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

$178 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $269 and $271, respectively.

What is the cheapest day to fly from San Luis Obispo to Washington, D.C. Reagan-National Airport?

Travelers seeking maximum savings on their San Luis Obispo to Washington, D.C. Reagan-National Airport flight should consider departing on Friday mornings 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 Washington, D.C. Reagan-National 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. Reagan-National Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Reagan-National 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).

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

Unlike in the morning, when flights are generally more expensive, you can save up to 33% on flights from San Luis Obispo to Washington, D.C. Reagan-National Airport by exploring options for tickets at noon.

What airport do you fly from for flights from San Luis Obispo to Washington, D.C. Reagan-National?

Located just 3.3 mi from the city center, San Luis Obispo County is the airport most travelers will use when flying to Washington, D.C. Reagan-National from San Luis Obispo. Booking flights from County (SBP) to Washington, D.C. Reagan-National should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Reagan-National from 2 different airlines.

Can I find deals for flights from San Luis Obispo to Reagan-National that include hotel bookings?

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

How can I find direct flights from San Luis Obispo to Reagan-National?

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 Reagan-National.

Can I find deals for business class flights from San Luis Obispo to Reagan-National?

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

$178+ Cheap Flights from San Luis Obispo to Washington, D.C. Reagan-National Airport

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Cheap flight deals from San Luis Obispo to Reagan-National

Round-trip from	$355 (American Airlines)
One-way from	$178 (American Airlines)
Popular in	December
Cheapest in	July
Average price	$582

From San Luis Obispo County to Washington, D.C. Reagan-National

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One-way flight from San Luis Obispo County to Washington, D.C. Reagan-National

Search Deals

Highest demand for flights based on searches. 24% potential increase in price ($194 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($44 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from San Luis Obispo to Reagan-National

Cheapest flights from San Luis Obispo to Reagan-National
Explore the most affordable flight options available from San Luis Obispo to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Tue 10/2112:27 pmSBP - DCA

1 stop9h 32mAmerican Airlines

Sat 10/256:35 amDCA - SBP

1 stop8h 02mAmerican Airlines

Deal found 9/16

$355

Fri 10/3112:27 pmSBP - DCA

1 stop7h 33mAmerican Airlines

Wed 11/57:00 amDCA - SBP

1 stop8h 12mAmerican Airlines

Deal found 9/16

$362

Thu 11/67:11 pmSBP - DCA

1 stop8h 49mAmerican Airlines

Tue 11/117:00 amDCA - SBP

1 stop8h 12mAmerican Airlines

Deal found 9/15

$375

Fri 10/3112:27 pmSBP - DCA

1 stop7h 33mAmerican Airlines

Thu 11/66:30 amDCA - SBP

1 stop8h 13mAmerican Airlines

Deal found 9/17

$382

Sat 11/16:05 amSBP - DCA

2 stops10h 54mAmerican Airlines

Thu 11/610:15 amDCA - SBP

2 stops11h 14mAmerican Airlines

Deal found 9/17

$385

Best flights from San Luis Obispo to Reagan-National
Discover carefully curated flight deals from San Luis Obispo to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2025.

Tue 10/2112:27 pmSBP - DCA

1 stop9h 32mAmerican Airlines

Sat 10/256:35 amDCA - SBP

1 stop8h 02mAmerican Airlines

Deal found 9/16

$355

Sat 11/85:27 pmSBP - DCA

1 stop19h 33mAlaska Airlines

Wed 11/198:59 amDCA - SBP

1 stop8h 06mAlaska Airlines

Deal found 9/16

$355

Sat 11/16:05 amSBP - DCA

2 stops8h 55mAmerican Airlines

Wed 11/57:00 amDCA - SBP

1 stop8h 12mAmerican Airlines

Deal found 9/16

$360

Fri 10/3112:27 pmSBP - DCA

1 stop7h 33mAmerican Airlines

Wed 11/57:00 amDCA - SBP

1 stop8h 12mAmerican Airlines

Deal found 9/16

$362

Last-minute flights from San Luis Obispo to Reagan-National
Discover last-minute flight deals from San Luis Obispo to Reagan-National. Data last updated September 17, 2025 and is based on user searches.

Tue 10/142:14 pmSBP - DCA

2 stops28h 45mAlaska Airlines

Tue 10/218:59 amDCA - SBP

1 stop7h 40mAlaska Airlines

Deal found 9/15

$419

Tue 10/1412:27 pmSBP - DCA

1 stop9h 32mAmerican Airlines

Tue 10/2111:59 amDCA - SBP

2 stops9h 28mAmerican Airlines

Deal found 9/15

$438

Tue 10/2112:27 pmSBP - DCA

1 stop9h 32mAmerican Airlines

Sat 10/256:35 amDCA - SBP

1 stop8h 02mAmerican Airlines

Deal found 9/16

$355

Fri 10/3112:27 pmSBP - DCA

1 stop7h 33mAmerican Airlines

Wed 11/57:00 amDCA - SBP

1 stop8h 12mAmerican Airlines

Deal found 9/16

$362

Fri 10/3112:27 pmSBP - DCA

1 stop7h 33mAmerican Airlines

Thu 11/66:30 amDCA - SBP

1 stop8h 13mAmerican Airlines

Deal found 9/17

$382

One-way flights from San Luis Obispo to Reagan-National
Search for one-way flight options from San Luis Obispo to Reagan-National. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Wed 10/812:27 pmSBP - DCA

1 stop9h 32mAmerican Airlines

Deal found 9/17

$178

Tue 10/710:55 amSBP - DCA

1 stop7h 56mUnited Airlines

Deal found 9/16

$269

Mon 12/17:37 pmSBP - DCA

2 stops22h 25mAlaska Airlines

Deal found 9/17

$271

Mon 9/295:23 pmSBP - DCA

1 stop19h 43mAlaska Airlines

Deal found 9/16

$284

Mon 12/17:11 pmSBP - DCA

1 stop8h 49mAmerican Airlines

Deal found 9/17

$330

Wed 10/86:22 pmSBP - DCA

3 stops21h 17mUnited Airlines

Deal found 9/17

$333

Wed 10/82:14 pmSBP - DCA

2 stops28h 00mAlaska Airlines

Deal found 9/17

$338

Mon 9/296:00 amSBP - DCA

2 stops12h 00mAmerican Airlines

Deal found 9/16

$420

Sun 11/307:37 pmSBP - DCA

2 stops22h 43mAlaska Airlines

Deal found 9/17

$488

Sun 11/307:11 pmSBP - DCA

1 stop8h 49mAmerican Airlines

Deal found 9/17

$490

Mon 9/2910:55 amSBP - DCA

1 stop7h 56mUnited Airlines

Deal found 9/15

$506

Mon 9/296:29 pmSBP - DCA

3 stops25h 21mMultiple Airlines

Deal found 9/16

$702

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Tue 10/21

12:27 pm-12:59 am

1 stop9h 32m

Washington, D.C. Reagan-National

Sat 10/25

6:35 am-11:37 am

1 stop8h 02m

$355

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Sat 11/8

5:27 pm-4:00 pm

1 stop19h 33m

Washington, D.C. Reagan-National

Wed 11/19

8:59 am-2:05 pm

1 stop8h 06m

$355

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Sat 11/1

6:05 am-6:00 pm

2 stops8h 55m

Washington, D.C. Reagan-National

Wed 11/5

7:00 am-12:12 pm

1 stop8h 12m

$360

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Fri 10/31

12:27 pm-11:00 pm

1 stop7h 33m

Washington, D.C. Reagan-National

Wed 11/5

7:00 am-12:12 pm

1 stop8h 12m

$362

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Wed 10/8

12:27 pm-12:59 am

1 stop9h 32m

$178

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Tue 10/7

10:55 am-9:51 pm

1 stop7h 56m

$269

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Mon 12/1

7:37 pm-9:02 pm

2 stops22h 25m

$271

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Mon 9/29

5:23 pm-4:06 pm

1 stop19h 43m

$284

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Mon 12/1

7:11 pm-7:00 am

1 stop8h 49m

$330

San Luis ObispoWashington, D.C.

SBP - DCA

SBPDCA

San Luis Obispo County

Wed 10/8

6:22 pm-6:39 pm

3 stops21h 17m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 16 results

Best time to book a flight from San Luis Obispo to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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. Reagan-National Airport

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

Currently, February is the cheapest month in which you can book a flight from San Luis Obispo to Washington, D.C. Reagan-National Airport (average of $278). Flying from San Luis Obispo to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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 Reagan-National

Get a feel of what it's like to fly with United Airlines and American Airlines from San Luis Obispo to Washington, D.C. Reagan-National Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,926 reviews

Reviews

1 / 20

10.0

Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

United Airlines

7.4

Good

8,926 reviews

United Airlines

7.4

Good

8,926 reviews

Reviews

1 / 20

10.0

Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,926 reviews

Reviews

1 / 20

10.0

Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

What airport do you fly from for flights from San Luis Obispo to Washington, D.C. Reagan-National?
Located just 3.3 mi from the city center, San Luis Obispo County is the airport most travelers will use when flying to Washington, D.C. Reagan-National from San Luis Obispo. Booking flights from County (SBP) to Washington, D.C. Reagan-National should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Reagan-National from 2 different airlines.
How long is the flight from San Luis Obispo to Washington, D.C. Reagan-National Airport?
Airlines like American Airlines and Alaska Airlines fly from San Luis Obispo to Washington, D.C. Reagan-National Airport in about 9h 32m. The time it takes to get you to your destination can typically vary by up to 10h 01m. The distance between San Luis Obispo and Washington, D.C. Reagan-National Airport is about 2393 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from San Luis Obispo to Washington, D.C. Reagan-National Airport round-trip?
American Airlines, at $356, was found to be the cheapest airline from San Luis Obispo to Washington, D.C. Reagan-National Airport. An alternate airline flying to your destination would be United Airlines. American Airlines is currently priced 39% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from San Luis Obispo to Washington, D.C. Reagan-National Airport one-way?
$178 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $269 and $271, respectively.
Can I find deals for flights from San Luis Obispo to Reagan-National that include hotel bookings?
Yes. In addition to deals on San Luis Obispo to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Luis Obispo to Reagan-National?
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 Reagan-National.
Can I find deals for business class flights from San Luis Obispo to Reagan-National?
Yes. Cheapflights offers flight deals from San Luis Obispo to Reagan-National 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. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from San Luis Obispo to Washington, D.C. Reagan-National Airport (average of $278). Flying from San Luis Obispo to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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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Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

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Linthicum Heights

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Dundalk

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Top 2 airlines flying from San Luis Obispo to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$356	Average$604	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$422	Average$722	FlexibilityNo cancel fee	On-time69%

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$178+ Cheap flights from San Luis Obispo (SBP) to Reagan-National (DCA)

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 10/8. 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 Reagan-National with Cheapflights

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Cheap flight deals from San Luis Obispo to Reagan-National

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One-way from

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Average price

Find flight deals from San Luis Obispo to Reagan-National

Cheapest flights from San Luis Obispo to Reagan-NationalExplore the most affordable flight options available from San Luis Obispo to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Explore the most affordable flight options available from San Luis Obispo to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from San Luis Obispo to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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. Reagan-National Airport

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

Reviews of airlines servicing Reagan-National

Related info for your journey

Find useful and relevant information for your journey from San Luis Obispo to Reagan-National. 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. Reagan-National?

How long is the flight from San Luis Obispo to Washington, D.C. Reagan-National Airport?

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

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

Can I find deals for flights from San Luis Obispo to Reagan-National that include hotel bookings?

How can I find direct flights from San Luis Obispo to Reagan-National?

Can I find deals for business class flights from San Luis Obispo to Reagan-National?

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

Traveling to a place near Washington, D.C. Reagan-National Airport?

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Alternative routes for San Luis Obispo to Reagan-National

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Top 2 airlines flying from San Luis Obispo to Reagan-National

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Cheapest flights from San Luis Obispo to Reagan-National
Explore the most affordable flight options available from San Luis Obispo to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.