What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Luis Obispo round-trip?

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to San Luis Obispo is American Airlines. Our recent data shows that you can find tickets from as low as $337 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at $370 and $371 round-trip. American Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to San Luis Obispo flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to San Luis Obispo?

Flights from Washington, D.C. Dulles Intl Airport to San Luis Obispo are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Luis Obispo.

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

April can be a great time to fly to San Luis Obispo from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $568. Cheapflights users have found deals in the month of April for as cheap as $341. The most expensive prices can be found in the month of July.

What is the cheapest time of day to fly from IAD to SBP?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to San Luis Obispo in the morning. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight at noon.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-San Luis Obispo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Luis Obispo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-San Luis Obispo flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-San Luis Obispo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-San Luis Obispo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to San Luis Obispo from Washington, D.C. Dulles Intl?

If you book a flight to San Luis Obispo from Washington, D.C. Dulles Intl, you will be flying to County, which is the city’s only airport. San Luis Obispo County (SBP) is located 3.3 mi from the center of San Luis Obispo. There are 0 flights from Washington, D.C. Dulles Intl to County per day from 2 different airlines.

Can I find deals for flights from Dulles Intl to San Luis Obispo that include hotel bookings?

Yes. In addition to deals on Dulles Intl to San Luis Obispo flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to San Luis Obispo?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to San Luis Obispo.

Can I find deals for business class flights from Dulles Intl to San Luis Obispo?

Yes. Cheapflights offers flight deals from Dulles Intl to San Luis Obispo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$267+ Flights from Washington, D.C. Dulles Intl Airport to San Luis Obispo

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1. Tell us where you want to go

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Cheap flight deals from Dulles Intl to San Luis Obispo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$337 (American Airlines)
One-way from	$267 (Alaska Airlines)
Popular in	May
Cheapest in	September
Average price	$559

Provider with most accurate pricing for Washington, D.C. Dulles Intl-San Luis Obispo County flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-San Luis Obispo County flights.

Search Deals

From Washington, D.C. Dulles Intl to San Luis Obispo County

Search Deals

One-way flight from Washington, D.C. Dulles Intl to San Luis Obispo County

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($105 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

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Find flight deals from Dulles Intl to San Luis Obispo

Cheapest flights from Dulles Intl to San Luis Obispo
Explore the most affordable flight options available from Dulles Intl to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Wed 5/146:17 amIAD - SBP

1 stop8h 15mAmerican Airlines

Sat 5/1712:25 pmSBP - IAD

1 stop7h 32mAmerican Airlines

Deal found 3/24

$337

Tue 4/157:00 amIAD - SBP

2 stops18h 33mAlaska Airlines

Tue 4/227:14 pmSBP - IAD

1 stop9h 29mAlaska Airlines

Deal found 3/24

$370

Fri 5/24:00 pmIAD - SBP

1 stop9h 40mUnited Airlines

Wed 5/76:55 pmSBP - IAD

1 stop9h 24mUnited Airlines

Deal found 3/24

$371

Tue 4/155:30 pmIAD - SBP

1 stop8h 03mHawaiian Airlines

Tue 4/227:14 pmSBP - IAD

1 stop9h 29mHawaiian Airlines

Deal found 3/24

$391

Best flights from Dulles Intl to San Luis Obispo
Discover carefully curated flight deals from Dulles Intl to San Luis Obispo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2025.

Wed 5/146:17 amIAD - SBP

1 stop8h 15mAmerican Airlines

Sat 5/1712:25 pmSBP - IAD

1 stop7h 32mAmerican Airlines

Deal found 3/24

$337

Tue 4/157:00 amIAD - SBP

2 stops18h 33mAlaska Airlines

Tue 4/227:14 pmSBP - IAD

1 stop9h 29mAlaska Airlines

Deal found 3/24

$370

Fri 5/24:00 pmIAD - SBP

1 stop9h 40mUnited Airlines

Wed 5/76:55 pmSBP - IAD

1 stop9h 24mUnited Airlines

Deal found 3/24

$371

Tue 4/155:30 pmIAD - SBP

1 stop8h 03mHawaiian Airlines

Tue 4/227:14 pmSBP - IAD

1 stop9h 29mHawaiian Airlines

Deal found 3/24

$391

Last-minute flights from Dulles Intl to San Luis Obispo
Discover last-minute flight deals from Dulles Intl to San Luis Obispo. Data last updated March 25, 2025 and is based on user searches.

Thu 4/35:58 pmIAD - SBP

2 stops23h 44mAlaska Airlines

Sun 4/66:00 amSBP - IAD

1 stop7h 58mAlaska Airlines

Deal found 3/23

$630

Thu 4/310:20 pmIAD - SBP

1 stop18h 15mUnited Airlines

Sun 4/65:00 amSBP - IAD

1 stop7h 32mUnited Airlines

Deal found 3/23

$680

Wed 4/98:15 amIAD - SBP

1 stop8h 53mUnited Airlines

Sun 4/136:25 pmSBP - IAD

1 stop9h 35mUnited Airlines

Deal found 3/24

$535

Tue 4/157:00 amIAD - SBP

2 stops18h 33mAlaska Airlines

Tue 4/227:14 pmSBP - IAD

1 stop9h 29mAlaska Airlines

Deal found 3/24

$370

Tue 4/155:00 amIAD - SBP

2 stops9h 33mAmerican Airlines

Tue 4/227:09 pmSBP - IAD

2 stops10h 29mAmerican Airlines

Deal found 3/23

$387

Tue 4/155:30 pmIAD - SBP

1 stop8h 03mHawaiian Airlines

Tue 4/227:14 pmSBP - IAD

1 stop9h 29mHawaiian Airlines

Deal found 3/24

$391

One-way flights from Dulles Intl to San Luis Obispo
Search for one-way flight options from Dulles Intl to San Luis Obispo. Find affordable one-way fares based on user searches. Data last updated March 25, 2025.

Tue 4/85:30 pmIAD - SBP

1 stop8h 03mAlaska Airlines

Deal found 3/24

$267

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Luis Obispo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Wed 5/14

6:17 am-11:32 am

1 stop8h 15m

San Luis Obispo County

Sat 5/17

12:25 pm-10:57 pm

1 stop7h 32m

$337

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 4/15

7:00 am-10:33 pm

2 stops18h 33m

San Luis Obispo County

Tue 4/22

7:14 pm-7:43 am

1 stop9h 29m

$370

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Fri 5/2

4:00 pm-10:40 pm

1 stop9h 40m

San Luis Obispo County

Wed 5/7

6:55 pm-7:19 am

1 stop9h 24m

$371

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 4/15

5:30 pm-10:33 pm

1 stop8h 03m

San Luis Obispo County

Tue 4/22

7:14 pm-7:43 am

1 stop9h 29m

$391

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 4/8

5:30 pm-10:33 pm

1 stop8h 03m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Dulles Intl to San Luis Obispo

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to San Luis Obispo in March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Luis Obispo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Luis Obispo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-San Luis Obispo flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Luis Obispo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-San Luis Obispo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to San Luis Obispo

Have a flexible travel schedule? Discover the best time to fly to San Luis Obispo from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to San Luis Obispo

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Luis Obispo (average of $374). Flying from Washington, D.C. Dulles Intl Airport to San Luis Obispo in June is currently the most expensive (average of $594). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in San Luis Obispo by month

In terms of precipitation, rainfall in San Luis Obispo ranges from 0.0 - 4.0 inches per month. December is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit San Luis Obispo when rainfall is around 0.0 in.

Temperature in San Luis Obispo by month

If weather is an important factor for your trip to San Luis Obispo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Luis Obispo

Peruse reviews from past customers who have flown with Alaska Airlines, Hawaiian Airlines and United Airlines from Washington, D.C. to San Luis Obispo to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines

8.0

Very good

9,782 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Hawaiian Airlines

7.9

Good

2,330 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines

7.4

Good

8,605 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,782 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

What airport do you fly into for flights to San Luis Obispo from Washington, D.C. Dulles Intl?
If you book a flight to San Luis Obispo from Washington, D.C. Dulles Intl, you will be flying to County, which is the city’s only airport. San Luis Obispo County (SBP) is located 3.3 mi from the center of San Luis Obispo. There are 0 flights from Washington, D.C. Dulles Intl to County per day from 2 different airlines.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Luis Obispo round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to San Luis Obispo is American Airlines. Our recent data shows that you can find tickets from as low as $337 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at $370 and $371 round-trip. American Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from Dulles Intl to San Luis Obispo that include hotel bookings?
Yes. In addition to deals on Dulles Intl to San Luis Obispo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to San Luis Obispo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to San Luis Obispo.
Can I find deals for business class flights from Dulles Intl to San Luis Obispo?
Yes. Cheapflights offers flight deals from Dulles Intl to San Luis Obispo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to San Luis Obispo?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Luis Obispo (average of $374). Flying from Washington, D.C. Dulles Intl Airport to San Luis Obispo in June is currently the most expensive (average of $594). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Morro Bay

Arroyo Grande

Avila Beach

San Simeon

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Top 2 airlines flying from Dulles Intl to San Luis Obispo

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$322	Average$466	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$391	Average$494	FlexibilityNo cancel fee	On-time69%

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$267+ Cheap flights from Dulles Intl (IAD) to San Luis Obispo (SBP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to San Luis Obispo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to San Luis Obispo

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to San Luis Obispo

Cheapest flights from Dulles Intl to San Luis ObispoExplore the most affordable flight options available from Dulles Intl to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Explore the most affordable flight options available from Dulles Intl to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Luis Obispo that are best for you.

Compare providers for flights from Dulles Intl to San Luis Obispo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to San Luis Obispo in March.

Best time to book a flight from Dulles Intl to San Luis Obispo

Have a flexible travel schedule? Discover the best time to fly to San Luis Obispo from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to San Luis Obispo

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

Rainfall in San Luis Obispo by month

Plan your trip to San Luis Obispo by taking into account the average rainfall totals by month.

Temperature in San Luis Obispo by month

Plan your trip to San Luis Obispo by taking into account the average temperature totals by month.

Reviews of airlines servicing San Luis Obispo

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to San Luis Obispo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Luis Obispo from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Luis Obispo round-trip?

Can I find deals for flights from Dulles Intl to San Luis Obispo that include hotel bookings?

How can I find direct flights from Dulles Intl to San Luis Obispo?

Can I find deals for business class flights from Dulles Intl to San Luis Obispo?

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to San Luis Obispo

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to San Luis Obispo

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Cheapest flights from Dulles Intl to San Luis Obispo
Explore the most affordable flight options available from Dulles Intl to San Luis Obispo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.