Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Belfast Intl Airport to Chicago from £341

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 Intl Airport to Chicago departing on 23/6. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Belfast Intl Airport to Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:15 - 09:36
BFS
-
ORD
31h 21m
3 stops
Multiple Airlines Logo
19:25 - 16:15
ORD
-
BFS
14h 50m
2 stops
£577Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
08:15 - 23:07
BFS
-
ORD
20h 52m
2 stops
Multiple Airlines Logo
19:25 - 16:15
ORD
-
BFS
14h 50m
2 stops
£595Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
08:50 - 21:25
BFS
-
ORD
42h 35m
3 stops
Multiple Airlines Logo
19:25 - 16:20
ORD
-
BFS
14h 55m
2 stops
£645Multiple Airlines
Tue, 1 Sep - Tue, 29 Sep
Multiple Airlines Logo
08:50 - 21:25
BFS
-
ORD
42h 35m
3 stops
Multiple Airlines Logo
19:25 - 23:20
ORD
-
BFS
21h 55m
3 stops
£678Multiple Airlines
Tue, 1 Sep - Tue, 29 Sep
Multiple Airlines Logo
06:40 - 18:15
BFS
-
ORD
17h 35m
2 stops
Multiple Airlines Logo
19:25 - 16:15
ORD
-
BFS
14h 50m
2 stops
£694Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
07:15 - 18:15
BFS
-
ORD
17h 00m
2 stops
Multiple Airlines Logo
19:25 - 16:20
ORD
-
BFS
14h 55m
2 stops
£748Multiple Airlines
Tue, 1 Sep - Tue, 29 Sep
Multiple Airlines Logo
17:35 - 19:25
BFS
-
ORD
31h 50m
3 stops
Multiple Airlines Logo
15:45 - 23:20
ORD
-
BFS
25h 35m
3 stops
£772Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
17:35 - 19:25
BFS
-
ORD
31h 50m
3 stops
Multiple Airlines Logo
15:45 - 20:50
ORD
-
BFS
23h 05m
2 stops
£783Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
11:10 - 11:50
BFS
-
ORD
30h 40m
2 stops
Multiple Airlines Logo
22:25 - 22:15
ORD
-
BFS
17h 50m
2 stops
£870Multiple Airlines
Sat, 1 Aug - Tue, 4 Aug
Multiple Airlines Logo
11:10 - 11:50
BFS
-
ORD
30h 40m
2 stops
Multiple Airlines Logo
08:45 - 15:15
ORD
-
BFS
24h 30m
3 stops
£887Multiple Airlines
Sat, 1 Aug - Tue, 4 Aug

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport to Chicago 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 29 March 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 27/4

08:15-09:36

3 stops31h 21m

Chicago O'Hare Intl

Mon 4/5

19:25-16:15

2 stops14h 50m

£577

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 27/4

08:15-23:07

2 stops20h 52m

Chicago O'Hare Intl

Mon 4/5

19:25-16:15

2 stops14h 50m

£595

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/9

08:50-21:25

3 stops42h 35m

Chicago O'Hare Intl

Tue 29/9

19:25-16:20

2 stops14h 55m

£645

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/9

08:50-21:25

3 stops42h 35m

Chicago O'Hare Intl

Tue 29/9

19:25-23:20

3 stops21h 55m

£678

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/5

06:40-18:15

2 stops17h 35m

Chicago O'Hare Intl

Mon 18/5

19:25-16:15

2 stops14h 50m

£694
Fastest return journey

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 1/9

07:15-18:15

2 stops17h 00m

Chicago O'Hare Intl

Tue 29/9

19:25-16:20

2 stops14h 55m

£748

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/5

17:35-19:25

3 stops31h 50m

Chicago O'Hare Intl

Mon 18/5

15:45-23:20

3 stops25h 35m

£772

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 11/5

17:35-19:25

3 stops31h 50m

Chicago O'Hare Intl

Mon 18/5

15:45-20:50

2 stops23h 05m

£783

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/8

11:10-11:50

2 stops30h 40m

Chicago O'Hare Intl

Tue 4/8

22:25-22:15

2 stops17h 50m

£870

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/8

11:10-11:50

2 stops30h 40m

Chicago O'Hare Intl

Tue 4/8

08:45-15:15

3 stops24h 30m

£887

Flights are sorted by cheapest return flights first.

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

When to book flights from Belfast Intl Airport to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Belfast Intl Airport to Chicago (BFS to CHI) flight deals and tips

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

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Belfast Intl Airport to Chicago takes 13h 15m
There are no direct flights from Belfast Intl Airport to Chicago. There are no popular flight routes from Belfast Intl Airport to Chicago.
Search flight deals

  • How far is Belfast Intl to Chicago by plane?

    The straight-line distance from Belfast Intl to Chicago is 3624.6 mi. 13h 15m is a normal flight duration for this route.

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast Intl Airport to Chicago.

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

    The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Belfast Intl Airport to Chicago?

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Belfast Intl Airport from Chicago. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

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

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Belfast.

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

Yes momondo offers price alerts on flights to Chicago from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chicago trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 28/4
Tue 5/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport