$147+ Cheap flights from Austin (AUS) to Dulles Intl (IAD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IAD
Nov 18 — Nov 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Austin to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Austin Bergstrom to Washington, D.C. Dulles Intl are usually found in July or May, booked 74 days in advance, depart on a Friday or Wednesday and return on a Saturday
Cheap flight deals from Austin to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to Dulles IntlExplore the most affordable flight options available from Austin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
Explore the most affordable flight options available from Austin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
This Mytrip deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:24 pm -
2 stops20h 57m
Wed 12/28:57 pm -
2 stops21h 59m
Deal found 10/17![Frontier logo]()
$289
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:34 pm -
2 stops14h 37m
Mon 12/710:35 pm -
2 stops22h 32m
Deal found 10/15![Frontier logo]()
$290
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:15 am -
1 stop5h 48m
Sat 11/2110:47 pm -
1 stop13h 02m
Deal found 10/15![Frontier logo]()
$291
This Expedia deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:51 am -
1 stop21h 30m
Sat 11/77:48 am -
1 stop6h 12m
Deal found 10/17![Frontier logo]()
$292
This Booking.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:24 pm -
2 stops20h 57m
Wed 11/187:25 pm -
2 stops26h 01m
Deal found 10/14![Frontier logo]()
$293
This CheapOair deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1211:10 am -
1 stop5h 28m
Wed 1/66:37 am -
1 stop27h 59m
Deal found 10/15![Frontier logo]()
$294
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:35 pm -
2 stops27h 36m
Thu 11/197:32 am -
1 stop7h 22m
Deal found 10/15![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:24 pm -
1 stop10h 19m
Mon 11/236:50 am -
2 stops14h 24m
Deal found 10/18![Frontier logo]()
$296
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:20 am -
1 stop7h 34m
Wed 11/188:05 am -
1 stop5h 42m
Deal found 10/14![Delta logo]()
$297
This Cheapflightsfares deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:24 pm -
1 stop10h 19m
Sat 11/711:16 am -
1 stop6h 46m
Deal found 10/18![Frontier logo]()
$298
This Frontier deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/198:27 pm -
1 stop8h 40m
Mon 12/2810:59 pm -
1 stop12h 01m
Deal found 10/17![Frontier logo]()
$299
This Frontier deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:24 pm -
1 stop10h 19m
Sat 11/77:48 am -
1 stop6h 12m
Deal found 10/19![Frontier logo]()
$300
Best flights from Austin to Dulles IntlDiscover carefully curated flight deals from Austin to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Austin to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/217:25 am -
Nonstop3h 06m
Fri 12/258:27 am -
Nonstop3h 55m
Deal found 10/14![United Airlines logo]()
$397
This KAYAK deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am -
1 stop6h 33m
Tue 11/37:18 am -
1 stop7h 58m
Deal found 10/14![American Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:15 am -
Nonstop3h 09m
Mon 11/98:30 am -
Nonstop3h 49m
Deal found 10/15![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:15 am -
Nonstop3h 09m
Sat 12/128:15 am -
Nonstop4h 03m
Deal found 10/16![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/193:49 pm -
1 stop7h 41m
Sun 11/226:00 pm -
Nonstop3h 50m
Deal found 10/16![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:00 am -
1 stop5h 35m
Thu 11/121:00 pm -
Nonstop3h 52m
Deal found 10/15![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:15 am -
1 stop5h 11m
Sun 12/138:15 am -
Nonstop3h 50m
Deal found 10/16![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:33 pm -
1 stop6h 05m
Mon 12/286:00 pm -
Nonstop3h 57m
Deal found 10/15![United Airlines logo]()
$563
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/227:25 am -
Nonstop3h 06m
Tue 12/296:00 pm -
Nonstop3h 57m
Deal found 10/17![United Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/127:15 am -
Nonstop3h 17m
Sun 3/148:38 am -
Nonstop3h 50m
Deal found 10/14![United Airlines logo]()
$603
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:05 pm -
Nonstop3h 10m
Mon 12/712:55 pm -
Nonstop3h 52m
Deal found 10/18![United Airlines logo]()
$603
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:10 pm -
Nonstop3h 10m
Thu 12/312:55 pm -
Nonstop3h 52m
Deal found 10/18![United Airlines logo]()
$603
Last-minute flights from Austin to Dulles IntlDiscover last-minute flight deals from Austin to Dulles Intl. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Dulles Intl. Data last updated October 19, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:51 am -
1 stop21h 30m
Sat 11/77:48 am -
1 stop6h 12m
Deal found 10/17![Frontier logo]()
$292
This Frontier deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:24 pm -
1 stop10h 19m
Sat 11/77:48 am -
1 stop6h 12m
Deal found 10/19![Frontier logo]()
$300
This Cheapflightsfares deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:24 pm -
1 stop10h 19m
Sat 11/711:16 am -
1 stop6h 46m
Deal found 10/18![Frontier logo]()
$298
This Mytrip deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:24 pm -
1 stop10h 19m
Wed 12/23:34 pm -
2 stops19h 33m
Deal found 10/18![Frontier logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:24 pm -
1 stop10h 19m
Sun 11/87:32 am -
2 stops28h 16m
Deal found 10/15![Frontier logo]()
$299
This Booking.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:24 pm -
2 stops20h 57m
Wed 11/187:25 pm -
2 stops26h 01m
Deal found 10/14![Frontier logo]()
$293
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:20 am -
1 stop7h 34m
Wed 11/188:05 am -
1 stop5h 42m
Deal found 10/14![Delta logo]()
$297
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:35 pm -
2 stops27h 36m
Thu 11/197:32 am -
1 stop7h 22m
Deal found 10/15![Frontier logo]()
$295
This Mytrip deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:24 pm -
2 stops20h 57m
Wed 12/28:57 pm -
2 stops21h 59m
Deal found 10/17![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:24 pm -
1 stop10h 19m
Mon 11/236:50 am -
2 stops14h 24m
Deal found 10/18![Frontier logo]()
$296
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:15 am -
1 stop5h 48m
Sat 11/2110:47 pm -
1 stop13h 02m
Deal found 10/15![Frontier logo]()
$291
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:17 pm -
1 stop22h 23m
Thu 11/2610:47 pm -
1 stop9h 33m
Deal found 10/15![Frontier logo]()
$301
One-way flights from Austin to Dulles IntlSearch for one-way flight options from Austin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Austin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:53 pm -
2 stops30h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2312:00 pm -
1 stop23h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:29 pm -
2 stops39h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/3110:45 am -
1 stop13h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$151
This Super.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:24 pm -
1 stop10h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Frontier logo]()
$153
This Super.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:24 pm -
1 stop10h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:24 pm -
2 stops30h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:24 pm -
2 stops20h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:21 pm -
2 stops43h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/264:40 pm -
2 stops18h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$160
Find flight deals from Austin to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $289 (Mytrip) |
One-way from | $147 (Kiwi.com) |
Popular in | January |
Cheapest in | July |
Average price | $588 |
Good round-trip deal | $464 or less |
Good one-way deal | $296 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 19, 2026.
Use the filters below to find and compare flights from Austin to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Tue 1/5
6:45 am-2:41 pm
1 stop6h 56m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$209
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Sat 11/7
12:25 pm-4:34 pm
Nonstop3h 09m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$231
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Wed 12/30
5:15 pm-12:37 am
1 stop6h 22m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$241
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Wed 11/11
5:10 pm-9:20 pm
Nonstop3h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$254
Quickest round-trip
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Tue 1/5
5:00 pm-9:06 pm
Nonstop3h 06m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$254
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Sun 12/13
5:05 pm-9:15 pm
Nonstop3h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$267
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Sun 11/8
7:15 am-11:24 am
Nonstop3h 09m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$267
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Sat 12/12
9:45 am-9:30 pm
2 stops10h 45m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$278
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Wed 12/30
7:25 am-11:31 am
Nonstop3h 06m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$286
AustinWashington, D.C.
AUS Austin Bergstrom - IAD Washington, D.C. Dulles Intl
AUSIAD
Austin Bergstrom
Fri 11/13
7:15 am-11:24 am
Nonstop3h 09m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$286
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Austin to Dulles Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Dulles Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Austin-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Austin to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Austin with our price prediction graph.
AUS-IAD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Austin to Washington, D.C. Dulles Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Austin to Washington, D.C. Dulles Intl Airport?
Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Austin to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Austin to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Austin to Washington, D.C. Dulles Intl Airport (average of $430). Flying from Austin to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $761). 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.
What is the cheapest time of day to fly from AUS to IAD?
Find hourly flight availability from Austin to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 19, 2026.
A simple way to save on the total cost of your ticket is to fly from Austin to Washington, D.C. Dulles Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at noon.
How often are flights from Austin to Washington, D.C. delayed?
About 8% of weekly flights between Austin and Washington, D.C. have experienced delays in the past year, with the average delay time being 150 minutes.
What is the most punctual flight time for Austin to Washington, D.C. flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Austin to Washington, D.C. flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 6% of flights being delayed.
The best insider tips for Austin to Washington, D.C. Dulles Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Austin to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated October 19, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAllegiant Air from Austin to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Related info for your journey
Find useful and relevant information for your journey from Austin to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsAlexandria
Chantilly
Arlington
Woodbridge
Owings Mills
Lanham
Sterling
Tysons
Herndon
Reston
Hyattsville
Rockville
Springfield
Fredericksburg
Falls Church
Oxon Hill
Laurel
Towson
Clinton
Hunt Valley
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Dulles Intl flight routes
Flights by cabin class
Other flight options
Other flights from Austin
Popular flights
Alternative routes for Austin to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Dulles Intl
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Search flights from Austin to Dulles Intl by cabin class
Find flights from Austin to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Dulles Intl flights
Browse other Austin and Dulles Intl flight options. Last updated on October 19, 2026.
Other flights from Austin
Browse through other flights departing from Austin. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Austin to Dulles Intl
Discover the top 5 airlines that operate flights from Austin to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$121 | Average$253 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$135 | Average$278 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$244 | Average$553 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$311 | Average$504 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$374 | Average$569 | FlexibilityNo cancel fee | On-time69% |