Cheap flights from O'Hare Intl (ORD) to Brussels
ORD — BRU
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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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.Cheapflights Tip: The best prices from Chicago O'Hare Intl to Brussels are usually found in April or October, booked 36 days in advance, depart on a Tuesday or Thursday and return on a Tuesday
Find flight deals from O'Hare Intl to Brussels
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Brussels (BR1). 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 October 24, 2026.
Popular in | July |
|---|---|
Cheapest in | April |
Average price | $673 |
Best time to book a flight from O'Hare Intl to Brussels
Have a flexible travel schedule? Discover the best time to fly to Brussels from O'Hare Intl with our price prediction graph.
ORD-BR1
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 O'Hare Intl Airport to Brussels
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Brussels?
The best time to book flights from Chicago O'Hare Intl Airport to Brussels is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Brussels?
Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Brussels (average of $646). Flying from Chicago O'Hare Intl Airport to Brussels in July is currently the most expensive (average of $1,398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ORD to BRU?
Find hourly flight availability from O'Hare Intl to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 24, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Brussels as you normally would.
Reviews of airlines servicing Brussels
Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated October 24, 2026.
Get a feel of what it's like to fly with Scandinavian Airlines,Aer Lingus, andUnited Airlines from Chicago O'Hare Intl Airport to Brussels by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Boarding
7.7
Entertainment
6.8
Food
6.8
Comfort
7.4
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Crew
8.1
Boarding
7.7
Entertainment
6.8
Food
6.8
Comfort
7.4
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Crew
8.1
Boarding
7.7
Entertainment
6.8
Food
6.8
Comfort
7.4
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Crew
8.1
Boarding
7.7
Entertainment
6.8
Food
6.8
Comfort
7.4
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Crew
8.1
Boarding
7.7
Entertainment
6.8
Food
6.8
Comfort
7.4
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Crew
8.1
Boarding
7.7
Entertainment
6.8
Food
6.8
Comfort
7.4
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
BOS - CPH
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Brussels. 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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O'Hare Intl and Brussels flights
Browse other O'Hare Intl and Brussels flight options. Last updated on October 24, 2026.
Other flights from O'Hare Intl
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on October 24, 2026.
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Top 7 airlines flying from O'Hare Intl to Brussels
Discover the top 7 airlines that operate flights from O'Hare Intl to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$433 | Average$665 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$444 | Average$463 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$477 | Average$713 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$534 | Average$751 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$752 | Average$1,656 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$871 | Average$1,376 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$969 | Average$1,369 | FlexibilityNo cancel fee | On-time76% |