Cheap flights from San Antonio, TX to Chicago, IL
Choose between Frontier Airlines, Spirit Airlines, or United Airlines to find the best price
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Chicago
Cheapest nonstop round-trip | $130 |
---|---|
Nonstop flights in April | $130 – $247 |
Most popular airline | Frontier Airlines |
Search by stops
Search by carrier
Search by price
Search by departure date
Sorry, we couldn't find any results
Sorry, we couldn't find any results
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
Book your trip to arrive at O Hare International, Chicago Midway International, or Chicago Rockford International. The distance between San Antonio and Chicago is 1679 km. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, United Airlines, Allegiant Air, and Volaris. San Antonio and Chicago have 265 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from San Antonio to Chicago in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Sun 14.04 - Sat 20.04
Airline | Sun 14.04 | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 |
---|---|---|---|---|---|---|---|
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Weekly direct flights for Sun 21.04 - Sat 27.04
Airline | Sun 21.04 | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 |
---|---|---|---|---|---|---|---|
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Weekly direct flights for Sun 28.04 - Sat 04.05
Airline | Sun 28.04 | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 |
---|---|---|---|---|---|---|---|
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Weekly direct flights for Sun 05.05 - Sat 11.05
Airline | Sun 05.05 | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 |
---|---|---|---|---|---|---|---|
2 | 2 | 2 | 2 | 2 | 2 | 2 |
Check-in for a flight from San Antonio to Chicago
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Volaris | VOI | Y4 | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Chicago
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 0°C | -6°C |
February | 0°C | -5°C |
March | 6°C | 0°C |
April | 10°C | 4°C |
May | 17°C | 10°C |
June | 22°C | 16°C |
July | 25°C | 20°C |
August | 25°C | 19°C |
September | 22°C | 16°C |
October | 15°C | 10°C |
November | 8°C | 3°C |
December | 2°C | -1°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from San Antonio
- Flights from San Antonio to Las Vegas
- Flights from San Antonio to Mexico City
- Flights from San Antonio to Denver
- Flights from San Antonio to Orlando
- Flights from San Antonio to Guadalajara
- Flights from San Antonio to San Diego
- Flights from San Antonio to Atlanta
- Flights from San Antonio to Phoenix
- Flights from San Antonio to Los Angeles
- Flights from San Antonio to Washington, D.C.
- Flights from San Antonio to Cancún
- Flights from San Antonio to Raleigh
- Flights from San Antonio to Salt Lake City
- Flights from San Antonio to San José del Cabo
- Flights from San Antonio to Philadelphia
- Flights from San Antonio to New Orleans
- Flights from San Antonio to San Juan
- Flights from San Antonio to Paris
- Flights from San Antonio to New York
- Flights from San Antonio to Monterrey
Flights to Chicago
- Flights from Phoenix to Chicago
- Flights from Las Vegas to Chicago
- Flights from Denver to Chicago
- Flights from Orlando to Chicago
- Flights from San Francisco to Chicago
- Flights from Los Angeles to Chicago
- Flights from Tampa to Chicago
- Flights from Miami to Chicago
- Flights from Salt Lake City to Chicago
- Flights from New York to Chicago
- Flights from Atlanta to Chicago
- Flights from London to Chicago
- Flights from Sacramento to Chicago
- Flights from Minneapolis to Chicago
- Flights from Mexico City to Chicago
- Flights from Paris to Chicago
- Flights from Austin to Chicago
- Flights from Washington, D.C. to Chicago
- Flights from Fort Lauderdale to Chicago
- Flights from Fort Myers to Chicago
Popular routes
- Flights from Boston to San Juan
- Flights from Los Angeles to Cancún
- Flights from Cali to San Andrés
- Flights from Budapest to San Francisco
- Flights from San Francisco to Warsaw
- Flights from Miami to Zürich
- Flights from New York to Paris
- Flights from Ibiza to Los Angeles
- Flights from Orlando to Greensboro
- Flights from Shenzhen to Beijing
- Flights from Phoenix to Chicago
- Flights from Boston to San Diego
- Flights from Raleigh to Miami