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

1 adult
0 bags

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Washington, D.C. to San Diego

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
WAS-SAN
5879 kmmulti-stop
Multiple Airlines Logo
SAN-WAS
5879 kmmulti-stop
Multiple Airlines
Find Deal

See travel insights to San Diego from

How to get the cheapest flight ticket from Washington, D.C. 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?

The month of August is, on average, the cheapest month to fly to San Diego from Washington, D.C., with most prices found around R5 947. The month of September is another great option to travel to San Diego, with average flight prices from Washington, D.C. averaging around R6 119.

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. when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around R6 988 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Washington, D.C. for as low as R5 690 on momondo.

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

As of October 2025, prices for Washington, D.C. to San Diego flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to San Diego

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

Cheap Washington, D.C. to San Diego (WAS to SAN) flight deals and tips

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

Direct flights

None
There are no direct flights from Washington, D.C. to San Diego. There are no popular flight routes from Washington, D.C. to San Diego.
  • How far is Washington, D.C. to San Diego by plane?

    The straight-line distance from Washington, D.C. to San Diego is 3650,2 km.

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

    Prices for flights from Washington, D.C. to San Diego Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. 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 stopovers 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. to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to San Diego?

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to San Diego. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to San Diego from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to San Diego.

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

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Washington, D.C. and alert you when they change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organise 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.
1 adult
Sa 29/11
Sa 6/12

Find better results for your trip to the United States