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Cheap flights from Belfast to Chicago from £515

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 21/12. 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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Find the cheapest flights from Belfast to Chicago

Cheap return flights

Logo
07:00 - 21:15BFS-ORD
44h 15m2 stops
Logo
19:25 - 21:30ORD-BFS
20h 05m2 stops
£523
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Logo
09:55 - 21:15BFS-ORD
17h 20m2 stops
Logo
19:25 - 20:20ORD-BFS
18h 55m2 stops
£529
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Logo
07:15 - 19:00BFS-ORD
17h 45m2 stops
Logo
21:15 - 22:20ORD-BFS
19h 05m2 stops
£588
Find Deal
Sun, 7 Sep - Sun, 7 Sep
Logo
19:55 - 12:35BFS-ORD
46h 40m3 stops
Logo
15:50 - 22:30ORD-BFS
24h 40m2 stops
£614
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Logo
19:55 - 12:35BFS-ORD
46h 40m3 stops
Logo
10:40 - 22:30ORD-BFS
29h 50m3 stops
£629
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Virgin Atlantic Logo
06:30 - 18:10BHD-ORD
17h 40m2 stops
Virgin Atlantic Logo
18:21 - 16:55ORD-BHD
40h 34m2 stops
£634Virgin Atlantic
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Logo
06:10 - 09:18BFS-ORD
33h 08m3 stops
Logo
18:00 - 20:20ORD-BFS
20h 20m2 stops
£715
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Logo
07:05 - 19:29BHD-ORD
18h 24m3 stops
Logo
15:50 - 21:10ORD-BHD
23h 20m2 stops
£716
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Logo
17:25 - 21:15BHD-ORD
33h 50m3 stops
Logo
19:25 - 21:15ORD-BHD
19h 50m3 stops
£725
Find Deal
Tue, 7 Oct - Sat, 11 Oct
Finnair Logo
20:20 - 14:40BHD-ORD
24h 20m1 stop
Finnair Logo
16:50 - 11:30ORD-BHD
36h 40m2 stops
£735Finnair
Find Deal
Tue, 7 Oct - Sat, 11 Oct

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 1 August 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 7/10

07:00-21:15

2 stops44h 15m

Chicago O'Hare Intl

Sat 11/10

19:25-21:30

2 stops20h 05m

£523

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 14/9

09:55-21:15

2 stops17h 20m

Chicago O'Hare Intl

Sun 21/9

19:25-20:20

2 stops18h 55m

£529

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 7/9

07:15-19:00

2 stops17h 45m

Chicago O'Hare Intl

Sun 7/9

21:15-22:20

2 stops19h 05m

£588

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 7/10

19:55-12:35

3 stops46h 40m

Chicago O'Hare Intl

Sat 11/10

15:50-22:30

2 stops24h 40m

£614

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 7/10

19:55-12:35

3 stops46h 40m

Chicago O'Hare Intl

Sat 11/10

10:40-22:30

3 stops29h 50m

£629

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 7/10

06:30-18:10

2 stops17h 40m

Chicago O'Hare Intl

Sat 11/10

18:21-16:55

2 stops40h 34m

£634

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sun 14/9

06:10-09:18

3 stops33h 08m

Chicago O'Hare Intl

Sun 21/9

18:00-20:20

2 stops20h 20m

£715

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 7/10

07:05-19:29

3 stops18h 24m

Chicago O'Hare Intl

Sat 11/10

15:50-21:10

2 stops23h 20m

£716

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 7/10

17:25-21:15

3 stops33h 50m

Chicago O'Hare Intl

Sat 11/10

19:25-21:15

3 stops19h 50m

£725

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 7/10

20:20-14:40

1 stop24h 20m

Chicago O'Hare Intl

Sat 11/10

16:50-11:30

2 stops36h 40m

£735

Flights are sorted by cheapest return flights first.

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

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 time of day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest time of day to fly to Chicago O'Hare Intl Airport is in the morning when flights can be purchased for as low as £626. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £636.

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

£515

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 £515. The best return flight deal from Belfast to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is £523.
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?

    A flight from Belfast to Chicago O'Hare Intl will travel around 3642.0 mi. Typically, this will take 13h 35m 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 £491Free CancellationRating
6.6
7,222 reviews
Search British Airways flights

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Evanston
Northbrook
Schaumburg
Lake Geneva
Lincolnshire
Glenview
Joliet
Oak Brook
Oak Park
Elgin
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.

An easier way to manage your Chicago O'Hare Intl Airport trip

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