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$444+ Cheap flights from San Luis Obispo to Portland, ME (SBP - PWM)

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
SBP — PWM
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from San Luis Obispo to Portland

Cheapest flights from San Luis Obispo to Portland
Explore the most affordable flight options available from San Luis Obispo to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:52 pm
SBP
-
PWM
2 stops13h 26m
United Airlines
Sat 5/93:23 pm
PWM
-
SBP
1 stop8h 53m
United Airlines
Deal found 3/8$454
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:02 pm
SBP
-
PWM
2 stops13h 13m
American Airlines
Tue 4/147:07 am
PWM
-
SBP
2 stops14h 13m
American Airlines
Deal found 3/9$458
This American Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:00 am
SBP
-
PWM
2 stops13h 48m
American Airlines
Sat 7/116:00 am
PWM
-
SBP
2 stops12h 30m
American Airlines
Deal found 3/10$499
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:04 pm
SBP
-
PWM
2 stops12h 03m
United Airlines
Mon 6/83:16 pm
PWM
-
SBP
2 stops11h 28m
United Airlines
Deal found 3/8$560

Find flight deals from San Luis Obispo to Portland

Discover tips and strategies to find the most affordable flight options for your journey from San Luis Obispo (SBP) to Portland (PWM). 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 March 11, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$354
(United Airlines)
Provider with most accurate pricing for San Luis Obispo County-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Luis Obispo County-Portland flights.
Search Deals
From San Luis Obispo County to Portland
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Luis Obispo to Portland 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 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from San Luis Obispo to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San Luis ObispoPortland

SBP - PWM

SBPPWM

San Luis Obispo County

Tue 5/5

5:52 pm-10:18 am

2 stops13h 26m

Portland

Sat 5/9

3:23 pm-9:16 pm

1 stop8h 53m

$454

San Luis ObispoPortland

SBP - PWM

SBPPWM

San Luis Obispo County

Wed 4/8

7:02 pm-11:15 am

2 stops13h 13m

Portland

Tue 4/14

7:07 am-6:20 pm

2 stops14h 13m

$458
Quickest round-trip

San Luis ObispoPortland

SBP - PWM

SBPPWM

San Luis Obispo County

Sat 7/4

6:00 am-4:59 pm

1 stop7h 59m

Portland

Sat 7/11

6:27 pm-11:44 pm

1 stop8h 17m

$673

San Luis ObispoPortland

SBP - PWM

SBPPWM

San Luis Obispo County

Sat 6/6

5:00 am-3:52 pm

1 stop7h 52m

Portland

Mon 6/8

3:16 pm-11:44 pm

2 stops11h 28m

$713
Cheapest one-way
Quickest one-way

San Luis ObispoPortland

SBP - PWM

SBPPWM

San Luis Obispo County

Thu 6/11

5:00 am-11:51 pm

3 stops15h 51m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Luis Obispo-Portland, Maine flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Luis Obispo-Portland, Maine flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Luis Obispo-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Luis Obispo-Portland, Maine flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Luis Obispo-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Luis Obispo to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from San Luis Obispo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Luis Obispo to Portland

What is the cheapest month to book a flight from San Luis Obispo to Portland, Maine?

Currently, October is the cheapest month in which you can book a flight from San Luis Obispo to Portland, Maine (average of $209). Flying from San Luis Obispo to Portland, Maine in December is currently the most expensive (average of $402). 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.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated March 11, 2026.
See what other customers who have flown with United Airlines from San Luis Obispo to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,418 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

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

  • How long is the flight from San Luis Obispo to Portland, Maine?

    For as low as $458, United Airlines can have you in Portland, Maine from San Luis Obispo in 13h 13m. The distance from San Luis Obispo to Portland, Maine is about 2703 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from San Luis Obispo to Portland, Maine round-trip?

    United Airlines, at $438, was found to be the cheapest airline from San Luis Obispo to Portland, Maine..

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

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

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

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

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

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

  • What is the cheapest month to book a flight from San Luis Obispo to Portland, Maine?

    Currently, October is the cheapest month in which you can book a flight from San Luis Obispo to Portland, Maine (average of $209). Flying from San Luis Obispo to Portland, Maine in December is currently the most expensive (average of $402). 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.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Lewiston
Conway

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Top airline flying from San Luis Obispo to Portland

Discover the top airline that operate flights from San Luis Obispo to Portland. 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 2,558,603 searches. Data last updated March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$438Average$844FlexibilityNo cancel feeOn-time69%

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