Travel with Axel,
get the best price.

Route overview: Philadelphia to San Francisco (SFO) flight deals

Philadelphia → San Francisco

Dec 6, 2026 · return Dec 13, 2026

PHL → SFO1 adulteconomyRound trip

10 flight options · 4 airlines

Nonstop flights

Sun, Dec 6 – Sun, Dec 13

American Airlines
6:37 pmPHL
6h 22m
Nonstop
9:59 pmSFO
American Airlines
6:14 amSFO
5h 16m
Nonstop
2:30 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Sun, Dec 13

United Airlines
4:38 pmPHL
6h 22m
Nonstop
8:00 pmSFO
United Airlines
11:00 pmSFO
5h 19m
Nonstop
7:19 am+1PHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Sun, Dec 13

American Airlines
8:10 amPHL
6h 39m
Nonstop
11:49 amSFO
American Airlines
6:14 amSFO
5h 16m
Nonstop
2:30 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Sun, Dec 13

United Airlines
9:10 amPHL
6h 22m
Nonstop
12:32 pmSFO
United Airlines
11:00 pmSFO
5h 19m
Nonstop
7:19 am+1PHL

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 6 – Sun, Dec 13

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

Sun, Dec 6 – Sun, Dec 13

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

Sun, Dec 6 – Sun, Dec 13

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

Sun, Dec 6 – Sun, Dec 13

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

Sun, Dec 6 – Sun, Dec 13

United Airlines
3:35 pmPHL
8h 35m
DEN · 1h 23m
9:10 pmSFO
United Airlines
11:00 pmSFO
5h 19m
Nonstop
7:19 am+1PHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Sun, Dec 13

United Airlines
6:00 amPHL
8h 22m
IAD · 1h 7m
11:22 amSFO
United Airlines
11:00 pmSFO
5h 19m
Nonstop
7:19 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

Explore this route

All dates for this routeDec 5, 2026 → Dec 12, 2026Dec 7, 2026 → Dec 14, 2026
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Philadelphia to San Francisco (SFO) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-06 → 2026-12-13American AirlinesAA2596 / AA2553$419.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13United AirlinesUA225 / UA1943$439.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13Southwest AirlinesWN1181 + WN4836 / WN4578 + WN1747$369.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13Delta Air LinesDL2270 + DL823 / DL772 + DL1391$399.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13American AirlinesAA3035 / AA2553$419.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13United AirlinesUA2225 / UA1943$439.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13Southwest AirlinesWN1270 + WN2844 / WN4578 + WN1747$369.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13Delta Air LinesDL2791 + DL2078 / DL772 + DL1391$399.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13United AirlinesUA2377 + UA1389 / UA1943$409.002026-10-29T01:56:01Z
2026-12-06 → 2026-12-13United AirlinesUA4427 + UA1147 / UA1943$409.002026-10-29T01:56:01Z

2026-12-06 → 2026-12-13 · $419.00

  • American Airlines AA2596: PHL 2026-12-06 18:37:00 → SFO 2026-12-06 21:59:00; nonstop; 382 minutes. Local airport times.
  • American Airlines AA2553: SFO 2026-12-13 06:14:00 → PHL 2026-12-13 14:30:00; nonstop; 316 minutes. Local airport times.

2026-12-06 → 2026-12-13 · $439.00

  • United Airlines UA225: PHL 2026-12-06 16:38:00 → SFO 2026-12-06 20:00:00; nonstop; 382 minutes. Local airport times.
  • United Airlines UA1943: SFO 2026-12-13 23:00:00 → PHL 2026-12-14 07:19:00; nonstop; 319 minutes. Local airport times.

2026-12-06 → 2026-12-13 · $369.00

  • Southwest Airlines WN1181 / WN4836: PHL 2026-12-06 19:10:00 → SFO 2026-12-07 00:25:00; 1 stop(s) via MDW; 495 minutes. Local airport times.
    • WN1181: PHL 2026-12-06 19:10:00 → MDW 2026-12-06 20:30:00; layover at MDW: 60 minutes.
    • WN4836: MDW 2026-12-06 21:30:00 → SFO 2026-12-07 00:25:00.
  • Southwest Airlines WN4578 / WN1747: SFO 2026-12-13 06:10:00 → PHL 2026-12-13 16:15:00; 1 stop(s) via DEN; 425 minutes. Local airport times.
    • WN4578: SFO 2026-12-13 06:10:00 → DEN 2026-12-13 09:45:00; layover at DEN: 65 minutes.
    • WN1747: DEN 2026-12-13 10:50:00 → PHL 2026-12-13 16:15:00.

2026-12-06 → 2026-12-13 · $399.00

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

2026-12-06 → 2026-12-13 · $419.00

  • American Airlines AA3035: PHL 2026-12-06 08:10:00 → SFO 2026-12-06 11:49:00; nonstop; 399 minutes. Local airport times.
  • American Airlines AA2553: SFO 2026-12-13 06:14:00 → PHL 2026-12-13 14:30:00; nonstop; 316 minutes. Local airport times.

2026-12-06 → 2026-12-13 · $439.00

  • United Airlines UA2225: PHL 2026-12-06 09:10:00 → SFO 2026-12-06 12:32:00; nonstop; 382 minutes. Local airport times.
  • United Airlines UA1943: SFO 2026-12-13 23:00:00 → PHL 2026-12-14 07:19:00; nonstop; 319 minutes. Local airport times.

2026-12-06 → 2026-12-13 · $369.00

  • Southwest Airlines WN1270 / WN2844: PHL 2026-12-06 17:15:00 → SFO 2026-12-06 22:55:00; 1 stop(s) via DEN; 520 minutes. Local airport times.
    • WN1270: PHL 2026-12-06 17:15:00 → DEN 2026-12-06 19:25:00; layover at DEN: 95 minutes.
    • WN2844: DEN 2026-12-06 21:00:00 → SFO 2026-12-06 22:55:00.
  • Southwest Airlines WN4578 / WN1747: SFO 2026-12-13 06:10:00 → PHL 2026-12-13 16:15:00; 1 stop(s) via DEN; 425 minutes. Local airport times.
    • WN4578: SFO 2026-12-13 06:10:00 → DEN 2026-12-13 09:45:00; layover at DEN: 65 minutes.
    • WN1747: DEN 2026-12-13 10:50:00 → PHL 2026-12-13 16:15:00.

2026-12-06 → 2026-12-13 · $399.00

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

2026-12-06 → 2026-12-13 · $409.00

  • United Airlines UA2377 / UA1389: PHL 2026-12-06 15:35:00 → SFO 2026-12-06 21:10:00; 1 stop(s) via DEN; 515 minutes. Local airport times.
    • UA2377: PHL 2026-12-06 15:35:00 → DEN 2026-12-06 17:57:00; layover at DEN: 83 minutes.
    • UA1389: DEN 2026-12-06 19:20:00 → SFO 2026-12-06 21:10:00.
  • United Airlines UA1943: SFO 2026-12-13 23:00:00 → PHL 2026-12-14 07:19:00; nonstop; 319 minutes. Local airport times.

2026-12-06 → 2026-12-13 · $409.00

  • United Airlines UA4427 / UA1147: PHL 2026-12-06 06:00:00 → SFO 2026-12-06 11:22:00; 1 stop(s) via IAD; 502 minutes. Local airport times.
    • UA4427: PHL 2026-12-06 06:00:00 → IAD 2026-12-06 07:08:00; layover at IAD: 67 minutes.
    • UA1147: IAD 2026-12-06 08:15:00 → SFO 2026-12-06 11:22:00.
  • United Airlines UA1943: SFO 2026-12-13 23:00:00 → PHL 2026-12-14 07:19:00; nonstop; 319 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Philadelphia (PHL) to San Francisco (SFO) · Dec 6, 2026 · return Dec 13, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Philadelphia to San Francisco (SFO) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.