Cheap flights from Washington, D.C. Reagan-National Airport to San Diego from $99
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to San Diego departing on 5/31. 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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JetBlue flights from Washington, D.C. Reagan-National Airport to San Diego
Our best JetBlue deals on Washington, D.C. Reagan-National Airport to San Diego flight tickets
Alaska Airlines flights from Washington, D.C. Reagan-National Airport to San Diego
Our best Alaska Airlines deals on Washington, D.C. Reagan-National Airport to San Diego flight tickets
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How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to San Diego
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 San Diego?
If you are unable to visit San Diego during the month of February, then departing from Washington, D.C. Reagan-National Airport during the month January is also very affordable. Most momondo users find prices during this month for around $336.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Washington, D.C. Reagan-National Airport to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $388. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $473. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest time of day to depart on your flight to San Diego?
The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $339. Flights at noon are often more expensive with an average ticket price of $473.
What is the cheapest Washington, D.C. Reagan-National to San Diego flight route?
Fly from Washington, D.C. Reagan-National to San Diego for the best Washington, D.C. Reagan-National - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from Washington, D.C. Reagan-National Airport when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $368 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Washington, D.C. Reagan-National Airport for as low as $315 on momondo.
What cabin class options are available on Washington, D.C. Reagan-National to San Diego flights?
There are 4 cabin classes available to choose from on Washington, D.C. Reagan-National to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Washington, D.C. Reagan-National to San Diego?
Frontier, United Airlines, and Hawaiian Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to San Diego
What airlines fly to San Diego?
American Airlines, Frontier and Delta are the top three most popular airlines that fly to San Diego from Washington, D.C. Reagan-National Airport according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. Reagan-National Airport to San Diego on average per day?
The number of flights available between Washington, D.C. Reagan-National Airport and San Diego is 2 per day as of May 2025. The most frequent departure time is 9:00AM, with 62% of daily flights leaving at noon.
How many flights depart from Washington, D.C. Reagan-National Airport to San Diego on average per week?
As of May 2025, there are 15 flights per week flying from Washington, D.C. Reagan-National Airport to San Diego. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.
When to book flights from Washington, D.C. Reagan-National Airport to San Diego
Cheap Washington, D.C. Reagan-National Airport to San Diego (DCA to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to San Diego
How far is Washington, D.C. Reagan-National to San Diego by plane?
Washington, D.C. Reagan-National and San Diego are 2268.2 mi apart from one another. A reasonable flight in good conditions will take 5h 21m.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to San Diego Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to San Diego Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to San Diego Airport?
As of May 2025, there are 8 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to San Diego Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. Reagan-National Airport to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Reagan-National Airport to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets) (26.21% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (18.60%), Boeing 737 (13.46%), and Boeing 737-900 (11.58%).
What is the most popular airline from Washington, D.C. Reagan-National Airport to San Diego?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Reagan-National Airport to San Diego is American Airlines (26% of total bookings). The next most popular airlines are Frontier (21%), Alaska Airlines (15%), and Delta (14%).
Best airlines flying from Washington, D.C. Reagan-National Airport to San Diego
Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $148 | Free Cancellation | Rating 5.9 3,286 reviews | |||
| PriceFrom $162 | Free Cancellation | Rating 6.3 7,986 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 7.9 2,434 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 8.0 7,949 reviews | |||
| PriceFrom $257 | Free Cancellation | Rating 7.4 8,726 reviews | |||
| PriceFrom $266 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $332 | Free Cancellation | Rating 8.0 4,290 reviews |
Alaska Airlines Flights From Washington, D.C. Reagan-National Airport to San Diego
Alaska Airlines flies from Washington, D.C. Reagan-National Airport to San Diego around 2 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Washington, D.C. Reagan-National Airport to San Diego in the last 72 hours was $266 (round-trip), much lower than the average airfare cost of $368 for Alaska Airlines flights on this route.
Southwest Flights From Washington, D.C. Reagan-National Airport to San Diego
$332 is the best Southwest flight deal from Washington, D.C. Reagan-National Airport to San Diego found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $492, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,290 user reviews) flies into San Diego from Washington, D.C. Reagan-National Airport 6 times in an average week so prices can vary.
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Why should I use momondo to find a flight deal from Washington, D.C. to San Diego?
It is quick and easy to find Washington, D.C. to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.
Can I find flights from Washington, D.C. to San Diego with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Washington, D.C. to San Diego flights to just show those with flexible booking policies.
How can momondo help me find flights from Washington, D.C. to San Diego?
Once all potential Washington, D.C. to San Diego 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 Washington, D.C. to San Diego right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Washington, D.C. to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.