Travel with Axel,
get the best price.

Philadelphia → San Francisco

Dec 14, 2026 · return Dec 19, 2026

PHL → SFO1 adulteconomyRound trip

10 flight options · 4 airlines

Nonstop flights

Mon, Dec 14 – Sat, Dec 19

American Airlines
6:35 pmPHL
6h 32m
Nonstop
10:07 pmSFO
American Airlines
9:27 amSFO
5h 16m
Nonstop
5:43 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

United Airlines
9:20 amPHL
6h 22m
Nonstop
12:42 pmSFO
United Airlines
11:20 pmSFO
5h 25m
Nonstop
7:45 am+1PHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

American Airlines
8:10 amPHL
6h 25m
Nonstop
11:35 amSFO
American Airlines
9:27 amSFO
5h 16m
Nonstop
5:43 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

United Airlines
4:38 pmPHL
6h 22m
Nonstop
8:00 pmSFO
United Airlines
11:20 pmSFO
5h 25m
Nonstop
7:45 am+1PHL

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 14 – Sat, Dec 19

Southwest Airlines
5:15 pmPHL
8h 40m
DEN · 1h 35m
10:55 pmSFO
Southwest Airlines
6:10 amSFO
7h 5m
DEN · 1h 5m
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Delta Air Lines
11:36 amPHL
8h 35m
ATL · 1h 9m
5:11 pmSFO
Delta Air Lines
6:00 amSFO
7h 35m
DTW · 1h 31m
4:35 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Southwest Airlines
7:10 pmPHL
8h 15m
MDW · 1h
12:25 am+1SFO
Southwest Airlines
6:10 amSFO
7h 5m
DEN · 1h 5m
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

Delta Air Lines
5:34 amPHL
8h 33m
MSP · 1h 10m
11:07 amSFO
Delta Air Lines
6:00 amSFO
7h 35m
DTW · 1h 31m
4:35 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

United Airlines
6:00 amPHL
8h 22m
IAD · 1h 7m
11:22 amSFO
United Airlines
11:20 pmSFO
5h 25m
Nonstop
7:45 am+1PHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 14 – Sat, Dec 19

United Airlines
3:35 pmPHL
8h 35m
DEN · 1h 23m
9:10 pmSFO
United Airlines
11:20 pmSFO
5h 25m
Nonstop
7:45 am+1PHL

Round-trip total · 1 adult · Taxes included

Make this trip yours

PHL ⇄ SFO

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)
2026-12-14 → 2026-12-19American AirlinesAA1826 / AA1732$502.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19United AirlinesUA433 / UA2854$526.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19Southwest AirlinesWN1270 + WN2844 / WN4578 + WN1747$442.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19Delta Air LinesDL2270 + DL823 / DL772 + DL1391$478.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19American AirlinesAA2407 / AA1732$502.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19United AirlinesUA225 / UA2854$526.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19Southwest AirlinesWN1181 + WN4836 / WN4578 + WN1747$442.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19Delta Air LinesDL2791 + DL2078 / DL772 + DL1391$478.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19United AirlinesUA4427 + UA1147 / UA2854$496.802026-10-29T01:56:01Z
2026-12-14 → 2026-12-19United AirlinesUA2377 + UA1389 / UA2854$496.802026-10-29T01:56:01Z

2026-12-14 → 2026-12-19 · $502.80

  • American Airlines AA1826: PHL 2026-12-14 18:35:00 → SFO 2026-12-14 22:07:00; nonstop; 392 minutes. Local airport times.
  • American Airlines AA1732: SFO 2026-12-19 09:27:00 → PHL 2026-12-19 17:43:00; nonstop; 316 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $526.80

  • United Airlines UA433: PHL 2026-12-14 09:20:00 → SFO 2026-12-14 12:42:00; nonstop; 382 minutes. Local airport times.
  • United Airlines UA2854: SFO 2026-12-19 23:20:00 → PHL 2026-12-20 07:45:00; nonstop; 325 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $442.80

  • Southwest Airlines WN1270 / WN2844: PHL 2026-12-14 17:15:00 → SFO 2026-12-14 22:55:00; 1 stop(s) via DEN; 520 minutes. Local airport times.
    • WN1270: PHL 2026-12-14 17:15:00 → DEN 2026-12-14 19:25:00; layover at DEN: 95 minutes.
    • WN2844: DEN 2026-12-14 21:00:00 → SFO 2026-12-14 22:55:00.
  • Southwest Airlines WN4578 / WN1747: SFO 2026-12-19 06:10:00 → PHL 2026-12-19 16:15:00; 1 stop(s) via DEN; 425 minutes. Local airport times.
    • WN4578: SFO 2026-12-19 06:10:00 → DEN 2026-12-19 09:45:00; layover at DEN: 65 minutes.
    • WN1747: DEN 2026-12-19 10:50:00 → PHL 2026-12-19 16:15:00.

2026-12-14 → 2026-12-19 · $478.80

  • Delta Air Lines DL2270 / DL823: PHL 2026-12-14 11:36:00 → SFO 2026-12-14 17:11:00; 1 stop(s) via ATL; 515 minutes. Local airport times.
    • DL2270: PHL 2026-12-14 11:36:00 → ATL 2026-12-14 13:46:00; layover at ATL: 69 minutes.
    • DL823: ATL 2026-12-14 14:55:00 → SFO 2026-12-14 17:11:00.
  • Delta Air Lines DL772 / DL1391: SFO 2026-12-19 06:00:00 → PHL 2026-12-19 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
    • DL772: SFO 2026-12-19 06:00:00 → DTW 2026-12-19 13:28:00; layover at DTW: 91 minutes.
    • DL1391: DTW 2026-12-19 14:59:00 → PHL 2026-12-19 16:35:00.

2026-12-14 → 2026-12-19 · $502.80

  • American Airlines AA2407: PHL 2026-12-14 08:10:00 → SFO 2026-12-14 11:35:00; nonstop; 385 minutes. Local airport times.
  • American Airlines AA1732: SFO 2026-12-19 09:27:00 → PHL 2026-12-19 17:43:00; nonstop; 316 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $526.80

  • United Airlines UA225: PHL 2026-12-14 16:38:00 → SFO 2026-12-14 20:00:00; nonstop; 382 minutes. Local airport times.
  • United Airlines UA2854: SFO 2026-12-19 23:20:00 → PHL 2026-12-20 07:45:00; nonstop; 325 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $442.80

  • Southwest Airlines WN1181 / WN4836: PHL 2026-12-14 19:10:00 → SFO 2026-12-15 00:25:00; 1 stop(s) via MDW; 495 minutes. Local airport times.
    • WN1181: PHL 2026-12-14 19:10:00 → MDW 2026-12-14 20:30:00; layover at MDW: 60 minutes.
    • WN4836: MDW 2026-12-14 21:30:00 → SFO 2026-12-15 00:25:00.
  • Southwest Airlines WN4578 / WN1747: SFO 2026-12-19 06:10:00 → PHL 2026-12-19 16:15:00; 1 stop(s) via DEN; 425 minutes. Local airport times.
    • WN4578: SFO 2026-12-19 06:10:00 → DEN 2026-12-19 09:45:00; layover at DEN: 65 minutes.
    • WN1747: DEN 2026-12-19 10:50:00 → PHL 2026-12-19 16:15:00.

2026-12-14 → 2026-12-19 · $478.80

  • Delta Air Lines DL2791 / DL2078: PHL 2026-12-14 05:34:00 → SFO 2026-12-14 11:07:00; 1 stop(s) via MSP; 513 minutes. Local airport times.
    • DL2791: PHL 2026-12-14 05:34:00 → MSP 2026-12-14 07:35:00; layover at MSP: 70 minutes.
    • DL2078: MSP 2026-12-14 08:45:00 → SFO 2026-12-14 11:07:00.
  • Delta Air Lines DL772 / DL1391: SFO 2026-12-19 06:00:00 → PHL 2026-12-19 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
    • DL772: SFO 2026-12-19 06:00:00 → DTW 2026-12-19 13:28:00; layover at DTW: 91 minutes.
    • DL1391: DTW 2026-12-19 14:59:00 → PHL 2026-12-19 16:35:00.

2026-12-14 → 2026-12-19 · $496.80

  • United Airlines UA4427 / UA1147: PHL 2026-12-14 06:00:00 → SFO 2026-12-14 11:22:00; 1 stop(s) via IAD; 502 minutes. Local airport times.
    • UA4427: PHL 2026-12-14 06:00:00 → IAD 2026-12-14 07:08:00; layover at IAD: 67 minutes.
    • UA1147: IAD 2026-12-14 08:15:00 → SFO 2026-12-14 11:22:00.
  • United Airlines UA2854: SFO 2026-12-19 23:20:00 → PHL 2026-12-20 07:45:00; nonstop; 325 minutes. Local airport times.

2026-12-14 → 2026-12-19 · $496.80

  • United Airlines UA2377 / UA1389: PHL 2026-12-14 15:35:00 → SFO 2026-12-14 21:10:00; 1 stop(s) via DEN; 515 minutes. Local airport times.
    • UA2377: PHL 2026-12-14 15:35:00 → DEN 2026-12-14 17:57:00; layover at DEN: 83 minutes.
    • UA1389: DEN 2026-12-14 19:20:00 → SFO 2026-12-14 21:10:00.
  • United Airlines UA2854: SFO 2026-12-19 23:20:00 → PHL 2026-12-20 07:45:00; nonstop; 325 minutes. Local airport times.

More dates for this route