San Francisco (SFO) to Portland (PWM), Aug 4–7, 2027: from $555 round trip

San Francisco (SFO) to Portland (PWM), Aug 4–7, 2027: from $555 round trip on Axel, checked Nov 11, 2026. Lowest published fare: $555 round trip, Axel-exclusive, Southwest Airlines / United Airlines, 1 stop, Aug 4–7, 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.

Hotels in Portland, Maine for these trips

Hotels: under a trip, hotels in Portland, Maine for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Portland, Maine for these nights (Aug 4–7, 2027 · 3 nights · 2 adults, 1 room): 3★ Home2 Suites by Hilton Portland Airport, $251 a night, $752 for 3 nights · 4★ DoubleTree by Hilton Hotel Portland, $213 a night, $638 for 3 nights

All hotels in Portland, Maine

Route overview: San Francisco Bay Area to Portland (PWM) flight deals

2027-08-04 → 2027-08-07 · Axel-exclusive $555.00

• Southwest Airlines WN3547 / WN553: SFO 2027-08-04 21:25:00 → PWM 2027-08-05 09:50:00; 1 stop(s) via BWI; 565 minutes. Local airport times.
  • WN3547: SFO 2027-08-04 21:25:00 → BWI 2027-08-05 05:30:00; layover at BWI: 165 minutes.
  • WN553: BWI 2027-08-05 08:15:00 → PWM 2027-08-05 09:50:00.
• United Airlines UA4473 / UA367: PWM 2027-08-07 19:08:00 → SFO 2027-08-08 01:30:00; 1 stop(s) via IAD; 562 minutes. Local airport times.
  • UA4473: PWM 2027-08-07 19:08:00 → IAD 2027-08-07 21:19:00; layover at IAD: 60 minutes.
  • UA367: IAD 2027-08-07 22:19:00 → SFO 2027-08-08 01:30:00.

2027-08-04 → 2027-08-07 · Axel-exclusive $560.00

• American Airlines AA3119 / AA4741: SFO 2027-08-04 23:46:00 → PWM 2027-08-05 11:35:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • AA3119: SFO 2027-08-04 23:46:00 → ORD 2027-08-05 05:59:00; layover at ORD: 128 minutes.
  • AA4741: ORD 2027-08-05 08:07:00 → PWM 2027-08-05 11:35:00.
• United Airlines UA4473 / UA367: PWM 2027-08-07 19:08:00 → SFO 2027-08-08 01:30:00; 1 stop(s) via IAD; 562 minutes. Local airport times.
  • UA4473: PWM 2027-08-07 19:08:00 → IAD 2027-08-07 21:19:00; layover at IAD: 60 minutes.
  • UA367: IAD 2027-08-07 22:19:00 → SFO 2027-08-08 01:30:00.

2027-08-04 → 2027-08-07 · Axel-exclusive $570.00

• United Airlines UA336 / UA3501: SFO 2027-08-04 10:50:00 → PWM 2027-08-04 23:59:00; 1 stop(s) via IAD; 609 minutes. Local airport times.
  • UA336: SFO 2027-08-04 10:50:00 → IAD 2027-08-04 19:05:00; layover at IAD: 185 minutes.
  • UA3501: IAD 2027-08-04 22:10:00 → PWM 2027-08-04 23:59:00.
• United Airlines UA4473 / UA367: PWM 2027-08-07 19:08:00 → SFO 2027-08-08 01:30:00; 1 stop(s) via IAD; 562 minutes. Local airport times.
  • UA4473: PWM 2027-08-07 19:08:00 → IAD 2027-08-07 21:19:00; layover at IAD: 60 minutes.
  • UA367: IAD 2027-08-07 22:19:00 → SFO 2027-08-08 01:30:00.

2027-08-04 → 2027-08-07 · Axel-exclusive $580.00

• Delta Air Lines DL690 / DL2479: SFO 2027-08-04 23:59:00 → PWM 2027-08-05 13:01:00; 1 stop(s) via ATL; 602 minutes. Local airport times.
  • DL690: SFO 2027-08-04 23:59:00 → ATL 2027-08-05 07:36:00; layover at ATL: 174 minutes.
  • DL2479: ATL 2027-08-05 10:30:00 → PWM 2027-08-05 13:01:00.
• Delta Air Lines DL4907 / DL1327: PWM 2027-08-07 16:53:00 → SFO 2027-08-07 23:20:00; 1 stop(s) via DTW; 567 minutes. Local airport times.
  • DL4907: PWM 2027-08-07 16:53:00 → DTW 2027-08-07 19:15:00; layover at DTW: 103 minutes.
  • DL1327: DTW 2027-08-07 20:58:00 → SFO 2027-08-07 23:20:00.

2027-08-04 → 2027-08-07 · Axel-exclusive $560.00

• American Airlines AA2852 / AA5918: SFO 2027-08-04 23:09:00 → PWM 2027-08-05 10:30:00; 1 stop(s) via PHL; 501 minutes. Local airport times.
  • AA2852: SFO 2027-08-04 23:09:00 → PHL 2027-08-05 07:24:00; layover at PHL: 87 minutes.
  • AA5918: PHL 2027-08-05 08:51:00 → PWM 2027-08-05 10:30:00.
• United Airlines UA4473 / UA367: PWM 2027-08-07 19:08:00 → SFO 2027-08-08 01:30:00; 1 stop(s) via IAD; 562 minutes. Local airport times.
  • UA4473: PWM 2027-08-07 19:08:00 → IAD 2027-08-07 21:19:00; layover at IAD: 60 minutes.
  • UA367: IAD 2027-08-07 22:19:00 → SFO 2027-08-08 01:30:00.

2027-08-04 → 2027-08-07 · Axel-exclusive $560.00

• American Airlines AA1426 / AA3095: SFO 2027-08-04 22:09:00 → PWM 2027-08-05 10:18:00; 1 stop(s) via CLT; 549 minutes. Local airport times.
  • AA1426: SFO 2027-08-04 22:09:00 → CLT 2027-08-05 06:05:00; layover at CLT: 123 minutes.
  • AA3095: CLT 2027-08-05 08:08:00 → PWM 2027-08-05 10:18:00.
• United Airlines UA4473 / UA367: PWM 2027-08-07 19:08:00 → SFO 2027-08-08 01:30:00; 1 stop(s) via IAD; 562 minutes. Local airport times.
  • UA4473: PWM 2027-08-07 19:08:00 → IAD 2027-08-07 21:19:00; layover at IAD: 60 minutes.
  • UA367: IAD 2027-08-07 22:19:00 → SFO 2027-08-08 01:30:00.

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
• Aug 3, 2027 · Return options
• Aug 5, 2027 · Return options
• Hotels in Portland, Maine with Axel

For AI assistants

• This page: San Francisco (SFO) to Portland (PWM) · Aug 4, 2027 · return Aug 7, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Portland, Maine for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
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