Expect long security queues at IAD, especially in the afternoon. Plan extra time for check-in to avoid missing your flight.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $98 (Frontier) |
One-way from | $48 (Kiwi.com) |
Popular in | December |
Cheapest in | July |
Average price | $638 |
Good round-trip deal | $457 or less |
Good one-way deal | $208 or less |
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Thu 12/25
6:04 pm-10:31 pm
1 stop5h 27m
Austin Bergstrom
Wed 12/31
5:59 pm-11:58 pm
1 stop4h 59m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Tue 12/16
12:19 pm-7:13 pm
1 stop7h 54m
Austin Bergstrom
Thu 1/1
5:20 am-12:55 pm
1 stop6h 35m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Tue 1/20
10:05 am-7:55 pm
2 stops10h 50m
Austin Bergstrom
Fri 1/23
6:30 am-2:11 pm
1 stop6h 41m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Thu 1/15
10:05 am-7:30 pm
2 stops10h 25m
Austin Bergstrom
Sun 1/18
5:10 am-2:11 pm
2 stops8h 01m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Sat 1/17
10:05 am-7:55 pm
2 stops10h 50m
Austin Bergstrom
Sun 1/18
5:10 am-2:11 pm
2 stops8h 01m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Mon 1/5
11:24 am-4:05 pm
1 stop5h 41m
Austin Bergstrom
Tue 1/6
3:05 pm-11:37 pm
1 stop7h 32m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Mon 12/29
12:00 pm-5:22 pm
1 stop6h 22m
Austin Bergstrom
Thu 1/1
6:25 am-12:55 pm
1 stop5h 30m
Washington, D.C.Austin
IAD - AUS
IADAUS
Washington, D.C. Dulles Intl
Tue 1/6
7:33 am-3:54 pm
1 stop33h 21m
Austin Bergstrom
Tue 1/13
7:15 am-4:26 pm
1 stop32h 11m
BaltimoreAustin
BWI - AUS
BWIAUS
Baltimore/Washington
Fri 12/19
6:04 pm-10:31 pm
1 stop5h 27m
Austin Bergstrom
Sat 12/20
5:59 pm-11:58 pm
1 stop4h 59m
Washington, D.C.Austin
IAD - AUS
IADAUS
Washington, D.C. Dulles Intl
Fri 1/30
6:04 pm-5:59 pm
1 stop24h 55m
Austin Bergstrom
Mon 2/2
7:15 am-4:26 pm
1 stop32h 11m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from Washington, D.C. to Austin is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from Washington, D.C. to Austin (average of $94). Flying from Washington, D.C. to Austin in January is currently the most expensive (average of $185). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Washington, D.C. to Austin at noon. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight in the afternoon.
Travelers seeking maximum savings on their Washington, D.C. to Austin flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to AUS are scheduled on a Friday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).
Denver (DEN) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. to Austin on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $250.
Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 8h 54m.
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 4h 42m.
Comfort
Crew
Entertainment
Food
Boarding
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Crew
Entertainment
Food
Boarding
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Crew
Entertainment
Food
Boarding
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Crew
Entertainment
Food
Boarding
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Crew
Entertainment
Food
Boarding
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Crew
Entertainment
Food
Boarding
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$191 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$138 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$164 | Average$225 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$168 | Average$447 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$220 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$231 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$297 | Average$496 | FlexibilityNo cancel fee | On-time63% |