Route guide · 248 miles
Cheap Flights from Dallas to San Antonio
DAL → SAT · Nonstop 1h 0m · Live round-trip fares
The run from Dallas (DAL) to San Antonio (SAT) is 248 miles of sky, and ticket prices on it are anything but steady. One week can cost double the next. Booking about 2–4 weeks in advance — and watching fares with a free Airfare Deal alert — is how regulars on this route keep costs down.
Live fares for DAL → SAT are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
1h 0m
Nonstop, typical
Distance
248 mi
DAL → SAT
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Southwest Airlines
Nonstop flights from Dallas to San Antonio
Want to skip the layover? Nonstops from Dallas to San Antonio are flown by Southwest Airlines, getting you there in about 1h 0m. For the lowest fares, book around 2–4 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Dallas → San Antonio
- Distance: 248 miles · nonstop flight time: 1h 0m.
- Cheapest upcoming week in the live data starts around Oct 29, with fares from $255.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Price trend
Cheapest departure weeks ahead
Departing around Oct 29 is currently the cheapest window — about $63 less than the nearest weeks. Based on recent fares found for this route; prices change quickly.
Cheapest month · Dallas → San Antonio
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$255
Cheapest: Thu, Oct 29 — $255 · Priciest: Oct 23 — $322
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Dallas to San Antonio: what you need to know
The flight
Dallas to San Antonio is a short hop — 248 miles, about 1h 0m gate to gate on a nonstop. You'll spend almost as long taxiing and boarding as you will in the air, so the real time-saver on this route is picking flight times that dodge rush hour at both ends.
Airlines on this route
Southwest Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Dallas (DAL)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Dallas airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in San Antonio (SAT)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The San Antonio airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check San Antonio to Dallas fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 248 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Morning flights are delayed less often than evening ones — earlier departures have the best on-time record.
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
Dallas to San Antonio flight FAQs
How long is the flight from DAL to SAT?
A nonstop from DAL to SAT clocks in at around 1h 0m for the 248-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from Dallas to San Antonio?
Yes — look for Southwest Airlines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Dallas to San Antonio?
Fares from Dallas to San Antonio tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from DAL to SAT?
Last-minute flights from DAL to SAT (booked within 7 days of departure) typically cost noticeably more than fares booked 2–4 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Dallas to San Antonio?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Dallas to San Antonio?
The main carriers on this route are Southwest Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Dallas airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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