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Cheap flights from Chicago to the United States from $45

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 1/5. 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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0 bags

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Find the cheapest flights from Chicago to the United States

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:55 am - 3:19 pm
ORD
-
JFK
2h 24mnonstop
Frontier Logo
4:29 pm - 6:29 pm
JFK
-
ORD
3h 00mnonstop
$76Frontier
Fri, Feb 6 - Mon, Feb 9
Frontier Logo
8:35 am - 11:59 am
ORD
-
JFK
2h 24mnonstop
Frontier Logo
4:24 pm - 6:24 pm
JFK
-
ORD
3h 00mnonstop
$78Frontier
Wed, Jan 7 - Wed, Jan 14
Frontier Logo
12:05 pm - 3:29 pm
ORD
-
JFK
2h 24mnonstop
Frontier Logo
4:29 pm - 6:29 pm
JFK
-
ORD
3h 00mnonstop
$79Frontier
Thu, Jan 22 - Thu, Jan 29
Frontier Logo
12:05 pm - 3:29 pm
ORD
-
JFK
2h 24mnonstop
Frontier Logo
4:29 pm - 6:29 pm
JFK
-
ORD
3h 00mnonstop
$80Frontier
Thu, Jan 22 - Thu, Jan 29
Frontier Logo
12:05 pm - 3:29 pm
ORD
-
JFK
2h 24mnonstop
Frontier Logo
4:29 pm - 6:29 pm
JFK
-
ORD
3h 00mnonstop
$81Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
6:40 am - 10:04 am
ORD
-
JFK
2h 24mnonstop
Frontier Logo
1:00 pm - 2:57 pm
JFK
-
ORD
2h 57mnonstop
$82Frontier
Mon, Jan 5 - Wed, Jan 7
Multiple Airlines Logo
9:15 am - 12:11 pm
ORD
-
DFW
2h 56mnonstop
Multiple Airlines Logo
11:06 am - 7:41 pm
DFW
-
ORD
8h 35m1 stop
$90Multiple Airlines
Sat, Jan 10 - Sat, Jan 17
Spirit Airlines Logo
8:43 pm - 12:59 am
ORD
-
FLL
3h 16mnonstop
Spirit Airlines Logo
8:54 am - 11:22 am
FLL
-
ORD
3h 28mnonstop
$94Spirit Airlines
Fri, Jan 23 - Mon, Jan 26
Spirit Airlines Logo
7:57 pm - 10:40 pm
ORD
-
DFW
2h 43mnonstop
Spirit Airlines Logo
1:35 pm - 4:00 pm
DFW
-
ORD
2h 25mnonstop
$94Spirit Airlines
Wed, Dec 31 - Tue, Jan 6
Spirit Airlines Logo
8:43 pm - 12:59 am
ORD
-
FLL
3h 16mnonstop
Spirit Airlines Logo
6:35 pm - 9:03 pm
FLL
-
ORD
3h 28mnonstop
$95Spirit Airlines
Fri, Feb 6 - Sun, Feb 8

United Airlines flights from Chicago to United States

Our best United Airlines deals on Chicago to United States flight tickets
United Airlines
Jan 14
ORD10:35 amChicago O'Hare Intl
4h 18m
LAS12:53 pmLas Vegas Harry Reid Intl
Jan 16
LAS12:30 amLas Vegas Harry Reid Intl
3h 38m
ORD6:08 amChicago O'Hare Intl
$145
Find similar
United Airlines
Jan 17
ORD1:00 pmChicago O'Hare Intl
4h 31m
LAX3:31 pmLos Angeles
Jan 19
LAX12:30 amLos Angeles
4h 00m
ORD6:30 amChicago O'Hare Intl
$159
Find similar

Southwest flights from Chicago to United States

Our best Southwest deals on Chicago to United States flight tickets
Southwest
Jan 13
ORD7:15 amChicago O'Hare Intl
4h 15m
LAS9:30 amLas Vegas Harry Reid Intl
Jan 16
LAS9:45 amLas Vegas Harry Reid Intl
3h 40m
ORD3:25 pmChicago O'Hare Intl
$159
Find similar
Southwest
Dec 17
MDW8:10 amChicago Midway
4h 35m
LAX10:45 amLos Angeles
Jan 18
LAX8:45 pmLos Angeles
6h 20m
1 stop
MDW5:05 amChicago Midway
$332
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 December 9, 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

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Fri 2/6

11:55 am-3:19 pm

Nonstop2h 24m

New York John F Kennedy Intl

Mon 2/9

4:29 pm-6:29 pm

Nonstop3h 00m

$76

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Wed 1/7

8:35 am-11:59 am

Nonstop2h 24m

New York John F Kennedy Intl

Wed 1/14

4:24 pm-6:24 pm

Nonstop3h 00m

$78

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Thu 1/22

12:05 pm-3:29 pm

Nonstop2h 24m

New York John F Kennedy Intl

Thu 1/29

4:29 pm-6:29 pm

Nonstop3h 00m

$79

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Thu 1/22

12:05 pm-3:29 pm

Nonstop2h 24m

New York John F Kennedy Intl

Thu 1/29

4:29 pm-6:29 pm

Nonstop3h 00m

$80

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Thu 2/5

12:05 pm-3:29 pm

Nonstop2h 24m

New York John F Kennedy Intl

Mon 2/9

4:29 pm-6:29 pm

Nonstop3h 00m

$81

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Mon 1/5

6:40 am-10:04 am

Nonstop2h 24m

New York John F Kennedy Intl

Wed 1/7

1:00 pm-2:57 pm

Nonstop2h 57m

$82

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Sat 1/10

9:15 am-12:11 pm

Nonstop2h 56m

Dallas/Fort Worth

Sat 1/17

11:06 am-7:41 pm

1 stop8h 35m

$90

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Fri 1/23

8:43 pm-12:59 am

Nonstop3h 16m

Fort Lauderdale

Mon 1/26

8:54 am-11:22 am

Nonstop3h 28m

$94

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Wed 12/31

7:57 pm-10:40 pm

Nonstop2h 43m

Dallas/Fort Worth

Tue 1/6

1:35 pm-4:00 pm

Nonstop2h 25m

$94

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Fri 2/6

8:43 pm-12:59 am

Nonstop3h 16m

Fort Lauderdale

Sun 2/8

6:35 pm-9:03 pm

Nonstop3h 28m

$95

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 $148. If you aren’t able to travel during the month of January, then book flights to United States from Chicago during February instead. Flights to United States in February, while not as cheap as those in January, still average around $184.

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 $265. 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 $383. 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 $229. Try not to purchase tickets at noon because they tend to be around $373. 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 Midway to Newark 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 $225 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 $165 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

$44

Fastest flight time

0h 27m

Direct flights

Every day

Airports in United States

1 airport
The best one-way flight to United States from Chicago in the past 72 hours is $44. The best round-trip flight deal from Chicago to United States found on momondo in the last 72 hours is $62.
The fastest flight from Chicago to United States takes 0h 27m
Direct flights go from Chicago to United States every day.
There is 1 airport near United States: New York John F Kennedy Intl (JFK)
Search flight deals

  • 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
FrontierPriceFrom $40Free CancellationRating
5.8
3,085 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $42Free CancellationRating
6.3
8,174 reviews
Search Spirit Airlines flights
JetBluePriceFrom $78Free CancellationRating
7.2
2,899 reviews
Search JetBlue flights
DeltaPriceFrom $98Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,818 reviews
Search Hawaiian Airlines flights
Sun Country AirPriceFrom $112Free CancellationRating
6.9
334 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $117Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $117Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
SouthwestPriceFrom $136Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
Allegiant AirPriceFrom $138Free CancellationRating
7.2
699 reviews
Search Allegiant Air 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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