Cheap flights from Chicago O'Hare International to San Antonio International

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Flight deals from Chicago O'Hare International to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International to San Antonio International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago O'Hare International to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to San Antonio International flights are currently cheapest in May.

Direct flights from Chicago O'Hare International to San Antonio International

Chicago O'Hare International to San Antonio International: Alternative routes

Compare routes from Chicago O'Hare International to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

Chicago to San Antonio: Flight information

The things to know before you go.
Cheapest flight foundP10,670
Cheapest month to flyMay
Average flight time3 hrs
Most popular airlineAmerican Airlines
Average flights per week329

Finding cheap flights from Chicago O'Hare International to San Antonio International: Frequently asked questions

The best price we found for a return flight from Chicago O'Hare International to San Antonio International is P10,670. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours is the average flight time from Chicago O'Hare International to San Antonio International.
American Airlines, Alaska Airlines and United fly direct from Chicago O'Hare International to San Antonio International.
As of April 2025, there are 193 flights per week flying from Chicago O'Hare International to San Antonio International.
The cheapest month to fly from Chicago O'Hare International to San Antonio International is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to San Antonio International Airport on Saturday, 17 May 2025.
Yes – the average flight time is 3 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and United offer the cheapest flight tickets to San Antonio International.

Flying from O'Hare International Airport (ORD) to San Antonio International Airport (SAT): what you need to know

  • Jump on a direct flight from O'Hare International Airport to San Antonio International Airport and you'll be travelling for an average of 2 hours 55 minutes.

  • Chicago and San Antonio are in the same timezone, UTC-5.

  • Take your pick of 90 weekly O'Hare International Airport to San Antonio International Airport flights. The 09:03 departure with United Airlines is the earliest available. American Airlines operates the last service of the day at 21:02.

  • To ensure you catch your ORD to SAT flight, allow plenty of time for things like check-in and baggage drop. Turning up two hours before international departures and one hour before domestic flights is the general rule.

  • You can expect longer queues in popular months such as August. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a good idea.

  • American Airlines has direct flights from O'Hare International Airport to San Antonio International Airport. Book with this popular carrier, then get ready to see the sights in San Antonio — and maybe even more of United States if time allows.

  • The majority of passengers choose to travel with American Airlines on this route.

  • The most punctual carrier that offers ORD to SAT flights is United Airlines. Its services arrive as scheduled 75.42% of the time.

  • If you want to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from O'Hare International Airport to San Antonio International Airport. Here are the top stopovers between ORD and SAT:

    • Dallas Love Field Airport

    • Dallas/Fort Worth International Airport

    • George Bush Intercontinental Airport

How to find the cheapest flights from O'Hare International Airport (ORD) to San Antonio International Airport (SAT)

  • The cheapest price we've found for a one-way O'Hare International Airport to San Antonio International Airport flight is P5,369. A round-trip ticket is currently P10,670. Depending on the availability when you book, these fares can change.

  • Book seven months before you want to fly. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from ORD to SAT.

  • Plan your trip for June. That's the cheapest month for flights from O'Hare International Airport to San Antonio International Airport. If your travel dates are flexible, use the 'Whole month' tool to see the lowest airfare across each month.

  • There's no need to check every day to see if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a new deal on cheap flights from ORD to SAT.

  • Tailor your trip using filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from O'Hare International Airport to San Antonio International Airport.

Handy information about O'Hare International Airport (ORD)

  • The address for ORD is 10000 West O'Hare.

  • When it comes to O'Hare International Airport's on-time performance, data shows 74.85% of flights arrive within the scheduled timeframe.

  • To get to O'Hare International Airport from central Chicago, it'll take around 35 minutes by car. Of course, this depends on traffic conditions. It's approximately 40 kilometres from the airport to the city centre.

  • Expect a trip time of around 55 minutes when using public transport.

  • Need a handy hotel close to ORD? If you're boarding an early flight from O'Hare International Airport to San Antonio International Airport, these stays will put you moments from check-in:

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • The address for SAT is 9800 Airport Boulevard.

  • From San Antonio International Airport, San Antonio is approximately 19 kilometres away. It takes around 20 minutes to reach the centre by car.

  • Getting to the centre on public transport takes about 1 hour 30 minutes.

When to fly to San Antonio International Airport (SAT)

  • It's time to pick your dates for your flight from O'Hare International Airport to San Antonio International Airport. July is the most popular month to head to San Antonio. If you're after a more low-key vibe, go in April.

  • Book your flight from O'Hare International Airport to San Antonio International Airport for August if you want to explore San Antonio during its warmest month. Expect temperatures of between 23ºC (73ºF) and 40ºC (104ºF).

  • If you want to travel in cooler conditions, look for a cheap ticket from ORD to SAT in January. Average temperatures are between 3ºC (37ºF) and 20ºC (68ºF) then.

Explore more of United States

  • Houston is just one of the many places in United States waiting to be explored after you've seen San Antonio. Around 306 kilometres away to the east, check out popular attractions including The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • Dallas is another well-known destination in United States and is around 402 kilometres north-east of San Antonio. No journey is complete without seeing Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.