Cheap Flights from Chicago, IL to USA from $18 - Find Tickets & Airfare Deals at Cheapflights.com

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How to find the cheapest flight from
Chicago (CHI) to USA

All the information you need to plan the best CHI to LAX flight in 2021: compare Chicago to USA flight prices with the expected peak season, weather and rainfall in USA.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 13 days in advance, which can save you up to 1% on flights from Chicago to USA compared to booking the week you need them. Waiting 13 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $170. For sooner than that we have options available in the next 3 days from $174.

What is the cheapest month to fly from Chicago to USA?

Our data shows that August tends to be the cheapest month to fly to USA from Chicago. Users have commonly found prices around $182 for the month, but tickets can be as low as $60. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Chicago to USA (CHI - US)?

When flying from Chicago to USA, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Chicago to USA in October, November 2021

The best prices found for CHI to USA flights for October, November

26 Oct - 26 Oct

$37pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

8 Nov - 10 Nov

$38pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

27 Oct - 28 Oct

$39pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

Chicago to USA 2021 flight deals

Cheap flights to USA from Chicago found for this year

26 Oct - 26 Oct

$37pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

8 Nov - 10 Nov

$38pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

27 Oct - 28 Oct

$39pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

Non-stop flights to USA from Chicago

Save time with Chicago to USA direct flight deals

2 Nov - 6 Nov

$37pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

4 Dec - 11 Dec

$38pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

6 Nov - 9 Nov

$39pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

Last minute flights from Chicago to USA

Late deals on round-trip flights to USA from Chicago, departing today and this week

26 Oct - 26 Oct

$37pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

27 Oct - 28 Oct

$39pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

31 Oct - 2 Nov

$40pp

ORD

Chicago O'Hare Intl

Spirit Airlines

Non-Stop

FLL

Fort Lauderdale

FLL

Fort Lauderdale

Spirit Airlines

Non-Stop

ORD

Chicago O'Hare Intl

One-way flights to USA from Chicago

The cheapest one-way flights from Chicago to USA

12:43 pm - 4:52 pm

Spirit Airlines

Nonstop

3h 09m

ORD - FLL

$18

Gotogate

3:45 am - 7:52 am

Spirit Airlines

Nonstop

3h 07m

ORD - FLL

$19

FlyFar

1:10 am - 5:09 am

Spirit Airlines

Nonstop

2h 59m

ORD - FLL

$20

FareScan

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Chicago</span> to <span class="emphasized">USA</span> flights.

Flight FAQs

From Chicago to USA

Which airlines flying from Chicago to United States have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Chicago to United States that may be offering flexible cancellation policies are Spirit Airlines, United Airlines, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Chicago to USA for under $100 on Cheapflights?

Yes, there are multiple flights from Chicago to USA for under $100. The cheapest flight booked recently is on Spirit Airlines for just $37, but on average you can expect to pay $45.

Are there nonstop flights from Chicago to USA for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to USA under $100. A good price for a nonstop flight from Chicago to USA is less than $45.

Are there last-minute flights available from Chicago to USA for under $100?

There are currently 20+ open flights from Chicago to USA within the next 7 days for less than $100.

What days are nonstop flights available from Chicago to USA?

You can find nonstop flights on the following days: Tuesday, Thursday, Friday, Saturday.

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

On average 37 flights depart from Chicago to USA per day.
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 14% of flight departures
Evening (6pm - Midnight) - 49% of flight departures

How long is the flight from Chicago to USA?

Departing from Chicago to USA will take you 3h 07m. The distance between Chicago and USA is about 1750 mi. Generally, flights for this route are nonstop.

What are the cheapest flights from Chicago to USA?

On average you can expect to pay $584 for a flight from Chicago to USA. The cheapest flight overall is $56 while the most popular route, (Chicago O'Hare Intl - New York LaGuardia) is currently priced at $67.

What are the most popular airlines that fly from Chicago to USA?

When booking a flight from Chicago to USA, you may want to consider flying on Major Airline, American Airlines or Alaska Airlines as they are the most popular for this route.

What are the most reliable airlines from Chicago to USA?

Consider Fiji Airways (100%), Air China (100%) or Azul (95%) when booking your flight. These represent the most reliable airlines when flying from Chicago to USA.

What are the most popular routes from Chicago to USA?

While some choose either Chicago O'Hare Intl - Newark or Chicago O'Hare Intl - New York John F Kennedy Intl, Chicago O'Hare Intl - New York LaGuardia is the most popular route from Chicago to USA.

Rent a Car

Car Rentals in USA

COVID Restrictions

View COVID Travel Restrictions for USA

Do I need a COVID test to fly to USA from Chicago?

Information is based on travel restrictions for travel to USA within the United States

Most visitors from Chicago need to provide a negative COVID-19 test result and/or quarantine to enter USA.

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to USA.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering USA.

Do I need a test to fly back to Chicago from USA?

Returning to Chicago from USA

COVID-19 testing requirements
Visitors from USA must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Chicago.

Quarantine requirements
Visitors from USA are not required to quarantine after entering Chicago.

Hide COVID Travel Restrictions for USA

Destination points for flights from Chicago to USA

Select to see more specific information for flights from Chicago to all places in USA.

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Destination information for USA

Things to know before you go - useful duration and weather info for your trip from Chicago to USA.

3h 08m

Airports servicing Chicago

O'Hare Intl (ORD)

Midway (MDW)

Rockford (RFD)

Airline	Cheapest	Average	Flexibility	On-time
Frontier	$38	$180	No cancel fee	62%
Delta	$48	$327	No cancel fee	N/A
United Airlines	$54	$296	No cancel fee	69%
Spirit Airlines	$54	$206	No cancel fee	65%
American Airlines	$64	$271	No cancel fee	71%
JetBlue	$71	$227	No cancel fee	62%
Alaska Airlines	$91	$327	No cancel fee	75%
Sun Country Air	$107	$238	No cancel fee	83%
Allegiant Air	$148	$264	No cancel fee	88%
Southwest	$189	$456	No cancel fee	63%