Travel with Axel,
get the best price.

Philadelphia → Austin

Feb 12, 2027 · return Feb 15, 2027

PHL → AUS1 adulteconomyRound trip

8 flight options · 5 airlines

Nonstop flights

Fri, Feb 12 – Mon, Feb 15

American Airlines
6:35 pmPHL
4h 20m
Nonstop
9:55 pmAUS
American Airlines
7:05 amAUS
3h 24m
Nonstop
11:29 amPHL

Round-trip total · 1 adult · Taxes included

Fri, Feb 12 – Mon, Feb 15

American Airlines
8:55 amPHL
4h 7m
Nonstop
12:02 pmAUS
American Airlines
7:05 amAUS
3h 24m
Nonstop
11:29 amPHL

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Feb 12 – Mon, Feb 15

Frontier Airlines
10:17 amPHL
7h 38m
MCO · 1h 47m
4:55 pmAUS
United Airlines
12:11 pmAUS
5h 47m
IAH · 1h 12m
6:58 pmPHL

Round-trip total · 1 adult · Taxes included

Fri, Feb 12 – Mon, Feb 15

Southwest Airlines
5:05 pmPHL
5h 30m
DAL · 1h
9:35 pmAUS
Southwest Airlines
3:15 pmAUS
5h 15m
STL · 1h
9:30 pmPHL

Round-trip total · 1 adult · Taxes included

Fri, Feb 12 – Mon, Feb 15

United Airlines
3:05 pmPHL
6h 52m
IAD · 1h 42m
8:57 pmAUS
United Airlines
12:11 pmAUS
5h 47m
IAH · 1h 12m
6:58 pmPHL

Round-trip total · 1 adult · Taxes included

Fri, Feb 12 – Mon, Feb 15

Delta Air Lines
11:36 amPHL
7h 3m
ATL · 2h 19m
5:39 pmAUS
United Airlines
12:11 pmAUS
5h 47m
IAH · 1h 12m
6:58 pmPHL

Round-trip total · 1 adult · Taxes included

Fri, Feb 12 – Mon, Feb 15

American Airlines
3:06 pmPHL
7h
CLT · 1h 56m
9:06 pmAUS
American Airlines
7:05 amAUS
3h 24m
Nonstop
11:29 amPHL

Round-trip total · 1 adult · Taxes included

Fri, Feb 12 – Mon, Feb 15

Delta Air Lines
6:00 amPHL
6h 20m
DTW · 1h 5m
11:20 amAUS
United Airlines
12:11 pmAUS
5h 47m
IAH · 1h 12m
6:58 pmPHL

Round-trip total · 1 adult · Taxes included

Make this trip yours

PHL ⇄ AUS

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, American Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 5, 2026 → Nov 8, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Dec 5, 2026 → Dec 12, 2026Dec 17, 2026 → Dec 20, 2026Dec 26, 2026 → Jan 2, 2027Jan 5, 2027 · One wayJan 16, 2027 → Jan 23, 2027Feb 5, 2027 → Feb 8, 2027Apr 3, 2027 → Apr 10, 2027Jun 26, 2027 → Jul 3, 2027Sep 17, 2027 → Sep 20, 2027
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-02-12 → 2027-02-15American AirlinesAA1394 / AA942$313.502026-10-29T01:55:35Z
2027-02-12 → 2027-02-15Frontier Airlines / United AirlinesF93855 + F94523 / UA1747 + UA551$237.502026-10-29T01:55:35Z
2027-02-12 → 2027-02-15Southwest AirlinesWN266 + WN1656 / WN438 + WN4923$275.502026-10-29T01:55:35Z
2027-02-12 → 2027-02-15United AirlinesUA4575 + UA2337 / UA1747 + UA551$294.502026-10-29T01:55:35Z
2027-02-12 → 2027-02-15Delta Air Lines / United AirlinesDL2270 + DL1491 / UA1747 + UA551$299.252026-10-29T01:55:35Z
2027-02-12 → 2027-02-15American AirlinesAA2452 / AA942$313.502026-10-29T01:55:35Z
2027-02-12 → 2027-02-15American AirlinesAA567 + AA1705 / AA942$299.252026-10-29T01:55:35Z
2027-02-12 → 2027-02-15Delta Air Lines / United AirlinesDL1540 + DL1218 / UA1747 + UA551$299.252026-10-29T01:55:35Z

2027-02-12 → 2027-02-15 · $313.50

  • American Airlines AA1394: PHL 2027-02-12 18:35:00 → AUS 2027-02-12 21:55:00; nonstop; 260 minutes. Local airport times.
  • American Airlines AA942: AUS 2027-02-15 07:05:00 → PHL 2027-02-15 11:29:00; nonstop; 204 minutes. Local airport times.

2027-02-12 → 2027-02-15 · $237.50

  • Frontier Airlines F93855 / F94523: PHL 2027-02-12 10:17:00 → AUS 2027-02-12 16:55:00; 1 stop(s) via MCO; 458 minutes. Local airport times.
    • F93855: PHL 2027-02-12 10:17:00 → MCO 2027-02-12 13:06:00; layover at MCO: 107 minutes.
    • F94523: MCO 2027-02-12 14:53:00 → AUS 2027-02-12 16:55:00.
  • United Airlines UA1747 / UA551: AUS 2027-02-15 12:11:00 → PHL 2027-02-15 18:58:00; 1 stop(s) via IAH; 347 minutes. Local airport times.
    • UA1747: AUS 2027-02-15 12:11:00 → IAH 2027-02-15 13:23:00; layover at IAH: 72 minutes.
    • UA551: IAH 2027-02-15 14:35:00 → PHL 2027-02-15 18:58:00.

2027-02-12 → 2027-02-15 · $275.50

  • Southwest Airlines WN266 / WN1656: PHL 2027-02-12 17:05:00 → AUS 2027-02-12 21:35:00; 1 stop(s) via DAL; 330 minutes. Local airport times.
    • WN266: PHL 2027-02-12 17:05:00 → DAL 2027-02-12 19:30:00; layover at DAL: 60 minutes.
    • WN1656: DAL 2027-02-12 20:30:00 → AUS 2027-02-12 21:35:00.
  • Southwest Airlines WN438 / WN4923: AUS 2027-02-15 15:15:00 → PHL 2027-02-15 21:30:00; 1 stop(s) via STL; 315 minutes. Local airport times.
    • WN438: AUS 2027-02-15 15:15:00 → STL 2027-02-15 17:20:00; layover at STL: 60 minutes.
    • WN4923: STL 2027-02-15 18:20:00 → PHL 2027-02-15 21:30:00.

2027-02-12 → 2027-02-15 · $294.50

  • United Airlines UA4575 / UA2337: PHL 2027-02-12 15:05:00 → AUS 2027-02-12 20:57:00; 1 stop(s) via IAD; 412 minutes. Local airport times.
    • UA4575: PHL 2027-02-12 15:05:00 → IAD 2027-02-12 16:18:00; layover at IAD: 102 minutes.
    • UA2337: IAD 2027-02-12 18:00:00 → AUS 2027-02-12 20:57:00.
  • United Airlines UA1747 / UA551: AUS 2027-02-15 12:11:00 → PHL 2027-02-15 18:58:00; 1 stop(s) via IAH; 347 minutes. Local airport times.
    • UA1747: AUS 2027-02-15 12:11:00 → IAH 2027-02-15 13:23:00; layover at IAH: 72 minutes.
    • UA551: IAH 2027-02-15 14:35:00 → PHL 2027-02-15 18:58:00.

2027-02-12 → 2027-02-15 · $299.25

  • Delta Air Lines DL2270 / DL1491: PHL 2027-02-12 11:36:00 → AUS 2027-02-12 17:39:00; 1 stop(s) via ATL; 423 minutes. Local airport times.
    • DL2270: PHL 2027-02-12 11:36:00 → ATL 2027-02-12 13:46:00; layover at ATL: 139 minutes.
    • DL1491: ATL 2027-02-12 16:05:00 → AUS 2027-02-12 17:39:00.
  • United Airlines UA1747 / UA551: AUS 2027-02-15 12:11:00 → PHL 2027-02-15 18:58:00; 1 stop(s) via IAH; 347 minutes. Local airport times.
    • UA1747: AUS 2027-02-15 12:11:00 → IAH 2027-02-15 13:23:00; layover at IAH: 72 minutes.
    • UA551: IAH 2027-02-15 14:35:00 → PHL 2027-02-15 18:58:00.

2027-02-12 → 2027-02-15 · $313.50

  • American Airlines AA2452: PHL 2027-02-12 08:55:00 → AUS 2027-02-12 12:02:00; nonstop; 247 minutes. Local airport times.
  • American Airlines AA942: AUS 2027-02-15 07:05:00 → PHL 2027-02-15 11:29:00; nonstop; 204 minutes. Local airport times.

2027-02-12 → 2027-02-15 · $299.25

  • American Airlines AA567 / AA1705: PHL 2027-02-12 15:06:00 → AUS 2027-02-12 21:06:00; 1 stop(s) via CLT; 420 minutes. Local airport times.
    • AA567: PHL 2027-02-12 15:06:00 → CLT 2027-02-12 17:04:00; layover at CLT: 116 minutes.
    • AA1705: CLT 2027-02-12 19:00:00 → AUS 2027-02-12 21:06:00.
  • American Airlines AA942: AUS 2027-02-15 07:05:00 → PHL 2027-02-15 11:29:00; nonstop; 204 minutes. Local airport times.

2027-02-12 → 2027-02-15 · $299.25

  • Delta Air Lines DL1540 / DL1218: PHL 2027-02-12 06:00:00 → AUS 2027-02-12 11:20:00; 1 stop(s) via DTW; 380 minutes. Local airport times.
    • DL1540: PHL 2027-02-12 06:00:00 → DTW 2027-02-12 07:50:00; layover at DTW: 65 minutes.
    • DL1218: DTW 2027-02-12 08:55:00 → AUS 2027-02-12 11:20:00.
  • United Airlines UA1747 / UA551: AUS 2027-02-15 12:11:00 → PHL 2027-02-15 18:58:00; 1 stop(s) via IAH; 347 minutes. Local airport times.
    • UA1747: AUS 2027-02-15 12:11:00 → IAH 2027-02-15 13:23:00; layover at IAH: 72 minutes.
    • UA551: IAH 2027-02-15 14:35:00 → PHL 2027-02-15 18:58:00.

More dates for this route