The Blue Line runs from inside O’Hare to the Loop, all night, every night. CTA charges a five dollar premium fare to board at O’Hare, which is still absurdly cheap against a taxi for five people plus bags. Coming back out there is no premium. Midway is on the Orange Line at the normal fare.

Budget for passes, not single rides. CTA has posted a 2026 increase: the bus base fare goes from 2.25 to 2.50 dollars and rail from 2.50 to 2.75, a Ventra single ride ticket is 3.50, the one day unlimited pass moves from 5 to 6 dollars and the seven day from 20 to 25. The three day pass has been scrapped entirely, so if your trip is three or four days you are choosing between three separate day passes and one seven day.

Three of the big five museums sit together on Museum Campus. Field Museum, Shedd Aquarium and Adler Planetarium are a walk apart on the same spit of parkland. The Art Institute is on Michigan Avenue at the edge of Millennium Park. Only the Griffin Museum of Science and Industry is somewhere else, down in Hyde Park, and that one is worth a deliberate half day rather than a squeeze.

The trap is renting a car for the Chicago days because you want it for the Starved Rock day. Do not. Rent it on the morning you leave the city and drop it when you come back, or pick it up at the end and drive out of town on your way home. Five days of downtown parking is a real number and it buys nothing while you are there.

Walking distances downtown are longer than they look on a phone. The Loop reads compact and then you are twenty five minutes into a walk to Museum Campus with a nine year old asking to stop. Chicago blocks are big. Plan on the bus for anything past about eight blocks with children.

Chicago CityPASS is 144 dollars an adult and 114 for a child aged three to eleven, and it covers five attractions over nine days. Two are compulsory, Shedd Aquarium with a 4-D show and Skydeck Chicago with expedited entry, and you pick the other three from the Field Museum, the Griffin Museum of Science and Industry, the Art Institute, Adler Planetarium, 360 Chicago and the Shoreline architecture river tour.

Watch the age cut off, because it costs you. CityPASS counts twelve and over as an adult. So for us that is three adult passes and two child, 432 plus 228, which is 660 dollars for the five of us. CityPASS puts the combined gate value at 288.90 an adult and 239.15 a child, so 1,345 dollars at the window and a saving of about 685.

That saving is only real if you genuinely do all five. Five attractions is five half days minimum, and with a nine year old it is closer to five whole ones. If you are in Chicago for four days and you also want the lakefront, Navy Pier and one unhurried morning, you are not doing five. You are doing three, and you have overbought.

If three is the honest number, look at Chicago C3 instead. Same company, choose any three, 109 dollars an adult and 79 for a three to eleven year old. For our five that is 485 dollars against 660. The catch is that C3 does not include Adler dome shows where the full CityPASS does, so if the planetarium is the thing your child is excited about, price it carefully.

Do not spend a CityPASS slot on the Art Institute if your children are under fourteen. Admission there is free for everyone under fourteen, resident or not. Adults pay 32 dollars, Illinois residents pay 20, and non resident teenagers aged fourteen to seventeen pay 26. For our family that is two adult tickets and three free children, 64 dollars total, walked up. Spending a pass slot on it is spending a slot on something most of your party already gets for nothing.

The individual gates, so you can check my working. Skydeck starts at 32 dollars for twelve and over and 24 for a three to eleven year old, under threes free, with expedited entry starting at 55. Adler starts at 25 and 13. Field Museum general admission starts at 30, drops to 21 for Chicago residents, and under threes are free. Griffin’s add ons are priced separately, 12 and 9 dollars for the Coal Mine and 18 and 14 for the U-505 onboard tour.

The nine day window is more useful than it sounds. It starts on the day you use the first attraction, not the day you buy. That means you can spread five attractions across a week without cramming, and it means a Chicago trip with a Galena or Springfield night in the middle still works on one pass.

Resident only, and the list is long. The Art Institute on third Thursdays and summer Thursdays, Adler on selected dates, the Field Museum every Wednesday, Shedd on selected days and evenings, the Griffin Museum of Science and Industry on scattered dates through the year, the Chicago History Museum, DuSable, the Museum of Contemporary Art and the Peggy Notebaert Nature Museum. All of them, Illinois residents. Out of state visitors are not eligible.

Do not plan to talk your way in. Residency is checked. Booking a free Shedd slot online carries a five dollar convenience fee per order, phone booking on 312-939-2438 has no fee, and walk up free reservations exist but sell out fast. None of that helps you if your driving licence says somewhere else.

What visitors actually can use. Under fourteens are free at the Art Institute regardless of where you live, which is the single biggest one. And a handful of museums are free to everybody all the time: the National Museum of Mexican Art, the Smart Museum of Art, the Museum of Contemporary Photography, the Jane Addams Hull-House Museum and the National Public Housing Museum. None of them are aquariums, but two hours in the Museum of Mexican Art in Pilsen costs nothing and is a completely different Chicago from the Loop.

Book the earliest slot of the day, every time. Shedd and Field both price by demand now, so the cheapest tickets are the ones bought well in advance for an off peak morning. The difference between booking in March for a nine o’clock Tuesday and buying at the door on a July Saturday is not small.

The January numbers, from the National Weather Service. Average high 31.6 degrees Fahrenheit, average low 18.8, and 11.3 inches of snow in the month. That is the normal, not the bad year. Add the wind coming off the lake, which is the part nobody’s average captures and the part your nine year old will complain about within four minutes.

The practical failure is the gap between indoor things. Museums are warm. The twenty minute walk between them is not, and a family of five stopping to redo gloves and hats twice a block is how a museum day becomes one museum. In winter, plan one indoor destination per half day and use the bus for everything, including short hops you would walk in June.

Skydeck in January is a coin toss. You are buying a view and low cloud takes it away, and unlike a museum there is no wet weather version of standing on the Ledge. If the observation deck is the thing your children care about, either keep the day flexible or accept you might pay for fog.

What does still work. The Centennial Wheel at Navy Pier stands nearly two hundred feet and its gondolas are fully enclosed, so it runs when it is cold. Wednesdays after six in the evening the rides are free. The museums are less crowded than any other time of year, and hotel rates in January and February are the lowest Chicago gets.

My actual recommendation on timing. Late May through mid June, or September. You get the lakefront working, Crown Fountain running, the Starved Rock waterfalls still flowing in late May, and you dodge the July and August heat and the school holiday crowds at the same time. If the budget only works in January, go in January and rebuild the itinerary around indoor days instead of pretending the weather will cooperate.

Deep dish is the famous one and tavern style is the one Chicago actually eats. Tavern style is a cracker thin round cut into squares, not wedges, and it is what turns up at a Chicago birthday party and a Chicago Friday night. Deep dish is a genuine local thing and it is also, honestly, a tourist ritual. Do it once.

The real reason this matters with children is time. A deep dish pizza is baked to order and takes a long while to come out of the oven. Sit down hungry with three children and that wait is the whole evening. Order it the moment you sit, or better, order ahead. Tavern style comes out fast.

The Chicago hot dog is the cheaper, quicker cultural lesson. Poppy seed bun, yellow mustard, relish, onion, tomato, a pickle spear, sport peppers, celery salt. No ketchup, and yes people mean it. It is a two dollar item that children find hilarious and it feeds five for less than a round of drinks.

Fill the day bag before you go out. Museum Campus food is captive audience pricing and the lakefront has long stretches with nothing. Water bottles and snacks in the bag on the way out of the hotel is the single boring habit that saves the most money in this city.

Starved Rock State Park is the best outdoor day in Illinois and it costs nothing. Illinois charges no entry fee at any state park and there is no parking pass. Thirteen miles of trail, eight canyons with waterfalls, French, Wildcat, LaSalle, Ottawa, Kaskaskia, Illinois, St Louis and Aurora. It is about a hundred miles southwest of the Loop, so a morning’s drive.

Get the season right or you will drive out to a dry gully. The falls run March through June and can dry out from late June through October, which is exactly when families with school age children turn up. Heavy rain can bring them back from November to March. The visitor centre opens 9 to 4 daily and closes on federal holidays from November through March. Trails are open 7am to sunset. There is a trail improvement project running through 2026, so check what is open before you commit the day.

Dogs are allowed on the trails on a lead, which matters if your dog travels with you. Ours does. They must be leashed, watered, never left unattended and never left in a parked car, and the busiest window is Friday to Sunday between eleven and three from mid March to the first week of November. Go at eight in the morning and it is a different park.

Galena is a town of 3,308 people that takes over a million visitors a year, and it earns them. Eighty five percent of its structures sit inside a National Register historic district and Main Street carries more than 125 shops and restaurants. It got rich on lead, 21 million pounds of it between 1825 and 1828, and by 1845 the county was producing eighty percent of all the lead in the United States.

Galena sent nine generals to the Civil War, including Ulysses S Grant. The town gave him a house when he came home in 1865 and it is now a state historic site. Suggested donation is 5 dollars an adult and 3 a child, open Wednesday to Sunday 9:30 to 3:30 and closed Monday and Tuesday, which catches people out.

Springfield is where the Lincoln material actually is, and half of it is free. The Abraham Lincoln Presidential Museum is 15 dollars an adult, 6 for a child aged five to fifteen, free under five, open 9 to 5 daily with last tickets at 4pm. For our five that is 48 dollars. The Presidential Library next door charges nothing. Lincoln Home National Historic Site charges no entrance fee at all, but you can only go inside on a ranger led tour and the free tickets come from the visitor centre desk on the day.

Two Springfield details that will otherwise annoy you. Lincoln Home parking is 2 dollars an hour and card only, no cash. And in peak season, March through November, the free tour tickets can run out before the last tour of the day, usually 4pm. Turn up in the morning.

The Begin Route 66 sign is at Adams Street and Michigan Avenue, on the north side, at 78 to 98 East Adams. The End sign, for traffic coming the other way, is a few blocks south at Jackson Drive and Michigan Avenue. Both are a short walk from the Art Institute, so you can photograph the start of a 2,400 mile road on the way to lunch.

Route 66 was commissioned in 1926, which makes this its hundredth year. Illinois carries 301 miles of it, more than most people realise, running southwest from that Chicago corner through Joliet and Pontiac and Springfield and on down to the Mississippi.

What is still ahead this centennial year. The International Route 66 Mother Road Festival in Springfield on 25 to 27 September 2026, and the Route 66 Centennial Conference, also Springfield, on 11 November 2026. Earlier events have already run this year, including the Red Carpet Corridor in May between Joliet and Bloomington, the Great Race in Springfield in June and the Illinois State Fair from 13 to 23 August.

How to do it with children without ruining a week. Do not attempt the whole 301 miles. Photograph the Begin sign in Chicago, then take the stretch from Springfield south as a single day on your way out of the state, or Chicago to Pontiac as an afternoon. Route 66 is a series of stops, not a drive, and the stops are what children like.

Families who want a real city without a car. If you have been putting off a big American city because of driving and parking and the sheer logistics of five people, Chicago is the one to start with. Train from the airport, walk or bus everywhere, museums clustered together.

Museum families and eight to fourteen year olds. This is the sweet spot age. Old enough for the Field and the Griffin and the Skydeck, young enough that the Bean and a boat are still exciting. Under fours will be carried more than you expect.

Anyone routing a bigger road trip through the middle of the country. Chicago as a four day city stop breaks up a long drive better than almost anywhere, and Route 66 gives you a spine to follow out of it.

Families who want beaches, mountains or a national park. Lake Michigan has good city beaches and Starved Rock has a canyon, and that is the ceiling. There is no national park in Illinois in the sense people mean. If that is what your week needs, go to Utah or Colorado.

Families on a tight budget in peak summer. Chicago in July is expensive and busy, and the free museum days that would rescue you are for residents. Winter is genuinely cheap, but read the winter section first and be honest about your children.

Anyone hoping to see the whole state. Eight days of Illinois is too many. Four to six is right, and most of them belong in one city.

Lake Michigan behaves like a sea. There is a horizon with no other side, there are waves, there is sand, and there are riptides. Every family I have spoken to expected a lake and got something closer to an ocean, and every one of them wished they had packed swimming things.

The no ketchup thing is not a joke people are doing for tourists. Ask for it on a hot dog and you will get a look. Children find this genuinely funny, so let them test it once and then let it go.

The Art Institute is closed on Tuesdays. It opens 11 to 5 most days, 11 to 8 on Thursdays, and the first hour from 10 to 11 is members only. That combination has ruined more than one carefully sequenced day.

How agricultural the state is once you leave. Twenty minutes past the last suburb it is corn and soy to the horizon in every direction. That is not a criticism, it is genuinely striking on a first drive, but it is not the scenic road trip people picture and it does not improve for the next two hours.

Chicago compares better to New York than to its Midwest neighbours. People arrive expecting a scaled down version of a big city and find a full sized one with better museums per dollar, more room to walk and a lakefront the east coast cannot match. Against Michigan or Wisconsin or Missouri, it is a completely different sort of trip, not a bigger one.

There are no theme parks in this plan and that is deliberate. Illinois has them, and if you want that week Orlando does it better and cheaper per day. Chicago is the trip where children come home talking about a submarine, a shark and a mirrored bean, and I would not trade that.