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$106+ Cheap flights from Chicago O'Hare Intl Airport

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/12. 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.
ORD — SYD
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

What to know about flights from O'Hare Intl

Discover essential information about flights departing from O'Hare Intl, including flight schedules, destinations, airlines operating at the O'Hare Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 5 November 2025.

Cheapest airline

Qantas Airways

Good round-trip deal

$544 or less

Good one-way deal

$145 or less
On average, Qantas Airways currently has the cheapest one-way flight from Chicago O'Hare Intl (avg. price of $1,336).
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Price to beat on a round-trip flight from Chicago O'Hare Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl.
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Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl
Explore the most affordable flight options available from O'Hare Intl. Find the lowest fares based on data from user searches, with prices last updated on 5 November 2025.

Mon 24/1110:59ORD - LGA
Nonstop2h 05mSpirit Airlines
Tue 25/1107:30LGA - ORD
Nonstop2h 31mSpirit Airlines
Deal found 4/11$154
Sat 17/113:00ORD - LGA
Nonstop2h 14mUnited Airlines
Sat 17/118:15LGA - ORD
Nonstop2h 48mUnited Airlines
Deal found 2/11$206
Sat 6/1210:30ORD - LGA
Nonstop2h 15mDelta
Mon 8/1220:50LGA - ORD
Nonstop2h 40mDelta
Deal found 3/11$209
Tue 18/1112:29ORD - LGA
Nonstop2h 05mDelta
Tue 18/1120:50LGA - ORD
Nonstop2h 45mDelta
Deal found 4/11$211
Tue 6/106:00ORD - LGA
Nonstop2h 26mDelta
Thu 8/120:40LGA - ORD
Nonstop2h 54mDelta
Deal found 3/11$214
Tue 25/1115:53ORD - LGA
Nonstop2h 07mSpirit Airlines
Fri 28/1112:59LGA - ORD
Nonstop2h 32mSpirit Airlines
Deal found 4/11$215
Thu 20/1107:00ORD - LGA
Nonstop2h 15mDelta
Mon 24/1106:15LGA - ORD
Nonstop2h 40mDelta
Deal found 4/11$220
Tue 2/1213:00ORD - LGA
Nonstop2h 11mUnited Airlines
Tue 9/1217:13LGA - ORD
Nonstop2h 42mUnited Airlines
Deal found 2/11$224
Fri 16/108:00ORD - LGA
Nonstop2h 13mUnited Airlines
Sun 18/110:15LGA - ORD
Nonstop2h 48mUnited Airlines
Deal found 3/11$226
Thu 4/1206:00ORD - LGA
Nonstop2h 07mUnited Airlines
Thu 4/1221:15LGA - ORD
Nonstop2h 42mUnited Airlines
Deal found 4/11$228
Tue 24/209:28ORD - MEL
1 stop31h 02mQantas Airways
Sun 1/318:30MEL - ORD
2 stops39h 09mQantas Airways
Deal found 3/11$1,539
Tue 2/1208:20ORD - SYD
2 stops31h 40mMultiple Airlines
Tue 9/1211:20SYD - ORD
1 stop35h 45mMultiple Airlines
Deal found 3/11$1,579

Find flights from O'Hare Intl within your budget

 
Find flights departing from O'Hare Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 5 November 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Sat 6/12

10:30-13:45

Nonstop2h 15m

New York LaGuardia

Mon 8/12

20:50-22:30

Nonstop2h 40m

$211

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Wed 19/11

07:00-10:07

Nonstop2h 07m

New York LaGuardia

Wed 19/11

20:15-21:57

Nonstop2h 42m

$211

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Sat 31/1

17:20-20:30

Nonstop2h 10m

New York LaGuardia

Mon 2/2

20:40-22:34

Nonstop2h 54m

$214

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Tue 13/1

19:30-22:55

Nonstop2h 25m

New York LaGuardia

Wed 21/1

06:05-07:58

Nonstop2h 53m

$214

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Thu 15/1

10:45-13:58

Nonstop2h 13m

New York LaGuardia

Wed 21/1

08:35-10:33

Nonstop2h 58m

$214

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Thu 4/12

16:00-19:07

Nonstop2h 07m

New York LaGuardia

Sun 7/12

06:15-07:57

Nonstop2h 42m

$220

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Sat 13/12

11:00-14:11

Nonstop2h 11m

New York LaGuardia

Sat 13/12

18:15-19:57

Nonstop2h 42m

$220

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Sat 15/11

10:00-13:11

Nonstop2h 11m

New York LaGuardia

Sat 15/11

18:15-19:57

Nonstop2h 42m

$229

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Fri 14/11

14:00-17:07

Nonstop2h 07m

New York LaGuardia

Fri 14/11

21:15-22:57

Nonstop2h 42m

$229

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Wed 3/12

16:00-19:07

Nonstop2h 07m

New York LaGuardia

Sun 7/12

06:15-07:57

Nonstop2h 42m

$234

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 60 results
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Best time to book a flight from O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly from O'Hare Intl with our price prediction graph.
Estimated return 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.

Travel insights for flights from O'Hare Intl

Get recent, data-driven insights about flights from O'Hare Intl including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Sydney. Price data was last updated on 31 October 2025.

The best time to book flights from Chicago O'Hare Intl Airport is 48 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?

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport (average of $304). Flying from Chicago O'Hare Intl Airport in January will prove the most costly (average of $1,311). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Chicago O'Hare Intl Airport?

When flying from Chicago O'Hare Intl Airport check dates and pricing for the following: Qantas Airways, American Airlines. As they depart for the following popular destinations: Sydney.

Qantas Airways
Qantas Airways
From $1,334
American Airlines
American Airlines
From $1,317

What are popular destinations to fly to from Chicago O'Hare Intl Airport?

Chicago O'Hare Intl Airport offers frequent flights to New York (1,330 flights per day), Detroit (836 flights per day) and Toronto (784 flights per day).

Los Angeles
Los Angeles
From $120
Vancouver Intl
Vancouver Intl
From $299
Memphis
Memphis
From $179

What is the cheapest place to fly to from Chicago O'Hare Intl Airport?

The cheapest city to fly to from Chicago O'Hare Intl Airport is Raleigh-Durham, with prices starting at $100. Explore other affordable destinations below.

Raleigh-Durham
Raleigh-Durham
From $100
Los Angeles
Los Angeles
From $120
Memphis
Memphis
From $179
San Diego
San Diego
From $201

Airline reviews for flights from O'Hare Intl

Get insights into the airlines that provide service from O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from O'Hare Intl. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Check out reviews from past customers who have flown Qantas Airways and American Airlines from Chicago O'Hare Intl Airport to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
927 reviews
Check prices

Entertainment

7.2

Overall

7.5

Comfort

7.5

Food

7.0

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
927 reviews
Qantas Airways
7.5
Good
927 reviews
Check prices

Entertainment

7.2

Overall

7.5

Comfort

7.5

Food

7.0

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
American Airlines
7.2
Good
11,040 reviews
Qantas Airways
7.5
Good
927 reviews
Check prices

Entertainment

7.2

Overall

7.5

Comfort

7.5

Food

7.0

Boarding

7.7

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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Alternate flight departure points to O'Hare Intl

Consider leaving from one of these other departure points that are located a short distance from O'Hare Intl. Flight origins were last updated on 5 November 2025.
Flights from St. Louis
Flights from Evansville
Flights from Belleville
Flights from Bloomington
Flights from Peoria
Flights from Midway
Flights from Moline
Flights from Springfield

Related info for your journey

Access useful and relevant information related to your journey from O'Hare Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 5 November 2025.

  • What are the most popular destinations to fly to from Chicago O'Hare Intl Airport?

    For the current month, the most popular flights from Chicago O'Hare Intl Airport are Ahmedabad, Mumbai, Bangkok Suvarnabhumi Airport. Ahmedabad, Mumbai, Athens are the most popular locations from Chicago O'Hare Intl Airport year round.

  • What is the cheapest flight from Chicago O'Hare Intl Airport to anywhere?

    Users have flown out of Chicago O'Hare Intl Airport for as low as $100 to Raleigh (prices may vary depending on the airline and departure time). On average, users have booked flights for $710 to fly from Chicago O'Hare Intl Airport.

  • What is the cheapest premium economy flight from Chicago O'Hare Intl Airport?

    Options for some of the cheapest premium economy flights from Chicago O'Hare Intl Airport we have found on Cheapflights are as follows:
    Fly from Chicago O'Hare Intl to New York LaGuardia Airport starting at $647
    Fly from Chicago O'Hare Intl to Harrisburg starting at $785
    Fly from Chicago O'Hare Intl to Toronto Pearson Intl Airport starting at $1,851
    Fly from Chicago O'Hare Intl to Tokyo Haneda Airport starting at $3,208

  • What is the cheapest first class flight from Chicago O'Hare Intl Airport?

    If you’re looking to fly first-class from Chicago O'Hare Intl Airport to anywhere, put New York on your list as prices start at $844 for this destination.

  • What is the cheapest month to fly from Chicago O'Hare Intl Airport?

    Currently, the cheapest month for flights from Chicago O'Hare Intl Airport is August. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Chicago O'Hare Intl Airport?

    View the cheapest flight destinations from Chicago O'Hare Intl Airport:
    Fly from Chicago to Sydney from $1,400 round trip
    Fly from Chicago to Melbourne from $1,603 round trip

  • How does Cheapflights help users find flights from O'Hare Intl?

    Cheapflights helps you search for flights from O'Hare Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl?

    Cheapflights helps you find that perfect flight from O'Hare Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from O'Hare Intl with no change fees?

    Users can book flights with no change fees policies with our dedicated filters. Book flights from O'Hare Intl flexibly with Cheapflights today.

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    Of course! You can now track prices for flights from O'Hare Intl and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl?

Cheapflights helps you find that perfect flight from O'Hare Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from O'Hare Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from O'Hare Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from O'Hare Intl become cheaper?

Of course! You can now track prices for flights from O'Hare Intl and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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