

18:00-18:15

2 stops30h 15m

Chicago O'Hare Intl

Sun 28/6

22:25-19:55

2 stops15h 30m

£605

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 19/8

08:30-19:15

3 stops40h 45m

Chicago O'Hare Intl

Thu 17/9

19:25-19:30

2 stops18h 05m

£692

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 19/8

08:30-19:15

3 stops40h 45m

Chicago O'Hare Intl

Wed 16/9

19:25-17:05

2 stops15h 40m

£697

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 19/8

08:30-19:15

3 stops40h 45m

Chicago O'Hare Intl

Wed 16/9

22:25-23:10

3 stops18h 45m

£722

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 11/6

06:10-09:00

3 stops32h 50m

Chicago O'Hare Intl

Wed 17/6

09:55-15:55

2 stops24h 00m

£731

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 9/6

22:30-13:05

3 stops44h 35m

Chicago O'Hare Intl

Tue 23/6

14:15-15:15

2 stops19h 00m

£734

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 9/6

09:40-17:35

1 stop13h 55m

Chicago O'Hare Intl

Tue 23/6

21:15-17:35

1 stop14h 20m

£778

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 22/6

17:30-14:15

1 stop26h 45m

Chicago O'Hare Intl

Mon 29/6

16:50-09:20

1 stop10h 30m

£814

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 9/6

09:50-21:25

2 stops17h 35m

Chicago O'Hare Intl

Tue 23/6

19:17-16:55

2 stops15h 38m

£825
Fastest return journey

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 19/8

06:30-13:50

1 stop13h 20m

Chicago O'Hare Intl

Wed 16/9

19:05-13:35

1 stop12h 30m

£842

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

Fastest flight time

18h 40m

Direct flights

None
The fastest flight from Belfast to Chicago O'Hare Intl Airport takes 18h 40m
There are no direct flights from Belfast to Chicago O'Hare Intl Airport. There are no popular flight routes from Belfast to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from Belfast to Chicago O'Hare Intl Airport

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

    A flight from Belfast to Chicago O'Hare Intl will travel around 3642.0 mi. Typically, this will take 18h 40m by plane in normal conditions.

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

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

    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 O'Hare Intl Airport.

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

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from Belfast to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £495Free CancellationRating
6.7
7,975 reviews
Search British Airways flights

Frequently asked questions about flying from Belfast to Chicago O'Hare Intl Airport

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

    Confirm your travel details to search for the latest offers for flights from Belfast to Chicago O'Hare Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

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

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Gurnee
Lincolnshire
Racine
Schaumburg
Willowbrook
Evanston
Lake Geneva
Joliet
Oak Park
Northbrook
Rosemont

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?

Yes. momondo allows you to filter the results for Belfast to Chicago flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to Chicago.

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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