Cheap flights from Washington, D.C. Dulles Intl Airport to San Diego from $77
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. Dulles Intl Airport to San Diego departing on 8/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize 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. Dulles Intl Airport to San Diego
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Southwest flights from Washington, D.C. Dulles Intl Airport to San Diego
Our best Southwest deals on Washington, D.C. Dulles Intl Airport to San Diego flight tickets
Frontier flights from Washington, D.C. Dulles Intl Airport to San Diego
Our best Frontier deals on Washington, D.C. Dulles Intl Airport to San Diego flight tickets
See travel insights to San Diego from
How to get the cheapest flight ticket from Washington, D.C. Dulles Intl 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 September, then departing from Washington, D.C. Dulles Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around $370.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Washington, D.C. Dulles Intl Airport to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $387. 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 $475.
What is the cheapest Washington, D.C. Dulles Intl to San Diego flight route?
Fly from Washington, D.C. Dulles Intl to San Diego for the best Washington, D.C. Dulles Intl - 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. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $412 when searching 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. Dulles Intl Airport for as low as $343 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl to San Diego flights?
There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl 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. Dulles Intl to San Diego?
Southwest, American Airlines, and Frontier are the most popular carriers operating from Washington, D.C. Dulles Intl to San Diego
What airlines fly to San Diego?
United Airlines, Alaska Airlines and American Airlines are the top three most popular airlines that fly to San Diego from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 65% 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. Dulles Intl Airport to San Diego on average per day?
As of July 2025, 9 flights take off from Washington, D.C. Dulles Intl Airport and land in San Diego each day. The most common flight departure time for this route is 5:00PM, with 63% of daily flights taking off in the afternoon.
How many flights depart from Washington, D.C. Dulles Intl Airport to San Diego on average per week?
As of July 2025, there are 66 flights per week flying from Washington, D.C. Dulles Intl Airport to San Diego. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
When to book flights from Washington, D.C. Dulles Intl Airport to San Diego
Cheap Washington, D.C. Dulles Intl Airport to San Diego (IAD to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to San Diego
How far is Washington, D.C. Dulles Intl to San Diego by plane?
There are 2245.8 mi between Washington, D.C. Dulles Intl and San Diego. 5h 24m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to San Diego Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to San Diego Airport are updated daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to San Diego Airport?
There are 8 operators available for flights from Washington, D.C. Dulles Intl Airport to San Diego Airport as of July 2025.
How old do you have to be to fly from Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl Airport to San Diego?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. Dulles Intl Airport to San Diego is Boeing 737 MAX 9, representing 26.87% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 22.72%, Boeing 737-900 at 14.89%, and Boeing 737 at 14.54%.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to San Diego?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and San Diego, the leading airline is United Airlines, making up 62% of the total bookings. Other popular airlines include Alaska Airlines with 25%, American Airlines with 4%, and Hawaiian Airlines with 4%.
Best airlines flying from Washington, D.C. Dulles Intl Airport to San Diego
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $110 | Free Cancellation | Rating 6.3 8,064 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.8 2,552 reviews | |||
| PriceFrom $159 | Free Cancellation | Rating 5.9 3,273 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $257 | Free Cancellation | Rating 7.4 8,843 reviews | |||
| PriceFrom $266 | Free Cancellation | Rating 8.0 7,958 reviews | |||
| PriceFrom $271 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $362 | Free Cancellation | Rating 8.0 4,258 reviews |
Alaska Airlines Flights From Washington, D.C. Dulles Intl Airport to San Diego
Alaska Airlines flies from Washington, D.C. Dulles Intl Airport to San Diego around 6 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Washington, D.C. Dulles Intl Airport to San Diego in the last 72 hours was $236 (round-trip), much lower than the average airfare cost of $349 for Alaska Airlines flights on this route.
Hawaiian Airlines Flights From Washington, D.C. Dulles Intl Airport to San Diego
Hawaiian Airlines (7.8/10 from 2,552 reviews) operates around 7 flights from Washington, D.C. Dulles Intl Airport to San Diego in any given week. The average Hawaiian Airlines airfare for this route is around $352, with deals from around $158 rare but found on momondo. Referenced prices are for round-trip Washington, D.C. Dulles Intl Airport to San Diego flight searches in the last 72 hours.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to San Diego?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to San Diego. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Washington, D.C. to San Diego with flexible booking policies on momondo?
All flight searches from Washington, D.C. to San Diego on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Washington, D.C. to San Diego?
momondo provides multiple filters to help you find the best flight to San Diego from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
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 offers price alerts on flights to San Diego from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.