Cheap flights from Belfast Intl Airport to Chicago from $786

This is the cheapest round-trip 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 10/29. 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 Intl Airport to Chicago

Cheap round-trip flights

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6:30 am - 6:20 pmBFS-ORD
16h 50m2 stops
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6:30 pm - 10:20 pmORD-BFS
21h 50m2 stops
Wed, Oct 29 - Wed, Nov 5
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2:35 pm - 6:45 pmBFS-ORD
33h 10m3 stops
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7:20 pm - 9:40 pmORD-BFS
20h 20m2 stops
Wed, Oct 29 - Wed, Nov 5
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6:30 am - 12:45 pmBFS-ORD
35h 15m2 stops
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5:20 pm - 2:15 pmORD-BFS
14h 55m1 stop
$1,033
Find Deal
Wed, Oct 29 - Wed, Nov 5

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated September 15, 2025.
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

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/29

6:30 am-6:20 pm

2 stops16h 50m

Chicago O'Hare Intl

Wed 11/5

6:30 pm-10:20 pm

2 stops21h 50m

$786

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/29

2:35 pm-6:45 pm

3 stops33h 10m

Chicago O'Hare Intl

Wed 11/5

7:20 pm-9:40 pm

2 stops20h 20m

$885

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 10/29

6:30 am-12:45 pm

2 stops35h 15m

Chicago O'Hare Intl

Wed 11/5

5:20 pm-2:15 pm

1 stop14h 55m

$1,033

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 round-trip 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

Direct flights

None
There are no direct flights from Belfast Intl Airport to Chicago. There are no popular flight routes from Belfast Intl Airport to Chicago.
  • How far is Belfast Intl to Chicago by plane?

    Chicago is 3624.6 mi away from Belfast Intl. Flights usually cover this in 16h 50m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Belfast Intl Airport to Chicago are refreshed on a daily basis.

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

    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 Belfast Intl Airport to Chicago.

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

    The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

    Search flight deals from Belfast Intl Airport to Chicago. While viewing offers you’ll have the option to create a Price Alert.

  • 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 aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Chicago?

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to Chicago for you.

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

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

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

Once you have performed a search for Belfast to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Chicago from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Wed 10/15
Wed 10/22

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