What is the cheapest airline that flies from San Diego to Washington, D.C. Reagan-National?

Frontier, Southwest, and Hawaiian Airlines are the most popular carriers operating from San Diego to Washington, D.C. Reagan-National

What airlines fly to Washington, D.C. Reagan-National Airport?

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from San Diego according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 7 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?

Prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

How many operators does momondo search for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?

The number of operators available for flights from San Diego Airport to Washington, D.C. Reagan-National Airport is 7 as of July 2025.

How old do you have to be to fly from San Diego Airport to Washington, D.C. Reagan-National Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Washington, D.C. Reagan-National Airport.

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$102 Cheap Flights from San Diego to Washington, D.C. Reagan-National Airport in 2025

Q: How many flights depart from San Diego to Washington, D.C. Reagan-National Airport on average per week?

As of July 2025, 19 flights take off from San Diego and land in Washington, D.C. Reagan-National Airport each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

Q: How many flights depart from San Diego to Washington, D.C. Reagan-National Airport on average per day?

As of July 2025, there are 2 flights per day flying from San Diego to Washington, D.C. Reagan-National Airport. The most common time of day flights depart is 12:00PM, with 87% of flights taking off in the afternoon.

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One-way

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Cheap round-trip flights

1:41 pm - 9:59 pmSAN-DCA

5h 18mnonstop

9:59 am - 12:20 pmDCA-SAN

5h 21mnonstop

$221Hawaiian Airlines

Find Deal

Sat, Aug 30 - Sat, Sep 6

1:41 pm - 9:59 pmSAN-DCA

5h 18mnonstop

9:59 am - 12:20 pmDCA-SAN

5h 21mnonstop

$222Hawaiian Airlines

Find Deal

Tue, Aug 26 - Tue, Sep 2

9:45 am - 8:00 pmSAN-DCA

7h 15m1 stop

3:28 pm - 7:51 pmDCA-SAN

7h 23m1 stop

$256American Airlines

Find Deal

Sat, Aug 30 - Sat, Sep 6

12:42 pm - 8:59 pmSAN-DCA

5h 17mnonstop

8:59 am - 11:20 amDCA-SAN

5h 21mnonstop

$258Alaska Airlines

Find Deal

Wed, Aug 6 - Wed, Aug 13

10:30 pm - 9:58 amSAN-DCA

8h 28m1 stop

12:50 pm - 5:59 pmDCA-SAN

8h 09m1 stop

$271United Airlines

Find Deal

Fri, Aug 29 - Sat, Aug 30

10:20 pm - 8:57 amSAN-DCA

7h 37m1 stop

7:00 am - 12:48 pmDCA-SAN

8h 48m1 stop

$272United Airlines

Find Deal

Sat, Aug 9 - Wed, Aug 13

6:35 am - 9:59 pmSAN-DCA

12h 24m1 stop

6:00 pm - 11:53 pmDCA-SAN

8h 53m1 stop

$280Frontier

Find Deal

Thu, Sep 4 - Mon, Sep 8

6:25 am - 4:59 pmSAN-DCA

7h 34m1 stop

7:00 am - 11:09 amDCA-SAN

7h 09m1 stop

$284Frontier

Find Deal

Mon, Sep 1 - Mon, Sep 8

9:45 am - 8:00 pmSAN-DCA

7h 15m1 stop

10:20 am - 2:30 pmDCA-SAN

7h 10m1 stop

$296American Airlines

Find Deal

Thu, Aug 28 - Thu, Sep 4

1:00 pm - 9:05 pmSAN-DCA

5h 05mnonstop

8:59 am - 11:45 amDCA-SAN

5h 46mnonstop

$298Alaska Airlines

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Fri, Nov 7 - Tue, Nov 11

Hawaiian Airlines flights from San Diego to Washington, D.C. Reagan-National Airport

Our best Hawaiian Airlines deals on San Diego to Washington, D.C. Reagan-National Airport flight tickets

Hawaiian Airlines

Aug 30

SAN1:41 pmSan Diego

5h 18m

DCA9:59 pmWashington, D.C. Reagan-National

Sep 6

DCA9:59 amWashington, D.C. Reagan-National

5h 21m

SAN12:20 pmSan Diego

$221

Find similar

Hawaiian Airlines

Aug 26

SAN1:41 pmSan Diego

5h 18m

DCA9:59 pmWashington, D.C. Reagan-National

Sep 2

DCA9:59 amWashington, D.C. Reagan-National

5h 21m

SAN12:20 pmSan Diego

$222

Find similar

Hawaiian Airlines

Aug 27

SAN1:41 pmSan Diego

5h 18m

DCA9:59 pmWashington, D.C. Reagan-National

Sep 3

DCA9:59 amWashington, D.C. Reagan-National

5h 21m

SAN12:20 pmSan Diego

$231

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Frontier flights from San Diego to Washington, D.C. Reagan-National Airport

Our best Frontier deals on San Diego to Washington, D.C. Reagan-National Airport flight tickets

Frontier

Jul 18

SAN11:21 amSan Diego

7h 36m

1 stop

DCA9:57 pmWashington, D.C. Reagan-National

Jul 21

DCA6:00 pmWashington, D.C. Reagan-National

8h 52m

1 stop

SAN11:52 pmSan Diego

$196

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Frontier

Jul 16

SAN12:05 pmSan Diego

20h 59m

1 stop

DCA12:04 pmWashington, D.C. Reagan-National

Jul 22

DCA7:00 amWashington, D.C. Reagan-National

7h 10m

1 stop

SAN11:10 amSan Diego

$266

Find similar

Frontier

Jul 16

SAN12:05 pmSan Diego

20h 59m

1 stop

DCA12:04 pmWashington, D.C. Reagan-National

Jul 26

DCA6:00 pmWashington, D.C. Reagan-National

8h 02m

1 stop

SAN11:02 pmSan Diego

$274

Find similar

How to get the cheapest flight ticket from San Diego to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of October is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from San Diego, with most prices found around $314. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $325.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from San Diego to Washington, D.C. Reagan-National Airport is on a Tuesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Tuesday will often find tickets for as low as $318. Flights from San Diego to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $537. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest San Diego to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $189. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the evening when prices are around $387.

What is the cheapest San Diego to Washington, D.C. Reagan-National flight route?

Fly from San Diego to Washington, D.C. Reagan-National for the best San Diego - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $364 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from San Diego for as low as $308 on momondo.

What cabin class options are available on San Diego to Washington, D.C. Reagan-National flights?

There are 4 cabin classes available to choose from on San Diego to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Diego to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of July 2025, prices for San Diego to Washington, D.C. Reagan-National Airport flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from San Diego to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Diego to Washington, D.C. Reagan-National Airport (SAN to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Washington, D.C. Reagan-National Airport

Best Price Found	$102
Fastest flight time	5h 05m
Direct flights	Every day

The best one-way flight to Washington, D.C. Reagan-National Airport from San Diego in the past 72 hours is $102. The best round-trip flight deal from San Diego to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $221.

The fastest flight from San Diego to Washington, D.C. Reagan-National Airport takes 5h 05m

Direct flights go from San Diego to Washington, D.C. Reagan-National Airport every day.

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How far is San Diego to Washington, D.C. Reagan-National by plane?
The distance between San Diego and Washington, D.C. Reagan-National is about 2268.2 mi. Flights usually cover this in 5h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?
Prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?
The number of operators available for flights from San Diego Airport to Washington, D.C. Reagan-National Airport is 7 as of July 2025.
How old do you have to be to fly from San Diego Airport to Washington, D.C. Reagan-National Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Diego to Washington, D.C. Reagan-National Airport?
Based on momondo bookings for flights between San Diego and Washington, D.C. Reagan-National Airport, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 35.03% of the total bookings. Other popular models include Boeing 737 MAX 9 with 23.40%, Boeing 737 with 13.21%, and Boeing 737-900 with 12.56%.
What is the most popular airline from San Diego to Washington, D.C. Reagan-National Airport?
momondo data reveals that the most frequently booked airline on the route from San Diego to Washington, D.C. Reagan-National Airport is Frontier, representing 23% of all bookings. The subsequent popular airlines are American Airlines at 20%, Alaska Airlines at 18%, and United Airlines at 12%.

Best airlines flying from San Diego to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from San Diego to Washington, D.C. Reagan-National Airport with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $147	Free Cancellation	Rating 5.9 3,260 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $219	Free Cancellation	Rating 7.8 2,571 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $237	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 8,856 reviews	Search United Airlines flights
Delta	PriceFrom $276	Free Cancellation	Rating 8.0 7,953 reviews	Search Delta flights
American Airlines	PriceFrom $276	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $276	Free Cancellation	Rating 8.0 4,243 reviews	Search Southwest flights

Alaska Airlines Flights From San Diego to Washington, D.C. Reagan-National Airport
Alaska Airlines flight deals from San Diego to Washington, D.C. Reagan-National Airport start from $237 round-trip. Over the 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $407 round-trip - but some users have found much cheaper deals with momondo.
Southwest Flights From San Diego to Washington, D.C. Reagan-National Airport
$276 is the best Southwest flight deal from San Diego to Washington, D.C. Reagan-National Airport found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $508, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,243 user reviews) flies into Washington, D.C. Reagan-National Airport from San Diego 5 times in an average week so prices can vary.

Alexandria

Gettysburg

Arlington

National Harbor

Laurel

Woodbridge

Silver Spring

Tysons

Waldorf

Fredericksburg

Manassas

Gaithersburg

Rockville

Towson

Fairfax

Colonial Beach

Glen Burnie

Linthicum Heights

Reston

Springfield

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Why should I use momondo to find a flight deal from San Diego to Washington, D.C.?

Finding the right flight to Washington, D.C. from San Diego is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from San Diego to Washington, D.C. with flexible booking policies on momondo?

Flights from San Diego to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Diego to Washington, D.C.?

Once all potential San Diego to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Diego to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Diego to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Washington, D.C. Reagan-National Airport flight routes

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Cheap flights from San Diego to Washington, D.C. from $102

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Washington, D.C. departing on 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Hawaiian Airlines flights from San Diego to Washington, D.C. Reagan-National Airport

Our best Hawaiian Airlines deals on San Diego to Washington, D.C. Reagan-National Airport flight tickets

Frontier flights from San Diego to Washington, D.C. Reagan-National Airport

Our best Frontier deals on San Diego to Washington, D.C. Reagan-National Airport flight tickets

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Diego to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

What is the cheapest San Diego to Washington, D.C. Reagan-National flight route?

Fly from San Diego to Washington, D.C. Reagan-National for the best San Diego - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

What cabin class options are available on San Diego to Washington, D.C. Reagan-National flights?

There are 4 cabin classes available to choose from on San Diego to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Diego to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of July 2025, prices for San Diego to Washington, D.C. Reagan-National Airport flights are approximately 1% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from San Diego to Washington, D.C. Reagan-National?

Frontier, Southwest, and Hawaiian Airlines are the most popular carriers operating from San Diego to Washington, D.C. Reagan-National

What airlines fly to Washington, D.C. Reagan-National Airport?

How many flights depart from San Diego to Washington, D.C. Reagan-National Airport on average per day?

As of July 2025, there are 2 flights per day flying from San Diego to Washington, D.C. Reagan-National Airport. The most common time of day flights depart is 12:00PM, with 87% of flights taking off in the afternoon.

How many flights depart from San Diego to Washington, D.C. Reagan-National Airport on average per week?

As of July 2025, 19 flights take off from San Diego and land in Washington, D.C. Reagan-National Airport each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

When to book flights from San Diego to Washington, D.C. Reagan-National Airport

Cheap San Diego to Washington, D.C. Reagan-National Airport (SAN to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Washington, D.C. Reagan-National Airport

Best Price Found

Fastest flight time

Direct flights

How far is San Diego to Washington, D.C. Reagan-National by plane?

When did momondo last update prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?

How many operators does momondo search for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?

How old do you have to be to fly from San Diego Airport to Washington, D.C. Reagan-National Airport?

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

What is the most popular plane model from San Diego to Washington, D.C. Reagan-National Airport?

What is the most popular airline from San Diego to Washington, D.C. Reagan-National Airport?

Best airlines flying from San Diego to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from San Diego to Washington, D.C. Reagan-National Airport with momondo

Alaska Airlines Flights From San Diego to Washington, D.C. Reagan-National Airport

Southwest Flights From San Diego to Washington, D.C. Reagan-National Airport

Traveling to a place near Washington, D.C.?

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Washington, D.C.?

Can I find flights from San Diego to Washington, D.C. with flexible booking policies on momondo?

How can momondo help me find flights from San Diego to Washington, D.C.?

I’m not ready to book a flight from San Diego to Washington, D.C. right now. Can momondo alert me if prices change?

An easier way to manage your Washington, D.C. Reagan-National Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington, D.C.

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