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Cheap flights from the United States to Chicago from $55

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 3/4. 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 the United States to Chicago

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

Enter your travel dates to find the best prices.
Frontier Logo
10:17 pm - 12:53 am
DFW
-
ORD
2h 36mnonstop
Frontier Logo
5:11 am - 8:03 am
ORD
-
DFW
2h 52mnonstop
$82Frontier
Mon, Mar 9 - Thu, Mar 12
Multiple Airlines Logo
9:48 pm - 12:21 am
DFW
-
ORD
2h 33mnonstop
Multiple Airlines Logo
8:16 pm - 9:38 am
ORD
-
DFW
13h 22m
1 stop
$83Multiple Airlines
Sat, Mar 7 - Wed, Mar 11
Spirit Airlines Logo
11:05 pm - 12:40 am
EWR
-
ORD
2h 35mnonstop
Spirit Airlines Logo
6:51 pm - 10:00 pm
ORD
-
EWR
2h 09mnonstop
$88Spirit Airlines
Fri, Mar 6 - Sun, Mar 8
Spirit Airlines Logo
11:05 pm - 12:40 am
EWR
-
ORD
2h 35mnonstop
Spirit Airlines Logo
6:51 pm - 10:00 pm
ORD
-
EWR
2h 09mnonstop
$89Spirit Airlines
Thu, Feb 19 - Thu, Feb 26
United Airlines Logo
6:28 pm - 8:30 pm
BOS
-
ORD
3h 02mnonstop
United Airlines Logo
6:05 pm - 9:28 pm
ORD
-
BOS
2h 23mnonstop
$134United Airlines
Mon, Mar 2 - Mon, Mar 9
American Airlines Logo
7:00 am - 9:05 am
BOS
-
ORD
3h 05mnonstop
American Airlines Logo
8:45 pm - 11:59 pm
ORD
-
BOS
2h 14mnonstop
$135American Airlines
Wed, Feb 11 - Sat, Feb 14
American Airlines Logo
6:52 am - 9:03 am
BOS
-
ORD
3h 11mnonstop
American Airlines Logo
7:40 pm - 11:01 pm
ORD
-
BOS
2h 21mnonstop
$136American Airlines
Thu, Feb 26 - Mon, Mar 2
Delta Logo
6:45 pm - 11:56 pm
BOS
-
ORD
6h 11m
1 stop
Delta Logo
8:55 am - 5:04 pm
ORD
-
BOS
7h 09m
1 stop
$139Delta
Mon, Mar 2 - Mon, Mar 9
United Airlines Logo
7:45 am - 9:50 am
BOS
-
ORD
3h 05mnonstop
United Airlines Logo
7:30 am - 10:49 am
ORD
-
BOS
2h 19mnonstop
$140United Airlines
Wed, Feb 25 - Sun, Mar 1
Delta Logo
1:40 pm - 9:52 pm
SFO
-
ORD
6h 12m
1 stop
Delta Logo
7:10 pm - 11:59 pm
ORD
-
SFO
6h 49m
1 stop
$252Delta
Sat, Feb 21 - Mon, Mar 9

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
Mar 9
DFW10:17 pmDallas/Fort Worth
2h 36m
ORD12:53 amChicago O'Hare Intl
Mar 12
ORD5:11 amChicago O'Hare Intl
2h 52m
DFW8:03 amDallas/Fort Worth
$82
Frontier
May 7
DFW9:10 amDallas/Fort Worth
2h 32m
ORD11:42 amChicago O'Hare Intl
May 9
ORD4:55 pmChicago O'Hare Intl
3h 02m
DFW7:57 pmDallas/Fort Worth
$84
Frontier
Mar 7
DFW9:48 pmDallas/Fort Worth
2h 33m
ORD12:21 amChicago O'Hare Intl
Mar 11
ORD4:28 pmChicago O'Hare Intl
3h 01m
DFW7:29 pmDallas/Fort Worth
$85

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
Mar 6
EWR11:05 pmNewark
2h 35m
ORD12:40 amChicago O'Hare Intl
Mar 8
ORD6:51 pmChicago O'Hare Intl
2h 09m
EWR10:00 pmNewark
$88
Spirit Airlines
Feb 20
EWR11:05 pmNewark
2h 35m
ORD12:40 amChicago O'Hare Intl
Feb 23
ORD6:51 pmChicago O'Hare Intl
2h 09m
EWR10:00 pmNewark
$89
Spirit Airlines
Feb 9
LGA7:30 amNew York LaGuardia
2h 42m
ORD9:12 amChicago O'Hare Intl
Feb 10
ORD5:53 pmChicago O'Hare Intl
2h 06m
LGA8:59 pmNew York LaGuardia
$90

momondo Fare Finder

 
Customize your flight search to find flights from United States to Chicago O'Hare Intl Airport 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 February 1, 2026.
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

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Mon 3/9

10:17 pm-12:53 am

Nonstop2h 36m

Chicago O'Hare Intl

Thu 3/12

5:11 am-8:03 am

Nonstop2h 52m

$82

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 3/7

9:48 pm-12:21 am

Nonstop2h 33m

Chicago O'Hare Intl

Wed 3/11

8:16 pm-9:38 am

1 stop13h 22m

$83

NewarkChicago

EWR - ORD

EWRORD

Newark

Fri 3/6

11:05 pm-12:40 am

Nonstop2h 35m

Chicago O'Hare Intl

Sun 3/8

6:51 pm-10:00 pm

Nonstop2h 09m

$88

NewarkChicago

EWR - ORD

EWRORD

Newark

Thu 2/19

11:05 pm-12:40 am

Nonstop2h 35m

Chicago O'Hare Intl

Thu 2/26

6:51 pm-10:00 pm

Nonstop2h 09m

$89

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 3/2

6:28 pm-8:30 pm

Nonstop3h 02m

Chicago O'Hare Intl

Mon 3/9

6:05 pm-9:28 pm

Nonstop2h 23m

$134

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 2/11

7:00 am-9:05 am

Nonstop3h 05m

Chicago O'Hare Intl

Sat 2/14

8:45 pm-11:59 pm

Nonstop2h 14m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 2/26

6:52 am-9:03 am

Nonstop3h 11m

Chicago O'Hare Intl

Mon 3/2

7:40 pm-11:01 pm

Nonstop2h 21m

$136

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 3/2

6:45 pm-11:56 pm

1 stop6h 11m

Chicago O'Hare Intl

Mon 3/9

8:55 am-5:04 pm

1 stop7h 09m

$139

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 2/25

7:45 am-9:50 am

Nonstop3h 05m

Chicago O'Hare Intl

Sun 3/1

7:30 am-10:49 am

Nonstop2h 19m

$140

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 2/21

1:40 pm-9:52 pm

1 stop6h 12m

Chicago O'Hare Intl

Mon 3/9

7:10 pm-11:59 pm

1 stop6h 49m

$252

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 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 February is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from United States averaging around $218.

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 $291. 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 $362.

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 $271 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $364. 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 New York John F Kennedy Intl 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 $236 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 $178 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

$37

Fastest flight time

0h 50m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from United States in the past 72 hours is $37. The best round-trip flight deal from United States to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $77.
The fastest flight from United States to Chicago O'Hare Intl Airport takes 0h 50m
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?

  • 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?

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
FrontierPriceFrom $43Free CancellationRating
5.7
3,050 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $45Free CancellationRating
6.3
8,393 reviews
Search Spirit Airlines flights
JetBluePriceFrom $68Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
DeltaPriceFrom $79Free CancellationRating
7.9
8,128 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $101Free CancellationRating
7.8
2,830 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $117Free CancellationRating
7.4
9,226 reviews
Search United Airlines flights
American AirlinesPriceFrom $128Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
Sun Country AirPriceFrom $130Free CancellationRating
6.9
343 reviews
Search Sun Country Air flights
SouthwestPriceFrom $155Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $196Free CancellationRating
8.0
11,825 reviews
Search Alaska Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Naperville
Rosemont
New Buffalo
Kenosha
Joliet
Oak Brook
Orland Park
Racine
Hammond
Janesville
Tinley Park
Elgin
Aurora
South Holland

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.

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