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

Currently priced at $336, American Airlines will fly you from San Luis Obispo to Washington, D.C. Dulles Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from $337 and $403, respectively. These flights start at 37% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from San Luis Obispo to Washington, D.C. Dulles Intl Airport one-way?

$174 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Hawaiian Airlines and United Airlines, with prices starting from $208 and $209, respectively.

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

Travelers seeking maximum savings on their San Luis Obispo to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday 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 San Luis Obispo to Washington, D.C. Dulles Intl Airport?

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 52% on the overall cost on flights from San Luis Obispo to Washington, D.C. Dulles Intl Airport.

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

Our data shows that November tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from San Luis Obispo. Users have commonly found prices around $516 for the month, but tickets can be as low as $294. Due to multiple factors, prepare for potentially higher prices in February.

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

Most trusted provider : When it comes to deals on San Luis Obispo-Washington, D.C. Dulles Intl Airport 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 San Luis Obispo-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

San Luis Obispo County (SBP), located 3.3 mi from the city center, is the airport you fly out of when you book flights from San Luis Obispo to Washington, D.C. Dulles Intl. 2 airlines have flights from County to Washington, D.C. Dulles Intl on a regular basis. Booking flights from San Luis Obispo County to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

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

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

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

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

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

$174+ Save on Flights from San Luis Obispo to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from San Luis Obispo to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$336 (American Airlines)
One-way from	$174 (Alaska Airlines)
Popular in	March
Cheapest in	January
Average price	$724

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

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

Search Deals

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

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

Search Deals

Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from San Luis Obispo to Dulles Intl

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

Sat 4/2612:26 pmSBP - IAD

1 stop7h 16mAmerican Airlines

Sat 5/36:18 amIAD - SBP

1 stop8h 15mAmerican Airlines

Deal found 3/23

$336

Sat 5/315:55 pmSBP - IAD

1 stop8h 13mUnited Airlines

Tue 6/35:53 pmIAD - SBP

1 stop9h 06mUnited Airlines

Deal found 3/24

$337

Sat 5/317:35 pmSBP - IAD

1 stop9h 01mAlaska Airlines

Tue 6/36:30 amIAD - SBP

2 stops18h 45mAlaska Airlines

Deal found 3/24

$403

Thu 11/206:00 amSBP - IAD

1 stop9h 45mHawaiian Airlines

Thu 12/44:15 pmIAD - SBP

1 stop8h 33mHawaiian Airlines

Deal found 3/23

$447

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

Sat 4/2612:26 pmSBP - IAD

1 stop7h 16mAmerican Airlines

Sat 5/36:18 amIAD - SBP

1 stop8h 15mAmerican Airlines

Deal found 3/23

$336

Sat 5/315:55 pmSBP - IAD

1 stop8h 13mUnited Airlines

Tue 6/35:53 pmIAD - SBP

1 stop9h 06mUnited Airlines

Deal found 3/24

$337

Sat 5/317:35 pmSBP - IAD

1 stop9h 01mAlaska Airlines

Tue 6/36:30 amIAD - SBP

2 stops18h 45mAlaska Airlines

Deal found 3/24

$403

Sun 5/116:05 amSBP - IAD

1 stop8h 54mHawaiian Airlines

Tue 6/35:14 pmIAD - SBP

1 stop8h 01mHawaiian Airlines

Deal found 3/24

$455

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

Wed 4/23:22 pmSBP - IAD

2 stops23h 00mAlaska Airlines

Tue 4/85:30 pmIAD - SBP

2 stops24h 12mAlaska Airlines

Deal found 3/23

$595

Wed 4/26:00 amSBP - IAD

1 stop7h 58mHawaiian Airlines

Tue 4/85:30 pmIAD - SBP

1 stop8h 03mHawaiian Airlines

Deal found 3/23

$602

Wed 4/212:29 pmSBP - IAD

2 stops8h 29mAmerican Airlines

Tue 4/85:00 amIAD - SBP

2 stops9h 33mAmerican Airlines

Deal found 3/23

$633

Wed 4/237:14 pmSBP - IAD

1 stop9h 29mHawaiian Airlines

Wed 4/3010:00 amIAD - SBP

1 stop11h 22mHawaiian Airlines

Deal found 3/24

$510

Sat 4/2612:26 pmSBP - IAD

1 stop7h 16mAmerican Airlines

Sat 5/36:18 amIAD - SBP

1 stop8h 15mAmerican Airlines

Deal found 3/23

$336

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

Sat 5/242:05 pmSBP - IAD

1 stop25h 20mAlaska Airlines

Deal found 3/23

$174

Fri 5/27:14 pmSBP - IAD

1 stop9h 29mHawaiian Airlines

Deal found 3/23

$208

Thu 4/172:43 pmSBP - IAD

1 stop7h 26mUnited Airlines

Deal found 3/24

$209

Thu 4/177:09 pmSBP - IAD

2 stops10h 29mAmerican Airlines

Deal found 3/24

$214

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Sat 4/26

12:26 pm-10:42 pm

1 stop7h 16m

Washington, D.C. Dulles Intl

Sat 5/3

6:18 am-11:33 am

1 stop8h 15m

$336

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Sat 5/31

5:55 pm-5:08 am

1 stop8h 13m

Washington, D.C. Dulles Intl

Tue 6/3

5:53 pm-11:59 pm

1 stop9h 06m

$337

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Sat 5/31

7:35 pm-7:36 am

1 stop9h 01m

Washington, D.C. Dulles Intl

Tue 6/3

6:30 am-10:15 pm

2 stops18h 45m

$403

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Sun 5/11

6:05 am-5:59 pm

1 stop8h 54m

Washington, D.C. Dulles Intl

Tue 6/3

5:14 pm-10:15 pm

1 stop8h 01m

$455

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Sat 5/24

2:05 pm-6:25 pm

1 stop25h 20m

$174

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Fri 5/2

7:14 pm-7:43 am

1 stop9h 29m

$208

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Thu 4/17

2:43 pm-1:09 am

1 stop7h 26m

$209

San Luis ObispoWashington, D.C.

SBP - IAD

SBPIAD

San Luis Obispo County

Thu 4/17

7:09 pm-8:38 am

2 stops10h 29m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Compare providers for flights from San Luis Obispo to Dulles Intl

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

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	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 San Luis Obispo-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Luis Obispo-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Luis Obispo-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Luis Obispo-Washington, D.C. Dulles Intl Airport 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 San Luis Obispo-Washington, D.C. Dulles Intl Airport 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 San Luis Obispo to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Luis Obispo 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 San Luis Obispo to Washington, D.C. Dulles Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from San Luis Obispo to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San Luis Obispo to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 10% on flights from San Luis Obispo to Washington, D.C. Dulles Intl Airport by exploring options for tickets at noon.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

To help decide which airline to fly from San Luis Obispo to Washington, D.C., see what other customers have to say about Alaska Airlines, Hawaiian Airlines and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,785 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,785 reviews

Alaska Airlines

8.0

Very good

9,785 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.9

Good

2,330 reviews

Alaska Airlines

8.0

Very good

9,785 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,605 reviews

Alaska Airlines

8.0

Very good

9,785 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,785 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What airport do you fly from for flights from San Luis Obispo to Washington, D.C. Dulles Intl?
San Luis Obispo County (SBP), located 3.3 mi from the city center, is the airport you fly out of when you book flights from San Luis Obispo to Washington, D.C. Dulles Intl. 2 airlines have flights from County to Washington, D.C. Dulles Intl on a regular basis. Booking flights from San Luis Obispo County to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.
What are the cheapest airlines flying from San Luis Obispo to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $336, American Airlines will fly you from San Luis Obispo to Washington, D.C. Dulles Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from $337 and $403, respectively. These flights start at 37% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from San Luis Obispo to Washington, D.C. Dulles Intl Airport one-way?
$174 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Hawaiian Airlines and United Airlines, with prices starting from $208 and $209, respectively.
Can I find deals for flights from San Luis Obispo to Dulles Intl that include hotel bookings?
Yes. In addition to deals on San Luis Obispo to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Luis Obispo to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Luis Obispo to Dulles Intl.
Can I find deals for business class flights from San Luis Obispo to Dulles Intl?
Yes. Cheapflights offers flight deals from San Luis Obispo to Dulles Intl 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 San Luis Obispo to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from San Luis Obispo to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San Luis Obispo to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $387). 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

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Springfield

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Top 2 airlines flying from San Luis Obispo to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$264	Average$445	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$344	Average$578	FlexibilityNo cancel fee	On-time69%

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$174+ Cheap flights from San Luis Obispo (SBP) to Dulles Intl (IAD)

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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

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Cheap flight deals from San Luis Obispo to Dulles Intl

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Luis Obispo to Dulles Intl

Cheapest flights from San Luis Obispo to Dulles IntlExplore the most affordable flight options available from San Luis Obispo to Dulles Intl. 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 San Luis Obispo to Dulles Intl. 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 San Luis Obispo to Washington, D.C. Dulles Intl Airport that are best for you.

Compare providers for flights from San Luis Obispo to Dulles Intl

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 San Luis Obispo to Dulles Intl in March.

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

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

Cheapflights Insights

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

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

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

Find hourly flight availability from San Luis Obispo to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from San Luis Obispo to Dulles Intl. 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 from for flights from San Luis Obispo to Washington, D.C. Dulles Intl?

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

What are the cheapest airlines to fly from San Luis Obispo to Washington, D.C. Dulles Intl Airport one-way?

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

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

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

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

Traveling to a place near San Luis Obispo?

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Alternative routes for San Luis Obispo to Dulles Intl

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Top 2 airlines flying from San Luis Obispo to Dulles Intl

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