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Cheap flights from Chicago to the United States from $51

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to the United States departing on 9/7. 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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0 bags

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Find the cheapest flights from Chicago to the United States

Cheap round-trip flights

Logo
6:30 am - 10:13 amORD-MCO
2h 43mnonstop
Logo
5:24 pm - 7:44 pmMCO-ORD
3h 20mnonstop
$96
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Tue, Sep 16 - Thu, Sep 25
Logo
5:17 pm - 9:06 pmORD-MCO
2h 49mnonstop
Logo
5:24 pm - 7:44 pmMCO-ORD
3h 20mnonstop
$97
Find Deal
Wed, Sep 17 - Fri, Sep 19
Logo
8:49 pm - 12:35 amORD-MCO
2h 46mnonstop
Logo
7:50 pm - 9:58 pmMCO-ORD
3h 08mnonstop
$98
Find Deal
Fri, Sep 5 - Tue, Sep 9
Frontier Logo
8:49 pm - 12:35 amORD-MCO
2h 46mnonstop
Frontier Logo
5:24 pm - 7:44 pmMCO-ORD
3h 20mnonstop
$99Frontier
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Mon, Sep 8 - Thu, Sep 11
Frontier Logo
5:30 pm - 8:21 pmORD-DFW
2h 51mnonstop
Frontier Logo
9:27 pm - 11:58 pmDFW-ORD
2h 31mnonstop
$100Frontier
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Sat, Sep 13 - Sun, Sep 14
United Airlines Logo
8:00 pm - 11:24 pmORD-LGA
2h 24mnonstop
United Airlines Logo
7:28 am - 9:05 amLGA-ORD
2h 37mnonstop
$127United Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 29
United Airlines Logo
4:00 pm - 7:17 pmORD-LGA
2h 17mnonstop
United Airlines Logo
1:18 pm - 2:55 pmLGA-ORD
2h 37mnonstop
$142United Airlines
Find Deal
Thu, Sep 4 - Wed, Sep 10
American Airlines Logo
1:59 pm - 5:17 pmORD-JFK
2h 18mnonstop
American Airlines Logo
11:00 am - 12:40 pmJFK-ORD
2h 40mnonstop
$152American Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
Southwest Logo
6:15 am - 8:15 amORD-LAS
4h 00mnonstop
Southwest Logo
6:00 pm - 11:40 pmLAS-ORD
3h 40mnonstop
$159Southwest
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Tue, Oct 7 - Wed, Oct 8
American Airlines Logo
7:05 am - 10:19 amORD-EWR
2h 14mnonstop
American Airlines Logo
7:22 pm - 9:01 pmEWR-ORD
2h 39mnonstop
$173American Airlines
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Wed, Sep 10 - Wed, Sep 10

Frontier flights from Chicago to United States

Our best Frontier deals on Chicago to United States flight tickets
Frontier
Aug 30
ORD7:46 pmChicago O'Hare Intl
3h 06m
MCO11:52 pmOrlando
Sep 6
MCO1:02 pmOrlando
3h 15m
ORD3:17 pmChicago O'Hare Intl
$97
Find similar
Frontier
Sep 8
ORD8:49 pmChicago O'Hare Intl
2h 46m
MCO12:35 amOrlando
Sep 11
MCO5:24 pmOrlando
3h 20m
ORD7:44 pmChicago O'Hare Intl
$99
Find similar
Frontier
Aug 30
ORD7:46 pmChicago O'Hare Intl
3h 06m
MCO11:52 pmOrlando
Sep 6
MCO1:02 pmOrlando
3h 15m
ORD3:17 pmChicago O'Hare Intl
$100
Find similar

JetBlue flights from Chicago to United States

Our best JetBlue deals on Chicago to United States flight tickets
JetBlue
Sep 12
ORD6:45 amChicago O'Hare Intl
2h 14m
JFK9:59 amNew York John F Kennedy Intl
Sep 15
JFK7:00 pmNew York John F Kennedy Intl
2h 49m
ORD8:49 pmChicago O'Hare Intl
$114
Find similar
JetBlue
Sep 16
ORD1:35 pmChicago O'Hare Intl
2h 24m
JFK4:59 pmNew York John F Kennedy Intl
Sep 20
JFK4:30 pmNew York John F Kennedy Intl
2h 53m
ORD6:23 pmChicago O'Hare Intl
$121
Find similar
JetBlue
Sep 6
ORD8:34 amChicago O'Hare Intl
2h 26m
JFK12:00 pmNew York John F Kennedy Intl
Sep 6
JFK4:30 pmNew York John F Kennedy Intl
2h 53m
ORD6:23 pmChicago O'Hare Intl
$127
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to United States that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Chicago to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOrlando

ORD - MCO

ORDMCO

Chicago O'Hare Intl

Tue 9/16

6:30 am-10:13 am

Nonstop2h 43m

Orlando

Thu 9/25

5:24 pm-7:44 pm

Nonstop3h 20m

$96

ChicagoOrlando

ORD - MCO

ORDMCO

Chicago O'Hare Intl

Wed 9/17

5:17 pm-9:06 pm

Nonstop2h 49m

Orlando

Fri 9/19

5:24 pm-7:44 pm

Nonstop3h 20m

$97

ChicagoOrlando

ORD - MCO

ORDMCO

Chicago O'Hare Intl

Fri 9/5

8:49 pm-12:35 am

Nonstop2h 46m

Orlando

Tue 9/9

7:50 pm-9:58 pm

Nonstop3h 08m

$98

ChicagoOrlando

ORD - MCO

ORDMCO

Chicago O'Hare Intl

Mon 9/8

8:49 pm-12:35 am

Nonstop2h 46m

Orlando

Thu 9/11

5:24 pm-7:44 pm

Nonstop3h 20m

$99

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Sat 9/13

5:30 pm-8:21 pm

Nonstop2h 51m

Dallas/Fort Worth

Sun 9/14

9:27 pm-11:58 pm

Nonstop2h 31m

$100

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Fri 9/19

8:00 pm-11:24 pm

Nonstop2h 24m

New York LaGuardia

Mon 9/29

7:28 am-9:05 am

Nonstop2h 37m

$127

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Thu 9/4

4:00 pm-7:17 pm

Nonstop2h 17m

New York LaGuardia

Wed 9/10

1:18 pm-2:55 pm

Nonstop2h 37m

$142

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Sat 10/4

1:59 pm-5:17 pm

Nonstop2h 18m

New York John F Kennedy Intl

Tue 10/7

11:00 am-12:40 pm

Nonstop2h 40m

$152

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 10/7

6:15 am-8:15 am

Nonstop4h 00m

Las Vegas Harry Reid Intl

Wed 10/8

6:00 pm-11:40 pm

Nonstop3h 40m

$159

ChicagoNewark

ORD - EWR

ORDEWR

Chicago O'Hare Intl

Wed 9/10

7:05 am-10:19 am

Nonstop2h 14m

Newark

Wed 9/10

7:22 pm-9:01 pm

Nonstop2h 39m

$173

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United States from

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

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 United States?

In general, January is the cheapest month to fly from Chicago to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $157. If you aren’t able to travel during the month of January, then book flights to United States from Chicago during September instead. Flights to United States in September, while not as cheap as those in January, still average around $162.

What is the cheapest day to depart on your flight to United States?

According to our data, Thursday is the cheapest day to fly to United States from Chicago. The lowest ticket price found for a Thursday departure recently was $263. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $384. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

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

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $236. Try not to purchase tickets at noon because they tend to be around $391. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Chicago to United States flight route?

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

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $229 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Chicago for as low as $179 on momondo.

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

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

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

Cheap Chicago to United States flight deals and tips

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

Best Price Found

$38

Fastest flight time

1h 55m

Direct flights

Every day

Airports in United States

2 airports
The best one-way flight to United States from Chicago in the past 72 hours is $38. The best round-trip flight deal from Chicago to United States found on momondo in the last 72 hours is $58.
The fastest flight from Chicago to United States takes 1h 55m
Direct flights go from Chicago to United States every day.
There are 2 airports near United States: Newark (EWR), New York LaGuardia (LGA)
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  • When did momondo last update prices for flights from Chicago to United States?

    Prices for flights from Chicago to United States are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to United States.

  • What documentation or ID do you need to fly to United States?

    The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Chicago to United States

Compare and see reviews for airlines that fly from Chicago to United States with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $31Free CancellationRating
6.3
8,039 reviews
Search Spirit Airlines flights
FrontierPriceFrom $50Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
JetBluePriceFrom $77Free CancellationRating
7.2
2,916 reviews
Search JetBlue flights
Allegiant AirPriceFrom $81Free CancellationRating
7.2
701 reviews
Search Allegiant Air flights
DeltaPriceFrom $88Free CancellationRating
7.9
7,982 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,668 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $119Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $127Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
SouthwestPriceFrom $148Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $167Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to United States from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United States quick and easy, saving you time and money.

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

Yes. All flights to United States from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to United States.

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

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

An easier way to manage your United States 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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