United's Economy Plus offers extra legroom seats towards the front of the economy cabin.
United's MileagePlus allows pooling miles with up to five members for easier ticket upgrades.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $151 (Alaska Airlines) |
One-way from | $74 (United Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $226 |
Good round-trip deal | $331 or less |
Good one-way deal | $174 or less |
Fly from
Fly to
Route
Depart
Return
Price
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Tue 1/6
5:30 am-9:35 am
1 stop4h 05m
San Francisco
Sat 1/10
2:39 pm-6:50 pm
1 stop4h 11m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 1/7
4:51 pm-6:43 pm
Nonstop1h 52m
San Francisco
Fri 1/9
7:30 am-1:41 pm
1 stop6h 11m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Sun 1/25
1:38 pm-8:12 pm
1 stop6h 34m
San Francisco
Tue 1/27
11:36 am-1:30 pm
Nonstop1h 54m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 1/7
7:10 am-1:38 pm
1 stop6h 28m
San Francisco
Sat 1/10
6:00 am-10:07 am
1 stop4h 07m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 1/14
10:33 am-12:23 pm
Nonstop1h 50m
San Francisco
Sun 1/18
7:00 am-12:38 pm
1 stop5h 38m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 1/7
7:20 am-9:11 am
Nonstop1h 51m
San Francisco
Sun 1/11
6:00 am-12:38 pm
1 stop6h 38m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 2/11
6:00 am-2:20 pm
2 stops8h 20m
San Francisco
Tue 2/17
3:25 pm-10:30 pm
1 stop7h 05m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Sat 1/10
5:51 pm-7:43 pm
Nonstop1h 52m
San Francisco
Mon 1/12
11:36 am-1:30 pm
Nonstop1h 54m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Thu 1/8
10:33 am-12:23 pm
Nonstop1h 50m
San Francisco
Sat 1/10
6:56 pm-8:48 pm
Nonstop1h 52m
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 1/7
5:30 am-9:35 am
1 stop4h 05m
San Francisco
Sun 1/11
2:39 pm-8:59 pm
1 stop6h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Portland to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from Portland to San Francisco (average of $36). Flying from Portland to San Francisco in March is currently the most expensive (average of $132). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Portland to San Francisco at noon. Doing so could potentially save you 63% on the flight price compared to flying in the evening, which is usually more expensive.
Travelers seeking maximum savings on their Portland to San Francisco flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
About 15% of weekly flights between Portland and San Francisco have experienced delays in the past year, with the average delay time being 114 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Anonymous,Nov 2025
PDX - BNA
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Anonymous,Nov 2025
PDX - BNA
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Anonymous,Nov 2025
PDX - BNA
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Anonymous,Nov 2025
PDX - BNA
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Anonymous,Nov 2025
PDX - BNA
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
Anonymous,Nov 2025
PDX - BNA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$36 | Average$98 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$63 | Average$225 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$78 | Average$224 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$109 | Average$226 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$247 | Average$382 | FlexibilityNo cancel fee | On-time71% |