$400 Find Cheap Flights from Belfast to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Illinois departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Belfast to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Belfast to Illinois

Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
10:20 pm - 4:00 pm
BFS
-
ORD
46h 40m
3 stops
Multiple Airlines Logo
6:01 pm - 8:10 pm
ORD
-
BFS
21h 09m
3 stops
$747Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
6:30 am - 6:20 pm
BFS
-
ORD
16h 50m
2 stops
Multiple Airlines Logo
7:30 pm - 8:10 pm
ORD
-
BFS
19h 40m
2 stops
$772Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
7:20 am - 6:20 pm
BHD
-
ORD
16h 00m
2 stops
Multiple Airlines Logo
7:30 pm - 8:30 pm
ORD
-
BHD
20h 00m
2 stops
$787Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
American Airlines Logo
6:35 am - 6:00 pm
BHD
-
ORD
16h 25m
1 stop
American Airlines Logo
9:35 pm - 4:05 pm
ORD
-
BHD
13h 30m
1 stop
$816American Airlines
Mon, Mar 16 - Mon, Mar 23
Virgin Atlantic Logo
6:30 am - 3:20 pm
BHD
-
ORD
13h 50m
1 stop
Virgin Atlantic Logo
1:37 pm - 4:45 pm
ORD
-
BHD
22h 08m
2 stops
$825Virgin Atlantic
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
5:45 am - 6:31 pm
BFS
-
ORD
42h 46m
3 stops
Multiple Airlines Logo
7:25 pm - 11:00 pm
ORD
-
BFS
21h 35m
3 stops
$875Multiple Airlines
Thu, Apr 9 - Thu, Apr 16
KLM Logo
5:30 pm - 2:15 pm
BHD
-
ORD
26h 45m
1 stop
KLM Logo
4:20 pm - 9:20 am
ORD
-
BHD
11h 00m
1 stop
$956KLM
Thu, Apr 9 - Thu, Apr 16
KLM Logo
9:50 am - 8:17 pm
BHD
-
ORD
16h 27m
2 stops
KLM Logo
4:20 pm - 9:20 am
ORD
-
BHD
11h 00m
1 stop
$961KLM
Mon, Feb 23 - Wed, Feb 25
British Airways Logo
9:15 am - 3:25 pm
BHD
-
ORD
12h 10m
1 stop
British Airways Logo
1:39 pm - 10:15 am
ORD
-
BHD
14h 36m
2 stops
$3,684British Airways
Mon, Feb 23 - Wed, Feb 25
British Airways Logo
6:35 am - 5:58 pm
BHD
-
ORD
17h 23m
2 stops
British Airways Logo
11:38 am - 9:10 am
ORD
-
BHD
15h 32m
2 stops
$3,690British Airways
Booking Insights

KAYAK's insights & trends for Belfast to Illinois flights

Get data-powered insights and trends into flights from Belfast to Illinois to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Belfast to Illinois?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Belfast to Illinois were found on American Airlines ($816) and Virgin Atlantic ($825).

Find deals

Good to know

Cheapest flight$400
Flight from Belfast City Airport to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Belfast to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Belfast to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Belfast to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Belfast to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights from Belfast to Illinois
Business Class flights from Belfast to Illinois
Premium Economy Class flights from Belfast to Illinois
Economy Class flights from Belfast to Illinois