How many flights depart from United States to Chicago O'Hare Intl Airport on average per week?

3,444 flights are operational weekly from United States to Chicago O'Hare Intl Airport as of July 2025. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.

What is the cheapest airline that flies from United States to Chicago O'Hare Intl?

Frontier and Spirit Airlines are the most popular carriers operating from United States to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from United States according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 11 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago O'Hare Intl Airport?

On average, it takes 2h 39m to fly from United States to Chicago O'Hare Intl Airport if you fly out of New York (the most popular airport in United States) and into Chicago O'Hare Intl Airport (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Boston and into Chicago O'Hare Intl Airport, then the flight time is around 2h 45m.

How many flights depart from United States to Chicago O'Hare Intl Airport on average per day?

The number of flights available between United States and Chicago O'Hare Intl Airport is 492 per day as of July 2025. The most frequent departure time is 2:00PM, with 42% of daily flights leaving at noon.

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

There are 12 operators available for flights from United States to Chicago O'Hare Intl Airport as of July 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$28 Cheap Flights from United States to Chicago O'Hare Intl Airport in 2025

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Find the cheapest flights from the United States to Chicago

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from the United States to Chicago

10:21 am - 11:58 amPHL-ORD

2h 37mnonstop

6:10 am - 9:25 amORD-PHL

2h 15mnonstop

$54Frontier

Find Deal

Fri, Oct 3 - Mon, Oct 6

9:27 pm - 11:58 pmDFW-ORD

2h 31mnonstop

6:44 pm - 9:39 pmORD-DFW

2h 55mnonstop

$54Frontier

Find Deal

Sun, Sep 28 - Wed, Oct 1

10:59 am - 11:59 pmLGA-ORD

14h 00m1 stop

4:35 pm - 7:41 pmORD-LGA

2h 06mnonstop

$67Spirit Airlines

Find Deal

Sat, Aug 30 - Sat, Sep 6

3:12 pm - 4:50 pmLGA-ORD

2h 38mnonstop

11:13 am - 2:18 pmORD-LGA

2h 05mnonstop

$69Spirit Airlines

Find Deal

Sat, Sep 6 - Mon, Sep 8

7:00 am - 8:38 amEWR-ORD

2h 38mnonstop

1:12 pm - 4:30 pmORD-EWR

2h 18mnonstop

$142United Airlines

Find Deal

Wed, Sep 3 - Wed, Sep 3

7:22 pm - 9:01 pmEWR-ORD

2h 39mnonstop

7:42 pm - 10:59 pmORD-EWR

2h 17mnonstop

$146American Airlines

Find Deal

Sat, Sep 13 - Sat, Sep 20

7:22 pm - 9:01 pmEWR-ORD

2h 39mnonstop

3:42 pm - 6:59 pmORD-EWR

2h 17mnonstop

$147American Airlines

Find Deal

Sat, Sep 20 - Wed, Sep 24

10:30 am - 12:16 pmJFK-ORD

2h 46mnonstop

6:28 pm - 10:08 pmORD-JFK

2h 40mnonstop

$147Delta

Find Deal

Sat, Sep 13 - Tue, Sep 16

7:59 am - 9:37 amEWR-ORD

2h 38mnonstop

7:35 pm - 10:59 pmORD-EWR

2h 24mnonstop

$157United Airlines

Find Deal

Sat, Sep 6 - Mon, Sep 8

8:00 am - 9:55 amJFK-ORD

2h 55mnonstop

7:00 am - 10:23 amORD-JFK

2h 23mnonstop

$157Delta

Find Deal

Sat, Sep 6 - Mon, Sep 8

Frontier flights from United States to Chicago O'Hare Intl Airport

Our best Frontier deals on United States to Chicago O'Hare Intl Airport flight tickets

Frontier

Oct 3

PHL10:21 amPhiladelphia

2h 37m

ORD11:58 amChicago O'Hare Intl

Oct 6

ORD6:10 amChicago O'Hare Intl

2h 15m

PHL9:25 amPhiladelphia

$54

Find similar

Frontier

Oct 30

DFW8:55 pmDallas/Fort Worth

2h 31m

ORD11:26 pmChicago O'Hare Intl

Nov 2

ORD5:12 pmChicago O'Hare Intl

2h 48m

DFW8:00 pmDallas/Fort Worth

$57

Find similar

Frontier

Oct 23

PHL10:21 amPhiladelphia

2h 31m

ORD11:52 amChicago O'Hare Intl

Oct 26

ORD6:20 amChicago O'Hare Intl

2h 06m

PHL9:26 amPhiladelphia

$58

Find similar

Spirit Airlines flights from United States to Chicago O'Hare Intl Airport

Our best Spirit Airlines deals on United States to Chicago O'Hare Intl Airport flight tickets

Spirit Airlines

Aug 30

LGA10:59 amNew York LaGuardia

14h 00m

1 stop

ORD11:59 pmChicago O'Hare Intl

Sep 6

ORD4:35 pmChicago O'Hare Intl

2h 06m

LGA7:41 pmNew York LaGuardia

$67

Find similar

Spirit Airlines

Sep 6

LGA3:12 pmNew York LaGuardia

2h 38m

ORD4:50 pmChicago O'Hare Intl

Sep 8

ORD11:13 amChicago O'Hare Intl

2h 05m

LGA2:18 pmNew York LaGuardia

$69

Find similar

Spirit Airlines

Sep 6

LGA8:36 pmNew York LaGuardia

2h 35m

ORD10:11 pmChicago O'Hare Intl

Sep 8

ORD11:13 amChicago O'Hare Intl

2h 05m

LGA2:18 pmNew York LaGuardia

$70

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momondo Fare Finder

Use the filters below to find and compare flights from the United States to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Fri 10/3

10:21 am-11:58 am

Nonstop2h 37m

Chicago O'Hare Intl

Mon 10/6

6:10 am-9:25 am

Nonstop2h 15m

$54

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sun 9/28

9:27 pm-11:58 pm

Nonstop2h 31m

Chicago O'Hare Intl

Wed 10/1

6:44 pm-9:39 pm

Nonstop2h 55m

$54

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Sat 8/30

10:59 am-11:59 pm

1 stop14h 00m

Chicago O'Hare Intl

Sat 9/6

4:35 pm-7:41 pm

Nonstop2h 06m

$67

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Sat 9/6

3:12 pm-4:50 pm

Nonstop2h 38m

Chicago O'Hare Intl

Mon 9/8

11:13 am-2:18 pm

Nonstop2h 05m

$69

NewarkChicago

EWR - ORD

EWRORD

Newark

Wed 9/3

7:00 am-8:38 am

Nonstop2h 38m

Chicago O'Hare Intl

Wed 9/3

1:12 pm-4:30 pm

Nonstop2h 18m

$142

NewarkChicago

EWR - ORD

EWRORD

Newark

Sat 9/13

7:22 pm-9:01 pm

Nonstop2h 39m

Chicago O'Hare Intl

Sat 9/20

7:42 pm-10:59 pm

Nonstop2h 17m

$146

NewarkChicago

EWR - ORD

EWRORD

Newark

Sat 9/20

7:22 pm-9:01 pm

Nonstop2h 39m

Chicago O'Hare Intl

Wed 9/24

3:42 pm-6:59 pm

Nonstop2h 17m

$147

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

Sat 9/13

10:30 am-12:16 pm

Nonstop2h 46m

Chicago O'Hare Intl

Tue 9/16

6:28 pm-10:08 pm

Nonstop2h 40m

$147

NewarkChicago

EWR - ORD

EWRORD

Newark

Sat 9/6

7:59 am-9:37 am

Nonstop2h 38m

Chicago O'Hare Intl

Mon 9/8

7:35 pm-10:59 pm

Nonstop2h 24m

$157

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

Sat 9/6

8:00 am-9:55 am

Nonstop2h 55m

Chicago O'Hare Intl

Mon 9/8

7:00 am-10:23 am

Nonstop2h 23m

$157

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States 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

Prices

Airlines

Other information

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

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from United States averaging around $192.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $294. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $377.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from United States in the evening is the least expensive time of day to depart. momondo users have found prices as low as $247 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $354. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest United States to Chicago O'Hare Intl flight route?

Fly from Atlanta Hartsfield-Jackson to Chicago O'Hare Intl for the best United States - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $245 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from United States for as low as $190 on momondo.

What cabin class options are available on United States to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on United States to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between United States to Chicago O'Hare Intl Airport.

Cheap United States to Chicago O'Hare Intl Airport flight deals and tips

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

Best Price Found	$28
Fastest flight time	2h 05m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from United States in the past 72 hours is $28. The best round-trip flight deal from United States to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $54.

The fastest flight from United States to Chicago O'Hare Intl Airport takes 2h 05m

Direct flights go from United States to Chicago O'Hare Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from United States to Chicago O'Hare Intl Airport?
Prices for flights from United States to Chicago O'Hare Intl Airport refresh daily.
How many operators does momondo search for flights from United States to Chicago O'Hare Intl Airport?
There are 12 operators available for flights from United States to Chicago O'Hare Intl Airport as of July 2025.
How old do you have to be to fly from United States to Chicago O'Hare Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from United States to Chicago O'Hare Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from United States to Chicago O'Hare Intl Airport is Boeing 737-800 (22.25% of total bookings). The next most popular plane models are Airbus A321neo (10.92%), Boeing 737-900 (9.31%), and Boeing 737 MAX 8 (7.54%).

Best airlines flying from United States to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from United States to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $37	Free Cancellation	Rating 6.3 8,049 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $44	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Frontier	PriceFrom $56	Free Cancellation	Rating 5.9 3,239 reviews	Search Frontier flights
JetBlue	PriceFrom $74	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Delta	PriceFrom $94	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,611 reviews	Search Hawaiian Airlines flights
Sun Country Air	PriceFrom $130	Free Cancellation	Rating 6.9 334 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $132	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
American Airlines	PriceFrom $136	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $154	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

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Why use momondo?

Why should I use momondo to find a flight deal from United States to Chicago?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from United States to Chicago for you.

Can I find flights from United States to Chicago with flexible booking policies on momondo?

Flights from United States 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 United States to Chicago?

Once you have performed a search for United States 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 United States to Chicago right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from United States and alert you when they change.

An easier way to manage your Chicago O'Hare Intl Airport trip

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Cheap flights from the United States to Chicago from $28

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Chicago departing on 11/10. 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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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from the United States to Chicago

Recent round-trip flight deals from the United States to Chicago

Recent one-way flight deals from the United States to Chicago

Recent last minute flight deals from the United States to Chicago

Recent direct flight deals from the United States to Chicago

Frontier flights from United States to Chicago O'Hare Intl Airport

Our best Frontier deals on United States to Chicago O'Hare Intl Airport flight tickets

Spirit Airlines flights from United States to Chicago O'Hare Intl Airport

Our best Spirit Airlines deals on United States to Chicago O'Hare Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Chicago O'Hare Intl Airport that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from United States 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 month to fly to Chicago O'Hare Intl Airport?

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from United States averaging around $192.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest United States to Chicago O'Hare Intl flight route?

Fly from Atlanta Hartsfield-Jackson to Chicago O'Hare Intl for the best United States - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

What cabin class options are available on United States to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on United States to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between United States to Chicago O'Hare Intl Airport.

What is the cheapest airline that flies from United States to Chicago O'Hare Intl?

Frontier and Spirit Airlines are the most popular carriers operating from United States to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

How many flights depart from United States to Chicago O'Hare Intl Airport on average per day?

The number of flights available between United States and Chicago O'Hare Intl Airport is 492 per day as of July 2025. The most frequent departure time is 2:00PM, with 42% of daily flights leaving at noon.

How many flights depart from United States to Chicago O'Hare Intl Airport on average per week?

3,444 flights are operational weekly from United States to Chicago O'Hare Intl Airport as of July 2025. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap United States to Chicago O'Hare Intl Airport flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

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

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

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

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

What is the most popular plane model from United States to Chicago O'Hare Intl Airport?

Best airlines flying from United States to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from United States to Chicago O'Hare Intl Airport with momondo

Traveling to a place near Chicago?

Why use momondo?

Why should I use momondo to find a flight deal from United States to Chicago?

Can I find flights from United States to Chicago with flexible booking policies on momondo?

How can momondo help me find flights from United States to Chicago?

I’m not ready to book a flight from United States to Chicago right now. Can momondo alert me if prices change?

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo