$308+ Cheap flights from Chicago (CHI) to Belfast Intl (BFS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BFS
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Belfast Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Chicago to Belfast Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Chicago to Belfast IntlExplore the most affordable flight options available from Chicago to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Chicago to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:45 am -
3 stops25h 45m
Fri 10/306:30 am -
2 stops18h 28m
Deal found 9/8![Multiple Airlines logo]()
$883
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:25 pm -
2 stops20h 05m
Mon 10/58:40 am -
2 stops17h 08m
Deal found 9/9![Multiple Airlines logo]()
$1,163
This Trip.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:45 pm -
2 stops14h 05m
Sat 9/127:20 am -
2 stops17h 55m
Deal found 9/6![Multiple Airlines logo]()
$1,956
Best flights from Chicago to Belfast IntlDiscover carefully curated flight deals from Chicago to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Chicago to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:45 am -
3 stops25h 45m
Fri 10/306:30 am -
2 stops18h 28m
Deal found 9/8![Multiple Airlines logo]()
$883
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:25 pm -
2 stops20h 05m
Mon 10/58:40 am -
2 stops17h 08m
Deal found 9/9![Multiple Airlines logo]()
$1,163
Last-minute flights from Chicago to Belfast IntlDiscover last-minute flight deals from Chicago to Belfast Intl. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Belfast Intl. Data last updated September 9, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:45 pm -
2 stops14h 05m
Sat 9/127:20 am -
2 stops17h 55m
Deal found 9/6![Multiple Airlines logo]()
$1,956
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:25 pm -
2 stops20h 05m
Mon 10/58:40 am -
2 stops17h 08m
Deal found 9/9![Multiple Airlines logo]()
$1,163
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:45 am -
3 stops25h 45m
Fri 10/306:30 am -
2 stops18h 28m
Deal found 9/8![Multiple Airlines logo]()
$883
One-way flights from Chicago to Belfast IntlSearch for one-way flight options from Chicago to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Chicago to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Mytrip deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:25 pm -
2 stops20h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:25 pm -
2 stops50h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:25 am -
3 stops33h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:30 pm -
3 stops20h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$371
Find flight deals from Chicago to Belfast Intl
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Belfast Intl (BFS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 9, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $883 (Booking.com) |
One-way from | $308 (Mytrip) |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Belfast Intl 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, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Chicago to Belfast Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoBelfast
ORD Chicago O'Hare Intl - BFS Belfast Intl
ORDBFS
Chicago O'Hare Intl
Sun 10/11
7:25 pm-9:30 pm
2 stops20h 05m
Belfast Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$308
ChicagoBelfast
ORD Chicago O'Hare Intl - BFS Belfast Intl
ORDBFS
Chicago O'Hare Intl
Sun 9/27
10:25 pm-7:05 am
2 stops50h 40m
Belfast Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$319
ChicagoBelfast
MDW Chicago Midway - BFS Belfast Intl
MDWBFS
Chicago Midway
Sun 9/27
6:25 am-9:55 pm
3 stops33h 30m
Belfast Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$354
ChicagoBelfast
ORD Chicago O'Hare Intl - BFS Belfast Intl
ORDBFS
Chicago O'Hare Intl
Wed 10/28
7:30 pm-8:45 pm
3 stops20h 15m
Belfast Intl
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$371
ChicagoBelfast
ORD Chicago O'Hare Intl - BFS Belfast Intl
ORDBFS
Chicago O'Hare Intl
Fri 10/23
8:45 am-4:30 pm
3 stops25h 45m
Belfast Intl
Fri 10/30
6:30 am-7:58 pm
2 stops18h 28m
$883
ChicagoBelfast
ORD Chicago O'Hare Intl - BFS Belfast Intl
ORDBFS
Chicago O'Hare Intl
Sun 9/20
7:25 pm-9:30 pm
2 stops20h 05m
Belfast Intl
Mon 10/5
8:40 am-7:48 pm
2 stops17h 08m
$1,163
Sorted by cheapest first
Compare providers for flights from Chicago to Belfast Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Belfast Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-Belfast Intl Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Chicago-Belfast Intl Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Chicago-Belfast Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Belfast Intl Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to Belfast Intl
Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Chicago with our price prediction graph.
CHI-BFS
ORD-BFS
MDW-BFS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago to Belfast Intl Airport
CHI-BFS
ORD-BFS
MDW-BFS
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Chicago to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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