Route guide · 776 miles
Cheap Flights from Denver to Austin
DEN → AUS · Nonstop 2h 5m · Live round-trip fares
Plenty of travelers price out Denver to Austin every day — here's how to beat the average fare. Nonstops run about 2h 5m, and the calendar matters more than the airline. Aim to book 2–4 weeks ahead, stay flexible on the day of the week, and set a free alert so a price drop never slips past you.
Live fares for DEN → AUS are updating. Use the search below for real-time prices.
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Flight time
2h 5m
Nonstop, typical
Distance
776 mi
DEN → AUS
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
3
Frontier Airlines, United Airlines & more
Nonstop flights from Denver to Austin
Want to skip the layover? Nonstops from Denver to Austin are flown by Frontier Airlines, United Airlines, Southwest Airlines, getting you there in about 2h 5m. For the lowest fares, book around 2–4 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Denver → Austin
- Distance: 776 miles · nonstop flight time: 2h 5m.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Tuesday and Wednesday departures usually undercut Friday and Sunday fares on routes like this one.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
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Flying from Denver to Austin: what you need to know
The flight
Denver to Austin covers 776 miles, and a nonstop gets it done in about 2h 5m. That's long enough to settle in with a coffee and a downloaded show, short enough that a connection rarely makes sense — a layover usually doubles your travel day to save very little.
Airlines on this route
Frontier Airlines, United Airlines and Southwest Airlines fly 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 Denver (DEN)
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 Denver airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Austin (AUS)
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 Austin airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Austin to Denver fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 776 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
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
- 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.
Denver to Austin flight FAQs
How long is the flight from DEN to AUS?
A nonstop from DEN to AUS clocks in at around 2h 5m for the 776-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from Denver to Austin?
Yes — look for Frontier Airlines, United Airlines, Southwest Airlines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Denver to Austin?
Fares from Denver to Austin 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 DEN to AUS?
Book inside the final week and you'll usually pay a premium on DEN to AUS. Fares booked 2–4 weeks ahead are almost always kinder.
What is a good round-trip deal from Denver to Austin?
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 Denver to Austin?
The main carriers on this route are Frontier Airlines, United Airlines, 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 Denver 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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