SAN - IAD

$184 Find Cheap Flights from San Diego to Washington Dulles Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$342
Typical prices: $333-$559
Frontier
Fri 10/12Fri 10/19
SAN - IAD • 1 stop
Cheapest non-stop
$346
Typical prices: $338-$557
Alaska Airlines
Sat 10/20Sat 10/27
SAN - IAD • Non-stop
Nonstop flights
You can fly direct with United Airlines and Alaska Airlines. Average duration is 4h 58m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 12 weeks in advance save around 50% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $232 (round-trip)
Shortest trip • 6h 39m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Diego to Dulles Intl (SAN-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Dulles Intl

Tue, Oct 20 - Mon, Oct 26
Frontier Logo
3:14 pm - 6:20 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
12h 06m2 stops San Francisco Las Vegas Harry Reid Intl
Frontier Logo
6:00 am - 7:49 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
16h 49m1 stop Las Vegas Harry Reid Intl
$344Frontier
Sat, Oct 24 - Mon, Oct 26
Frontier Logo
5:44 pm - 6:20 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
9h 36m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:00 am - 7:49 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
16h 49m1 stop Las Vegas Harry Reid Intl
$345Frontier
Tue, Oct 20 - Tue, Oct 27
Alaska Airlines Logo
9:46 am - 5:50 pmSAN  San Diego-IAD Washington, D.C. Dulles Intl
5h 04mnonstop
Alaska Airlines Logo
7:24 pm - 9:53 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
5h 29mnonstop
$346Alaska Airlines
Sat, Oct 24 - Sat, Oct 31
Multiple Airlines Logo
5:44 pm - 6:20 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
9h 36m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:02 am - 2:38 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
10h 36m1 stop Seattle/Tacoma Intl
$346Multiple Airlines
Sat, Oct 24 - Tue, Oct 27
Multiple Airlines Logo
5:44 pm - 6:20 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
9h 36m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:02 am - 2:38 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
10h 36m1 stop Seattle/Tacoma Intl
$346Multiple Airlines
Fri, Feb 12 - Tue, Feb 16
United Airlines Logo
2:30 pm - 12:50 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
7h 20m1 stop Los Angeles
United Airlines Logo
8:30 am - 11:08 amIAD  Washington, D.C. Dulles Intl-SAN San Diego
5h 38mnonstop
$347United Airlines
Wed, Feb 17 - Mon, Feb 22
United Airlines Logo
2:30 pm - 12:50 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
7h 20m1 stop Los Angeles
United Airlines Logo
5:55 pm - 8:33 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
5h 38mnonstop
$347United Airlines
Sat, Oct 24 - Tue, Oct 27
Alaska Airlines Logo
11:10 am - 11:59 pmSAN  San Diego-IAD Washington, D.C. Dulles Intl
9h 49m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:24 pm - 9:53 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
5h 29mnonstop
$347Alaska Airlines
Thu, Oct 22 - Sun, Oct 25
American Airlines Logo
9:25 pm - 8:44 amSAN  San Diego-IAD Washington, D.C. Dulles Intl
8h 19m1 stop Charlotte Douglas
American Airlines Logo
5:01 am - 9:10 amIAD  Washington, D.C. Dulles Intl-SAN San Diego
7h 09m1 stop Charlotte Douglas
$352American Airlines
Thu, Nov 5 - Sun, Nov 8
American Airlines Logo
7:15 am - 6:19 pmSAN  San Diego-IAD Washington, D.C. Dulles Intl
8h 04m1 stop Dallas/Fort Worth
American Airlines Logo
7:09 pm - 11:56 pmIAD  Washington, D.C. Dulles Intl-SAN San Diego
7h 47m1 stop Dallas/Fort Worth
$352American Airlines
Booking Insights

Price, demand and travel trends for San Diego to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from San Diego to Washington, D.C. Dulles Intl Airport with more confidence.

How much is a round-trip flight from San Diego to Washington, D.C. Dulles Intl Airport?

Round-trip flights from San Diego to Washington, D.C. Dulles Intl Airport start at $342. Prices are typical for this route right now, with typical round-trip fares ranging from $333 to $559. The lowest price found in the past 5 days was $342 on Frontier.

What's the cheapest day of the week to fly from San Diego to Washington, D.C. Dulles Intl Airport?

Friday is the cheapest day of the week to fly from San Diego to Washington, D.C. Dulles Intl Airport, it is 7% cheaper than the average day. Sunday is the most expensive day with flight prices 42% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from San Diego to Washington, D.C. Dulles Intl Airport?

  • October is the cheapest month to fly from San Diego to Washington, D.C. Dulles Intl Airport at $360 round-trip.
  • July ($480) and March ($465) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 33% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from San Diego to Washington, D.C. Dulles Intl Airport the cheapest?

Flights from San Diego to Washington, D.C. Dulles Intl Airport are cheapest 12 weeks before departure. Booking in this window typically costs about 50% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from San Diego to Dulles Intl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Key details for San Diego to Washington, D.C. Dulles Intl Airport flights

Low season

February

Cheapest flight

$184
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from San Diego to Washington, D.C. Dulles Intl Airport

When to book flights from San Diego to Dulles Intl

Are your dates flexible? Find out the best times to travel from San Diego to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your San Diego to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which cities can I connect to from Washington Dulles Airport (IAD)?

    IAD receives both domestic and foreign passengers. These passengers have an opportunity to visit and enjoy the beautiful scenery of the nearby cities in Washington upon deplaning at IAD. Some of the cities you can visit are Willard, Hatton town, Floris and Carters.

  • Can I upgrade to a first-class room if I book economy on a flight to Washington Dulles Airport from San Diego?

    The Austrian OS 7904, SAS SK 3984, Brussels SN 8848, Ethiopian ET 1363, and United UA 2282 allow you to upgrade from economy to first-class rooms upon the availability of space and seats in flight. Passengers request to do so online and if approved, they top up the initial fare.

  • What is the carry-on policy for flights to Washington Dulles Airport from San Diego (SAN)?

    All airlines are sensitive to the weight of baggage brought on board by passengers. Domestic flights in the U.S., especially on American, Delta, and United Airlines are allowed up to around 10 bags at cheaper charges as opposed to flights going outside the U.S.

  • Which eco-friendly airlines fly to Washington Dulles Airport from San Diego Airport?

    KLM, Alaska, and United Airlines are working hard to safeguard the environment from the impact of carbon emissions. Some use sustainable fuel such as biofuel and acquire modern flights with fuel-efficient engines.

  • Which airlines offer extra legroom and free seat selection on San Diego to Washington, D.C. Dulles Intl Airport flights?

    Among airlines operating San Diego to Washington, D.C. Dulles Intl Airport flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Alaska Airlines: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from San Diego to Washington, D.C. Dulles Intl Airport?

    2 airlines operate flights between San Diego and Washington, D.C. Dulles Intl Airport. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Alaska Airlines

  • Which airports can I use when flying from San Diego to Washington, D.C. Dulles Intl Airport?

    Flights from San Diego to Washington, D.C. Dulles Intl Airport usually depart from San Diego (SAN) and arrive at Washington, D.C. Dulles Intl (IAD).

  • Which airlines include bags at no extra cost on San Diego to Washington, D.C. Dulles Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • American Airlines: a cabin bag and a checked bag in First Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from San Diego to Washington, D.C. Dulles Intl Airport?

    Four cabin classes are available on flights from San Diego to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from San Diego to Washington, D.C. Dulles Intl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $232 round-trip via Dallas/Fort Worth (DFW), compared to $418 for nonstop.

  • What is the standard checked-bag allowance on flights from San Diego to Washington, D.C. Dulles Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from San Diego to Washington, D.C. Dulles Intl Airport?

    The Boeing 737 family is used most often on this route, operated mainly by American Airlines and United Airlines. Other aircraft seen on the route include Boeing 737 MAX 9 variants.

  • Which airports do connecting flights from San Diego to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from San Diego to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Dallas/Fort Worth (DFW) - 29% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 18% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 14% of one-stop connections
    • Charlotte Douglas (CLT) - 11% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from San Diego to Washington, D.C. Dulles Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 35% on the San Diego to Washington, D.C. Dulles Intl Airport route. Friday is the cheapest departure day at $386 round-trip on average, while Sunday is the most expensive at $591, a difference of $205. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from San Diego to Washington, D.C. Dulles Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Diego to Washington, D.C. Dulles Intl Airport route, 9% of flights were delayed in the past 3 months, with delays averaging 2 hours 17 minutes.

  • How are flight departures from San Diego to Washington, D.C. Dulles Intl Airport spread across the day?

    Morning is the busiest departure period on San Diego to Washington, D.C. Dulles Intl Airport flights, with 50% of flights leaving in that window. Afternoon departures account for 25%, night flights for 25%, and evening flights for 0%.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

  • What are the earliest and latest flights from San Diego to Washington, D.C. Dulles Intl Airport?

    These are the earliest and latest flight times available from San Diego to Washington, D.C. Dulles Intl Airport:

    • Earliest: departs at 8:00 am and lands at 12:58 pm
    • Latest: departs at 9:45 pm and lands at 2:43 am.

    The flight takes about 4h 58m.

  • How expensive are last-minute San Diego to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 75% above the route average of $414. Book 12 weeks before departure for the lowest fares.

  • How long is a flight from San Diego to Washington, D.C. Dulles Intl Airport?

    A nonstop flight from San Diego to Washington, D.C. Dulles Intl Airport takes 4h 58m, covering 2,248 miles.

  • Do I need a passport to fly from San Diego to Washington, D.C. Dulles Intl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from San Diego to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $342 to $2,889. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from San Diego to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from San Diego to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $190, which is 33% below the typical average for this route.

  • How do delay rates compare for morning and evening flights from San Diego to Washington, D.C. Dulles Intl Airport?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from San Diego to Washington, D.C. Dulles Intl Airport?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 6h 39m, compared with 7h 18m via Denver Intl (DEN) and 7h 34m via Chicago O'Hare Intl (ORD).

  • What is the time difference between San Diego and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 3 hours ahead of San Diego (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

  • How much should I expect to pay for a San Diego to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from San Diego to Washington, D.C. Dulles Intl Airport range from $333 to $559, with an average of $414 over the past 12 months. Anything below $333 counts as a good deal.

  • Which airlines offer Wi-Fi on San Diego to Washington, D.C. Dulles Intl Airport flights?

    Two airlines offer in-flight Wi-Fi on San Diego to Washington, D.C. Dulles Intl Airport flights:

    • • Alaska Airlines
    • • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking San Diego to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $386 - about $205 less than Sunday (35% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 12 weeks before you fly. On this route, that window historically saves about 50% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Diego to Washington, D.C. Dulles Intl Airport trip for October. Fares historically average $360 round-trip in that month - typically $120 less than the most expensive month, which is July (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 91% of United Airlines flights from San Diego to Washington, D.C. Dulles Intl Airport arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 91%. When flights on this route do arrive late, the average delay is 2 hours 17 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Dallas/Fort Worth Airport (DFW) can be cheaper than flying direct. The cheapest layover option averages $232 round-trip on this route - about $186 less than direct flights (based on the last 12 months).
  • Flights from San Diego to Washington City use San Diego International Airport (SAN) and Washington, D.C. Dulles Intl Airport (IAD) as the departure and destination Airports. SAN is the major gateway to international flights, with many airlines; Alaska, Delta, American, SAS, Ethiopian, Brussels, and United on this route is a surety that you can’t miss a flight.
  • There are several transport options from San Diego City Center to San Diego International Airport. These are Bus line route 992, Pacific Surfliner, and COASTER trains on route 992. Taxi, shuttles, and Uber services are more convenient and comfortable for private transportation for those in a rush and maybe with a lot of baggage.
  • Alaska and United Airlines offer non-stop flights to IAD from SAN. Many other airlines on this route connect via layovers. Some of the major layovers are Dallas/Fort Worth (DFW), Charlotte Douglas (CLT), and Phoenix Sky Harbor Intl (PHX). Direct flights are usually cheaper, but limited chances of exposure and experiencing the unique features found in the layover cities. Connecting flight budget is usually higher but equally beneficial.
  • When traveling with pet(s), Lufthansa, Scandinavian (SAS), Delta and Alaska Airlines are the best. Their policies allow small pets in a carrier to travel in the cabin, under the seat of the owner while for bigger ones as checked luggage in the cargo section-where temperature, and pressures are moderated for their safe travel. It is good to book earlier and enquire more about the pet travel policies on the intended airline.
  • Disabled persons flying from San Diego to Washington, IAD mostly prefer American and Delta airlines. Their well-maintained facilities for the disabled and expert personnel assisting the disabled make their traveling convenient. However, disabled passengers are asked to book at least 48 hours before traveling, notifying the airline management of their disability and the appropriate assistance they expect.

Prefer to fly direct from San Diego to Washington Dulles Airport?

 
Find which airlines fly direct from San Diego Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

San Diego to Washington, D.C. Dulles Intl

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to San Diego

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

More options for your flight from San Diego to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental