Practical guide

Chicago: know before you go

The practical Chicago briefing: airport trains, Ventra fares, the real hotel tax, lakefront weather by season, and what to book before you fly.

Need to know

The essentials, first

This page is the Chicago you need to know before you land: how to get in from the two airports, how the L and buses actually work, what a hotel bill really costs, and when the weather is worth the trip. For visa, currency, plugs, and inter-city travel, see the United States country guide.

  • Chicago adds a 4.5% hotel accommodations tax to room rates, and vacation rentals and shared housing add a 6% surcharge on top, for a 10.5% city total.SourceCity of Chicago, Department of Finance
  • A single CTA train ride costs $2.50 and a bus ride $2.25, with free transfers for up to two more rides within two hours.SourceCTA Fare Information
  • Boarding the Blue Line at O'Hare costs $5 instead of the usual $2.50 train fare; a one-day or longer pass skips that premium.SourceCTA Fare Information
  • A new Ventra card costs $5, but the fee converts to transit value if you register the card within 90 days.SourceCTA Fare Information
When to go

When is the best time to visit Chicago?

Spring

Months
March to May
Weather
Highs climb from 47°F in March to 70°F in May, while nights still run from the 30s into the low 50s, so layers and a wind shell are the honest packing advice.SourceIllinois State Climatologist
Crowds
A shoulder season with lighter museums than summer, but spring break and the St. Patrick's Day river dyeing bring short, sharp spikes in March.

Summer

Months
June to August
Weather
Highs average 80°F to 85°F, July is the warmest month at 84°F, and humidity hangs high, especially near the lake.SourceIllinois State Climatologist
Crowds
Peak season. Grant Park fills with festivals, the lakefront paths are packed, and hotels and river cruises cost the most.

Autumn

Months
September to November
Weather
Highs ease from 75°F in September to 48°F in November, and early fall is the mildest, driest stretch of the year.SourceIllinois State Climatologist
Crowds
Crowds drop after Labor Day, though the Chicago Marathon fills downtown hotels and closes streets for one October weekend.

Winter

Months
December to February
Weather
January is the coldest month, averaging a 32°F high and a 19°F low, with about 11 inches of snow.SourceIllinois State Climatologist
Crowds
The low season. Museum lines are short, but the wind off Lake Michigan is raw and some outdoor sites trim hours or close.
When to visit Chicago, by season
SeasonMonthsWeatherCrowds
SpringMarch to MayHighs climb from 47°F in March to 70°F in May, while nights still run from the 30s into the low 50s, so layers and a wind shell are the honest packing advice.SourceIllinois State ClimatologistA shoulder season with lighter museums than summer, but spring break and the St. Patrick's Day river dyeing bring short, sharp spikes in March.
SummerJune to AugustHighs average 80°F to 85°F, July is the warmest month at 84°F, and humidity hangs high, especially near the lake.SourceIllinois State ClimatologistPeak season. Grant Park fills with festivals, the lakefront paths are packed, and hotels and river cruises cost the most.
AutumnSeptember to NovemberHighs ease from 75°F in September to 48°F in November, and early fall is the mildest, driest stretch of the year.SourceIllinois State ClimatologistCrowds drop after Labor Day, though the Chicago Marathon fills downtown hotels and closes streets for one October weekend.
WinterDecember to FebruaryJanuary is the coldest month, averaging a 32°F high and a 19°F low, with about 11 inches of snow.SourceIllinois State ClimatologistThe low season. Museum lines are short, but the wind off Lake Michigan is raw and some outdoor sites trim hours or close.
The practical guide

Everything to sort before you go

Getting in from the airport

Chicago has two airports, and both connect to downtown by train. O'Hare is the big international hub, and the Blue Line runs from its lower level into the Loop in 40 to 45 minutes, all day and all night. Midway is smaller and closer, with the Orange Line making the run to the Loop in 20 to 25 minutes. A taxi from O'Hare costs about $40, and a rideshare runs about $35 to $50 before surges. From Midway, a taxi is about $25.

The Blue Line runs 24 hours a day and takes 40 to 45 minutes from O'Hare to downtown. SourceCTA Airport Train Service

The Orange Line takes 20 to 25 minutes from Midway to the Loop and costs $2.50. SourceCTA Airport Train Service

A taxi to downtown runs about $40 from O'Hare and about $25 from Midway. SourceCTA Airport Train Service

Getting around

Everything local runs on Ventra, and you do not need to buy a card in advance. Tap a contactless credit or debit card, or a phone in Apple Wallet or Google Wallet, at any L turnstile and the standard fare is deducted. Buses cost $2.25 and trains $2.50, and transfers are free for up to two additional rides within two hours. If you plan to move around a lot, the $5 one-day pass pays for itself after three rides, and the seven-day pass is $20. The L is not a tourist ride; it is the fastest way across a city where neighborhoods sit miles apart.

The L costs $2.50, buses cost $2.25, and transfers are free for up to two additional rides within two hours. SourceCTA Fare Information

A one-day CTA/Pace pass is $5, a three-day pass is $15, and a seven-day pass is $20. SourceCTA Fare Information

A new Ventra card costs $5; register it within 90 days and the $5 converts to transit value. SourceCTA Fare Information

You can pay with a contactless credit or debit card, or a phone in Apple Wallet or Google Wallet; cash on buses is $2.50. SourceRTA Paying for Your Ride

Money and payments

Chicago's main levy on visitors is the 4.5% hotel accommodations tax on the gross room charge. Vacation rentals and shared housing add a 6% surcharge, so a short-term rental carries a 10.5% city tax before state and county taxes appear on the bill. Large downtown hotels also began carrying a 1.5% Tourism Improvement District charge in 2026. Sales tax and tipping follow the national patterns in the United States country guide, so there is no separate Chicago rate to memorize.

Chicago's hotel accommodations tax is 4.5% of the gross room charge. SourceCity of Chicago, Department of Finance

Vacation rentals and shared housing add a 6% surcharge, for a 10.5% city total. SourceCity of Chicago, Department of Finance

Hotels with 100 or more rooms in specified downtown ZIP codes add a 1.5% Tourism Improvement District charge, effective May 2026. SourceCity of Chicago, Department of Finance

Safety and common scams

Chicago is a city of neighborhoods, and the parts you are most likely to walk, the Loop, River North, the Gold Coast, and the lakefront, are busy, well lit, and patrolled. Keep the same habits you would use in any large city: hold your phone firmly on crowded trains, and do not drift alone into unfamiliar blocks late at night. Call 911 for emergencies, and use 311 for non-emergency city services like noise, graffiti, or a blocked sidewalk. The lakefront is safe by day, but the winter wind off Lake Michigan drops the real-feel temperature fast, so a short walk can turn cold quicker than the air temperature suggests.

Health and emergencies

Chicago tap water comes from Lake Michigan and is safe to drink straight from the faucet. A refillable bottle is the right call, since parks and museums have fountains and bottle-fill stations. Summers run humid, so wear sunscreen even when the lake breeze feels cool. The real hazard is winter: wind chill off the lake can make a 32°F day feel like the teens, so pack a coat, hat, and gloves that can handle a walk across the Loop.

Staying connected

Cellular service is strong across the city, including in the Loop's subway tunnels, and every major carrier holds up fine. The one app worth downloading before you land is Ventra, which stores transit passes, checks balances, and can buy Metra tickets if you ride out to Hyde Park or the suburbs. Museums, libraries, and most coffee shops run free Wi-Fi, so a heavy data plan is a convenience rather than a requirement.

Ventra cards and passes can be added to an iPhone, Apple Watch, or Android device with Google Wallet, and rides can be paid with a contactless card. SourceRTA Paying for Your Ride

The Ventra app checks balances, loads value and passes, and sells Metra train tickets in-app. SourceCTA Fare Information

Etiquette and tipping

Chicagoans walk fast, especially downtown at rush hour. Stay to the right on stairs and escalators, step out of the flow before you check your phone, and do not stop at the top of an escalator. Doors close quickly on the L, so do not hold them for a friend unless the train is empty. Tipping works exactly like the rest of the country, and the country guide covers it. Locals call the trains the L, pronounced ell, and nobody expects you to say the El, though they will understand.

The language

English is the working language everywhere you will need it. Spanish is widely spoken on the South and West Sides, above all in Pilsen and Little Village, where many signs and menus are bilingual. A few local terms help: the L is the train system, the lakefront means the parks and paths along Lake Michigan, and the Loop is both the downtown core and the elevated train circuit around it. Streets run on a grid that starts at State and Madison, so an address like 800 North sits eight blocks north of the center.

Accessibility

The Loop, the lakefront, and the museum campuses are flat and mostly curb-cut, which makes getting around by wheelchair easier than in older, hillier cities. CTA buses all kneel and carry ramps, so the bus is the most predictable accessible option. Many L stations have elevators, but not every older station does, so check elevator status on the CTA site or in the app before you rely on a specific stop. Ride-hail and taxi fleets include wheelchair-accessible vehicles, but book them ahead rather than flagging one down.

Public holidays and hours

Chicago's own event calendar moves crowds and closes streets more than the national holidays do. St. Patrick's Day turns the Chicago River green and packs downtown around the Saturday parade in March. Lollapalooza takes over Grant Park for a long weekend in early August, closing parts of the lakefront and pushing hotel prices up for blocks around. The Chicago Marathon shuts down streets through much of the city on a Sunday in October, so do not plan a car or taxi itinerary that morning. Check the city event calendar for your dates and book hotels around the big weekends.

What to book ahead

You do not need a reservation for most of Chicago, but a few things genuinely sell out. The architecture river cruise run by the Chicago Architecture Center is the city's single most popular tour, and summer departures often fill days ahead, so book it before you fly. Timed entry at the Art Institute and the Museum of Science and Industry is worth reserving on busy weekends. Deep-dish restaurants run long dinner waits, but most seat walk-ins early; only a small number of the fancier rooms require a booking weeks out.

Do it yourself

Follow it in the app

One flat route from the Bean to the river, with hours, tickets, and lunch stops kept in your pocket.

Provenance · last verified August 19, 2026

Researched by Wayside, with every operational fact checked against the source.

SourcesCity of Chicago, Department of FinanceCTA Fare InformationIllinois State ClimatologistCTA Airport Train ServiceRTA Paying for Your Ride

Photo by Dylan LaPierre on Unsplash

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