IAD - SBP

$178 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl 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

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 23% 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
$362
Typical prices: $416-$516
Alaska Airlines
Wed 1/14Mon 1/19
IAD - SBP • 1 stop
Cheapest one-way
$178
American Airlines
Wed 12/3
IAD - SBP • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $362 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+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 Dulles Intl to San Luis Obispo (IAD-SBP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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 Dulles Intl to San Luis Obispo

Wed, Jan 14 - Mon, Jan 19
Alaska Airlines Logo
5:26 pm - 11:25 pmIAD-SBP
8h 59m1 stop
Alaska Airlines Logo
3:12 pm - 5:04 pmSBP-IAD
22h 52m1 stop
$362Alaska Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
American Airlines Logo
7:55 am - 3:36 pmIAD-SBP
10h 41m2 stops
American Airlines Logo
12:28 pm - 10:33 pmSBP-IAD
7h 05m1 stop
$377American Airlines
Find Deal
Mon, Mar 9 - Tue, Mar 10
Alaska Airlines Logo
5:51 pm - 11:07 pmIAD-SBP
8h 16m1 stop
Alaska Airlines Logo
6:00 am - 5:25 pmSBP-IAD
8h 25m1 stop
$391Alaska Airlines
Find Deal
Fri, Jan 2 - Wed, Jan 7
American Airlines Logo
6:05 am - 11:46 amIAD-SBP
8h 41m1 stop
American Airlines Logo
9:53 am - 11:12 pmSBP-IAD
10h 19m2 stops
$397American Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Alaska Airlines Logo
5:26 pm - 11:25 pmIAD-SBP
8h 59m1 stop
Alaska Airlines Logo
3:12 pm - 5:04 pmSBP-IAD
22h 52m1 stop
$402Alaska Airlines
Find Deal
Fri, Jan 2 - Wed, Jan 7
Alaska Airlines Logo
6:29 pm - 11:35 pmIAD-SBP
8h 06m1 stop
Alaska Airlines Logo
6:00 am - 5:04 pmSBP-IAD
8h 04m1 stop
$407Alaska Airlines
Find Deal
Mon, Mar 9 - Tue, Mar 10
United Airlines Logo
6:03 pm - 11:46 pmIAD-SBP
8h 43m1 stop
United Airlines Logo
5:15 am - 5:25 pmSBP-IAD
9h 10m2 stops
$438United Airlines
Find Deal
Sat, Mar 28 - Mon, Apr 6
United Airlines Logo
4:00 pm - 11:59 pmIAD-SBP
10h 59m1 stop
United Airlines Logo
10:35 am - 9:04 pmSBP-IAD
7h 29m1 stop
$503United Airlines
Find Deal
Sat, Nov 22 - Fri, Nov 28
United Airlines Logo
4:10 pm - 10:05 pmIAD-SBP
8h 55m1 stop
United Airlines Logo
6:07 pm - 6:48 amSBP-IAD
9h 41m1 stop
$586United Airlines
Find Deal
Mon, Mar 9 - Tue, Mar 10
United Airlines Logo
12:55 pm - 11:59 pmIAD-SBP
14h 04m2 stops
United Airlines Logo
5:15 am - 5:25 pmSBP-IAD
9h 10m2 stops
$590United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to San Luis Obispo flights

Get data-powered insights and trends into flights from Dulles Intl 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. Dulles Intl Airport 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. Dulles Intl Airport to San Luis Obispo departing in January.

What’s the cheapest day of the week to fly from Washington Dulles Airport to San Luis Obispo?

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

If you are looking for a flight deal from Washington Dulles Airport to San Luis Obispo, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from San Luis Obispo, Thursday is the cheapest day to fly and Sunday is the most expensive.

Good to know

Low seasonMarch
Cheapest flight$178
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from Washington Dulles Airport to San Luis Obispo

When to book flights from Dulles Intl to San Luis Obispo

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to San Luis Obispo flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to San Luis Obispo was $178 for a one-way ticket and $362 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and San Luis Obispo?

    A passport is not required to fly from Washington Dulles Airport to San Luis Obispo.

  • Which airports will I be using when flying from Washington Dulles Airport to San Luis Obispo?

    Washington Dulles Airport and San Luis Obispo are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at San Luis Obispo County.

  • Which aircraft models fly most regularly from Washington Dulles Airport to San Luis Obispo?

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

  • Which airline alliances offer flights from Washington Dulles Airport to San Luis Obispo?

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San Luis Obispo are United Airlines and American Airlines. With an average price for the route of $567 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $507 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SBP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl 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 Dulles Intl 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.
7.4
United AirlinesOverall score based on 8982 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

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.

8.0 ExcellentMonsieur, Oct 2025IAD - EWR
Read more United Airlines reviews

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.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

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.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

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.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

Everything you need to know for your flight from Dulles Intl to San Luis Obispo

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.