What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

How many flights depart from United States to Chicago on average per day?

As of January 2026, 407 flights take off from United States and land in Chicago each day. The most common flight departure time for this route is 3:00PM, with 42% of daily flights taking off at noon.

How many flights depart from United States to Chicago on average per week?

As of January 2026, 2,853 flights take off from United States and land in Chicago each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

What airlines fly to Chicago?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Chicago from United States according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 12 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago?

Average flight duration from United States to Chicago depends on which airport you fly into and out of. Flying from New York to Chicago O'Hare Intl Airport is 2h 46m on average, while flying from Boston to Chicago O'Hare Intl Airport is 2h 50m on average. Chicago O'Hare Intl Airport is the most popular airport in Chicago.

How often are flights from the United States to Chicago delayed?

Historically, on average around 14% of flights between United States and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 152 minutes.

What is the most punctual flight time for the United States to Chicago flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on the United States to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

What is the cheapest airline that flies from United States to Chicago?

Spirit Airlines, Frontier, and Delta are the most popular carriers operating from United States to Chicago

When did momondo last update prices for flights from United States to Chicago?

Prices for flights from United States to Chicago are updated daily.

How many operators does momondo search for flights from United States to Chicago?

The number of operators available for flights from United States to Chicago is 11 as of January 2026.

How old do you have to be to fly from United States to Chicago?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Chicago.

What documentation or ID do you need to fly to Chicago?

The necessary travel and health documents for your Chicago 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.

$49 Cheap Flights from the United States to Chicago in 2026

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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

Enter your travel dates to find the best prices.

3:26 pm - 11:47 pm

ATL

ORD

9h 21m

1 stop

6:02 pm - 9:34 pm

ORD

ATL

2h 32mnonstop

$78Multiple Airlines

Tue, Feb 10 - Tue, Feb 17

9:20 pm - 10:44 pm

ATL

ORD

2h 24mnonstop

12:36 pm - 3:49 pm

ORD

ATL

2h 13mnonstop

$79Frontier

Sat, Feb 7 - Wed, Feb 11

9:20 pm - 10:44 pm

ATL

ORD

2h 24mnonstop

6:02 pm - 9:34 pm

ORD

ATL

2h 32mnonstop

$80Frontier

Sat, Feb 7 - Wed, Feb 11

11:05 pm - 12:40 am

EWR

ORD

2h 35mnonstop

6:51 pm - 10:00 pm

ORD

EWR

2h 09mnonstop

$90Spirit Airlines

Thu, Feb 12 - Mon, Feb 16

11:05 pm - 12:40 am

EWR

ORD

2h 35mnonstop

8:16 pm - 10:57 am

ORD

EWR

13h 41m

1 stop

$91Spirit Airlines

Sat, Feb 21 - Mon, Feb 23

6:00 am - 11:25 am

DCA

ORD

6h 25m

1 stop

11:00 am - 5:18 pm

ORD

DCA

5h 18m

1 stop

$207JetBlue

Mon, Mar 23 - Tue, Mar 24

6:00 am - 11:25 am

DCA

ORD

6h 25m

1 stop

11:00 am - 5:18 pm

ORD

DCA

5h 18m

1 stop

$208JetBlue

Thu, Mar 19 - Wed, Mar 25

12:45 am - 7:07 am

SFO

ORD

4h 22mnonstop

7:40 am - 10:38 am

ORD

SFO

4h 58mnonstop

$250United Airlines

Wed, Apr 1 - Tue, Apr 14

11:35 pm - 5:59 am

SFO

ORD

4h 24mnonstop

7:05 am - 9:55 am

ORD

SFO

4h 50mnonstop

$252American Airlines

Thu, Apr 30 - Tue, May 5

5:33 pm - 11:48 pm

SFO

ORD

4h 15mnonstop

11:26 am - 2:23 pm

ORD

SFO

4h 57mnonstop

$253American Airlines

Sat, Feb 21 - Tue, Feb 24

Frontier flights from United States to Chicago

Our best Frontier deals on United States to Chicago flight tickets

Frontier

Feb 5

ATL9:22 pmAtlanta Hartsfield-Jackson

2h 24m

ORD10:46 pmChicago O'Hare Intl

Feb 8

ORD5:40 amChicago O'Hare Intl

2h 17m

ATL8:57 amAtlanta Hartsfield-Jackson

$79

Frontier

Feb 7

ATL9:20 pmAtlanta Hartsfield-Jackson

2h 24m

ORD10:44 pmChicago O'Hare Intl

Feb 10

ORD6:07 pmChicago O'Hare Intl

2h 32m

ATL9:39 pmAtlanta Hartsfield-Jackson

$80

Frontier

Feb 4

ATL5:00 pmAtlanta Hartsfield-Jackson

2h 27m

ORD6:27 pmChicago O'Hare Intl

Feb 5

ORD2:42 pmChicago O'Hare Intl

2h 23m

ATL6:05 pmAtlanta Hartsfield-Jackson

$81

Spirit Airlines flights from United States to Chicago

Our best Spirit Airlines deals on United States to Chicago flight tickets

Spirit Airlines

Feb 12

EWR11:05 pmNewark

2h 35m

ORD12:40 amChicago O'Hare Intl

Feb 16

ORD6:51 pmChicago O'Hare Intl

2h 09m

EWR10:00 pmNewark

$90

Spirit Airlines

Feb 21

EWR11:05 pmNewark

2h 35m

ORD12:40 amChicago O'Hare Intl

Feb 23

ORD8:16 pmChicago O'Hare Intl

13h 41m

1 stop

EWR10:57 amNewark

$91

Spirit Airlines

Feb 11

ATL3:26 pmAtlanta Hartsfield-Jackson

6h 37m

1 stop

ORD9:03 pmChicago O'Hare Intl

Feb 18

ORD7:00 amChicago O'Hare Intl

12h 11m

1 stop

ATL8:11 pmAtlanta Hartsfield-Jackson

$92

Fly from

Fly to

Route

Depart

Return

Price

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Tue 2/10

3:26 pm-11:47 pm

1 stop9h 21m

Chicago O'Hare Intl

Tue 2/17

6:02 pm-9:34 pm

Nonstop2h 32m

$78

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 2/7

9:20 pm-10:44 pm

Nonstop2h 24m

Chicago O'Hare Intl

Wed 2/11

12:36 pm-3:49 pm

Nonstop2h 13m

$79

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 2/7

9:20 pm-10:44 pm

Nonstop2h 24m

Chicago O'Hare Intl

Wed 2/11

6:02 pm-9:34 pm

Nonstop2h 32m

$80

NewarkChicago

EWR - ORD

EWRORD

Newark

Thu 2/12

11:05 pm-12:40 am

Nonstop2h 35m

Chicago O'Hare Intl

Mon 2/16

6:51 pm-10:00 pm

Nonstop2h 09m

$90

NewarkChicago

EWR - ORD

EWRORD

Newark

Sat 2/21

11:05 pm-12:40 am

Nonstop2h 35m

Chicago O'Hare Intl

Mon 2/23

8:16 pm-10:57 am

1 stop13h 41m

$91

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Mon 3/23

6:00 am-11:25 am

1 stop6h 25m

Chicago O'Hare Intl

Tue 3/24

11:00 am-5:18 pm

1 stop5h 18m

$207

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Thu 3/19

6:00 am-11:25 am

1 stop6h 25m

Chicago O'Hare Intl

Wed 3/25

11:00 am-5:18 pm

1 stop5h 18m

$208

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 4/1

12:45 am-7:07 am

Nonstop4h 22m

Chicago O'Hare Intl

Tue 4/14

7:40 am-10:38 am

Nonstop4h 58m

$250

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 4/30

11:35 pm-5:59 am

Nonstop4h 24m

Chicago O'Hare Intl

Tue 5/5

7:05 am-9:55 am

Nonstop4h 50m

$252

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 2/21

5:33 pm-11:48 pm

Nonstop4h 15m

Chicago O'Hare Intl

Tue 2/24

11:26 am-2:23 pm

Nonstop4h 57m

$253

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

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

Delays

Other information

What is the cheapest month to fly to Chicago?

The month of January is, on average, the cheapest month to fly to Chicago from United States, with most prices found around $187. If you’re not able to fly to Chicago in January, then February is your next best option. Flight prices from United States to Chicago during February average around $187.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $289. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from United States to Chicago for around $361.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from United States to Chicago during this time can be as low as $268. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $363.

What is the cheapest United States to Chicago flight route?

Fly from Newark to Chicago Midway for the best United States - Chicago flight prices

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $237 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from United States for as low as $168 on momondo.

What cabin class options are available on United States to Chicago flights?

There are 4 cabin classes available to choose from on United States to Chicago 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 flights?

No. A direct flight is the cheapest option for a flight between United States to Chicago.

Cheap United States to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Chicago

Best Price Found	$48
Fastest flight time	0h 50m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from United States in the past 72 hours is $48. The best round-trip flight deal from United States to Chicago found on momondo in the last 72 hours is $72.

The fastest flight from United States to Chicago takes 0h 50m

Direct flights go from United States to Chicago every day.

There are 3 airports in Chicago. From United States there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

When did momondo last update prices for flights from United States to Chicago?
Prices for flights from United States to Chicago are updated daily.
How many operators does momondo search for flights from United States to Chicago?
The number of operators available for flights from United States to Chicago is 11 as of January 2026.
How old do you have to be to fly from United States to Chicago?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Chicago.
What documentation or ID do you need to fly to Chicago?
The necessary travel and health documents for your Chicago 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?
Based on momondo bookings for flights between United States and Chicago, the leading plane model is Boeing 737-800, making up 19.79% of the total bookings. Other popular models include Airbus A321neo with 13.94%, Boeing 737-900 with 9.63%, and Embraer 175 with 6.48%.

Best airlines flying from United States to Chicago

Compare and see reviews for airlines that fly from United States to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $43	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $45	Free Cancellation	Rating 6.3 8,387 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $68	Free Cancellation	Rating 7.2 2,891 reviews	Search JetBlue flights
Delta	PriceFrom $80	Free Cancellation	Rating 7.9 8,124 reviews	Search Delta flights
Allegiant Air	PriceFrom $91	Free Cancellation	Rating 7.2 706 reviews	Search Allegiant Air flights
Hawaiian Airlines	PriceFrom $101	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,268 reviews	Search Southwest flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,209 reviews	Search United Airlines flights
American Airlines	PriceFrom $128	Free Cancellation	Rating 7.2 11,201 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $130	Free Cancellation	Rating 6.9 343 reviews	Search Sun Country Air flights

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

Munster

Crown Point

Chesterton

Monticello

Porter

Griffith

Saint John

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?

Yes. momondo enables you to select and highlight flights to Chicago from United States with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from United States.

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

Yes momondo offers price alerts on flights to Chicago from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chicago 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.

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Find better results for your trip to the United States

Cheap flights from the United States to Chicago from $50

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 3/5. 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

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Filter for what you want

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

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Frontier flights from United States to Chicago

Our best Frontier deals on United States to Chicago flight tickets

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Our best Spirit Airlines deals on United States to Chicago flight tickets

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See travel insights to Chicago from

How to get the cheapest flight ticket from United States to Chicago

What is the cheapest month to fly to Chicago?

What is the cheapest day to depart on your flight to Chicago?

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from United States to Chicago during this time can be as low as $268. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $363.

What is the cheapest United States to Chicago flight route?

Fly from Newark to Chicago Midway for the best United States - Chicago flight prices

How far in advance should I book a flight to Chicago?

What cabin class options are available on United States to Chicago flights?

There are 4 cabin classes available to choose from on United States to Chicago 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 flights?

No. A direct flight is the cheapest option for a flight between United States to Chicago.

What is the cheapest airline that flies from United States to Chicago?

Spirit Airlines, Frontier, and Delta are the most popular carriers operating from United States to Chicago

What airlines fly to Chicago?

How often are flights from the United States to Chicago delayed?

Historically, on average around 14% of flights between United States and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 152 minutes.

What is the most punctual flight time for the United States to Chicago flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

How many flights depart from United States to Chicago on average per day?

As of January 2026, 407 flights take off from United States and land in Chicago each day. The most common flight departure time for this route is 3:00PM, with 42% of daily flights taking off at noon.

How many flights depart from United States to Chicago on average per week?

As of January 2026, 2,853 flights take off from United States and land in Chicago each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

How long does it take to fly to Chicago?

Cheap United States to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Chicago

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

When did momondo last update prices for flights from United States to Chicago?

How many operators does momondo search for flights from United States to Chicago?

How old do you have to be to fly from United States to Chicago?

What documentation or ID do you need to fly to Chicago?

What is the most popular plane model from United States to Chicago?

Best airlines flying from United States to Chicago

Compare and see reviews for airlines that fly from United States to Chicago 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 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 the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago