SBP - IAD

$190 Find Cheap Flights from San Luis Obispo to Washington Dulles Airport - Compare and Save

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 10/24. 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

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Everything you should know

Cheapest round-trip
$379
Alaska Airlines
Tue 9/22Tue 10/6
SBP - IAD • 1 stop
Cheapest one-way
$190
Alaska Airlines
Sat 10/24
SBP - IAD • 1 stop
Top airlines
Cheapest • from $379 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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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
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Insights
Top layover airports
Cheapest • Avg $446 (round-trip)
Shortest trip • 7h 25m (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

Tue, Sep 22 - Tue, Oct 6
Alaska Airlines Logo
3:24 pm - 6:14 pm-
23h 50m
Alaska Airlines Logo
7:24 pm - 11:43 pm-
7h 19m
$379Alaska Airlines
Sat, Jan 9 - Wed, Jan 13
Alaska Airlines Logo
6:07 am - 7:01 pm-
9h 54m
Alaska Airlines Logo
5:25 pm - 11:14 pm-
8h 49m
$379Alaska Airlines
Thu, Sep 3 - Sun, Sep 6
United Airlines Logo
2:20 pm - 12:57 am-
7h 37m
United Airlines Logo
12:40 pm - 7:57 pm-
10h 17m
$379United Airlines
Tue, Sep 1 - Sat, Sep 12
United Airlines Logo
8:00 am - 7:05 pm-
8h 05m
United Airlines Logo
1:00 pm - 5:22 pm-
7h 22m
$379United Airlines
Mon, Dec 7 - Wed, Dec 16
American Airlines Logo
12:28 pm - 10:43 pm-
7h 15m
American Airlines Logo
6:00 am - 11:39 am-
8h 39m
$379American Airlines
Sun, Dec 6 - Mon, Dec 14
American Airlines Logo
12:28 pm - 10:43 pm-
7h 15m
American Airlines Logo
6:00 am - 11:39 am-
8h 39m
$379American Airlines
Wed, Jan 6 - Wed, Jan 13
United Airlines Logo
6:55 pm - 6:00 am-
8h 05m
United Airlines Logo
5:30 pm - 11:35 pm-
9h 05m
$379United Airlines
Tue, Sep 22 - Sat, Oct 3
Alaska Airlines Logo
6:00 am - 6:14 pm-
9h 14m
Alaska Airlines Logo
7:24 pm - 11:43 pm-
7h 19m
$379Alaska Airlines
Mon, Dec 7 - Wed, Dec 16
Alaska Airlines Logo
3:45 pm - 7:01 pm-
24h 16m
Alaska Airlines Logo
5:25 pm - 11:14 pm-
8h 49m
$379Alaska Airlines
Sun, Dec 6 - Mon, Dec 14
American Airlines Logo
12:28 pm - 10:43 pm-
7h 15m
American Airlines Logo
6:00 am - 11:39 am-
8h 39m
$399American 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.

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 April, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $727 and $682 respectively.

Good to know

Low season

March

Cheapest flight

$190
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 6% 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 5 days, the lowest price for a flight from San Luis Obispo to Washington, D.C. Dulles Intl Airport was $190 for a one-way ticket and $379 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 $543 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 $562 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 12767 reviews
8.5Crew
7.8Comfort
7.0Entertainment
8.1Boarding
7.0Food
Airline reviews

Great flight, no bumps to speak of, pleasant crew, good inflight entertainment choices

10.0 ExcellentVirginia, Jul 2025
Read more Alaska Airlines reviews

Great flight, no bumps to speak of, pleasant crew, good inflight entertainment choices

A cheerful and effective crew. Tasty pre-order food options.

The flight was delayed by 3 hours and 30 minutes without any explanation.

Plane was ok. I would have liked to watch movies with a screen on the seat, and head phone were not provided. Most importantly the left left and arrived on time.

Flight was excellent , crew were very helpful and kind. No entertainment was needed as it was an overnight flight. Keep up the great work. Thank you 😊

More transparency about the fact that the aircraft is a Boeing 737-max. The flight was fine and the plane is comfortable but giving all the issues that aircraft has had, there needs to be more transparency that Alaska is using it.

Was on a red eye departed at 9pm and arrived at 5 am...we were all asleep before snacks and drinks. We were happy we got on seated and comfortable. We arrive sleepy safe and sound. That's a win! Thank you Alaska Airlines and staff!

I had a good experience and the crew was very nice and helpful.

Soda cans were mini-size; snacks were teeny. Options for entertainment on trans-continent flights were bad - no seat screens and no way to support device (as seen on other airlines) so had to hold device in position. Just overall, not good (compared to United)

First time traveling with them and they were great leaving on time arriving on time very clean planes 😊

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The flight crew where really good. Better then the crew from BNE to SFO

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Luggage management is poor, my missing luggage is still lingering.

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

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

Information on your arrival and departure airports