Flights to Chicago

$43 Cheap flights to Chicago

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Chicago departing on 1/20. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:46 am - 12:08 pm
ATL
-
ORD
2h 22mnonstop
Frontier Logo
5:40 am - 8:57 am
ORD
-
ATL
2h 17mnonstop
$69Frontier
Tue, Jan 13 - Thu, Jan 22
Frontier Logo
10:20 am - 11:35 am
ATL
-
ORD
2h 15mnonstop
Frontier Logo
5:50 am - 9:04 am
ORD
-
ATL
2h 14mnonstop
$70Frontier
Sat, Jan 10 - Mon, Jan 12
Multiple Airlines Logo
5:00 pm - 6:27 pm
ATL
-
ORD
2h 27mnonstop
Multiple Airlines Logo
7:20 am - 7:16 pm
ORD
-
ATL
10h 56m1 stop
$74Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Spirit Airlines Logo
7:30 am - 9:12 am
LGA
-
ORD
2h 42mnonstop
Spirit Airlines Logo
5:53 pm - 8:59 pm
ORD
-
LGA
2h 06mnonstop
$86Spirit Airlines
Sat, Jan 10 - Mon, Jan 12
Spirit Airlines Logo
7:30 am - 9:12 am
LGA
-
ORD
2h 42mnonstop
Spirit Airlines Logo
5:53 pm - 8:59 pm
ORD
-
LGA
2h 06mnonstop
$87Spirit Airlines
Fri, Jan 9 - Sun, Jan 11
Delta Logo
7:30 am - 9:41 am
BOS
-
ORD
3h 11mnonstop
Delta Logo
7:05 am - 10:40 am
ORD
-
BOS
2h 35mnonstop
$132Delta
Thu, Jan 15 - Tue, Jan 20
Delta Logo
8:00 am - 7:21 pm
SFO
-
ORD
9h 21m1 stop
Delta Logo
2:20 pm - 10:54 pm
ORD
-
SFO
10h 34m2 stops
$265Delta
Sat, Feb 7 - Mon, Feb 9
United Airlines Logo
1:35 pm - 8:05 pm
SFO
-
ORD
4h 30mnonstop
United Airlines Logo
12:45 pm - 3:35 pm
ORD
-
SFO
4h 50mnonstop
$267United Airlines
Wed, Jan 21 - Thu, Jan 22
American Airlines Logo
9:15 am - 9:05 pm
SFO
-
ORD
9h 50m1 stop
American Airlines Logo
7:26 pm - 10:24 pm
ORD
-
SFO
4h 58mnonstop
$268American Airlines
Wed, Feb 18 - Fri, Feb 20
United Airlines Logo
11:56 pm - 6:25 am
SFO
-
ORD
4h 29mnonstop
United Airlines Logo
2:40 pm - 5:36 pm
ORD
-
SFO
4h 56mnonstop
$271United Airlines
Fri, Jan 16 - Tue, Jan 20

momondo Fare Finder

 
Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on December 22, 2025.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

Route

Depart

Return

Price

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Tue 1/13

10:46 am-12:08 pm

Nonstop2h 22m

Chicago O'Hare Intl

Thu 1/22

5:40 am-8:57 am

Nonstop2h 17m

$69

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 1/10

10:20 am-11:35 am

Nonstop2h 15m

Chicago O'Hare Intl

Mon 1/12

5:50 am-9:04 am

Nonstop2h 14m

$70

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Tue 1/20

5:00 pm-6:27 pm

Nonstop2h 27m

Chicago O'Hare Intl

Tue 1/27

7:20 am-7:16 pm

1 stop10h 56m

$74

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Sat 1/10

7:30 am-9:12 am

Nonstop2h 42m

Chicago O'Hare Intl

Mon 1/12

5:53 pm-8:59 pm

Nonstop2h 06m

$86

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Fri 1/9

7:30 am-9:12 am

Nonstop2h 42m

Chicago O'Hare Intl

Sun 1/11

5:53 pm-8:59 pm

Nonstop2h 06m

$87

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 1/15

7:30 am-9:41 am

Nonstop3h 11m

Chicago O'Hare Intl

Tue 1/20

7:05 am-10:40 am

Nonstop2h 35m

$132

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 2/7

8:00 am-7:21 pm

1 stop9h 21m

Chicago O'Hare Intl

Mon 2/9

2:20 pm-10:54 pm

2 stops10h 34m

$265

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 1/21

1:35 pm-8:05 pm

Nonstop4h 30m

Chicago O'Hare Intl

Thu 1/22

12:45 pm-3:35 pm

Nonstop4h 50m

$267

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Wed 2/18

9:15 am-9:05 pm

1 stop9h 50m

Chicago O'Hare Intl

Fri 2/20

7:26 pm-10:24 pm

Nonstop4h 58m

$268

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 1/16

11:56 pm-6:25 am

Nonstop4h 29m

Chicago O'Hare Intl

Tue 1/20

2:40 pm-5:36 pm

Nonstop4h 56m

$271

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

Chicago flights insights and trends

Explore insights for your Chicago flight to craft the best travel plan

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 $179. 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 $189.

What is the absolute cheapest flight to Chicago?

In the past two weeks, users have booked deals to Chicago for $29/person, which is 89% cheaper than the average flight to Chicago. To find the cheapest price to Chicago from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

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 $291. 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 $369.

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 $269. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $365.

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 $242 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 $173 on momondo.

Cheapest flights to Chicago

Find the cheapest flights to Chicago from your nearest city or airport
CHEAPEST MONTH TO FLY TO CHICAGO FROM LOS ANGELESSeptember18% cheaperFlying from Los Angeles to Chicago costs on average just $242 in September
MOST EXPENSIVE MONTH TO FLY TO CHICAGO FROM LOS ANGELESDecember25% more expensiveIt costs about $368 for flights to Chicago from Los Angeles in December
MOST POPULAR MONTH TO FLY TO CHICAGO FROM LOS ANGELESJuly186% more users visitedMore momondo users searched in flights to Chicago from Los Angeles in July than any other month

Cheap Chicago flight deals and tips

Summary info about Chicago flight prices, duration and airlines

Best One-Way Price

$43

Best Round-Trip Price

$69

Fastest flight time

2h 35m

Popular in

August
The best one-way flight price to Chicago from United States in the last 72 hours is $43 (Atlanta Hartsfield-Jackson to Chicago O'Hare Intl).
The best round-trip flight price to Chicago from United States in the last 72 hours is $69 (Atlanta Hartsfield-Jackson to Chicago O'Hare Intl).
The fastest flight to Chicago from United States takes 2h 35m (Dallas/Fort Worth to Chicago O'Hare Intl).
August has the highest demand for flights to Chicago, with a 8% price increase on average.

Frequently asked questions about flying to Chicago

When is it best to fly to Chicago to go sightseeing?

The best time to plan to fly to Chicago to go sightseeing would be when the temperature is not unbearable and the chance of rain is only moderate. Considering those guidelines, May or June seems like the best time of year to plan your visit.

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

The best time to book a flight to Chicago from United States is 81 days out, which is when prices tend to be around $238. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $163.

Is there an alternative airport near Chicago?

Finding an alternative and possibly cheaper destination airport near Chicago is possible. If you are planning a flight to Chicago, consider booking flights to Chicago Midway Airport (9 mi from Chicago city center) or Chicago Greater Rockford Airport (79 mi from Chicago city center).

Is there a cheaper alternative to flying into Chicago?

The cheapest airport near Chicago is typically Chicago Greater Rockford Airport with an average price of $179/person. These prices vary based on where travelers are coming from. It is suggested that travelers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

Are there flights to Downtown?

Yes. To go to Downtown, book a flight to Chicago O'Hare Intl which is in Chicago and is about 15.7 mi away from Downtown.

What’s the closest airport to Magnificent Mile?

Chicago O'Hare Intl in Chicago is the closest airport to Magnificent Mile (distance: 15.5 mi).

When did momondo last update prices for flights to Chicago?

Prices for flights to Chicago are updated daily.

How many operators does momondo search for flights to Chicago?

How old do you have to be to fly 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 to Chicago.

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

The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Valparaiso
Schererville
Munster
Crown Point
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal 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 for you.

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

Yes. momondo allows you to filter the results for flights to Chicago to just show those with flexible booking policies.

How can momondo help me find flights to Chicago?

Once you have performed a search for flights to Chicago, momondo helps you find the right flight 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 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 and alert you when they change.

An easier way to manage your Chicago trip

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1 adult
Wed 1/21
Wed 1/28

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