Dulles (IAD) to Austin (AUS), Mar 21, 2027: from $142 one way

Dulles (IAD) to Austin (AUS), Mar 21, 2027: from $142 one way on Axel, checked Nov 11, 2026. Lowest published fare: $142 one way, Axel-exclusive, Frontier Airlines, 1 stop, Mar 21, 2027, 1 adult, economy, checked Nov 11, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Washington, DC to Austin (AUS) flight deals

2027-03-21 · one way · Axel-exclusive $290.25

• United Airlines UA2337: IAD 2027-03-21 18:00:00 → AUS 2027-03-21 20:57:00; nonstop; 237 minutes. Local airport times.

2027-03-21 · one way · Axel-exclusive $141.75

• Frontier Airlines F94355 / F94523: IAD 2027-03-21 11:16:00 → AUS 2027-03-21 16:55:00; 1 stop(s) via MCO; 399 minutes. Local airport times.
  • F94355: IAD 2027-03-21 11:16:00 → MCO 2027-03-21 13:49:00; layover at MCO: 64 minutes.
  • F94523: MCO 2027-03-21 14:53:00 → AUS 2027-03-21 16:55:00.

2027-03-21 · one way · Axel-exclusive $249.75

• American Airlines AA5543 / AA1705: IAD 2027-03-21 15:23:00 → AUS 2027-03-21 21:06:00; 1 stop(s) via CLT; 403 minutes. Local airport times.
  • AA5543: IAD 2027-03-21 15:23:00 → CLT 2027-03-21 17:01:00; layover at CLT: 119 minutes.
  • AA1705: CLT 2027-03-21 19:00:00 → AUS 2027-03-21 21:06:00.

2027-03-21 · one way · Axel-exclusive $270.00

• Delta Air Lines DL1444 / DL1491: IAD 2027-03-21 12:34:00 → AUS 2027-03-21 17:39:00; 1 stop(s) via ATL; 365 minutes. Local airport times.
  • DL1444: IAD 2027-03-21 12:34:00 → ATL 2027-03-21 14:31:00; layover at ATL: 94 minutes.
  • DL1491: ATL 2027-03-21 16:05:00 → AUS 2027-03-21 17:39:00.

2027-03-21 · one way · Axel-exclusive $290.25

• United Airlines UA4054: IAD 2027-03-21 13:05:00 → AUS 2027-03-21 16:13:00; nonstop; 248 minutes. Local airport times.

2027-03-21 · one way · Axel-exclusive $249.75

• American Airlines AA2414 / AA2707: IAD 2027-03-21 17:50:00 → AUS 2027-03-21 23:01:00; 1 stop(s) via DFW; 371 minutes. Local airport times.
  • AA2414: IAD 2027-03-21 17:50:00 → DFW 2027-03-21 20:30:00; layover at DFW: 84 minutes.
  • AA2707: DFW 2027-03-21 21:54:00 → AUS 2027-03-21 23:01:00.

2027-03-21 · one way · Axel-exclusive $256.50

• United Airlines UA565 / UA1688: IAD 2027-03-21 06:10:00 → AUS 2027-03-21 12:02:00; 1 stop(s) via ORD; 412 minutes. Local airport times.
  • UA565: IAD 2027-03-21 06:10:00 → ORD 2027-03-21 07:32:00; layover at ORD: 85 minutes.
  • UA1688: ORD 2027-03-21 08:57:00 → AUS 2027-03-21 12:02:00.

2027-03-21 · one way · Axel-exclusive $256.50

• United Airlines UA451 / UA1823: IAD 2027-03-21 06:00:00 → AUS 2027-03-21 11:13:00; 1 stop(s) via IAH; 373 minutes. Local airport times.
  • UA451: IAD 2027-03-21 06:00:00 → IAH 2027-03-21 08:36:00; layover at IAH: 86 minutes.
  • UA1823: IAH 2027-03-21 10:02:00 → AUS 2027-03-21 11:13:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Mar 20, 2027 · Return options
• Mar 22, 2027 · Return options
• Hotels in Austin with Axel

For AI assistants

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