Clayton, MO to Chicago, IL Flights

Cheap plane tickets from Clayton, MO to Chicago, IL can start from as little as $379 (€305) when you book in advance. The average flight ticket price for Clayton, MO to Chicago, IL is $420 (€339) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.

The average journey time by plane from Clayton, MO to Chicago, IL is 1h 29m to travel the 262 miles (423 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.

The earliest flight from Clayton, MO to Chicago, IL leaves at 1:15 AM. Plan your trip with the Journey Planner from Omio.

The latest flight from Clayton, MO to Chicago, IL leaves at 1:41 PM.

Flights from Clayton, MO to Chicago, IL generally leave from St. Louis Lambert International Airport and arrive in O'Hare International Airport.St. Louis Lambert International Airport is 1 miles (2 km) away from Clayton, MO city centre and O'Hare International Airport is 1 miles (3 km) from Chicago, IL city centre.

The cheapest month for a flight from Clayton, MO to Chicago, IL is April.

It's helpful to compare your options as there are 3 ways to travel between Clayton, MO and Chicago, IL including taking a train, bus, and flight.

Since neither Clayton, MO nor Chicago, IL are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.

There is no time difference between Clayton, MO and Chicago, IL.

The best events to attend in Chicago, IL include:

• Chicago Air and Water Show, an exhilarating display of military and civilian aircraft performing daring maneuvers over Lake Michigan
• Lollapalooza, a massive music festival featuring top artists across multiple genres in Grant Park
• Chicago Gourmet, a premier culinary event celebrating the city's vibrant food scene with tastings, cooking demonstrations, and wine pairings.

Some of the most interesting sights to explore in Chicago, IL are:

• Millennium Park, a public park known for its modern art installations and the iconic Cloud Gate sculpture
• Art Institute of Chicago, a renowned museum housing an extensive collection of art from around the world
• Navy Pier, a popular entertainment destination featuring rides, restaurants, and lakefront views
• Willis Tower Skydeck, an observation deck offering panoramic views of the city from one of the tallest buildings in the Western Hemisphere
• Field Museum, a natural history museum with vast exhibits including the famous T. rex skeleton, Sue.

The best holidays to experience in Chicago, IL include:

• Memorial Day, the unofficial start of summer with vibrant outdoor activities and events
• Independence Day, spectacular fireworks and festive celebrations throughout the city
• Labor Day, a lively atmosphere with various festivals and pleasant weather.

The best things to do in Chicago, IL include:

• Museum of Science and Industry, an interactive museum featuring exhibits on science, technology, and industry
• Explore the vibrant neighborhoods of Chicago, such as Wicker Park and Lincoln Park, known for their unique shops and eateries
• Take a river cruise to see the city's iconic architecture from a different perspective
• Attend a live performance at the historic Chicago Theatre
• Enjoy a day at Lincoln Park Zoo, one of the oldest zoos in the U.S., offering free admission.

The best season to visit Chicago, IL is Spring or Summer. The best weather to explore Chicago, IL is during May-September.

We recommend using the train as it is the most popular way to get from Clayton, MO to Chicago, IL among Omio's users.

For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.

Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.

Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.

The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.

The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.

In Chicago, IL, travelers should be cautious of pickpocketing and purse snatching, especially in crowded areas like public transit and popular tourist spots. Common scams include fake charity solicitations and distraction thefts. It is advisable to stay alert in neighborhoods outside downtown after dark and use authorized transportation services to avoid unlicensed taxi scams. Keeping valuables secure and being aware of surroundings helps mitigate these risks.

Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.