SBP - IAD

$178 Find Cheap Flights from San Luis Obispo to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Luis Obispo to Dulles Intl departing on 9/25. 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 Washington, D.C. Dulles Intl Airport

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

Save 22% 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.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from San Luis Obispo to Dulles Intl (SBP-IAD)

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

Tue, Aug 26 - Tue, Sep 2
Alaska Airlines Logo
4:57 pm - 4:47 pmSBP-IAD
20h 50m1 stop
Alaska Airlines Logo
5:52 pm - 1:32 pmIAD-SBP
22h 40m1 stop
$302Alaska Airlines
Find Deal
Tue, Oct 21 - Sat, Oct 25
Alaska Airlines Logo
6:00 am - 4:42 pmSBP-IAD
7h 42m1 stop
Alaska Airlines Logo
6:25 am - 6:38 pmIAD-SBP
15h 13m1 stop
$314Alaska Airlines
Find Deal
Tue, Oct 21 - Sat, Oct 25
Alaska Airlines Logo
6:00 am - 4:42 pmSBP-IAD
7h 42m1 stop
Alaska Airlines Logo
6:25 am - 6:38 pmIAD-SBP
15h 13m1 stop
$316Alaska Airlines
Find Deal
Sat, Sep 13 - Wed, Sep 17
American Airlines Logo
12:24 pm - 10:48 pmSBP-IAD
7h 24m1 stop
American Airlines Logo
6:25 am - 11:34 amIAD-SBP
8h 09m1 stop
$319American Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
American Airlines Logo
6:00 am - 10:56 pmSBP-IAD
13h 56m2 stops
American Airlines Logo
6:27 am - 11:25 amIAD-SBP
7h 58m1 stop
$320American Airlines
Find Deal
Wed, Aug 20 - Wed, Aug 27
American Airlines Logo
4:35 pm - 8:42 amSBP-IAD
13h 07m2 stops
American Airlines Logo
6:27 am - 11:25 amIAD-SBP
7h 58m1 stop
$324American Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
American Airlines Logo
4:35 pm - 9:53 amSBP-IAD
14h 18m2 stops
American Airlines Logo
6:27 am - 6:36 pmIAD-SBP
15h 09m2 stops
$325American Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
Hawaiian Airlines Logo
6:00 am - 4:42 pmSBP-IAD
7h 42m1 stop
Hawaiian Airlines Logo
5:42 pm - 10:41 pmIAD-SBP
7h 59m1 stop
$372Hawaiian Airlines
Find Deal
Fri, Aug 22 - Mon, Sep 1
United Airlines Logo
8:10 am - 9:21 pmSBP-IAD
10h 11m1 stop
United Airlines Logo
3:48 pm - 8:28 pmIAD-SBP
7h 40m1 stop
$382United Airlines
Find Deal
Fri, Aug 22 - Mon, Sep 1
United Airlines Logo
5:15 am - 3:34 pmSBP-IAD
7h 19m1 stop
United Airlines Logo
6:35 am - 12:18 pmIAD-SBP
8h 43m1 stop
$411United Airlines
Find Deal
Booking Insights

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

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

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Luis Obispo to Washington, D.C. Dulles Intl Airport, 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 San Luis Obispo to Washington, D.C. Dulles Intl Airport is January, where tickets cost $396 (return) on average. On the other hand, the most expensive months are March and August, where the average cost of round-trip tickets is $692 and $652 respectively.

Good to know

Low seasonMarch
Cheapest flight$178
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly with an average 26% increase in price.
Flight from San Luis Obispo to Washington Dulles Airport

When to book flights from San Luis Obispo to Dulles Intl

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

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

    In the last 3 days, the lowest price for a flight from San Luis Obispo to Washington, D.C. Dulles Intl Airport was $178 for a one-way ticket and $302 for a round-trip.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Luis Obispo to Washington, D.C. are Alaska Airlines and United Airlines. With an average price for the route of $416 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 $503 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Luis Obispo to Washington Dulles Airport?

    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 San Luis Obispo to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from San Luis Obispo 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 San Luis Obispo to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to San Luis Obispo with another airline. Booking your flights between San Luis Obispo and IAD 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 San Luis Obispo to Washington Dulles Airport?

    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 Washington Dulles Airport from San Luis Obispo 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 San Luis Obispo to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from San Luis Obispo to Washington, D.C.. 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 San Luis Obispo to Dulles Intl? 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 10000 reviews
7.1Food
8.5Crew
8.1Boarding
7.1Entertainment
7.8Comfort
Airline reviews

Departing flight to San Diego was delayed. Return flight from SD to SBP was delayed. Not terrible but not ideal

4.0 OkaySean, Jul 2025SBP - SAN
Read more Alaska Airlines reviews

Departing flight to San Diego was delayed. Return flight from SD to SBP was delayed. Not terrible but not ideal

I always heard this was a terrible airline but I was happy to experience otherwise. The seats were more comfortable than delta. They did board late and gate was a little chaotic, which is to be expected for a budget airline. I would definitely do it again for that price.

My email notifications were silenced, so I didn't get word that the departing flight had changed gates. It wasn't until I noticed that few people had gathered for the flight that I checked the airport schedule board, 20 minutes before boarding. I then told several people at the old gate of the change. If I was to receive a text I would have been notified of the change earlier, Or to hear an announcement over the airport intercom.

TERRIFIC! Thank you all. Jason Robert Kidwell My favorite flight attendants.

Canceled flight. No communication of this prior. Rescheduled to next day. Our good seats we purchased months ago turned into last row middle. No apology, reason, nor compensation for time and $ spent.

There was no sitting place in Sea-Tac airport. Even airline didn’t provide any food or dinner. I will never take this airline in my future travel.

delayed flight 3 hours, then took 45 min to get to gate and another 10 min to open door

Delayed flight both ways. Then, on the return flight, we were stuck on the tarmac for at least 30+ minutes. Idk what happened, but this was a bad experience.

The plane was put out of service and had to wait for a new plane to be assigned. No one had any information and the information on the screens was never updated. The call wait time was 2 hours and the estimated time for text assistance was 55 minutes which was a lie because after 55 minutes nothing happened. I understand that delays happen but to not have anyone available to provide any update or reassurance was just negligent. Also, what is the point of having an 800 number if no one answers it and don’t get me started on the text message system. Ridiculous!

Crew was very rude and uncaring. When someone tried to place their bag in overhead bin and they asked for help, crew told them they could not assist. Crew member then told the customer if they couldn’t place into overhead bin on their own, they should have checked in bag. When other customer helped to place the bag in the overhead bin, they were given evil look by crew member and told to hurry back to their uncomfortable middle seat. This was despite the fact that the plane did not leave until 30 minutes later. The flight was ~80% full; when final people boarded, they were forced into middle seats with no room for comfort. There were a handful of emergency row seats unoccupied. When asked if any of the emergency row seats may be used, the crew said that they would cost extra. Normally if a flight is completely boarded and there are open seats, the crew at least gives thought to asking someone if they want to re-locate to the more comfortable seat, especially on a long flight.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

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

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.