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 Alaska Airlines. Our recent data shows that you can find tickets from as low as $318 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $351 and $417 round-trip. Alaska Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as $159 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $165 and Hawaiian Airlines from $225 one-way.

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.

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.

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).

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 $551. Cheapflights users have found deals in the month of April for as cheap as $329. The most expensive prices can be found in the month of June.

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.

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.

$159+ Flights from Washington, D.C. Dulles Intl Airport to San Luis Obispo

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Cheap flight deals from Dulles Intl to San Luis Obispo

Round-trip from	$318 (Alaska Airlines)
One-way from	$159 (Alaska Airlines)
Popular in	May
Cheapest in	March
Average price	$492

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. 19% potential increase in price ($121 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 30, 2025.

Tue 9/169:00 amIAD - SBP

1 stop11h 37mAlaska Airlines

Wed 9/246:29 pmSBP - IAD

1 stop10h 04mAlaska Airlines

Deal found 6/30

$318

Fri 9/126:25 amIAD - SBP

2 stops12h 40mAmerican Airlines

Tue 9/1612:24 pmSBP - IAD

1 stop7h 21mAmerican Airlines

Deal found 6/29

$351

Mon 11/246:30 amIAD - SBP

1 stop8h 49mUnited Airlines

Fri 11/286:25 pmSBP - IAD

1 stop8h 02mUnited Airlines

Deal found 6/30

$417

Wed 7/305:25 pmIAD - SBP

1 stop8h 48mHawaiian Airlines

Sat 8/96:07 amSBP - IAD

1 stop9h 52mHawaiian Airlines

Deal found 6/28

$425

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 June 30, 2025.

Tue 9/169:00 amIAD - SBP

1 stop11h 37mAlaska Airlines

Wed 9/246:29 pmSBP - IAD

1 stop10h 04mAlaska Airlines

Deal found 6/30

$318

Fri 9/1211:47 amIAD - SBP

2 stops9h 56mAmerican Airlines

Tue 9/1612:24 pmSBP - IAD

1 stop7h 21mAmerican Airlines

Deal found 6/30

$351

Mon 11/246:30 amIAD - SBP

1 stop8h 49mUnited Airlines

Fri 11/286:25 pmSBP - IAD

1 stop8h 02mUnited Airlines

Deal found 6/30

$417

Wed 7/305:25 pmIAD - SBP

1 stop8h 48mHawaiian Airlines

Sat 8/96:07 amSBP - IAD

1 stop9h 52mHawaiian Airlines

Deal found 6/28

$425

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 June 30, 2025 and is based on user searches.

Mon 7/75:25 pmIAD - SBP

1 stop8h 48mHawaiian Airlines

Fri 7/116:07 amSBP - IAD

1 stop9h 52mHawaiian Airlines

Deal found 6/30

$544

Mon 7/75:25 pmIAD - SBP

1 stop8h 48mAlaska Airlines

Fri 7/116:07 amSBP - IAD

1 stop9h 52mAlaska Airlines

Deal found 6/28

$545

Thu 7/106:27 amIAD - SBP

2 stops12h 38mAmerican Airlines

Mon 7/146:00 amSBP - IAD

2 stops13h 46mAmerican Airlines

Deal found 6/30

$567

Tue 7/152:45 pmIAD - SBP

1 stop9h 08mUnited Airlines

Sat 7/196:00 pmSBP - IAD

1 stop8h 18mUnited Airlines

Deal found 6/29

$451

Tue 7/295:25 pmIAD - SBP

1 stop8h 48mAlaska Airlines

Tue 8/56:07 amSBP - IAD

1 stop9h 52mAlaska Airlines

Deal found 6/29

$369

Tue 7/296:27 amIAD - SBP

1 stop7h 53mAmerican Airlines

Tue 8/56:00 amSBP - IAD

2 stops10h 36mAmerican Airlines

Deal found 6/29

$374

Wed 7/305:25 pmIAD - SBP

1 stop8h 48mHawaiian Airlines

Sat 8/96:07 amSBP - IAD

1 stop9h 52mHawaiian Airlines

Deal found 6/28

$425

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 June 30, 2025.

Tue 10/75:47 pmIAD - SBP

1 stop7h 51mAlaska Airlines

Deal found 6/29

$159

Tue 10/711:41 amIAD - SBP

2 stops9h 43mAmerican Airlines

Deal found 6/29

$165

Sat 7/125:25 pmIAD - SBP

1 stop9h 15mHawaiian Airlines

Deal found 6/30

$225

Tue 10/712:35 pmIAD - SBP

3 stops13h 03mMultiple Airlines

Deal found 6/29

$523

Sat 7/128:35 amIAD - SBP

3 stops15h 18mUnited Airlines

Deal found 6/29

$676

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

Tue 9/16

9:00 am-5:37 pm

1 stop11h 37m

San Luis Obispo County

Wed 9/24

6:29 pm-7:33 am

1 stop10h 04m

$318

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Fri 9/12

6:25 am-4:05 pm

2 stops12h 40m

San Luis Obispo County

Tue 9/16

12:24 pm-10:45 pm

1 stop7h 21m

$351

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Mon 11/24

6:30 am-12:19 pm

1 stop8h 49m

San Luis Obispo County

Fri 11/28

6:25 pm-5:27 am

1 stop8h 02m

$417

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Wed 7/30

5:25 pm-11:13 pm

1 stop8h 48m

San Luis Obispo County

Sat 8/9

6:07 am-6:59 pm

1 stop9h 52m

$425

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 10/7

5:47 pm-10:38 pm

1 stop7h 51m

$159

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 10/7

11:41 am-6:24 pm

2 stops9h 43m

$165

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Sat 7/12

5:25 pm-11:40 pm

1 stop9h 15m

$225

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Tue 10/7

12:35 pm-10:38 pm

3 stops13h 03m

$523

Washington, D.C.San Luis Obispo

IAD - SBP

IADSBP

Washington, D.C. Dulles Intl

Sat 7/12

8:35 am-8:53 pm

3 stops15h 18m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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 $515). 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.

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. Dulles Intl Airport to San Luis Obispo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,533 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,852 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Alaska Airlines. Our recent data shows that you can find tickets from as low as $318 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $351 and $417 round-trip. Alaska Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to San Luis Obispo one-way?
One-way options have recently been found by users for as low as $159 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $165 and Hawaiian Airlines from $225 one-way.
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 $515). 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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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$497	FlexibilityNo cancel fee	On-time69%

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$159+ 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 10/7. 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

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Cheap flight deals from Dulles Intl to San Luis Obispo

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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 June 30, 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 June 30, 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.

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?

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?

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

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?

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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 June 30, 2025.