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San Luis Obispo

$197+ Cheap flights from Washington, D.C. (WAS) to San Luis Obispo (SBP)

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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SBP
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Washington, D.C. to San Luis Obispo

Cheapest flights from Washington, D.C. to San Luis Obispo
Explore the most affordable flight options available from Washington, D.C. to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/236:30 amDCA - SBP
1 stop8h 16mAmerican Airlines
Wed 12/3112:36 pmSBP - DCA
1 stop7h 23mAmerican Airlines
Deal found 12/16$491
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/236:00 amBWI - SBP
1 stop8h 46mAmerican Airlines
Wed 12/3112:36 pmSBP - BWI
1 stop7h 26mAmerican Airlines
Deal found 12/16$574
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/235:59 pmDCA - SBP
1 stop8h 45mUnited Airlines
Wed 12/318:15 amSBP - DCA
1 stop10h 28mUnited Airlines
Deal found 12/17$591
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/236:37 pmIAD - SBP
1 stop8h 07mUnited Airlines
Wed 12/315:28 amSBP - IAD
1 stop8h 02mUnited Airlines
Deal found 12/16$591
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/2310:44 amBWI - SBP
2 stops14h 15mUnited Airlines
Wed 12/316:23 pmSBP - BWI
1 stop7h 51mUnited Airlines
Deal found 12/17$596
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/236:37 pmIAD - SBP
1 stop8h 07mUnited Airlines
Sun 12/286:23 pmSBP - IAD
1 stop9h 57mUnited Airlines
Deal found 12/15$644
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/196:30 amBWI - SBP
1 stop8h 33mUnited Airlines
Sun 12/286:23 pmSBP - BWI
1 stop7h 51mUnited Airlines
Deal found 12/16$697
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/2212:35 pmIAD - SBP
1 stop7h 59mUnited Airlines
Fri 12/266:23 pmSBP - IAD
1 stop9h 57mUnited Airlines
Deal found 12/15$743
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Fri 12/199:12 amIAD - SBP
2 stops12h 12mAmerican Airlines
Sun 12/287:07 pmSBP - IAD
2 stops10h 35mAmerican Airlines
Deal found 12/17$746
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/196:00 amBWI - SBP
2 stops13h 00mAmerican Airlines
Sun 12/287:07 pmSBP - BWI
2 stops13h 08mAmerican Airlines
Deal found 12/16$746
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/199:12 amIAD - SBP
2 stops12h 12mAmerican Airlines
Sun 1/47:07 pmSBP - IAD
2 stops10h 35mAmerican Airlines
Deal found 12/15$810
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/226:05 amIAD - SBP
1 stop8h 41mAmerican Airlines
Fri 12/267:07 pmSBP - IAD
2 stops10h 35mAmerican Airlines
Deal found 12/15$862

Find flight deals from Washington, D.C. to San Luis Obispo

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to San Luis Obispo (SBP). 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$322
(Alaska Airlines)

One-way from

$197
(Alaska Airlines)

Popular in

June

Cheapest in

April

Average price

$608
Provider with most accurate pricing for Washington, D.C. (WAS)-San Luis Obispo County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San Luis Obispo County flights.
Search Deals
From Washington, D.C. (WAS) to San Luis Obispo County
Search Deals
One-way flight from Washington, D.C. (WAS) to San Luis Obispo County
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to San Luis Obispo 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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to San Luis Obispo that are best for you.

Fly from

Washington, D.C.

Fly to

San Luis Obispo

Route

Depart

Return

Price

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Sat 1/10

5:26 pm-11:20 pm

1 stop8h 54m

San Luis Obispo County

Tue 1/13

5:14 pm-5:04 pm

1 stop20h 50m

$322

Washington, D.C.San Luis Obispo

DCA - SBP

DCASBP

Washington, D.C. Reagan-National

Sat 1/31

8:59 am-4:34 pm

1 stop10h 35m

San Luis Obispo County

Wed 2/4

6:17 pm-9:59 pm

1 stop24h 42m

$323

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 1/6

6:29 pm-11:35 pm

1 stop8h 06m

San Luis Obispo County

Thu 1/8

6:00 am-5:04 pm

1 stop8h 04m

$394

BaltimoreSan Luis Obispo

BWI - SBP

BWISBP

Baltimore/Washington

Mon 2/2

7:14 pm-11:20 pm

2 stops31h 06m

San Luis Obispo County

Thu 2/5

6:17 pm-6:14 pm

1 stop20h 57m

$399

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Thu 5/7

5:37 pm-11:18 pm

1 stop8h 41m

San Luis Obispo County

Sat 5/9

6:00 am-5:23 pm

1 stop8h 23m

$402

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Mon 2/2

6:04 pm-11:20 pm

2 stops32h 16m

San Luis Obispo County

Thu 2/5

6:17 pm-4:26 pm

1 stop19h 09m

$410

BaltimoreSan Luis Obispo

BWI - SBP

BWISBP

Baltimore/Washington

Sat 1/31

7:14 pm-4:55 pm

2 stops24h 41m

San Luis Obispo County

Wed 2/4

5:35 pm-6:14 pm

2 stops21h 39m

$433

BaltimoreSan Luis Obispo

BWI - SBP

BWISBP

Baltimore/Washington

Tue 1/6

7:04 am-4:45 pm

2 stops12h 41m

San Luis Obispo County

Thu 1/8

6:00 am-6:14 pm

2 stops33h 14m

$464

BaltimoreSan Luis Obispo

BWI - SBP

BWISBP

Baltimore/Washington

Sat 1/31

6:34 pm-11:44 pm

1 stop8h 10m

San Luis Obispo County

Wed 2/4

12:30 pm-11:15 pm

1 stop7h 45m

$469

Washington, D.C.San Luis Obispo

DCA - SBP

DCASBP

Washington, D.C. Reagan-National

Thu 1/1

7:00 am-12:19 pm

1 stop8h 19m

San Luis Obispo County

Mon 1/5

7:07 pm-7:00 am

1 stop8h 53m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 26 results
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Compare providers for flights from Washington, D.C. to San Luis Obispo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to San Luis Obispo in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-San Luis Obispo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-San Luis Obispo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-San Luis Obispo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-San Luis Obispo flights, Cheapflights users trust eDreams the most. eDreams 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 Washington, D.C.-San Luis Obispo 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 Washington, D.C. to San Luis Obispo

Have a flexible travel schedule? Discover the best time to fly to San Luis Obispo from Washington, D.C. 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 Washington, D.C. to San Luis Obispo

What is the cheapest month to book a flight from Washington, D.C. to San Luis Obispo?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to San Luis Obispo (average of $202). Flying from Washington, D.C. to San Luis Obispo in May is currently the most expensive (average of $341). 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.

What is the cheapest time of day to fly from WAS to SBP?

Find hourly flight availability from Washington, D.C. to San Luis Obispo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Washington, D.C. to San Luis Obispo in the evening. Doing so could potentially save you 44% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. to San Luis Obispo?

Reviews of airlines servicing San Luis Obispo

Get insights into the airlines that provide service to San Luis Obispo. 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 Luis Obispo. Reviews last updated December 18, 2025.
Get a feel of what it's like to fly with Alaska Airlines, United Airlines, and American Airlines from Washington, D.C. to San Luis Obispo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,474 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,053 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Food

7.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

  • What airport do you fly into for flights to San Luis Obispo from Washington, D.C.?

    If you book a flight to San Luis Obispo from Washington, D.C., you will be flying to County, which is the city’s only airport. San Luis Obispo County (SBP) is located 3.3 mi from the center of San Luis Obispo. There are 0 flights from Washington, D.C. to County per day from 2 different airlines.

  • How long is the flight from Washington, D.C. to San Luis Obispo?

    Departing from Washington, D.C. to San Luis Obispo will take you 8h 19m. Airlines will cover a distance of 2393 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. to San Luis Obispo round-trip?

    American Airlines, at $322, was found to be the cheapest airline from Washington, D.C. to San Luis Obispo. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 44% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Washington, D.C. to San Luis Obispo one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $110. Users have also found prices from $136 and $234 on American Airlines and United Airlines, respectively.

  • What are the most popular routes from Washington, D.C. to San Luis Obispo?

    While some choose either Baltimore/Washington - San Luis Obispo County or Washington, D.C. Reagan-National - San Luis Obispo County, Washington, D.C. Dulles Intl - San Luis Obispo County is the most popular route from Washington, D.C. to San Luis Obispo.

  • Can I find deals for flights from Washington, D.C. to San Luis Obispo that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. to San Luis Obispo?

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

  • Can I find deals for business class flights from Washington, D.C. to San Luis Obispo?

    Yes. Cheapflights offers flight deals from Washington, D.C. to San Luis Obispo 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 Washington, D.C. to San Luis Obispo?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to San Luis Obispo (average of $202). Flying from Washington, D.C. to San Luis Obispo in May is currently the most expensive (average of $341). 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 San Luis Obispo?

Book flights to San Luis Obispo if you plan to visit one of these locations
Morro Bay
Arroyo Grande
Avila Beach
San Simeon

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Alternative routes for Washington, D.C. to San Luis Obispo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Washington, D.C. to San Luis Obispo

Discover the top 2 airlines that operate flights from Washington, D.C. to San Luis Obispo. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$322Average$567FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$424Average$560FlexibilityNo cancel feeOn-time69%

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