WAS - SBP

$178 Find Cheap Flights from Washington, D.C. to San Luis Obispo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to San Luis Obispo departing on 12/3. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Luis Obispo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Luis Obispo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Luis Obispo, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$322
Typical prices: $536-$773
Alaska Airlines
Sat 12/6Tue 12/9
IAD - SBP • 1 stop
Cheapest one-way
$178
American Airlines
Wed 12/3
IAD - SBP • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $322 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 30% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Luis Obispo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to San Luis Obispo (WAS-SBP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to San Luis Obispo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to San Luis Obispo

Sat, Dec 6 - Tue, Dec 9
Alaska Airlines Logo
5:37 pm - 11:18 pmIAD-SBP
8h 41m1 stop
Alaska Airlines Logo
6:00 am - 5:30 pmSBP-IAD
8h 30m1 stop
$322Alaska Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
Alaska Airlines Logo
8:00 am - 6:59 pmDCA-SBP
13h 59m1 stop
Alaska Airlines Logo
7:51 pm - 9:59 pmSBP-DCA
23h 08m1 stop
$324Alaska Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
American Airlines Logo
6:30 am - 11:41 amDCA-SBP
8h 11m1 stop
American Airlines Logo
12:28 pm - 11:00 pmSBP-DCA
7h 32m1 stop
$355American Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
American Airlines Logo
6:00 am - 11:41 amIAD-SBP
8h 41m1 stop
American Airlines Logo
12:28 pm - 10:59 pmSBP-IAD
7h 31m1 stop
$355American Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
American Airlines Logo
8:30 am - 3:36 pmDCA-SBP
10h 06m2 stops
American Airlines Logo
6:00 am - 3:54 pmSBP-DCA
6h 54m1 stop
$360American Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
American Airlines Logo
6:25 am - 3:36 pmIAD-SBP
12h 11m2 stops
American Airlines Logo
12:28 pm - 10:59 pmSBP-IAD
7h 31m1 stop
$360American Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
American Airlines Logo
8:30 am - 3:36 pmDCA-SBP
10h 06m2 stops
American Airlines Logo
6:00 am - 6:54 pmSBP-DCA
9h 54m2 stops
$365American Airlines
Find Deal
Thu, Dec 11 - Sat, Dec 13
United Airlines Logo
7:00 am - 12:18 pmDCA-SBP
8h 18m1 stop
United Airlines Logo
8:33 am - 9:36 pmSBP-DCA
10h 03m1 stop
$375United Airlines
Find Deal
Mon, Mar 9 - Tue, Mar 10
Hawaiian Airlines Logo
6:20 pm - 11:17 pmIAD-SBP
7h 57m1 stop
Hawaiian Airlines Logo
6:00 am - 5:27 pmSBP-IAD
8h 27m1 stop
$375Hawaiian Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
United Airlines Logo
8:20 am - 1:25 pmBWI-SBP
8h 05m1 stop
United Airlines Logo
7:15 am - 10:25 pmSBP-BWI
12h 10m2 stops
$392United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to San Luis Obispo flights

Get data-powered insights and trends into flights from Washington, D.C. to San Luis Obispo to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to San Luis Obispo?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to San Luis Obispo departing in December.

What’s the cheapest day of the week to fly from Washington, D.C. to San Luis Obispo?

The average price of all round-trip flights from Washington, D.C. to San Luis Obispo clicked on KAYAK for each day over the last 12 months.

When flying from Washington, D.C. to San Luis Obispo, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to San Luis Obispo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to San Luis Obispo is April, where tickets cost $397 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $1,122 and $650 respectively.

Good to know

Low seasonMarch
Cheapest flight$178
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 97% increase in price.
Flight from Washington Dulles Airport to San Luis Obispo

When to book flights from Washington, D.C. to San Luis Obispo

Are your dates flexible? Find out the best times to travel from Washington, D.C. to San Luis Obispo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to San Luis Obispo

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to San Luis Obispo was $178 for a one-way ticket and $322 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and San Luis Obispo?

    No, a passport isn't needed to fly from Washington, D.C. to San Luis Obispo. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington, D.C. to San Luis Obispo?

    On your way to San Luis Obispo, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at San Luis Obispo County.

  • Which aircraft models fly most regularly from Washington, D.C. to San Luis Obispo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to San Luis Obispo?

    Star Alliance, and oneworld are the airline alliances operating flights between Washington, D.C. and San Luis Obispo, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to San Luis Obispo, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San Luis Obispo are Alaska Airlines and United Airlines. With an average price for the route of $534 and an overall rating of 8.0, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $529 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. to San Luis Obispo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to San Luis Obispo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to San Luis Obispo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Luis Obispo from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to San Luis Obispo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Luis Obispo with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to San Luis Obispo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Luis Obispo from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Washington, D.C. to San Luis Obispo

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to San Luis Obispo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to San Luis Obispo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11259 reviews
7.8Comfort
8.5Crew
8.1Boarding
7.1Food
7.0Entertainment
Airline reviews

Boarding process was poorly handled by the gate crew and the onboard crew. No effort was made to provide equal treatment to passengers with overhead bin space. Crew seemed disengaged and unfriendly.

4.0 OkaySteve, Sep 2025DCA - SFO
Read more Alaska Airlines reviews

Boarding process was poorly handled by the gate crew and the onboard crew. No effort was made to provide equal treatment to passengers with overhead bin space. Crew seemed disengaged and unfriendly.

Plane seats are comfortable and seemed more roomy than others I have been on. Playing was clean and flight crew friendly. Passengers who have a connecting flight should however be allowed off the plane first

Awesome. Great flight. Super nice people and I like the extra space

On time, WiFi worked, reasonable legroom, helpful staff. Unfortunately there was no water for handwashing in the rear lavatory.

Such great crew, from checkin to the plane. So friendly and helpful, I was genuinely impressed.

My husband unfortunately had a very large lady next to him who did not fit in the seat and had to have the armrest up so she was partially in his seat and she also had horrible BO

The Boeing 737 plane is old with narrow seats and tiny lavatories. The flight was delayed for over 2 hours. The flight attendants were discourteous.

Only offered water, no snacks provided, and it was cold on the plane, everyone was wearing sweatshirt or jacket in June. I asked for blanket, but crew said they didnt have anything and would turn the heat up, that didn't happen, so for 6 hours I remained cold.

One of the stewardess, Tre, went above and beyond to ensure my comfort!

Very good. Gate personnel were excellent flight attendants were also able to change my seat at the last minute everyone, courteous, polite, and.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

We are too tired and frustrated to comment politely at this point

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

Everything you need to know for your flight from Washington, D.C. to San Luis Obispo

Information on your arrival and departure airports