Travel with Axel,
get the best price.

San Francisco → Philadelphia

Dec 26, 2026 · return Dec 28, 2026

SFO → PHL1 adulteconomyRound trip

10 flight options · 6 airlines

Nonstop flights

Sat, Dec 26 – Mon, Dec 28

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

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

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

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

American Airlines
11:11 pmSFO
5h 17m
Nonstop
7:28 am+1PHL
American Airlines
8:10 amPHL
6h 25m
Nonstop
11:35 amSFO

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

United Airlines
8:40 amSFO
5h 26m
Nonstop
5:06 pmPHL
United Airlines
9:20 amPHL
6h 22m
Nonstop
12:42 pmSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Dec 26 – Mon, Dec 28

Frontier Airlines
7:14 pmSFO
7h 47m
LAS · 1h 27m
6:01 am+1PHL
United Airlines
9:20 amPHL
6h 22m
Nonstop
12:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

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

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

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

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

Alaska Airlines
6:00 amSFO
7h 37m
LAX · 1h 1m
4:37 pmPHL
United Airlines
9:20 amPHL
6h 22m
Nonstop
12:42 pmSFO

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

Southwest Airlines
11:15 amSFO
7h 15m
STL · 1h 10m
9:30 pmPHL
Southwest Airlines
7:10 pmPHL
8h 15m
MDW · 1h
12:25 am+1SFO

Round-trip total · 1 adult · Taxes included

Sat, Dec 26 – Mon, Dec 28

United Airlines
8:42 amSFO
5h 26m
Nonstop
5:08 pmPHL
United Airlines
6:00 amPHL
8h 22m
IAD · 1h 7m
11:22 amSFO

Round-trip total · 1 adult · Taxes included

Make this trip yours

SFO ⇄ PHL

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 24, 2026 → Nov 29, 2026Dec 22, 2026 → Dec 27, 2026Dec 30, 2026 → Jan 2, 2027Jan 15, 2027 → Jan 18, 2027Oct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Jan 22, 2027 → Jan 25, 2027Oct 30, 2026 · One way
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)
2026-12-26 → 2026-12-28American AirlinesAA1732 / AA2407$518.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28United AirlinesUA2854 / UA433$544.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28Frontier Airlines / United AirlinesF94402 + F91602 / UA433$416.462026-10-29T01:18:59Z
2026-12-26 → 2026-12-28Southwest AirlinesWN4578 + WN1747 / WN1181 + WN4836$479.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28Delta Air LinesDL772 + DL1391 / DL2791 + DL2078$492.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28Alaska Airlines / United AirlinesAS2486 + AA2235 / UA433$504.212026-10-29T01:18:59Z
2026-12-26 → 2026-12-28American AirlinesAA1826 / AA2407$518.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28United AirlinesUA2824 / UA433$544.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28Southwest AirlinesWN2989 + WN4923 / WN1181 + WN4836$479.712026-10-29T01:18:59Z
2026-12-26 → 2026-12-28United AirlinesUA2824 / UA4427 + UA1147$507.212026-10-29T01:18:59Z

2026-12-26 → 2026-12-28 · $518.71

  • American Airlines AA1732: SFO 2026-12-26 09:27:00 → PHL 2026-12-26 17:43:00; nonstop; 316 minutes. Local airport times.
  • American Airlines AA2407: PHL 2026-12-28 08:10:00 → SFO 2026-12-28 11:35:00; nonstop; 385 minutes. Local airport times.

2026-12-26 → 2026-12-28 · $544.71

  • United Airlines UA2854: SFO 2026-12-26 23:20:00 → PHL 2026-12-27 07:45:00; nonstop; 325 minutes. Local airport times.
  • United Airlines UA433: PHL 2026-12-28 09:20:00 → SFO 2026-12-28 12:42:00; nonstop; 382 minutes. Local airport times.

2026-12-26 → 2026-12-28 · $416.46

  • Frontier Airlines F94402 / F91602: SFO 2026-12-26 19:14:00 → PHL 2026-12-27 06:01:00; 1 stop(s) via LAS; 467 minutes. Local airport times.
    • F94402: SFO 2026-12-26 19:14:00 → LAS 2026-12-26 20:52:00; layover at LAS: 87 minutes.
    • F91602: LAS 2026-12-26 22:19:00 → PHL 2026-12-27 06:01:00.
  • United Airlines UA433: PHL 2026-12-28 09:20:00 → SFO 2026-12-28 12:42:00; nonstop; 382 minutes. Local airport times.

2026-12-26 → 2026-12-28 · $479.71

  • Southwest Airlines WN4578 / WN1747: SFO 2026-12-26 06:10:00 → PHL 2026-12-26 16:15:00; 1 stop(s) via DEN; 425 minutes. Local airport times.
    • WN4578: SFO 2026-12-26 06:10:00 → DEN 2026-12-26 09:45:00; layover at DEN: 65 minutes.
    • WN1747: DEN 2026-12-26 10:50:00 → PHL 2026-12-26 16:15:00.
  • Southwest Airlines WN1181 / WN4836: PHL 2026-12-28 19:10:00 → SFO 2026-12-29 00:25:00; 1 stop(s) via MDW; 495 minutes. Local airport times.
    • WN1181: PHL 2026-12-28 19:10:00 → MDW 2026-12-28 20:30:00; layover at MDW: 60 minutes.
    • WN4836: MDW 2026-12-28 21:30:00 → SFO 2026-12-29 00:25:00.

2026-12-26 → 2026-12-28 · $492.71

  • Delta Air Lines DL772 / DL1391: SFO 2026-12-26 06:00:00 → PHL 2026-12-26 16:35:00; 1 stop(s) via DTW; 455 minutes. Local airport times.
    • DL772: SFO 2026-12-26 06:00:00 → DTW 2026-12-26 13:28:00; layover at DTW: 91 minutes.
    • DL1391: DTW 2026-12-26 14:59:00 → PHL 2026-12-26 16:35:00.
  • Delta Air Lines DL2791 / DL2078: PHL 2026-12-28 05:34:00 → SFO 2026-12-28 11:07:00; 1 stop(s) via MSP; 513 minutes. Local airport times.
    • DL2791: PHL 2026-12-28 05:34:00 → MSP 2026-12-28 07:35:00; layover at MSP: 70 minutes.
    • DL2078: MSP 2026-12-28 08:45:00 → SFO 2026-12-28 11:07:00.

2026-12-26 → 2026-12-28 · $504.21

  • Alaska Airlines AS2486 / AA2235: SFO 2026-12-26 06:00:00 → PHL 2026-12-26 16:37:00; 1 stop(s) via LAX; 457 minutes. Local airport times.
    • AS2486: SFO 2026-12-26 06:00:00 → LAX 2026-12-26 07:29:00; layover at LAX: 61 minutes.
    • AA2235: LAX 2026-12-26 08:30:00 → PHL 2026-12-26 16:37:00.
  • United Airlines UA433: PHL 2026-12-28 09:20:00 → SFO 2026-12-28 12:42:00; nonstop; 382 minutes. Local airport times.

2026-12-26 → 2026-12-28 · $518.71

  • American Airlines AA1826: SFO 2026-12-26 23:11:00 → PHL 2026-12-27 07:28:00; nonstop; 317 minutes. Local airport times.
  • American Airlines AA2407: PHL 2026-12-28 08:10:00 → SFO 2026-12-28 11:35:00; nonstop; 385 minutes. Local airport times.

2026-12-26 → 2026-12-28 · $544.71

  • United Airlines UA2824: SFO 2026-12-26 08:40:00 → PHL 2026-12-26 17:06:00; nonstop; 326 minutes. Local airport times.
  • United Airlines UA433: PHL 2026-12-28 09:20:00 → SFO 2026-12-28 12:42:00; nonstop; 382 minutes. Local airport times.

2026-12-26 → 2026-12-28 · $479.71

  • Southwest Airlines WN2989 / WN4923: SFO 2026-12-26 11:15:00 → PHL 2026-12-26 21:30:00; 1 stop(s) via STL; 435 minutes. Local airport times.
    • WN2989: SFO 2026-12-26 11:15:00 → STL 2026-12-26 17:10:00; layover at STL: 70 minutes.
    • WN4923: STL 2026-12-26 18:20:00 → PHL 2026-12-26 21:30:00.
  • Southwest Airlines WN1181 / WN4836: PHL 2026-12-28 19:10:00 → SFO 2026-12-29 00:25:00; 1 stop(s) via MDW; 495 minutes. Local airport times.
    • WN1181: PHL 2026-12-28 19:10:00 → MDW 2026-12-28 20:30:00; layover at MDW: 60 minutes.
    • WN4836: MDW 2026-12-28 21:30:00 → SFO 2026-12-29 00:25:00.

2026-12-26 → 2026-12-28 · $507.21

  • United Airlines UA2824: SFO 2026-12-26 08:42:00 → PHL 2026-12-26 17:08:00; nonstop; 326 minutes. Local airport times.
  • United Airlines UA4427 / UA1147: PHL 2026-12-28 06:00:00 → SFO 2026-12-28 11:22:00; 1 stop(s) via IAD; 502 minutes. Local airport times.
    • UA4427: PHL 2026-12-28 06:00:00 → IAD 2026-12-28 07:08:00; layover at IAD: 67 minutes.
    • UA1147: IAD 2026-12-28 08:15:00 → SFO 2026-12-28 11:22:00.

More dates for this route