Route guide · 140 miles
Cheap Flights from Austin to Houston
AUS → IAH · Nonstop 0h 47m · Live round-trip fares
If Houston is next on your list, here's the honest picture on fares from Austin. The trip covers about 140 miles and takes roughly 0h 47m in the air. Prices on this route reward planners: booking 2–4 weeks ahead is the sweet spot, and the lowest fares tend to sell out fast.
Live fares for AUS → IAH are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
0h 47m
Nonstop, typical
Distance
140 mi
AUS → IAH
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
United Airlines
Nonstop flights from Austin to Houston
Nonstop service links Austin and Houston directly — flights are flown by United Airlines. Expect roughly 0h 47m in the air. If a nonstop is what you want, don't wait too long: booking 2–4 weeks ahead is when these seats are priced most kindly.
Booking insights: Austin → Houston
- Distance: 140 miles · nonstop flight time: 0h 47m.
- Cheapest upcoming week in the live data starts around Oct 22, with fares from $235.
- 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 22 is currently the cheapest window — about $90 less than the nearest weeks. Based on recent fares found for this route; prices change quickly.
Cheapest month · Austin → Houston
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$235
Cheapest: Thu, Oct 22 — $235 · Priciest: Oct 16 — $325
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 Austin to Houston: what you need to know
The flight
Austin to Houston is a short hop — 140 miles, about 0h 47m 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
United 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 Austin (AUS)
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 Austin airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Houston (IAH)
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 Houston airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Houston to Austin fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 140 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
- Flexible dates? Search a few days either side — one day can change the fare a lot.
- 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.
Austin to Houston flight FAQs
How long is the flight from AUS to IAH?
Plan on about 0h 47m in the air for a nonstop from Austin to Houston — the route runs roughly 140 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Austin to Houston?
Yes — look for United Airlines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Austin to Houston?
Fares from Austin to Houston 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 AUS to IAH?
Book inside the final week and you'll usually pay a premium on AUS to IAH. Fares booked 2–4 weeks ahead are almost always kinder.
What is a good round-trip deal from Austin to Houston?
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 Austin to Houston?
The main carriers on this route are United Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Austin 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.
More cheap flights from Austin
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