$45 Find Cheap Flights from Chicago to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to the United States departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Chicago to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New Yorknonstop$74
Orlando
Orlandononstop$94
Los Angeles
Los Angelesnonstop$130
Las Vegas
Las Vegasnonstop$122
Miami
Miaminonstop$107
San Francisco
San Franciscononstop$246
Boston
Bostonnonstop$117
Washington, D.C.
Baltimore1 stop$97
Denver
Denver1 stop$97
Seattle
Seattle1 stop$177
Fort Lauderdale
Fort Lauderdalenonstop$94
Atlanta
Atlantanonstop$63
Dallas
Dallasnonstop$86
Phoenix
Phoenixnonstop$131
Tampa
Tampanonstop$106
Houston
Houstonnonstop$92
Honolulu
Honolulunonstop$504
San Diego
San Diegononstop$165
Philadelphia
Philadelphianonstop$108
New York
New Yorknonstop$74
Orlando
Orlandononstop$94
Los Angeles
Los Angelesnonstop$130
Las Vegas
Las Vegasnonstop$122
Miami
Miaminonstop$107
San Francisco
San Franciscononstop$246
Boston
Bostonnonstop$117
Washington, D.C.
Baltimore1 stop$97
Denver
Denver1 stop$97
Seattle
Seattle1 stop$177
Fort Lauderdale
Fort Lauderdalenonstop$94
Atlanta
Atlantanonstop$63
Dallas
Dallasnonstop$86
Phoenix
Phoenixnonstop$131
Tampa
Tampanonstop$106
Houston
Houstonnonstop$92
Honolulu
Honolulunonstop$504
San Diego
San Diegononstop$165
Philadelphia
Philadelphianonstop$108

Book Cheap Chicago to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Fri, Feb 20 - Mon, Feb 23
Frontier Logo
6:40 am - 10:04 amORD-JFK
2h 24mnonstop
Frontier Logo
11:00 am - 12:57 pmJFK-ORD
2h 57mnonstop
$74Frontier
Find Deal
Mon, Feb 16 - Thu, Feb 19
Frontier Logo
6:40 am - 10:04 amORD-JFK
2h 24mnonstop
Frontier Logo
11:00 am - 12:57 pmJFK-ORD
2h 57mnonstop
$75Frontier
Find Deal
Sun, Feb 8 - Thu, Feb 12
Frontier Logo
11:55 am - 3:19 pmORD-JFK
2h 24mnonstop
Frontier Logo
11:00 am - 12:57 pmJFK-ORD
2h 57mnonstop
$77Frontier
Find Deal
Mon, Dec 15 - Tue, Dec 16
Spirit Airlines Logo
4:38 pm - 7:42 pmORD-LGA
2h 04mnonstop
Spirit Airlines Logo
8:41 pm - 10:11 pmLGA-ORD
2h 30mnonstop
$89Spirit Airlines
Find Deal
Wed, Jan 7 - Tue, Jan 13
Spirit Airlines Logo
4:38 pm - 7:42 pmORD-LGA
2h 04mnonstop
Spirit Airlines Logo
7:30 am - 9:12 amLGA-ORD
2h 42mnonstop
$90Spirit Airlines
Find Deal
Sat, Jan 10 - Mon, Jan 12
United Airlines Logo
6:00 pm - 9:14 pmORD-LGA
2h 14mnonstop
United Airlines Logo
1:15 pm - 3:03 pmLGA-ORD
2h 48mnonstop
$91United Airlines
Find Deal
Thu, Jan 15 - Tue, Jan 20
United Airlines Logo
7:15 am - 10:03 amORD-DFW
2h 48mnonstop
United Airlines Logo
7:00 am - 9:29 amDFW-ORD
2h 29mnonstop
$91United Airlines
Find Deal
Sun, Jan 4 - Wed, Jan 7
American Airlines Logo
6:55 pm - 9:02 pmORD-LAS
4h 07mnonstop
American Airlines Logo
8:00 am - 1:43 pmLAS-ORD
3h 43mnonstop
$125American Airlines
Find Deal
Sat, Jan 31 - Wed, Feb 4
American Airlines Logo
7:40 pm - 9:48 pmORD-LAS
4h 08mnonstop
American Airlines Logo
2:08 pm - 7:56 pmLAS-ORD
3h 48mnonstop
$126American Airlines
Find Deal
Tue, Jan 6 - Wed, Jan 7
Southwest Logo
1:00 pm - 8:45 pmORD-PHX
8h 45m1 stop
Southwest Logo
9:05 am - 1:30 pmPHX-ORD
3h 25mnonstop
$134Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for Chicago to the United States flights

Get data-powered insights and trends into flights from Chicago to the United States to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Chicago found in the last 72 hours was to New York, at $39 round-trip. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Orlando Airport (MCO), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $82.

Can I save money by flying with a layover from Chicago to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $369, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Chicago to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to the United States is January, when tickets cost $155 (return) on average. On the other hand, the most expensive months are June and August, when the average cost of round-trip tickets is $237 and $237 respectively.

What’s the cheapest day of the week to fly from Chicago to United States?

The average price of all round-trip flights from Chicago to the United States clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to United States on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Chicago to United States. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to the United States, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to the United States, you should book around 3 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$45
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Chicago O'Hare Airport to Dallas/Fort Worth Airport

Flights from Chicago to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Chicago to the United States 
RogerFlew with Japan AirlinesORD-PITJun 2025
Make sure when you go from one airline to another that your bag is marked properly so they can get it on the right damn airplane. I did that and it still didn’t make it.
Verified travelerFlew with United AirlinesORD-LASMar 2025
If you can select your seats in advance please do
AndreaFlew with United AirlinesORD-ATLMay 2025
Ask for stewards to assist and provide amenities or you won’t get them.
Verified travelerFlew with American AirlinesORD-TPADec 2024
I recommend having movies and songs downloaded on your device.
Dr. JosephFlew with American AirlinesORD-DFWJan 2025
Be very vigilant about the weather both in Chicago and in Dallas. Adverse weather in either area can affect the trip.
JanieFlew with SWISSORD-PHXFeb 2025
I think you should prebook food or bring your own food.
Verified travelerFlew with Spirit AirlinesORD-LASSep 2024
Make sure you get your seats booked at time of booking or at the least when you check in and make sure you check in at the earliest to have preferred seating.
MikeFlew with American AirlinesORD-LAXSep 2024
Arrive early, grab a bottle of soda before getting on the plane and open it in the terminal. If you wait until flying the pressure will decarbonize the drink.
Verified travelerFlew with Alaska AirlinesORD-PDXSep 2024
Not many amenities at the terminal. I would suggest grabbing anything that catches your eye before you get all the way down. There weren't a lot of Alaska flights out of Chicago, and we were at the extreme end of the terminal.
Verified travelerFlew with British AirwaysORD-CIDSep 2024
Easy hop but we sure went to the most remote o’hare gate I think, prepare to walk a mile!
mauriceFlew with IberiaORD-JFKSep 2024
You should arrive early, take a lighht snack and be prepared for delays.
HeatherFlew with LufthansaORD-MKEAug 2024
Make sure there's enough time between connections to go through customs and recheck your luggage. They will not let you proceed so you can't even try to run and catch the flight if you want to.
DianaFlew with American AirlinesORD-INDJul 2024
Be sure to have name spelled correctly. Two hours early works well.
AlexanderFlew with Spirit AirlinesORD-LGAMay 2024
Know your connection options — specially when LaGuardia Airport (LGA) only has buses going to/from the airport to the rest of the city. Luckily, the one to the subway station (Q70) is free-of-charge to ride on!
Verified travelerFlew with United AirlinesORD-PHXApr 2024
Use the find my gate feature on the flights phone app if available as the airport is a bit confusing
AyannaFlew with Spirit AirlinesORD-TPAMay 2024
Fly out of Midway airport instead of O'Hare because its smaller and easier to manage.
PaulFlew with Alaska AirlinesORD-SEAApr 2024
The flight is long, at over four hours. I would try to get a window or aisle seat to be more comfortable. I would check with other airlines that allow you to choose your seat even if you are in the economy section. I would bring your own food on the plane as the service was sometimes sketchy.
EllenFlew with United AirlinesORD-DSMMay 2024
The flight is short enough that full beverage and snack service is limited or not offered at all. On this flight, we were offered orange juice or water. It makes sense that they can't do the full service, and doesn't bother me, but it's something to be aware of.
Verified travelerFlew with Alaska AirlinesORD-SEAApr 2024
If you miss your flight ask any alaska agent to how and where to rebook the flight.
UzomaFlew with American AirlinesORD-DCAJan 2024
ORD and DCA are nice airports with plenty of space. ORD is always busy so allow ample time to drive there, drop your bag, and go through security if you don't have TSA pre check.
LaurenFlew with Spirit AirlinesORD-MCOFeb 2024
If you can get by with a personal item, spirit has the best prices often at the best times to fly chicago to orlando for a weekend
Dr. JosephFlew with American AirlinesORD-CLTJan 2024
Be prepared to walk long distances in Charlotte. Make sure your layover time is sufficient to transition between arrival and departure gates.

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Chicago to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Chicago to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Chicago to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally at night, when round-trip flights cost $230 on average. Morning departures are around 16% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $372.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Chicago to the following destinations at these prices or less: Miami $137 one-way - $112 round-trip

Reviews of the top 5 airlines serving from Chicago to the United States

 
Need help choosing which airline to fly with from Chicago to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4253 reviews
8.1Boarding
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
Airline reviews

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

10.0 ExcellentDavid, Nov 2025BUF - PHX
Read more Southwest reviews

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

We loved the steward on the plane. He made the night enjoyable

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Terrible Airline I will never fly that airline again. Shame on you for recommending them.

Flight was canceled, huge lines to get baggage returned. Most other airlines had delays but not widespread cancellations like Spirit.

never ever fly spirit airlines you will be screwed in the end

I didn't eat, so I can't rate the food. Delayed set off was beyond

No free snacks or drinks. Freezing. Uncomfortable. No plugs or entertainment. If you fly to LA the make you change terminals with a slow bus. Awful trip that took forever. Terrible airline- maybe the worst I’ve ever flown.

I hope you continue to be one of the great company

Crew are always very angry and dismissive like they seem they are being forced to work. In addition, there was a long line for the bathrooms, and only one was allowed to be used. No reason was given for only one bathroom being available; apparently, the stewardess was more interested in using the jumpseat instead of allowing the customers to use the bathroom.

Very positive in both directions. Safe travels, nice staff, lost and found in fact found my phone under my chair! I was out of cash after my NYC trip otherwise I would've offered a reward for helping my day out immensly! Thanks you so much Spirit staff!

I stopped flying spirit as much because they are crooks and thieves. It's not like other airlines where you can at least get credits they just take your money.

Flight was on time. Friendly crew. Gate agents in the other hand were very unfriendly.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Everything you need to know for your flight from Chicago to the United States

Cabin class types available on flights to the United States

Cabin classes available on flights to the United States. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.