SBP - IAD

$195 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 5/19. 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 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
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Everything you should know

Cheapest round-trip
$315
Typical prices: $613-$506
United Airlines
Wed 7/29Tue 8/4
SBP - IAD • 1 stop
Cheapest one-way
$195
Typical prices: $204-$223
Alaska Airlines
Tue 5/19
SBP - IAD • 1 stop
Top airlines
Cheapest • from $315 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Luis Obispo and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $406 (round-trip)
Shortest trip • 7h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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 Dulles Intl!
Flight Deals
Booking Insights
Flight 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

Wed, Jul 29 - Tue, Aug 4
United Airlines Logo
7:04 pm - 7:30 am
SBP
-
IAD
9h 26m
1 stop
United Airlines Logo
6:30 am - 11:38 am
IAD
-
SBP
8h 08m
1 stop
$315United Airlines
Wed, Jun 24 - Mon, Jun 29
United Airlines Logo
7:04 pm - 7:30 am
SBP
-
IAD
9h 26m
1 stop
United Airlines Logo
6:30 am - 11:38 am
IAD
-
SBP
8h 08m
1 stop
$352United Airlines
Wed, Jun 3 - Sat, Jun 6
American Airlines Logo
6:52 pm - 8:50 am
SBP
-
IAD
10h 58m
2 stops
American Airlines Logo
6:15 am - 12:00 pm
IAD
-
SBP
8h 45m
1 stop
$357American Airlines
Wed, Jun 3 - Sat, Jun 6
American Airlines Logo
6:52 pm - 8:50 am
SBP
-
IAD
10h 58m
2 stops
American Airlines Logo
12:00 pm - 10:45 pm
IAD
-
SBP
13h 45m
2 stops
$362American Airlines
Fri, Jun 5 - Sat, Jun 6
United Airlines Logo
12:42 pm - 12:45 am
SBP
-
IAD
9h 03m
1 stop
United Airlines Logo
5:48 pm - 11:44 pm
IAD
-
SBP
8h 56m
1 stop
$371United Airlines
Wed, Jul 1 - Wed, Jul 8
United Airlines Logo
12:42 pm - 12:45 am
SBP
-
IAD
9h 03m
1 stop
United Airlines Logo
6:30 am - 11:38 am
IAD
-
SBP
8h 08m
1 stop
$374United Airlines
Tue, May 19 - Sat, May 23
Alaska Airlines Logo
6:00 am - 5:42 pm
SBP
-
IAD
8h 42m
1 stop
Alaska Airlines Logo
7:37 pm - 2:19 pm
IAD
-
SBP
21h 42m
1 stop
$389Alaska Airlines
Wed, Jun 3 - Sat, Jun 6
American Airlines Logo
6:52 pm - 8:50 am
SBP
-
IAD
10h 58m
2 stops
American Airlines Logo
6:14 am - 12:01 pm
IAD
-
SBP
8h 47m
1 stop
$394American Airlines
Tue, May 19 - Sat, May 23
American Airlines Logo
4:32 pm - 8:49 am
SBP
-
IAD
13h 17m
2 stops
American Airlines Logo
6:20 am - 6:22 pm
IAD
-
SBP
15h 02m
2 stops
$399American Airlines
Sat, Jul 11 - Sat, Jul 18
American Airlines Logo
7:02 pm - 11:08 am
SBP
-
IAD
13h 06m
2 stops
American Airlines Logo
6:15 am - 11:44 am
IAD
-
SBP
8h 29m
1 stop
$406American Airlines
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.

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

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

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 September, where tickets cost $0 (return) on average. On the other hand, the most expensive months are August and January, where the average cost of round-trip tickets is $672 and $633 respectively.

Good to know

Low seasonNovember
Cheapest flight$195
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly and prices are also 6% lower on average.
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 $195 for a one-way ticket and $315 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 $495 and an overall rating of 7.9, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $514 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.
7.9
Alaska AirlinesOverall score based on 12318 reviews
7.8Comfort
7.0Entertainment
8.1Boarding
8.5Crew
7.1Food
Airline reviews

Agent could not provide me a boarding pass for the second leg of my flights - yet with a partner airline. Not understood.

8.0 ExcellentAnonymous, Apr 2026
LAX - DCA
Read more Alaska Airlines reviews

Agent could not provide me a boarding pass for the second leg of my flights - yet with a partner airline. Not understood.

This was my second time flying Alaska Airline in the 1st Class cabin. Everything was fine with the exception of the food and entertainment. The food was just ok but not what I was expecting from 1st Class. A BBQ pork sandwich and baked potato. There wasnt any in-flight entertainment. I found that odd since it was a coast to coast flight Seattle to Dulles. My sister flew 1st Class on Delta on a shorter flight ( Seattle to Cincinnati) and had an awesome meal and in-flight entertainment. I typically fly Delta but there wasn’t a flight with times that fit my schedule. I am by no means a primary donna. But when my upgrade cost over $900…I didn’t use any reward miles…I was expecting more than what I got. I will never fly Alaska Airline 1st Class again. I will stick with Delta for all my travel needs whether it’s in 1st Class or coach.

Very easy, stress free airline. Was a wonderful experience. Will use again

My only complaint was how far it was from plane to baggage claim

This was my first trip with Alaska Airlines (round trip DCA to San Diego). Despite a slight delay on the return flight, I feel compelled to post a RAVE review! I cannot praise the airline and the crew enough! Everyone was kind, professional, and courteous, every step of the way- excellent service, snacks, and entertainment! On both legs of the trip I inquired whether there were any free seating upgrades and my request were granted BOTH times! I’ve flown on other airlines where they won’t do that, even when those premium seats are empty. As a customer service professional myself, I can say I left my experience feeling like a valued customer and not just a number. I NEVER expected to praise an airline lol I’ll definitely go out of my way to fly with Alaska on future trips. Thank you for such an awesome experience!

SBP to PDX 2/17/2026. One person ahead of us at the counter. One ahead of is at TSA. First to board. First row, first class. First to be served. Food and service very good. First off the aircraft. Flight was nice other than some moderately hard bumps on climb out (please find a way to control that!). Air Force landing (none of that Navy slam you to the deck stuff). Wheel chair at the bottom of the ramp waiting for my wife. Luggage out quickly, walked right up to the parking shuttle bus. First stop on the bus. I like the EMB 175 aircraft. This was as close to a perfect flight as I will ever see. Bravo!

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

I think Alaska should start including free meals on these longer trips.

Departed on time and had an efficient boarding process. The inflight wifi was not working on one of the flights.

The flights were all late and they would not refund my money

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

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

Information on your arrival and departure airports