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Cheap flights from Belfast Intl Airport to Chicago from £681

This is the cheapest return 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 20/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Belfast Intl Airport to Chicago (BFS-ORD)

Cheap return flights

Logo
16:50 - 16:25BFS-ORD
29h 35m2 stops
Logo
18:15 - 23:05ORD-BFS
22h 50m3 stops
£681
Find Deal
Sat, 20 Sep - Sat, 27 Sep
Logo
15:25 - 16:25BFS-ORD
31h 00m3 stops
Logo
18:15 - 23:05ORD-BFS
22h 50m3 stops
£717
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Sat, 20 Sep - Sat, 27 Sep
Logo
08:35 - 19:00BFS-ORD
16h 25m2 stops
Logo
15:45 - 15:30ORD-BFS
17h 45m2 stops
£720
Find Deal
Sat, 20 Sep - Sat, 27 Sep

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport 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 7 August 2025.
Use the filters below to find and compare flights from Belfast Intl Airport 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

Sat 20/9

16:50-16:25

2 stops29h 35m

Chicago O'Hare Intl

Sat 27/9

18:15-23:05

3 stops22h 50m

£681

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 20/9

15:25-16:25

3 stops31h 00m

Chicago O'Hare Intl

Sat 27/9

18:15-23:05

3 stops22h 50m

£717

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 20/9

08:35-19:00

2 stops16h 25m

Chicago O'Hare Intl

Sat 27/9

15:45-15:30

2 stops17h 45m

£720

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Chicago from

How to get the cheapest flight ticket from Belfast Intl Airport 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 £622. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £631.

When to book flights from Belfast Intl Airport to Chicago O'Hare Intl Airport

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

Cheap Belfast Intl Airport to Chicago O'Hare Intl Airport (BFS to ORD) flight deals and tips

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

Best price found

£681

Fastest flight time

16h 25m

Direct flights

None
The best flight deal from Belfast Intl Airport to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is £681
The fastest flight from Belfast Intl Airport to Chicago O'Hare Intl Airport takes 16h 25m
There are no direct flights from Belfast Intl Airport to Chicago O'Hare Intl Airport. Popular non-direct route for this connection is Belfast Intl Airport - Chicago O'Hare Intl Airport.
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  • How far is Belfast Intl to Chicago O'Hare Intl by plane?

    Chicago O'Hare Intl is 3629.9 mi away from Belfast Intl. Typically, this will take 16h 25m by plane in normal conditions.

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

    Prices for flights from Belfast Intl Airport to Chicago O'Hare Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport 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 required for your trip to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Compare and see reviews for airlines that fly from Belfast Intl Airport to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £487Free CancellationRating
6.6
7,245 reviews
Search British Airways flights

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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?

Flights from Belfast to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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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