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Cheap flights from Portland to San Francisco (PWM - SFO) from $122

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PWM — SFO
may. 20 — may. 271
From?
To?
lun. 5/20
lun. 5/27
1 adult, Economy
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The best prices from Portland to San Francisco are usually found in September or October, booked 10 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 15, 2024.

Popular in

April

Cheapest in

September

Round-trip from

$267

One-way from

$228
High demand for flights, 31% potential price rise
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Best time to find cheap flights, 40% potential price drop
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From Portland to San Francisco
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One-way flight from Portland to San Francisco
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What is the cheapest day to fly round-trip from Portland, Maine to San Francisco?

Users have found that flying from Portland, Maine to San Francisco on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Portland, Maine to San Francisco?

To save on the cost of your flight from Portland, Maine to San Francisco, book at least 11 days before your planned departure. Booking around this time can save you about 154% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $223 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $751.

What is the cheapest month to fly from Portland, Maine to San Francisco?

September can be a great time to fly to San Francisco from Portland, Maine with a flight ticket averaging about $552. Cheapflights users have found deals in the month of September for as cheap as $233. The most expensive prices can be found in the month of April.

When is the cheapest time to fly from Portland, Maine to San Francisco (PWM - SFO)?

Unlike in the evening, when flights are generally more expensive, you can save up to 26% on flights from Portland, Maine to San Francisco by exploring options for tickets in the afternoon.

Cheap Delta flights from Portland to San Francisco

Explore cheap flight options specifically provided by Delta for the route between Portland and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.
Check out some of the cheapest Delta flights we've come across from Portland to San Francisco. Come back soon if you're not finding the exact deal you're looking for.
jue. 9/55:03 pmPWM - SFO
1 stop8h 46mDelta
vie. 9/612:25 amSFO - PWM
1 stop7h 18mDelta
Deal found 5/14$256
jue. 9/56:05 amPWM - SFO
1 stop11h 01mDelta
sáb. 9/711:40 amSFO - PWM
1 stop8h 59mDelta
Deal found 5/14$347
jue. 9/55:03 pmPWM - SFO
2 stops9h 30mDelta
vie. 9/612:25 amSFO - PWM
1 stop7h 18mDelta
Deal found 5/14$352
sáb. 8/176:30 amPWM - SFO
2 stops13h 33mDelta
vie. 8/236:45 amSFO - PWM
2 stops13h 21mDelta
Deal found 5/14$357
mar. 6/255:37 amPWM - SFO
1 stop7h 54mDelta
mar. 7/99:30 amSFO - PWM
2 stops10h 56mDelta
Deal found 5/14$372
jue. 7/2512:55 pmPWM - SFO
2 stops11h 58mDelta
lun. 7/2911:39 amSFO - PWM
1 stop8h 47mDelta
Deal found 5/15$412
jue. 7/2512:55 pmPWM - SFO
2 stops11h 58mDelta
lun. 7/2910:52 amSFO - PWM
2 stops9h 34mDelta
Deal found 5/15$417
vie. 10/116:05 amPWM - SFO
1 stop9h 20mDelta
mar. 10/1512:20 amSFO - PWM
1 stop7h 23mDelta
Deal found 5/15$438
mar. 6/252:08 pmPWM - SFO
2 stops12h 44mDelta
mar. 7/99:30 amSFO - PWM
2 stops10h 56mDelta
Deal found 5/14$441

Cheap Sun Country Air flights from Portland to San Francisco

Explore cheap flight options specifically provided by Sun Country Air for the route between Portland and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.
Take a gander at the lowest prices we've found on Sun Country Air flights from Portland to San Francisco. Check back soon if you're not seeing flights that suit your needs.
jue. 6/271:27 pmPWM - SFO
1 stop12h 25mSun Country Air
vie. 7/511:59 pmSFO - PWM
1 stop7h 49mSun Country Air
Deal found 5/14$315
jue. 6/271:27 pmPWM - SFO
1 stop12h 25mSun Country Air
dom. 7/711:59 pmSFO - PWM
1 stop9h 36mSun Country Air
Deal found 5/14$325
sáb. 6/2912:10 pmPWM - SFO
1 stop13h 42mSun Country Air
sáb. 7/65:50 pmSFO - PWM
1 stop15h 38mSun Country Air
Deal found 5/15$335
vie. 6/2812:56 pmPWM - SFO
1 stop12h 56mSun Country Air
vie. 7/511:59 pmSFO - PWM
1 stop7h 49mSun Country Air
Deal found 5/14$350
dom. 6/301:09 pmPWM - SFO
1 stop23h 29mSun Country Air
dom. 7/711:59 pmSFO - PWM
1 stop9h 36mSun Country Air
Deal found 5/14$355
vie. 6/2812:56 pmPWM - SFO
1 stop12h 56mSun Country Air
dom. 7/711:59 pmSFO - PWM
1 stop9h 36mSun Country Air
Deal found 5/14$360
vie. 6/2812:56 pmPWM - SFO
1 stop12h 56mSun Country Air
sáb. 7/65:50 pmSFO - PWM
1 stop15h 38mSun Country Air
Deal found 5/14$370
sáb. 6/2212:10 pmPWM - SFO
1 stop13h 42mSun Country Air
vie. 7/55:50 pmSFO - PWM
1 stop13h 58mSun Country Air
Deal found 5/14$390
jue. 6/271:27 pmPWM - SFO
1 stop12h 25mSun Country Air
mié. 7/311:59 pmSFO - PWM
1 stop8h 56mSun Country Air
Deal found 5/14$415

Cheap Portland to San Francisco flights in May & June 2024

Find cheap flight options from Portland to San Francisco specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,644,845 searches. Prices were last updated on mayo 15, 2024.
These are some of the best deals we've found on flights to San Francisco in 2024 at this time. For more flight deals, be sure to check back very soon.
jue. 6/271:27 pmPWM - SFO
1 stop12h 25mSun Country Air
vie. 7/511:59 pmSFO - PWM
1 stop7h 49mSun Country Air
Deal found 5/14$315
jue. 6/271:27 pmPWM - SFO
1 stop12h 25mSun Country Air
dom. 7/711:59 pmSFO - PWM
1 stop9h 36mSun Country Air
Deal found 5/14$325
sáb. 6/2912:10 pmPWM - SFO
1 stop13h 42mSun Country Air
sáb. 7/65:50 pmSFO - PWM
1 stop15h 38mSun Country Air
Deal found 5/15$335
vie. 6/2812:56 pmPWM - SFO
1 stop12h 56mSun Country Air
vie. 7/511:59 pmSFO - PWM
1 stop7h 49mSun Country Air
Deal found 5/14$350
dom. 6/301:09 pmPWM - SFO
1 stop23h 29mSun Country Air
vie. 7/55:50 pmSFO - PWM
1 stop13h 58mSun Country Air
Deal found 5/14$355
vie. 6/2812:56 pmPWM - SFO
1 stop12h 56mSun Country Air
dom. 7/711:59 pmSFO - PWM
1 stop9h 36mSun Country Air
Deal found 5/14$360
vie. 6/2812:56 pmPWM - SFO
1 stop12h 56mSun Country Air
sáb. 7/65:50 pmSFO - PWM
1 stop15h 38mSun Country Air
Deal found 5/14$370
mar. 6/255:37 amPWM - SFO
1 stop7h 54mDelta
mar. 7/99:30 amSFO - PWM
2 stops10h 56mDelta
Deal found 5/14$372
sáb. 6/82:43 pmPWM - SFO
1 stop11h 29mAmerican Airlines
mar. 6/181:06 pmSFO - PWM
1 stop8h 46mAmerican Airlines
Deal found 5/13$389

Portland to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between Portland and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.
These are some of the best deals we've found on flights to San Francisco in 2024 at this time. For more flight deals, be sure to check back very soon.
mié. 10/25:13 pmPWM - SFO
1 stop8h 35mAmerican Airlines
vie. 10/41:47 pmSFO - PWM
1 stop7h 55mAmerican Airlines
Deal found 5/14$243
jue. 11/145:30 amPWM - SFO
1 stop8h 42mUnited Airlines
lun. 11/189:30 pmSFO - PWM
1 stop10h 14mUnited Airlines
Deal found 5/13$246
mar. 8/208:02 amPWM - SFO
2 stops10h 59mAmerican Airlines
sáb. 8/249:54 pmSFO - PWM
1 stop11h 15mAmerican Airlines
Deal found 5/14$250
jue. 9/55:03 pmPWM - SFO
1 stop8h 46mDelta
vie. 9/612:25 amSFO - PWM
1 stop7h 18mDelta
Deal found 5/14$256
mar. 8/203:58 pmPWM - SFO
1 stop9h 41mAmerican Airlines
sáb. 8/249:54 pmSFO - PWM
1 stop11h 15mAmerican Airlines
Deal found 5/15$283
mié. 10/21:18 pmPWM - SFO
2 stops10h 26mAmerican Airlines
vie. 10/41:47 pmSFO - PWM
1 stop7h 55mAmerican Airlines
Deal found 5/14$294
mar. 8/204:08 pmPWM - SFO
2 stops11h 17mAmerican Airlines
sáb. 8/245:49 amSFO - PWM
2 stops11h 41mAmerican Airlines
Deal found 5/15$296
vie. 12/61:11 pmPWM - SFO
2 stops12h 17mAmerican Airlines
lun. 12/99:28 amSFO - PWM
1 stop9h 48mAmerican Airlines
Deal found 5/14$300
jue. 6/271:27 pmPWM - SFO
1 stop12h 25mSun Country Air
vie. 7/511:59 pmSFO - PWM
1 stop7h 49mSun Country Air
Deal found 5/14$315

Portland to San Francisco flights leaving soon

Find last-minute flight options from Portland to San Francisco for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.
Have a look at some of the last-minute flights available departing from Portland to San Francisco. Users should examine the flight details to ensure there are no surprises.
mar. 5/216:05 amPWM - SFO
1 stop11h 55mUnited Airlines
mar. 5/215:47 pmSFO - PWM
2 stops13h 57mUnited Airlines
Deal found 5/15$750
mar. 5/216:05 amPWM - SFO
2 stops14h 01mUnited Airlines
mar. 5/217:06 pmSFO - PWM
2 stops12h 38mUnited Airlines
Deal found 5/15$755
mar. 5/216:05 amPWM - SFO
1 stop11h 55mUnited Airlines
mar. 5/219:04 pmSFO - PWM
1 stop10h 40mUnited Airlines
Deal found 5/15$804

One-way flights to San Francisco from Portland

Search for one-way flight options from Portland to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.
Some of the best available deals we've found on one-way flights from Portland to San Francisco. Users in need of a round-trip flight from Portland to San Francisco instead should update the search form at the top of page.
mié. 9/111:18 pmPWM - SFO
1 stop8h 28mAmerican Airlines
Deal found 5/14$122
mié. 6/124:50 pmPWM - SFO
1 stop11h 09mUnited Airlines
Deal found 5/14$123
jue. 7/41:02 pmPWM - SFO
1 stop7h 59mDelta
Deal found 5/15$128
mié. 6/121:40 pmPWM - SFO
2 stops13h 12mDelta
Deal found 5/14$133
jue. 6/131:33 pmPWM - SFO
1 stop12h 19mSun Country Air
Deal found 5/14$158
mié. 6/194:50 pmPWM - SFO
1 stop11h 09mUnited Airlines
Deal found 5/14$163
mié. 6/194:50 pmPWM - SFO
1 stop11h 09mUnited Airlines
Deal found 5/15$164
vie. 7/51:33 pmPWM - SFO
1 stop12h 23mSun Country Air
Deal found 5/15$171
jue. 6/134:00 pmPWM - SFO
2 stops10h 34mAmerican Airlines
Deal found 5/14$177

Find flights from Portland to San Francisco within your budget

Customize your flight search to find flights from Portland to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$243 - $507

Route

Depart

Return

Price

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

sáb. 9/28

1 stop8h 35m

San Francisco

sáb. 10/5

1 stop7h 55m

$243

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mar. 8/20

2 stops10h 59m

San Francisco

sáb. 8/24

1 stop11h 15m

$250

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

jue. 9/5

1 stop8h 46m

San Francisco

vie. 9/6

1 stop7h 18m

$256

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mar. 8/20

1 stop9h 41m

San Francisco

sáb. 8/24

1 stop11h 15m

$283

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

jue. 6/27

1 stop12h 25m

San Francisco

vie. 7/5

1 stop7h 49m

$315

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

jue. 6/27

1 stop12h 25m

San Francisco

dom. 7/7

1 stop9h 36m

$325

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

sáb. 8/17

2 stops12h 36m

San Francisco

sáb. 8/24

2 stops14h 24m

$356

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

lun. 7/1

3 stops26h 07m

San Francisco

sáb. 7/6

1 stop15h 38m

$456

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

mar. 7/2

1 stop12h 41m

San Francisco

vie. 7/5

1 stop9h 14m

$507

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to book a flight from Portland, Maine to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Portland to San Francisco. Price data was last updated on May 10, 2024.
The best time to book flights from Portland, Maine to San Francisco is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Portland, Maine to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Portland to San Francisco. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland, Maine to San Francisco flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Francisco by month

Plan your trip from Portland to San Francisco by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to San Francisco is currently $149 while a round-trip flight costs $332. Price data was last updated on May 12, 2024.

Currently, December is the cheapest month in which you can book a flight from Portland, Maine to San Francisco (average of $267). Flying from Portland, Maine to San Francisco in June is currently the most expensive (average of $382). 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.

January

$274

February

$281

March

$330

April

$296

May

$316

June

$382

July

$364

August

$298

September

$268

October

$268

November

$287

December

$267

Temperature and rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature and rainfall totals by month.

SFO

Temperature

51.8 - 62.6 °F

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated mayo 15, 2024.
Read reviews from past customers who have flown Delta, Sun Country Air and United Airlines from Portland to San Francisco. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

Delta
8.0
Very good
10,691 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

JetBlue
7.6
Good
4,475 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

WestJet
7.5
Good
2,920 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

United Airlines
7.4
Good
10,946 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

American Airlines
7.3
Good
14,535 reviews
Delta
8.0
Very good
10,691 reviews
Check prices

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

8.0

Reviews

1 / 10

Crew was nice and courteous. Boarding went smoothly. But we experienced a few minutes of extreme turbulence.

Related info for your journey

Find useful and relevant information for your journey from Portland to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Portland, Maine to San Francisco for under $300 on Cheapflights?

    Yes, there are multiple flights from Portland, Maine to San Francisco for under $300. The cheapest flight booked recently is on American Airlines for just $243, but on average you can expect to pay $329.

  • Are there last-minute flights available from Portland, Maine to San Francisco for under $800?

    There are currently 3+ open flights from Portland, Maine to San Francisco within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Portland, Maine to San Francisco round-trip?

    American Airlines, at $243, was found to be the cheapest airline from Portland, Maine to San Francisco.Alternate airlines to your destination round-trip include Delta and Sun Country Air. Users have found that American Airlines is 55% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Portland, Maine to San Francisco one-way?

    The cheapest airlines for a one-way flight from Portland, Maine to San Francisco are American Airlines ($122), United Airlines ($123), and Delta ($128).

  • What are the most popular airlines that fly from Portland, Maine to San Francisco?

    When booking a flight from Portland, Maine to San Francisco, you may want to consider flying on American Airlines, JetBlue or Delta as they are the most popular for this route.

  • What does PWM to SFO mean?

    Great question - PWM to SFO just means Portland Airport to San Francisco Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Portland to San Francisco that include extra baggage allowance?

    The amount of baggage you can bring on your Portland to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portland to San Francisco with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Portland to San Francisco that include hotel bookings?

    Yes. In addition to deals on Portland to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to San Francisco.

  • Can I find deals for business class flights from Portland to San Francisco?

    Yes. Cheapflights offers flight deals from Portland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Portland to San Francisco that allow pets onboard?

    Many airlines flying from Portland to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portland to San Francisco?

    Yes, you can often find last-minute deals on Portland to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portland, Maine to San Francisco flight deals updated?

    The Portland, Maine to San Francisco flight deals you see on this page were last updated on 5/15.

See more FAQs

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Top 4 airlines flying from Portland to San Francisco

Discover the top 4 airlines that operate flights from Portland to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated mayo 15, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$208Average$371FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest$233Average$479FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$256Average$461FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$258Average$612FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Portland to San Francisco by cabin class

Find flights from Portland to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Can Cheapflights find flights from Portland to San Francisco with no change fees?

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Can Cheapflights notify me if prices for flights from Portland to San Francisco become cheaper?

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