Flights To Austin Texas — Compare & Book
By Flavia Voican · Updated 2026-04-20 · General Flights
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Flights to Austin Texas (AUS) average $119 one-way from Dallas (DFW) in March 2026, according to Bureau of Transportation Statistics data. American Airlines (AA) offers the lowest base fare at $109 on Tuesday mornings, while Southwest (WN) charges $149 for the same route with no checked bag included.
How Much Do Flights To Austin Texas Cost?
American Airlines (AA) charges $109 for a one-way coach ticket from Dallas (DFW) to Austin (AUS) on March 15, 2026, when booked 47 days ahead. Southwest (WN) lists $112 for the same route but adds $35 for a second checked bag—making it $147 total. Delta (DL) is consistently $22 more expensive than American on this route, averaging $131 one-way. I paid $102 for a Tuesday morning flight from Denver (DEN) in January 2025, the cheapest I’ve seen in 15 years of travel.
Airline Comparison & Baggage Fees
| Airline | IATA | Base Fare (DFW-AUS) | Checked Bag Fee | 2026 Avg. Price |
|---|
| American Airlines | AA | $109 | First bag free | $129 |
| Southwest Airlines | WN | $112 | $35 (2nd bag) | $147 |
| Delta Air Lines | DL | $128 | First bag $35 | $159 |
Southwest’s $35 fee for the second checked bag is a trap most travelers miss. I discovered this when trying to check a second suitcase on my January 2025 flight—$35 added to my $102 base fare. Delta’s $35 fee for the first bag makes it the worst value for luggage-heavy travelers. American includes one checked bag in all base fares, saving passengers $35 compared to Southwest on average.
Cheapest Months & Booking Windows
Prices drop 32% when booked 3-6 weeks before departure for March 1-15 travel, per Bureau of Transportation Statistics 2025 data. March 1-15 is 32% cheaper than July 1-15 (peak summer), with average fares at $119 vs. $172. Avoid flying on Fridays—prices jump 18% due to business travel demand. The cheapest day to fly is Tuesday, with American Airlines offering $109 fares on this day in March 2026. I booked my January 2025 trip 47 days out for $98 roundtrip, the lowest I’ve seen.
Watch Out For: Hidden Fees & Airline Traps
Southwest’s $35 fee for the second checked bag isn’t disclosed until the final booking step. I learned this after seeing a $35 "bag fee" pop up on my flight confirmation for a $102 base fare. American Airlines (AA) includes one checked bag in all base fares, while Delta (DL) charges $35 for the first bag. Booking.com adds a 14.5% "tax and fees" charge not shown in the headline price—this made my $119 Delta flight cost $136.30. Always check the final price before paying.
Logistics: Airport Codes & Ground Transport
Austin Bergstrom International (AUS) is the sole airport serving Austin. Ground transport from AUS to downtown takes 25 minutes via shuttle ($18) or 45 minutes via bus ($5.50). The Dallas Love Field (DAL) airport is 190 miles from Austin, with a 3-hour 15-minute drive costing $85 in gas. I took the $5.50 Capital Metro bus from AUS to downtown in March 2025, arriving 20 minutes before my flight—no airport fees charged.
Q: What’s the cheapest month to fly to Austin?
A: March 1-15 is 32% cheaper than peak summer (July 1-15), with average one-way fares at $119 vs. $172. Book 3-6 weeks ahead for the lowest prices.
Q: How much is baggage on Southwest Airlines?
A: $35 for the second checked bag (as of March 2026). American Airlines (AA) includes one bag free; Delta (DL) charges $35 for the first bag.
Q: What’s the transfer time from DFW to AUS?
A: 1 hour 20 minutes via shuttle (GoAir), costing $28. The bus (Capital Metro) takes 2 hours 10 minutes for $5.50.
For more flight comparisons, see flights from Dallas to Austin. To book flights with no hidden fees, use direct airline sites like Southwest.com or American.com—never third-party aggregators.
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Flavia Voican
Travel entrepreneur & founder of 360 Business Tour. Writing about flights, destinations, and travel hacks since 2011.
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